{"id":31233,"date":"2023-01-04T08:59:02","date_gmt":"2023-09-07T04:10:46","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8java-nio-path%e5%92%8cjava-nio-files%e9%87%8d%e6%96%b0%e7%bc%96%e5%86%99java-io-file%e7%9a%84%e4%bb%a3%e7%a0%81%e3%80%82\/"},"modified":"2025-08-12T22:58:55","modified_gmt":"2025-08-12T14:58:55","slug":"%e4%bd%bf%e7%94%a8java-nio-path%e5%92%8cjava-nio-files%e9%87%8d%e6%96%b0%e7%bc%96%e5%86%99java-io-file%e7%9a%84%e4%bb%a3%e7%a0%81%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8java-nio-path%e5%92%8cjava-nio-files%e9%87%8d%e6%96%b0%e7%bc%96%e5%86%99java-io-file%e7%9a%84%e4%bb%a3%e7%a0%81%e3%80%82\/","title":{"rendered":"\u4f7f\u7528java.nio.Path\u548cjava.nio.Files\u91cd\u65b0\u7f16\u5199java.io.File\u7684\u4ee3\u7801"},"content":{"rendered":"<h1>\u7b80\u8981\u6982\u8ff0\u9274\u4e8e\u4e4b\u524d\u7684\u4ee3\u7801\u4e2d\u6211\u4f7f\u7528\u4e86java.io.File\uff0c\u56e0\u4e3a\u51b2\u52a8\u4f7f\u7528\u4e86Path\u548cFiles\u8fdb\u884c\u4e86\u66ff\u6362\uff0c\u6240\u4ee5\u5728\u66f4\u6539\u73b0\u6709\u4ee3\u7801\u7684\u89d2\u5ea6\u6765\u4ecb\u7ecd\u3002\u5bf9\u4e8e\u5df2\u7ecf\u719f\u7ec3\u638c\u63e1NIO2\u7684\u4eba\u6765\u8bf4\uff0c\u6211\u8ba4\u4e3a\u9605\u8bfb\u8fd9\u7bc7\u6587\u7ae0\u4e0d\u4f1a\u6709\u4efb\u4f55\u53d1\u73b0\u3002<\/p>\n<p>\u987a\u4fbf\u8bf4\u4e00\u4e0b\uff0c\u636e\u8bf4\u81eaJDK7\u8d77\uff0c\u65b0\u7684\u6587\u4ef6\u76f8\u5173API\u88ab\u79f0\u4e3aNIO2\uff08\u65b0I\/O 2\uff09\uff0c\u800c\u65e0\u6807\u8bb0\u7684\u5219\u6307\u7684\u662f1.4\u65f6\u4ee3\u6dfb\u52a0\u7684\u901a\u9053\uff08Channel\uff09\u548c\u5b57\u7b26\u96c6\uff08Charset\uff09\u3002<\/p>\n<h2>\u80cc\u666f\u8d44\u6599\u5728File\u7c7b\u4e2d\u6709\u4ee5\u4e0b\u4e24\u4e2a\u529f\u80fd\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30d5\u30a1\u30a4\u30eb\u306e\u7f6e\u304d\u5834\u6240\u3092\u5b9a\u7fa9\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30d5\u30a1\u30a4\u30eb\u3092\u64cd\u4f5c\u3059\u308b<\/ul>\n<p>\u636e\u8bf4\u5728JDK7\u7684NIO2\u4e2d\uff0c\u5c06\u5176\u5206\u5272\u4e3a\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30d5\u30a1\u30a4\u30eb\u306e\u7f6e\u304d\u5834\u6240\u3092\u5b9a\u7fa9\u3059\u308b\u2026\u2026java.nio.file.Path \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30d5\u30a1\u30a4\u30eb\u3092\u64cd\u4f5c\u3059\u308b\u2026\u2026java.nio.file.Files<\/ul>\n<p>\u672a\u6765\u4e2d\uff0c\u6211\u4e0d\u786e\u5b9a File \u7c7b\u662f\u5426\u4f1a\u88ab\u5b8c\u5168\u66ff\u6362\u4e3a Path \u548c Files\u3002\u89c2\u5bdf File \u7c7b\u7684 Javadoc\uff0c\u53ef\u4ee5\u770b\u5230\u5b83\u5728 1.7 \u4e2d\u6dfb\u52a0\u4e86 toPath() \u65b9\u6cd5\uff0c\u800c\u5728 1.8 \u4e2d\u6ca1\u6709\u4efb\u4f55\u65b0\u65b9\u6cd5\u3002\u56e0\u6b64\uff0c\u53ef\u4ee5\u63a8\u6d4b\u672a\u6765\u7684\u6587\u4ef6\u76f8\u5173API\u7684\u5f00\u53d1\u53ef\u80fd\u4f1a\u8f6c\u5411 Files \u548c Path\u3002\u7136\u800c\uff0c\u5728 JDK \u4e2d\u4ecd\u7136\u5b58\u5728\u8bb8\u591a\u5e93\u4ec5\u9650\u4e8e\u5904\u7406 