{"id":114,"date":"2014-12-30T09:10:11","date_gmt":"2014-12-30T09:10:11","guid":{"rendered":""},"modified":"2014-12-30T09:10:11","modified_gmt":"2014-12-30T09:10:11","slug":"","status":"publish","type":"post","link":"http:\/\/weizn.net\/?p=114","title":{"rendered":"[\u8f6c]HDFS API\u8be6\u89e3"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_17 counter-hierarchy\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><i class=\"ez-toc-glyphicon ez-toc-icon-toggle\"><\/i><\/a><\/span><\/div>\n<nav><ul class=\"ez-toc-list ez-toc-list-level-1\"><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/weizn.net\/?p=114\/#61_%E4%B8%8A%E4%BC%A0%E6%9C%AC%E5%9C%B0%E6%96%87%E4%BB%B6\" title=\"\n\t6.1 \u4e0a\u4f20\u672c\u5730\u6587\u4ef6 \n\">\n\t6.1 \u4e0a\u4f20\u672c\u5730\u6587\u4ef6 \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/weizn.net\/?p=114\/#62_%E5%88%9B%E5%BB%BAHDFS%E6%96%87%E4%BB%B6\" title=\"\n\t6.2 \u521b\u5efaHDFS\u6587\u4ef6 \n\">\n\t6.2 \u521b\u5efaHDFS\u6587\u4ef6 \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/weizn.net\/?p=114\/#63_%E5%88%9B%E5%BB%BAHDFS%E7%9B%AE%E5%BD%95\" title=\"\n\t6.3 \u521b\u5efaHDFS\u76ee\u5f55 \n\">\n\t6.3 \u521b\u5efaHDFS\u76ee\u5f55 \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/weizn.net\/?p=114\/#64_%E9%87%8D%E5%91%BD%E5%90%8DHDFS%E6%96%87%E4%BB%B6\" title=\"\n\t6.4 \u91cd\u547d\u540dHDFS\u6587\u4ef6 \n\">\n\t6.4 \u91cd\u547d\u540dHDFS\u6587\u4ef6 \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-5\" href=\"http:\/\/weizn.net\/?p=114\/#65_%E5%88%A0%E9%99%A4HDFS%E4%B8%8A%E7%9A%84%E6%96%87%E4%BB%B6\" title=\"\n\t6.5 \u5220\u9664HDFS\u4e0a\u7684\u6587\u4ef6 \n\">\n\t6.5 \u5220\u9664HDFS\u4e0a\u7684\u6587\u4ef6 \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-6\" href=\"http:\/\/weizn.net\/?p=114\/#66_%E5%88%A0%E9%99%A4HDFS%E4%B8%8A%E7%9A%84%E7%9B%AE%E5%BD%95\" title=\"\n\t6.6 \u5220\u9664HDFS\u4e0a\u7684\u76ee\u5f55 \n\">\n\t6.6 \u5220\u9664HDFS\u4e0a\u7684\u76ee\u5f55 \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-7\" href=\"http:\/\/weizn.net\/?p=114\/#67_%E6%9F%A5%E7%9C%8B%E6%9F%90%E4%B8%AAHDFS%E6%96%87%E4%BB%B6%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8\" title=\"\n\t6.7 \u67e5\u770b\u67d0\u4e2aHDFS\u6587\u4ef6\u662f\u5426\u5b58\u5728 \n\">\n\t6.7 \u67e5\u770b\u67d0\u4e2aHDFS\u6587\u4ef6\u662f\u5426\u5b58\u5728 \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-8\" href=\"http:\/\/weizn.net\/?p=114\/#68_%E6%9F%A5%E7%9C%8BHDFS%E6%96%87%E4%BB%B6%E7%9A%84%E6%9C%80%E5%90%8E%E4%BF%AE%E6%94%B9%E6%97%B6%E9%97%B4\" title=\"\n\t6.8 \u67e5\u770bHDFS\u6587\u4ef6\u7684\u6700\u540e\u4fee\u6539\u65f6\u95f4 \n\">\n\t6.8 \u67e5\u770bHDFS\u6587\u4ef6\u7684\u6700\u540e\u4fee\u6539\u65f6\u95f4 \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-9\" href=\"http:\/\/weizn.net\/?p=114\/#69_%E8%AF%BB%E5%8F%96HDFS%E6%9F%90%E4%B8%AA%E7%9B%AE%E5%BD%95%E4%B8%8B%E7%9A%84%E6%89%80%E6%9C%89%E6%96%87%E4%BB%B6\" title=\"\n\t6.9 \u8bfb\u53d6HDFS\u67d0\u4e2a\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6 \n\">\n\t6.9 \u8bfb\u53d6HDFS\u67d0\u4e2a\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6 \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-10\" href=\"http:\/\/weizn.net\/?p=114\/#610_%E6%9F%A5%E6%89%BE%E6%9F%90%E4%B8%AA%E6%96%87%E4%BB%B6%E5%9C%A8HDFS%E9%9B%86%E7%BE%A4%E7%9A%84%E4%BD%8D%E7%BD%AE\" title=\"\n\t6.10 \u67e5\u627e\u67d0\u4e2a\u6587\u4ef6\u5728HDFS\u96c6\u7fa4\u7684\u4f4d\u7f6e \n\">\n\t6.10 \u67e5\u627e\u67d0\u4e2a\u6587\u4ef6\u5728HDFS\u96c6\u7fa4\u7684\u4f4d\u7f6e \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-11\" href=\"http:\/\/weizn.net\/?p=114\/#611_%E8%8E%B7%E5%8F%96HDFS%E9%9B%86%E7%BE%A4%E4%B8%8A%E6%89%80%E6%9C%89%E8%8A%82%E7%82%B9%E5%90%8D%E7%A7%B0%E4%BF%A1%E6%81%AF\" title=\"\n\t6.11 \u83b7\u53d6HDFS\u96c6\u7fa4\u4e0a\u6240\u6709\u8282\u70b9\u540d\u79f0\u4fe1\u606f \n\">\n\t6.11 \u83b7\u53d6HDFS\u96c6\u7fa4\u4e0a\u6240\u6709\u8282\u70b9\u540d\u79f0\u4fe1\u606f \n<\/a><\/li><\/ul><\/nav><\/div>\n<p><span style=\"color:#403226;font-family:verdana, 'ms song', \u5b8b\u4f53, Arial, \u5fae\u8f6f\u96c5\u9ed1, Helvetica, sans-serif;font-size:12px;line-height:24px;\"> <\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\tHadoop\u4e2d\u5173\u4e8e\u6587\u4ef6\u64cd\u4f5c\u7c7b\u57fa\u672c\u4e0a\u5168\u90e8\u662f\u5728&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">org.apache.hadoop.fs<\/strong><\/span>&#8220;\u5305\u4e2d\uff0c\u8fd9\u4e9bAPI\u80fd\u591f\u652f\u6301\u7684\u64cd\u4f5c\u5305\u542b\uff1a\u6253\u5f00\u6587\u4ef6\uff0c\u8bfb\u5199\u6587\u4ef6\uff0c\u5220\u9664\u6587\u4ef6\u7b49\u3002\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\tHadoop\u7c7b\u5e93\u4e2d\u6700\u7ec8\u9762\u5411\u7528\u6237\u63d0\u4f9b\u7684<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u63a5\u53e3\u7c7b<\/strong><\/span>\u662f<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">FileSystem<\/strong><\/span>\uff0c\u8be5\u7c7b\u662f\u4e2a<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u62bd\u8c61\u7c7b<\/strong><\/span>\uff0c\u53ea\u80fd\u901a\u8fc7\u6765\u7c7b\u7684get\u65b9\u6cd5\u5f97\u5230\u5177\u4f53\u7c7b\u3002get\u65b9\u6cd5\u5b58\u5728\u51e0\u4e2a\u91cd\u8f7d\u7248\u672c\uff0c\u5e38\u7528\u7684\u662f\u8fd9\u4e2a\uff1a\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<blockquote style=\"margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:25px;padding-top:10px;padding-right:60px;padding-bottom:5px;padding-left:60px;background-image:none;background-attachment:initial;background-origin:initial;background-clip:initial;background-color:initial;border-top-width:2px;border-right-width:2px;border-bottom-width:2px;border-left-width:2px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:#EFEFEF;border-right-color:#EFEFEF;border-bottom-color:#EFEFEF;border-left-color:#EFEFEF;color:#333333;min-height:35px;line-height:1.6em;background-position:initial initial;background-repeat:initial initial;\">\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\tstatic FileSystem get(Configuration conf);\n\t<\/p>\n<\/blockquote>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u8be5\u7c7b\u5c01\u88c5\u4e86\u51e0\u4e4e\u6240\u6709\u7684\u6587\u4ef6\u64cd\u4f5c\uff0c\u4f8b\u5982mkdir\uff0cdelete\u7b49\u3002\u7efc\u4e0a\u57fa\u672c\u4e0a\u53ef\u4ee5\u5f97\u51fa\u64cd\u4f5c\u6587\u4ef6\u7684\u7a0b\u5e8f\u5e93\u6846\u67b6\uff1a\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<blockquote style=\"margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:25px;padding-top:10px;padding-right:60px;padding-bottom:5px;padding-left:60px;background-image:none;background-attachment:initial;background-origin:initial;background-clip:initial;background-color:initial;border-top-width:2px;border-right-width:2px;border-bottom-width:2px;border-left-width:2px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:#EFEFEF;border-right-color:#EFEFEF;border-bottom-color:#EFEFEF;border-left-color:#EFEFEF;color:#333333;min-height:35px;line-height:1.6em;background-position:initial initial;background-repeat:initial initial;\">\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\toperator()\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t{\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;&nbsp;&nbsp; \u5f97\u5230Configuration\u5bf9\u8c61\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;&nbsp;&nbsp; \u5f97\u5230FileSystem\u5bf9\u8c61\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;&nbsp;&nbsp; \u8fdb\u884c\u6587\u4ef6\u64cd\u4f5c\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t}\n\t<\/p>\n<\/blockquote>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<h3 style=\"margin-top:15px;margin-right:auto;margin-bottom:2px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;font-size:14px;font-weight:bold;\"><span class=\"ez-toc-section\" id=\"61_%E4%B8%8A%E4%BC%A0%E6%9C%AC%E5%9C%B0%E6%96%87%E4%BB%B6\"><\/span>\n\t6.1 \u4e0a\u4f20\u672c\u5730\u6587\u4ef6<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u901a\u8fc7&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">FileSystem.copyFromLocalFile\uff08Path src\uff0cPatch dst\uff09<\/strong><\/span>&#8220;\u53ef\u5c06<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u672c\u5730\u6587\u4ef6<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u4e0a\u4f20<\/span><\/strong>\u5230<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">HDFS<\/strong><\/span>\u7684\u5236\u5b9a\u4f4d\u7f6e\u4e0a\uff0c\u5176\u4e2d<\/span>src\u548cdst\u5747\u4e3a\u6587\u4ef6\u7684\u5b8c\u6574\u8def\u5f84\u3002\u5177\u4f53\u4e8b\u4f8b\u5982\u4e0b\uff1a\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<blockquote style=\"margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:25px;padding-top:10px;padding-right:60px;padding-bottom:5px;padding-left:60px;background-image:none;background-attachment:initial;background-origin:initial;background-clip:initial;background-color:initial;border-top-width:2px;border-right-width:2px;border-bottom-width:2px;border-left-width:2px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:#EFEFEF;border-right-color:#EFEFEF;border-bottom-color:#EFEFEF;border-left-color:#EFEFEF;color:#333333;min-height:35px;line-height:1.6em;background-position:initial initial;background-repeat:initial initial;\">\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">package<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;com.hebut.file;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.conf.Configuration;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileStatus;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileSystem;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.Path;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">class<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;CopyFile {<\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">static<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">void<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;main(String[] args)&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">throws<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Exception {<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Configuration conf=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Configuration();<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileSystem hdfs=FileSystem.<em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">get<\/em>(conf);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\/\/<\/span><\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u672c\u5730\u6587\u4ef6<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Path src =<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Path(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;D:\\\\HebutWinOS&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">);<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\/\/HDFS<\/span><\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u4e3a\u6b62<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Path dst =<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Path(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;\/&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">);<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hdfs.copyFromLocalFile(src, dst);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; System.<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">out<\/em><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">.println(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;Upload to&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">+conf.get(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;fs.default.name&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">));<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileStatus files[]=hdfs.listStatus(dst);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">for<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">(FileStatus file:files){<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; System.<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">out<\/em><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">.println(file.getPath());<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp; }<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">}<\/span><\/span>\n\t<\/p>\n<\/blockquote>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u8fd0\u884c\u7ed3\u679c\u53ef\u4ee5\u901a\u8fc7\u63a7\u5236\u53f0\u3001\u9879\u76ee\u6d4f\u89c8\u5668\u548cSecureCRT\u67e5\u770b\uff0c\u5982\u56fe6-1-1\u3001\u56fe6-1-2\u3001\u56fe6-1-3\u6240\u793a\u3002\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 1\uff09\u63a7\u5236\u53f0\u7ed3\u679c<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/53a3bd388f59ae2ce29c7f13883433ce20141230091319.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-1-1 \u8fd0\u884c\u7ed3\u679c\uff081\uff09\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 2\uff09\u9879\u76ee\u6d4f\u89c8\u5668<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/12d58146828bfd9a9f4e81090cbc88d720141230091320.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-1-2 \u8fd0\u884c\u7ed3\u679c\uff082\uff09\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 3\uff09SecureCRT\u7ed3\u679c<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/580a18ace10f12fb264f6cfbb87d986420141230091320.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-1-3 \u8fd0\u884c\u7ed3\u679c\uff083\uff09\n<\/p>\n<h3 style=\"margin-top:15px;margin-right:auto;margin-bottom:2px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;font-size:14px;font-weight:bold;\"><span class=\"ez-toc-section\" id=\"62_%E5%88%9B%E5%BB%BAHDFS%E6%96%87%E4%BB%B6\"><\/span>\n\t6.2 \u521b\u5efaHDFS\u6587\u4ef6<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u901a\u8fc7&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">FileSystem.create\uff08Path f\uff09<\/strong><\/span>&#8220;\u53ef\u5728HDFS\u4e0a\u521b\u5efa\u6587\u4ef6\uff0c\u5176\u4e2df\u4e3a\u6587\u4ef6\u7684\u5b8c\u6574\u8def\u5f84\u3002\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\uff1a\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<blockquote style=\"margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:25px;padding-top:10px;padding-right:60px;padding-bottom:5px;padding-left:60px;background-image:none;background-attachment:initial;background-origin:initial;background-clip:initial;background-color:initial;border-top-width:2px;border-right-width:2px;border-bottom-width:2px;border-left-width:2px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:#EFEFEF;border-right-color:#EFEFEF;border-bottom-color:#EFEFEF;border-left-color:#EFEFEF;color:#333333;min-height:35px;line-height:1.6em;background-position:initial