File\uff0c\u800c\u4e0d\u662f Path\u3002\u4f8b\u5982\uff0cJavaFX \u7684 FileChooser \u548c Drag &amp; Drop API \u53ea\u80fd\u5904\u7406 File\uff0c\u5982\u679c\u60f3\u4f7f\u7528 Files \u7c7b\u8fdb\u884c\u64cd\u4f5c\uff0c\u5c31\u5fc5\u987b\u4f7f\u7528 File \u7c7b\u7684 toPath() \u65b9\u6cd5\u5c06\u5176\u8f6c\u6362\u4e3a Path \u5bf9\u8c61\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5f53\u524d\u7684\u4ee3\u7801\u4f7f\u7528\u7684\u662fjava.io.File\uff0c\u5e76\u4e14\u6d4b\u8bd5\u4ee3\u7801\u4e5f\u5341\u5206\u5b8c\u5584\uff0c\u8003\u8651\u5230Java\u7684\u5411\u540e\u517c\u5bb9\u6027\u5386\u53f2\uff0c\u6ca1\u6709\u5fc5\u8981\u5f3a\u884c\u5c06\u5176\u8f6c\u6362\u4e3aPath\u3002\u5982\u679c\u7531\u4e8e\u60c5\u51b5\u8feb\u4f7f\u60a8\u5728JDK6\u6216\u66f4\u65e9\u7684\u73af\u5883\u4e2d\u8fdb\u884c\u5f00\u53d1\uff0c\u90a3\u4e48\u4e5f\u6ca1\u6709\u5fc5\u8981\u8f6c\u6362\u3002\u7136\u800c\uff0c\u7531\u4e8eFiles\u7c7b\u7684\u529f\u80fd\u66f4\u4e3a\u4f18\u79c0\uff0c\u5bf9\u4e8e\u65b0\u5f00\u53d1\u7684\u90e8\u5206\uff0c\u8bd5\u7740\u5c1d\u8bd5\u4f7f\u7528NIO2\u6765\u5199\uff0c\u8fd9\u662f\u4e00\u4e2a\u53ef\u884c\u7684\u9009\u62e9\u3002<\/p>\n<h2>\u8bf7\u7559\u610fNIO2 \u662f\u4ece JDK7 \u5f00\u59cb\u6dfb\u52a0\u7684\u3002\u5c3d\u7ba1\u88ab\u8ba4\u4e3a Android SDK \u4e2d\u7684 JDK7 \u5e93\u57fa\u672c\u9f50\u5168\uff0c\u4f46\u9057\u61be\u7684\u662f\uff0c\u51e0\u4e4e\u6ca1\u6709\u5b9e\u73b0 java.nio \u5305\u4e2d\u7684\u5927\u90e8\u5206\u7c7b\u3002<\/p>\n<p>\u8bf7\u53c2\u9605\u4e0b\u9762\u7684\u6587\u7ae0\u4ee5\u83b7\u53d6\u66f4\u8be6\u7ec6\u7684\u4fe1\u606f\u3002<\/p>\n<ul class=\"post-ul\">Android\u306f\u3069\u306e\u7a0b\u5ea6 Java7\u304b?<\/ul>\n<h2>\u8fd9\u7bc7\u6587\u7ae0\u6ca1\u6709\u63d0\u5230\u7684\u5185\u5bb9\u8fd9\u4e2a\u5e93\u5df2\u7ecf\u95ee\u4e16\u8d85\u8fc75\u5e74\uff0c\u5173\u4e8ePath\u548cFiles\u7684\u8be6\u7ec6\u7528\u6cd5\u4ee5\u53ca\u4eceFile\u8f6c\u6362\u7684\u95ee\u9898\u5df2\u7ecf\u6709\u5f88\u591a\u4f18\u79c0\u7684\u6587\u7ae0\uff0c\u6240\u4ee5\u5728\u672c\u6587\u4e2d\u5c06\u7701\u7565\u4e0e\u6b64\u65e0\u5173\u7684\u90e8\u5206\u3002<\/p>\n<hr \/>\n<h1>\u521b\u5efa\u5bf9\u8c61<\/p>\n<h2>\u5bf9\u4e8e\u6587\u4ef6\u7684\u60c5\u51b5\u6211\u8ba4\u4e3a\uff0c\u901a\u8fc7\u5c06\u6587\u4ef6\u8def\u5f84\u4f5c\u4e3a\u5b57\u7b26\u4e32\uff08\u6216URL\uff09\u4f20\u9012\u7ed9\u6784\u9020\u51fd\u6570\u751f\u6210\u6587\u4ef6\u662f\u4e3b\u8981\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">File<\/span> <span class=\"n\">file<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">File<\/span><span class=\"o\">(<\/span><span class=\"s\">\"dir\/file.txt\"<\/span><span class=\"o\">);<\/span>\r\n<\/code><\/pre>\n<h2>\u5728Path\u7684\u60c5\u51b5\u4e0b\u6709\u4e00\u4e2a\u540d\u4e3aPaths\u7684\u5de5\u5382\uff0c\u53ef\u4ee5\u901a\u8fc7\u5c06\u5b57\u7b26\u4e32\u6216URI\u4f5c\u4e3aget()\u65b9\u6cd5\u7684\u53c2\u6570\u6765\u521b\u5efa\u5bf9\u8c61\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Path<\/span> <span class=\"n\">path<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Paths<\/span><span class=\"o\">.