initial;background-repeat:initial initial;\">\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">package<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;com.hebut.file;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.conf.Configuration;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FSDataOutputStream;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileSystem;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.Path;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">class<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;CreateFile {<\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">static<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">void<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;main(String[] args)&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">throws<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Exception {<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Configuration conf=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Configuration();<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileSystem hdfs=FileSystem.<em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">get<\/em>(conf);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">byte<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">[] buff=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;hello hadoop world!\\n&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">.getBytes();<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Path dfs=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Path(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;\/test&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">);<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FSDataOutputStream outputStream=hdfs.create(dfs);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; outputStream.write(buff,0,buff.<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">length<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">);<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp; }<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">}<\/span><\/span>\n\t<\/p>\n<\/blockquote>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u8fd0\u884c\u7ed3\u679c\u5982\u56fe6-2-1\u548c\u56fe6-2-2\u6240\u793a\u3002\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 1\uff09\u9879\u76ee\u6d4f\u89c8\u5668<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/8be7dc255dba4446f13eb0932637987e20141230091321.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-2-1 \u8fd0\u884c\u7ed3\u679c\uff081\uff09\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 2\uff09SecureCRT\u7ed3\u679c<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/9e7114e2ffc55420f5cf701c60053c3a20141230091321.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-2-2 \u8fd0\u884c\u7ed3\u679c\uff082\uff09\n<\/p>\n<h3 style=\"margin-top:15px;margin-right:auto;margin-bottom:2px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;font-size:14px;font-weight:bold;\"><span class=\"ez-toc-section\" id=\"63_%E5%88%9B%E5%BB%BAHDFS%E7%9B%AE%E5%BD%95\"><\/span>\n\t6.3 \u521b\u5efaHDFS\u76ee\u5f55<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u901a\u8fc7&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">FileSystem.mkdirs\uff08Path f\uff09<\/strong><\/span>&#8220;\u53ef\u5728HDFS\u4e0a\u521b\u5efa\u6587\u4ef6\u5939\uff0c\u5176\u4e2df\u4e3a\u6587\u4ef6\u5939\u7684\u5b8c\u6574\u8def\u5f84\u3002\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\uff1a\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<blockquote style=\"margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:25px;padding-top:10px;padding-right:60px;padding-bottom:5px;padding-left:60px;background-image:none;background-attachment:initial;background-origin:initial;background-clip:initial;background-color:initial;border-top-width:2px;border-right-width:2px;border-bottom-width:2px;border-left-width:2px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:#EFEFEF;border-right-color:#EFEFEF;border-bottom-color:#EFEFEF;border-left-color:#EFEFEF;color:#333333;min-height:35px;line-height:1.6em;background-position:initial initial;background-repeat:initial initial;\">\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">package<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;com.hebut.dir;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.conf.Configuration;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileSystem;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.Path;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">class<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;CreateDir {<\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">static<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">void<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;main(String[] args)&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">throws<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Exception{<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Configuration conf=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Configuration();<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileSystem hdfs=FileSystem.<em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">get<\/em>(conf);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Path dfs=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Path(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;\/TestDir&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">);<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hdfs.mkdirs(dfs);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp; }<\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">}<\/span><\/span>\n\t<\/p>\n<\/blockquote>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u8fd0\u884c\u7ed3\u679c\u5982\u56fe6-3-1\u548c\u56fe6-3-2\u6240\u793a\u3002\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 1\uff09\u9879\u76ee\u6d4f\u89c8\u5668<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/46ee22aab104fea97e17f58c4dbc70e420141230091322.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-3-1 \u8fd0\u884c\u7ed3\u679c\uff081\uff09\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 2\uff09SecureCRT\u7ed3\u679c<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/14f6569fefb5006d985cfd7cc2cf307720141230091322.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-3-2 \u8fd0\u884c\u7ed3\u679c\uff082\uff09\n<\/p>\n<h3 style=\"margin-top:15px;margin-right:auto;margin-bottom:2px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;font-size:14px;font-weight:bold;\"><span class=\"ez-toc-section\" id=\"64_%E9%87%8D%E5%91%BD%E5%90%8DHDFS%E6%96%87%E4%BB%B6\"><\/span>\n\t6.4 \u91cd\u547d\u540dHDFS\u6587\u4ef6<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u901a\u8fc7&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">FileSystem.rename\uff08Path src\uff0cPath dst\uff09<\/strong><\/span>&#8220;\u53ef\u4e3a\u6307\u5b9a\u7684HDFS\u6587\u4ef6\u91cd\u547d\u540d\uff0c\u5176\u4e2dsrc\u548cdst\u5747\u4e3a\u6587\u4ef6\u7684\u5b8c\u6574\u8def\u5f84\u3002\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\uff1a\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<blockquote style=\"margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:25px;padding-top:10px;padding-right:60px;padding-bottom:5px;padding-left:60px;background-image:none;background-attachment:initial;background-origin:initial;background-clip:initial;background-color:initial;border-top-width:2px;border-right-width:2px;border-bottom-width:2px;border-left-width:2px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:#EFEFEF;border-right-color:#EFEFEF;border-bottom-color:#EFEFEF;border-left-color:#EFEFEF;color:#333333;min-height:35px;line-height:1.6em;background-position:initial initial;background-repeat:initial initial;\">\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">package<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;com.hebut.file;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.conf.Configuration;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileSystem;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.Path;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">class<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">Rename<\/span>{<\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">static<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">void<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;main(String[] args)&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">throws<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Exception {<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Configuration conf=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Configuration();<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileSystem hdfs=FileSystem.<em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">get<\/em>(conf);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Path frpaht=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Path(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;\/test&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">);&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\/\/<\/span><\/span><\/span><\/span><\/span><\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u65e7\u7684\u6587\u4ef6\u540d<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Path topath=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Path(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;\/test1&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">);&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\/\/<\/span><\/span><\/span><\/span><\/span><\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u65b0\u7684\u6587\u4ef6\u540d<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">boolean<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;isRename=hdfs.rename(frpaht, topath);<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; String result=isRename?<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;<\/span><\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u6210\u529f<\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">:<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;<\/span><\/span><\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u5931\u8d25<\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">;<\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; System.<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">out<\/em><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">.println(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;<\/span><\/span><\/span><\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u6587\u4ef6\u91cd\u547d\u540d\u7ed3\u679c\u4e3a\uff1a<\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">+result);<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp; }<\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">}<\/span><\/span>\n\t<\/p>\n<\/blockquote>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u8fd0\u884c\u7ed3\u679c\u5982\u56fe6-4-1\u548c\u56fe6-4-2\u6240\u793a\u3002\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 1\uff09\u9879\u76ee\u6d4f\u89c8\u5668<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/af25658e91287c341c234c62255f3bfe20141230091323.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-4-1 \u8fd0\u884c\u7ed3\u679c\uff081\uff09\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">2\uff09SecureCRT\u7ed3\u679c<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/5fd90155d55b778ea29b227af7f0c27320141230091323.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-4-2 \u8fd0\u884c\u7ed3\u679c\uff082\uff09\n<\/p>\n<h3 style=\"margin-top:15px;margin-right:auto;margin-bottom:2px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;font-size:14px;font-weight:bold;\"><span class=\"ez-toc-section\" id=\"65_%E5%88%A0%E9%99%A4HDFS%E4%B8%8A%E7%9A%84%E6%96%87%E4%BB%B6\"><\/span>\n\t6.5 \u5220\u9664HDFS\u4e0a\u7684\u6587\u4ef6<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u901a\u8fc7&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">FileSystem.delete\uff08Path f\uff0cBoolean recursive\uff09<\/strong><\/span>&#8220;\u53ef\u5220\u9664\u6307\u5b9a\u7684HDFS\u6587\u4ef6\uff0c\u5176\u4e2df\u4e3a\u9700\u8981\u5220\u9664\u6587\u4ef6\u7684\u5b8c\u6574\u8def\u5f84\uff0crecuresive\u7528\u6765\u786e\u5b9a\u662f\u5426\u8fdb\u884c\u9012\u5f52\u5220\u9664\u3002\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\uff1a\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<blockquote style=\"margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:25px;padding-top:10px;padding-right:60px;padding-bottom:5px;padding-left:60px;background-image:none;background-attachment:initial;background-origin:initial;background-clip:initial;background-color:initial;border-top-width:2px;border-right-width:2px;border-bottom-width:2px;border-left-width:2px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:#EFEFEF;border-right-color:#EFEFEF;border-bottom-color:#EFEFEF;border-left-color:#EFEFEF;color:#333333;min-height:35px;line-height:1.6em;background-position:initial initial;background-repeat:initial initial;\">\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">package<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;com.hebut.file;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.conf.Configuration;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileSystem;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.Path;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">class<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;DeleteFile {<\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">static<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">void<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;main(String[] args)&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">throws<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Exception {<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Configuration conf=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Configuration();<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileSystem hdfs=FileSystem.