<\/span><span class=\"na\">get<\/span><span class=\"o\">(<\/span><span class=\"s\">\"dir\/file.txt\"<\/span><span class=\"o\">);<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u6587\u4ef6\u548c\u8def\u5f84\u7684\u76f8\u4e92\u8f6c\u6362File\u548cPath\u4e4b\u95f4\u53ef\u4ee5\u76f8\u4e92\u8f6c\u6362\u3002\u5982\u679c\u5e0c\u671b\u5728\u4e0d\u8fd4\u56dePath\u7684\u5e93\u4e2d\u4f7f\u7528NIO\uff0c\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e2a\u65b9\u6cd5\u5c06Path\u5bf9\u8c61\u8f6c\u6362\u4e3aFile\u5bf9\u8c61\uff0c\u5c31\u50cf\u524d\u9762\u63d0\u5230\u7684FileChooser\u4e00\u6837\u3002<\/p>\n<h2>\u6587\u4ef6 -&gt; \u8def\u5f84 -&gt;<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Path<\/span> <span class=\"n\">path<\/span> <span class=\"o\">=<\/span> <span class=\"n\">file<\/span><span class=\"o\">.<\/span><span class=\"na\">toPath<\/span><span class=\"o\">();<\/span>\r\n<\/code><\/pre>\n<h2>\u8def\u5f84 -&gt; \u6587\u4ef6<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">File<\/span> <span class=\"n\">file<\/span> <span class=\"o\">=<\/span> <span class=\"n\">path<\/span><span class=\"o\">.<\/span><span class=\"na\">toFile<\/span><span class=\"o\">();<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u83b7\u53d6\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84<\/p>\n<h2>\u5728\u6587\u4ef6\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528getAbsolutePath\u8fd4\u56de\u7edd\u5bf9\u8def\u5f84\u7684\u5b57\u7b26\u53d8\u91cf\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">file<\/span><span class=\"o\">.<\/span><span class=\"na\">getAbsolutePath<\/span><span class=\"o\">();<\/span>\r\n<\/code><\/pre>\n<h2>\u5173\u4e8eNIO2\u5c06 toAbsolutePath \u65b9\u6cd5\u7528\u4e8e\u5c06\u76f8\u5bf9\u8def\u5f84\u8f6c\u6362\u4e3a\u7edd\u5bf9\u8def\u5f84\u7684 Path \u5bf9\u8c61\uff0c\u7136\u540e\u901a\u8fc7 toString() \u65b9\u6cd5\u5c06\u5176\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">path<\/span><span class=\"o\">.<\/span><span class=\"na\">toAbsolutePath<\/span><span class=\"o\">().<\/span><span class=\"na\">toString<\/span><span class=\"o\">(),<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u786e\u8ba4\u6587\u4ef6\u662f\u5426\u5b58\u5728<\/p>\n<h2>\u5728\u6a94\u6848\u7684\u60c5\u6cc1\u4e0b<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">file<\/span><span class=\"o\">.<\/span><span class=\"na\">exists<\/span><span class=\"o\">();<\/span>\r\n<\/code><\/pre>\n<h2>\u5bf9\u4e8eNIO2\u60c5\u51b5\u6765\u8bf4<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">exists<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">);<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5224\u65ad\u6587\u4ef6\u662f\u5426\u53ef\u8bfb\u53d6<\/p>\n<h2>\u6587\u4ef6\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528File.canRead()\u3002<\/p>\n<p>Note: The given sentence is already in Java code, so there is no literal translation in Chinese. The provided response is the equivalent Chinese expression for using the method File.canRead().<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">file<\/span><span class=\"o\">.<\/span><span class=\"na\">canRead<\/span><span class=\"o\">())<\/span>\r\n<\/code><\/pre>\n<h2>NIO2\u7684\u60c5\u51b5\u4e0b\u3002\u53ef\u4ee5\u4f7f\u7528isReadable\u65b9\u6cd5\u53bb\u5224\u65ad\u6587\u4ef6\u662f\u5426\u53ef\u8bfb\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">isReadable<\/span><span class=\"o\">(<\/span><span class=\"nc\">Path<\/span><span class=\"o\">)<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u521b\u5efa\u6587\u4ef6\u5939<\/p>\n<h2>\u6587\u4ef6\u7684\u60c5\u51b5\u4e0b de \u0261 h\u00f9)\u4f7f\u7528 File.mkdirs \u53ef\u4ee5\u4e00\u8d77\u521b\u5efa\u7236\u6587\u4ef6\u5939\u3002\u5b83\u4ee5\u5e03\u5c14\u503c\u5f62\u5f0f\u8fd4\u56de\u6210\u529f\u4e0e\u5426\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">new<\/span> <span class=\"nc\">File<\/span><span class=\"o\">(<\/span><span class=\"s\">\"dir\"<\/span><span class=\"o\">).<\/span><span class=\"na\">mkdirs<\/span><span class=\"o\">();<\/span>\r\n<\/code><\/pre>\n<h2>\u5bf9\u4e8eNIO2\u7684\u60c5\u51b5\u6765\u8bf4\u4f7f\u7528Files#createDirectories\u65b9\u6cd5\u3002\u7531\u4e8e\u8be5\u65b9\u6cd5\u53ef\u80fd\u4f1a\u629b\u51faIOException\uff0c\u6240\u4ee5\u9700\u8981\u5904\u7406\u5f02\u5e38\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">createDirectories<\/span><span class=\"o\">(<\/span><span class=\"n\">dirPath<\/span><span class=\"o\">);<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5224\u65ad\u6587\u4ef6\u5939\u6216\u6587\u4ef6\u6ca1\u4ec0\u4e48\u592a\u5927\u7684\u53d8\u5316\u3002<\/p>\n<h2>\u5982\u679c\u662f\u6587\u4ef6\u7684\u60c5\u51b5<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">file<\/span><span class=\"o\">.<\/span><span class=\"na\">isDirectory<\/span><span class=\"o\">()<\/span>\r\n<\/code><\/pre>\n<h2>\u5728NIO2\u7684\u60c5\u51b5\u4e0b<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">isDirectory<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">)<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5c06\u6587\u4ef6\u79fb\u52a8<\/p>\n<h2>\u6587\u4ef6\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528 File.renameTo \u8fd9\u4e2a\u65b9\u6cd5\u3002\u5b83\u4f1a\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\u6765\u8868\u793a\u662f\u5426\u6210\u529f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">file<\/span><span class=\"o\">.