<em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">get<\/em>(conf);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Path delef=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Path(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;\/test1&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">);<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">boolean<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;isDeleted=hdfs.delete(delef,<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">false<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">);<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\/\/<\/span><\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u9012\u5f52\u5220\u9664<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\/\/boolean isDeleted=hdfs.delete(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">delef<\/span>,true);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; System.<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">out<\/em><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">.println(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;Delete?&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">+isDeleted);<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp; }<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">}<\/span><\/span>\n\t<\/p>\n<\/blockquote>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u8fd0\u884c\u7ed3\u679c\u5982\u56fe6-5-1\u548c\u56fe6-5-2\u6240\u793a\u3002\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 1\uff09\u63a7\u5236\u53f0\u7ed3\u679c<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/eff0507ebe62568b69a8c0e5f0b6f5e320141230091323.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-5-1 \u8fd0\u884c\u7ed3\u679c\uff081\uff09\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">2\uff09\u9879\u76ee\u6d4f\u89c8\u5668<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/ae0e08cf26fb2a0f9737845ee6a5794620141230091324.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-5-2 \u8fd0\u884c\u7ed3\u679c\uff082\uff09\n<\/p>\n<h3 style=\"margin-top:15px;margin-right:auto;margin-bottom:2px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;font-size:14px;font-weight:bold;\"><span class=\"ez-toc-section\" id=\"66_%E5%88%A0%E9%99%A4HDFS%E4%B8%8A%E7%9A%84%E7%9B%AE%E5%BD%95\"><\/span>\n\t6.6 \u5220\u9664HDFS\u4e0a\u7684\u76ee\u5f55<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u540c<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u5220\u9664\u6587\u4ef6<\/strong><\/span>\u4ee3\u7801<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u4e00\u6837<\/strong><\/span>\uff0c\u53ea\u662f\u6362\u6210\u5220\u9664\u76ee\u5f55\u8def\u5f84\u5373\u53ef\uff0c\u5982\u679c\u76ee\u5f55\u4e0b\u6709\u6587\u4ef6\uff0c\u8981\u8fdb\u884c\u9012\u5f52\u5220\u9664\u3002\n<\/p>\n<h3 style=\"margin-top:15px;margin-right:auto;margin-bottom:2px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;font-size:14px;font-weight:bold;\"><span class=\"ez-toc-section\" id=\"67_%E6%9F%A5%E7%9C%8B%E6%9F%90%E4%B8%AAHDFS%E6%96%87%E4%BB%B6%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8\"><\/span>\n\t6.7 \u67e5\u770b\u67d0\u4e2aHDFS\u6587\u4ef6\u662f\u5426\u5b58\u5728<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u901a\u8fc7&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">FileSystem.exists\uff08Path f\uff09<\/strong><\/span>&#8220;\u53ef\u67e5\u770b\u6307\u5b9aHDFS\u6587\u4ef6\u662f\u5426\u5b58\u5728\uff0c\u5176\u4e2df\u4e3a\u6587\u4ef6\u7684\u5b8c\u6574\u8def\u5f84\u3002\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\uff1a\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<blockquote style=\"margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:25px;padding-top:10px;padding-right:60px;padding-bottom:5px;padding-left:60px;background-image:none;background-attachment:initial;background-origin:initial;background-clip:initial;background-color:initial;border-top-width:2px;border-right-width:2px;border-bottom-width:2px;border-left-width:2px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:#EFEFEF;border-right-color:#EFEFEF;border-bottom-color:#EFEFEF;border-left-color:#EFEFEF;color:#333333;min-height:35px;line-height:1.6em;background-position:initial initial;background-repeat:initial initial;\">\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">package<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;com.hebut.file;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.conf.Configuration;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileSystem;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.Path;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">class<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;CheckFile {<\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">static<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">void<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;main(String[] args)&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">throws<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Exception {<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Configuration conf=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Configuration();<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileSystem hdfs=FileSystem.<em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">get<\/em>(conf);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Path findf=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Path(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;\/test1&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">);<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">boolean<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;isExists=hdfs.exists(findf);<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; System.<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">out<\/em><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">.println(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;Exist?&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">+isExists);<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp; }<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">}<\/span><\/span>\n\t<\/p>\n<\/blockquote>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u8fd0\u884c\u7ed3\u679c\u5982\u56fe6-7-1\u548c\u56fe6-7-2\u6240\u793a\u3002\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 1\uff09\u63a7\u5236\u53f0\u7ed3\u679c<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/7d5009669afbe30940833843b2a071ae20141230091324.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-7-1 \u8fd0\u884c\u7ed3\u679c\uff081\uff09\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 2\uff09\u9879\u76ee\u6d4f\u89c8\u5668<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/3aec2eea133a2d6263f44eb0b30e494c20141230091324.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-7-2 \u8fd0\u884c\u7ed3\u679c\uff082\uff09\n<\/p>\n<h3 style=\"margin-top:15px;margin-right:auto;margin-bottom:2px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;font-size:14px;font-weight:bold;\"><span class=\"ez-toc-section\" id=\"68_%E6%9F%A5%E7%9C%8BHDFS%E6%96%87%E4%BB%B6%E7%9A%84%E6%9C%80%E5%90%8E%E4%BF%AE%E6%94%B9%E6%97%B6%E9%97%B4\"><\/span>\n\t6.8 \u67e5\u770bHDFS\u6587\u4ef6\u7684\u6700\u540e\u4fee\u6539\u65f6\u95f4<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u901a\u8fc7&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">FileSystem.getModificationTime()<\/strong><\/span>&#8220;\u53ef\u67e5\u770b\u6307\u5b9aHDFS\u6587\u4ef6\u7684\u4fee\u6539\u65f6\u95f4\u3002\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\uff1a\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<blockquote style=\"margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:25px;padding-top:10px;padding-right:60px;padding-bottom:5px;padding-left:60px;background-image:none;background-attachment:initial;background-origin:initial;background-clip:initial;background-color:initial;border-top-width:2px;border-right-width:2px;border-bottom-width:2px;border-left-width:2px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:#EFEFEF;border-right-color:#EFEFEF;border-bottom-color:#EFEFEF;border-left-color:#EFEFEF;color:#333333;min-height:35px;line-height:1.6em;background-position:initial initial;background-repeat:initial initial;\">\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">package<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;com.hebut.file;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.conf.Configuration;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileStatus;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileSystem;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.Path;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">class<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;GetLTime {<\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">static<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">void<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;main(String[] args)&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">throws<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Exception {<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Configuration conf=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Configuration();<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileSystem hdfs=FileSystem.<em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">get<\/em>(conf);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Path fpath =<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Path(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;\/user\/hadoop\/test\/file1.txt&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">);<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileStatus fileStatus=hdfs.getFileStatus(fpath);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">long<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;modiTime=fileStatus.getModificationTime();<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; System.<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">out<\/em><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">.println(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;file1.txt<\/span><\/span><\/span><\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u7684\u4fee\u6539\u65f6\u95f4\u662f<\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">+modiTime);<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp; }<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">}<\/span><\/span>\n\t<\/p>\n<\/blockquote>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u8fd0\u884c\u7ed3\u679c\u5982\u56fe6-8-1\u6240\u793a\u3002\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/daaf7693e9b2fb43885838b029beca9e20141230091325.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-8-1 \u63a7\u5236\u53f0\u7ed3\u679c\n<\/p>\n<h3 style=\"margin-top:15px;margin-right:auto;margin-bottom:2px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;font-size:14px;font-weight:bold;\"><span class=\"ez-toc-section\" id=\"69_%E8%AF%BB%E5%8F%96HDFS%E6%9F%90%E4%B8%AA%E7%9B%AE%E5%BD%95%E4%B8%8B%E7%9A%84%E6%89%80%E6%9C%89%E6%96%87%E4%BB%B6\"><\/span>\n\t6.9 \u8bfb\u53d6HDFS\u67d0\u4e2a\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u901a\u8fc7&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">FileStatus.getPath\uff08\uff09<\/strong><\/span>&#8220;\u53ef\u67e5\u770b\u6307\u5b9aHDFS\u4e2d\u67d0\u4e2a\u76ee\u5f55\u4e0b\u6240\u6709\u6587\u4ef6\u3002\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\uff1a\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<blockquote style=\"margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:25px;padding-top:10px;padding-right:60px;padding-bottom:5px;padding-left:60px;background-image:none;background-attachment:initial;background-origin:initial;background-clip:initial;background-color:initial;border-top-width:2px;border-right-width:2px;border-bottom-width:2px;border-left-width:2px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:#EFEFEF;border-right-color:#EFEFEF;border-bottom-color:#EFEFEF;border-left-color:#EFEFEF;color:#333333;min-height:35px;line-height:1.6em;background-position:initial initial;background-repeat:initial initial;\">\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">package<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;com.hebut.file;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.conf.Configuration;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileStatus;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileSystem;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.Path;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">class<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;ListAllFile {<\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">static<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">void<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;main(String[] args)&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">throws<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Exception {<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Configuration conf=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">Configuration<\/span>();<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileSystem hdfs=FileSystem.<em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">get<\/em>(conf);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Path listf =<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Path(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;\/user\/hadoop\/test&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">);<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileStatus stats[]=hdfs.listStatus(listf);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">for<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">int<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;i = 0; i &lt; stats.<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">length<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">; ++i)<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> {<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> System.<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">out<\/em><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">.println(stats[i].getPath().toString());<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> }<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hdfs.close();<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp; }<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">}<\/span><\/span>\n\t<\/p>\n<\/blockquote>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u8fd0\u884c\u7ed3\u679c\u5982\u56fe6-9-1\u548c\u56fe6-9-2\u6240\u793a\u3002\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 1\uff09\u63a7\u5236\u53f0\u7ed3\u679c<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/61555b3640003d21ed8a59576260d26720141230091325.