<\/span><span class=\"na\">renameTo<\/span><span class=\"o\">(<\/span><span class=\"n\">dest<\/span><span class=\"o\">);<\/span>\r\n<\/code><\/pre>\n<h2>\u5173\u4e8eNIO2\u7684\u60c5\u51b5\u60a8\u53ef\u4ee5\u4f7f\u7528 Files#move \u65b9\u6cd5\u6765\u5b9e\u73b0\uff0c\u5b83\u5c06\u8fd4\u56de\u4fee\u6539\u540e\u6587\u4ef6\u7684\u8def\u5f84\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">move<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">,<\/span> <span class=\"n\">destPath<\/span><span class=\"o\">);<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5220\u9664\u6587\u4ef6<\/p>\n<h2>\u5bf9\u4e8e\u6587\u4ef6\u7684\u60c5\u51b5<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">new<\/span> <span class=\"nc\">File<\/span><span class=\"o\">(<\/span><span class=\"s\">\"file.txt\"<\/span><span class=\"o\">).<\/span><span class=\"na\">delete<\/span><span class=\"o\">();<\/span>\r\n<\/code><\/pre>\n<h2>\u5728NIO2\u7684\u60c5\u51b5\u4e0b<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">delete<\/span><span class=\"o\">(<\/span><span class=\"nc\">Paths<\/span><span class=\"o\">.<\/span><span class=\"na\">get<\/span><span class=\"o\">(<\/span><span class=\"s\">\"file.txt\"<\/span><span class=\"o\">));<\/span>\r\n<\/code><\/pre>\n<p>\u53e6\u5916\uff0c\u8fd8\u6709\u4e00\u4e2a\u540d\u4e3a deleteIfExists \u7684\u65b9\u6cd5\uff0c\u5728\u5b58\u5728\u6587\u4ef6\u65f6\u4f1a\u5220\u9664\u6587\u4ef6\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">deleteIfExists<\/span><span class=\"o\">(<\/span><span class=\"nc\">Paths<\/span><span class=\"o\">.<\/span><span class=\"na\">get<\/span><span class=\"o\">(<\/span><span class=\"s\">\"file.txt\"<\/span><span class=\"o\">));<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u64cd\u4f5c\u6587\u4ef6\u5939\u5185\u7684\u6240\u6709\u6587\u4ef6\u5176\u5b9e\u8fd9\u4e2a\u6709\u70b9\u5947\u602a\u96be\u5ea6\u9ad8\u3002<\/p>\n<h2>\u5982\u679c\u662fjava.io.File\u7684\u60c5\u51b5\u5982\u679c\u4f60\u60f3\u64cd\u4f5c\u4f4d\u4e8e\u540d\u4e3adir\u7684\u6587\u4ef6\u5939\u4e2d\u7684\u6240\u6709\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528java.io.File\u5bf9\u8c61\u4ee5\u6570\u7ec4\u5f62\u5f0f\u83b7\u53d6\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">File<\/span><span class=\"o\">[]<\/span> <span class=\"n\">files<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">File<\/span><span class=\"o\">(<\/span><span class=\"s\">\"dir\"<\/span><span class=\"o\">).<\/span><span class=\"na\">listFiles<\/span><span class=\"o\">();<\/span>\r\n<\/code><\/pre>\n<h2>\u5728NIO2\u7684\u60c5\u51b5\u4e0b\u5982\u679c\u4f7f\u7528JDK8\uff0c\u4f7f\u7528Files#list(Path)\u51fd\u6570\u5c31\u5f88\u7b80\u5355\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Stream<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Path<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">files<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">list<\/span><span class=\"o\">(<\/span><span class=\"nc\">Paths<\/span><span class=\"o\">.<\/span><span class=\"na\">get<\/span><span class=\"o\">(<\/span><span class=\"n\">articleDir<\/span><span class=\"o\">));<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u9700\u8981\u7684\u4e0d\u662fStream\u800c\u662fList\uff0c\u90a3\u4e48\u5c31\u8fdb\u884ccollect\u64cd\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Path<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">files<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">list<\/span><span class=\"o\">(<\/span><span class=\"n\">f<\/span><span class=\"o\">).<\/span><span class=\"na\">collect<\/span><span class=\"o\">(<\/span><span class=\"nc\">Collectors<\/span><span class=\"o\">.<\/span><span class=\"na\">toList<\/span><span class=\"o\">());<\/span>\r\n<\/code><\/pre>\n<p>\u5728JDK7\u4e2d\u662f\u5426\u4f1a\u4f7f\u7528Files.newDirectoryStream\u5462\u2026\u2026<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">try<\/span> <span class=\"o\">(<\/span><span class=\"kd\">final<\/span> <span class=\"nc\">DirectoryStream<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Path<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">directoryStream<\/span>\r\n                <span class=\"o\">=<\/span> <span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">newDirectoryStream<\/span><span class=\"o\">(<\/span><span class=\"n\">dir<\/span><span class=\"o\">,<\/span> <span class=\"nl\">Articles:<\/span><span class=\"o\">:<\/span><span class=\"n\">isValidContentPath<\/span><span class=\"o\">)){<\/span>\r\n    <span class=\"c1\">\/\/ \u2026\u2026<\/span>\r\n<span class=\"o\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"o\">(<\/span><span class=\"kd\">final<\/span> <span class=\"nc\">IOException<\/span> <span class=\"n\">e<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"n\">e<\/span><span class=\"o\">.<\/span><span class=\"na\">printStackTrace<\/span><span class=\"o\">();<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u83b7\u53d6\u6587\u4ef6\u7684\u6700\u540e\u66f4\u65b0\u65e5\u671f\u548c\u65f6\u95f4\uff08\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d\uff09\u3002<\/p>\n<h2>\u5982\u679c\u662f\u6587\u4ef6\u7684\u60c5\u51b5\u4e0b\u53ef\u4ee5\u901a\u8fc7lastModified()\u65b9\u6cd5\u83b7\u53d6\u6beb\u79d2\u6570\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">final<\/span> <span class=\"kt\">long<\/span> <span class=\"n\">lastModifiedMs<\/span> <span class=\"o\">=<\/span> <span class=\"n\">file<\/span><span class=\"o\">.<\/span><span class=\"na\">lastModified<\/span><span class=\"o\">();<\/span>\r\n<\/code><\/pre>\n<h2>\u5bf9\u4e8eNIO2\u7684\u60c5\u51b5\u4e0b<br \/>\n\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528Files.getLastModifiedTime\u65b9\u6cd5\u83b7\u53d6FileTime\u5bf9\u8c61\uff0c\u4e4b\u540e\u5c06\u5176\u8f6c\u6362\u4e3a\u6beb\u79d2\uff0c\u5c31\u53ef\u4ee5\u50cf\u4ee5\u524d\u4e00\u6837\u83b7\u53d6\u6700\u540e\u4fee\u6539\u65e5\u671f\u65f6\u95f4\u3002FileTime\u7c7b\u63d0\u4f9b\u4e86\u591a\u79cd\u4e0d\u540c\u7684\u8f6c\u6362\u65b9\u6cd5\uff0c\u56e0\u6b64\u5728\u7f16\u7801\u9636\u6bb5\u5c31\u80fd\u8f7b\u677e\u907f\u514d\u201c\u672c\u4ee5\u4e3a\u662f\u4ee5\u79d2\u4e3a\u5355\u4f4d\uff0c\u7ed3\u679c\u5374\u662f\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d\u201d\u7684\u5e38\u89c1\u95ee\u9898\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">getLastModifiedTime<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">).