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-9-1 \u8fd0\u884c\u7ed3\u679c\uff081\uff09\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 2\uff09\u9879\u76ee\u6d4f\u89c8\u5668<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/46f9f03a210fdb01de1af3fbb53a9f7820141230091325.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-9-2 \u8fd0\u884c\u7ed3\u679c\uff082\uff09\n<\/p>\n<h3 style=\"margin-top:15px;margin-right:auto;margin-bottom:2px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;font-size:14px;font-weight:bold;\"><span class=\"ez-toc-section\" id=\"610_%E6%9F%A5%E6%89%BE%E6%9F%90%E4%B8%AA%E6%96%87%E4%BB%B6%E5%9C%A8HDFS%E9%9B%86%E7%BE%A4%E7%9A%84%E4%BD%8D%E7%BD%AE\"><\/span>\n\t6.10 \u67e5\u627e\u67d0\u4e2a\u6587\u4ef6\u5728HDFS\u96c6\u7fa4\u7684\u4f4d\u7f6e<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u901a\u8fc7&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">FileSystem.getFileBlockLocation\uff08FileStatus file\uff0clong start\uff0clong len\uff09<\/strong><\/span>&#8220;\u53ef\u67e5\u627e\u6307\u5b9a\u6587\u4ef6\u5728HDFS\u96c6\u7fa4\u4e0a\u7684\u4f4d\u7f6e\uff0c\u5176\u4e2dfile\u4e3a\u6587\u4ef6\u7684\u5b8c\u6574\u8def\u5f84\uff0cstart\u548clen\u6765\u6807\u8bc6\u67e5\u627e\u6587\u4ef6\u7684\u8def\u5f84\u3002\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\uff1a\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<blockquote style=\"margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:25px;padding-top:10px;padding-right:60px;padding-bottom:5px;padding-left:60px;background-image:none;background-attachment:initial;background-origin:initial;background-clip:initial;background-color:initial;border-top-width:2px;border-right-width:2px;border-bottom-width:2px;border-left-width:2px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:#EFEFEF;border-right-color:#EFEFEF;border-bottom-color:#EFEFEF;border-left-color:#EFEFEF;color:#333333;min-height:35px;line-height:1.6em;background-position:initial initial;background-repeat:initial initial;\">\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">package<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;com.hebut.file;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.conf.Configuration;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.BlockLocation;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileStatus;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileSystem;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.Path;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">class<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;FileLoc {<\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">static<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">void<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;main(String[] args)&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">throws<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Exception {<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Configuration conf=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Configuration();<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileSystem hdfs=FileSystem.<em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">get<\/em>(conf);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Path fpath=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Path(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;\/user\/hadoop\/cygwin&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">);<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileStatus filestatus = hdfs.getFileStatus(fpath);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BlockLocation[] blkLocations = hdfs.getFileBlockLocations(<\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">filestatus, 0, filestatus.getLen());<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">int<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;blockLen = blkLocations.<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">length<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">;<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">for<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">int<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;i=0;i&lt;blockLen;i++){<\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; String[] hosts = blkLocations[i].getHosts();<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; System.<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">out<\/em><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">.println(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;block_&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">+i+<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;_location:&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">+hosts[0]);<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp; }<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">}<\/span><\/span>\n\t<\/p>\n<\/blockquote>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u8fd0\u884c\u7ed3\u679c\u5982\u56fe6-10-1\u548c6.10.2\u6240\u793a\u3002\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 1\uff09\u63a7\u5236\u53f0\u7ed3\u679c<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/c48b4b56fa6cdded3caa69fd7bb8b7e620141230091325.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-10-1 \u8fd0\u884c\u7ed3\u679c\uff081\uff09\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"> 2\uff09\u9879\u76ee\u6d4f\u89c8\u5668<\/strong><\/span>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/b5768635055b727bf73f2b9eecce901e20141230091326.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-10-2 \u8fd0\u884c\u7ed3\u679c\uff082\uff09\n<\/p>\n<h3 style=\"margin-top:15px;margin-right:auto;margin-bottom:2px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;font-size:14px;font-weight:bold;\"><span class=\"ez-toc-section\" id=\"611_%E8%8E%B7%E5%8F%96HDFS%E9%9B%86%E7%BE%A4%E4%B8%8A%E6%89%80%E6%9C%89%E8%8A%82%E7%82%B9%E5%90%8D%E7%A7%B0%E4%BF%A1%E6%81%AF\"><\/span>\n\t6.11 \u83b7\u53d6HDFS\u96c6\u7fa4\u4e0a\u6240\u6709\u8282\u70b9\u540d\u79f0\u4fe1\u606f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u901a\u8fc7&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">DatanodeInfo.getHostName\uff08\uff09<\/strong><\/span>&#8220;\u53ef\u83b7\u53d6HDFS\u96c6\u7fa4\u4e0a\u7684\u6240\u6709\u8282\u70b9\u540d\u79f0\u3002\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\uff1a\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<blockquote style=\"margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:25px;padding-top:10px;padding-right:60px;padding-bottom:5px;padding-left:60px;background-image:none;background-attachment:initial;background-origin:initial;background-clip:initial;background-color:initial;border-top-width:2px;border-right-width:2px;border-bottom-width:2px;border-left-width:2px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:#EFEFEF;border-right-color:#EFEFEF;border-bottom-color:#EFEFEF;border-left-color:#EFEFEF;color:#333333;min-height:35px;line-height:1.6em;background-position:initial initial;background-repeat:initial initial;\">\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">package<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;com.hebut.file;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.conf.Configuration;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.fs.FileSystem;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.hdfs.DistributedFileSystem;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">import<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;org.apache.hadoop.hdfs.protocol.DatanodeInfo;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">class<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;GetList {<\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t&nbsp;\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">public<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">static<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">void<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;main(String[] args)&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">throws<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Exception {<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Configuration conf=<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">new<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;Configuration();<\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FileSystem fs=FileSystem.<em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">get<\/em>(conf);<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DistributedFileSystem hdfs = (DistributedFileSystem)fs;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DatanodeInfo[] dataNodeStats = hdfs.getDataNodeStats();<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">for<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">int<\/strong><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;i=0;i&lt;dataNodeStats.<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">length<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">;i++){<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; System.<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><em style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">out<\/em><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">.println(<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;DataNode_&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">+i+<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&#8220;_Name:&#8221;<\/span><\/span><\/span><\/span><\/span><\/span><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">+dataNodeStats[i].getHostName());<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">&nbsp;&nbsp;&nbsp; }<\/span><\/span>\n\t<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\t<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">}<\/span><\/span>\n\t<\/p>\n<\/blockquote>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u8fd0\u884c\u7ed3\u679c\u5982\u56fe6-11-1\u6240\u793a\u3002\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t<img decoding=\"async\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201412\/93553892c02b59a15411e216f2b0adfb20141230091326.png\" alt=\"\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;\" \/>\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\u56fe6-11-1 \u63a7\u5236\u53f0\u7ed3\u679c\n<\/p>\n<p><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p><span style=\"color:#403226;font-family:verdana, 'ms song', \u5b8b\u4f53, Arial, \u5fae\u8f6f\u96c5\u9ed1, Helvetica, sans-serif;font-size:12px;line-height:24px;\"><\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\tHadoop\u4e2d\u5173\u4e8e\u6587\u4ef6\u64cd\u4f5c\u7c7b\u57fa\u672c\u4e0a\u5168\u90e8\u662f\u5728&#8221;<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">org.apache.hadoop.fs<\/strong><\/span>&#8220;\u5305\u4e2d\uff0c\u8fd9\u4e9bAPI\u80fd\u591f\u652f\u6301\u7684\u64cd\u4f5c\u5305\u542b\uff1a\u6253\u5f00\u6587\u4ef6\uff0c\u8bfb\u5199\u6587\u4ef6\uff0c\u5220\u9664\u6587\u4ef6\u7b49\u3002\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\tHadoop\u7c7b\u5e93\u4e2d\u6700\u7ec8\u9762\u5411\u7528\u6237\u63d0\u4f9b\u7684<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u63a5\u53e3\u7c7b<\/strong><\/span>\u662f<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">FileSystem<\/strong><\/span>\uff0c\u8be5\u7c7b\u662f\u4e2a<span style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\"><strong style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;\">\u62bd\u8c61\u7c7b<\/strong><\/span>\uff0c\u53ea\u80fd\u901a\u8fc7\u6765\u7c7b\u7684get\u65b9\u6cd5\u5f97\u5230\u5177\u4f53\u7c7b\u3002get\u65b9\u6cd5\u5b58\u5728\u51e0\u4e2a\u91cd\u8f7d\u7248\u672c\uff0c\u5e38\u7528\u7684\u662f\u8fd9\u4e2a\uff1a\n<\/p>\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t&nbsp;\n<\/p>\n<blockquote style=\"margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:25px;padding-top:10px;padding-right:60px;padding-bottom:5px;padding-left:60px;background-image:none;background-attachment:initial;background-origin:initial;background-clip:initial;background-color:initial;border-top-width:2px;border-right-width:2px;border-bottom-width:2px;border-left-width:2px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:#EFEFEF;border-right-color:#EFEFEF;border-bottom-color:#EFEFEF;border-left-color:#EFEFEF;color:#333333;min-height:35px;line-height:1.6em;background-position:initial initial;background-repeat:initial initial;\">\n<p style=\"margin-top:5px;margin-right:auto;margin-bottom:5px;margin-left:auto;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;text-indent:0px;font-size:14px;\">\n\t\tstatic FileSystem get(C&#8230;\n\t<\/p>\n<\/blockquote>\n<p><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[330],"tags":[],"class_list":["post-114","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v16.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[\u8f6c]HDFS API\u8be6\u89e3 - Wayne&#039;s Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/weizn.net\/?p=114\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[\u8f6c]HDFS API\u8be6\u89e3 - Wayne&#039;s Blog\" \/>\n<meta property=\"og:description\" content=\"Hadoop\u4e2d\u5173\u4e8e\u6587\u4ef6\u64cd\u4f5c\u7c7b\u57fa\u672c\u4e0a\u5168\u90e8\u662f\u5728&quot;org.apache.hadoop.fs&quot;\u5305\u4e2d\uff0c\u8fd9\u4e9bAPI\u80fd\u591f\u652f\u6301\u7684\u64cd\u4f5c\u5305\u542b\uff1a\u6253\u5f00\u6587\u4ef6\uff0c\u8bfb\u5199\u6587\u4ef6\uff0c\u5220\u9664\u6587\u4ef6\u7b49\u3002    Hadoop\u7c7b\u5e93\u4e2d\u6700\u7ec8\u9762\u5411\u7528\u6237\u63d0\u4f9b\u7684\u63a5\u53e3\u7c7b\u662fFileSystem\uff0c\u8be5\u7c7b\u662f\u4e2a\u62bd\u8c61\u7c7b\uff0c\u53ea\u80fd\u901a\u8fc7\u6765\u7c7b\u7684get\u65b9\u6cd5\u5f97\u5230\u5177\u4f53\u7c7b\u3002get\u65b9\u6cd5\u5b58\u5728\u51e0\u4e2a\u91cd\u8f7d\u7248\u672c\uff0c\u5e38\u7528\u7684\u662f\u8fd9\u4e2a\uff1a    &nbsp;      static FileSystem get(C...\" \/>\n<meta property=\"og:url\" content=\"http:\/\/weizn.net\/?p=114\" \/>\n<meta property=\"og:site_name\" content=\"Wayne&#039;s Blog\" \/>\n<meta property=\"article:published_time\" content=\"2014-12-30T09:10:11+00:00\" \/>\n<meta property=\"og:image\" 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