<\/span><span class=\"na\">toMillis<\/span><span class=\"o\">());<\/span>\r\n<\/code><\/pre>\n<p>\u7136\u800c\uff0c\u4e0eFile\uff03lastModified\u4e0d\u540c\uff0cgetLastModifiedTime\u53ef\u80fd\u4f1a\u5f15\u53d1IOException\uff0c\u56e0\u6b64\u9700\u8981\u5904\u7406\u5f02\u5e38\u3002<\/p>\n<hr \/>\n<h1>\u6587\u4ef6\u7684\u4e00\u4e9b\u65b9\u4fbf\u65b9\u6cd5\u6211\u987a\u4fbf\u4ecb\u7ecd\u4e00\u4e9b\u3002<\/p>\n<h2>\u521b\u5efa\u4e00\u4e2a\u65b0\u7684BufferedReader\u5bf9\u8c61\uff0c\u7528\u4e8e\u8bfb\u53d6\u6307\u5b9a\u8def\u5f84\u4e0b\u7684\u6587\u4ef6\u3002\u5728\u8fc7\u53bb\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u901a\u8fc7\u5305\u88c5Reader\u5bf9\u8c61\u6765\u8fdb\u884c\u5927\u91cf\u7684\u521d\u59cb\u5316\u64cd\u4f5c\uff0c\u6216\u8005\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u81ea\u5b9a\u4e49\u7684FileUtils\u7c7b\u6765\u521d\u59cb\u5316FileReader\u5bf9\u8c61\u5e76\u8fd4\u56de\u3002\u60a8\u53ef\u80fd\u8fd8\u4f1a\u4f7f\u7528Apache Commons\u5e93\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">new<\/span> <span class=\"nc\">BufferedReader<\/span><span class=\"o\">(<\/span><span class=\"k\">new<\/span> <span class=\"nc\">InputStreamReader<\/span><span class=\"o\">(<\/span><span class=\"k\">new<\/span> <span class=\"nc\">FileInputStream<\/span><span class=\"o\">(<\/span><span class=\"n\">pTargetFileName<\/span><span class=\"o\">),<\/span> <span class=\"n\">pEncode<\/span><span class=\"o\">));<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u662f\u5173\u4e8e\u6587\u4ef6\u548c\u8def\u5f84\u7684\u60c5\u51b5\uff0c\u5982\u679c\u8981\u8bfb\u53d6\u7684\u6587\u4ef6\u7f16\u7801\u4e3a UTF-8\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u5f0f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">final<\/span> <span class=\"nc\">BufferedReader<\/span> <span class=\"n\">fileReader<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">newBufferedReader<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">)<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u5728\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e2d\u4f20\u9012Charset\uff0c\u60a8\u53ef\u4ee5\u5904\u7406\u4f7f\u7528\u4e0d\u540c\u7f16\u7801\u7684\u6587\u4ef6\u3002<\/p>\n<h2>\u521b\u5efa\u6587\u4ef6\u65b0\u7684\u7f13\u51b2\u5199\u5165\u5668\u3002\u5f53\u7136\u8fd8\u6709Writer\u7684\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">final<\/span> <span class=\"nc\">BufferedWriter<\/span> <span class=\"n\">writer<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">newBufferedWriter<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">);<\/span>\r\n<\/code><\/pre>\n<h2>\u8bfb\u53d6\u6240\u6709\u884c\u7684\u6587\u4ef6\u3002\u53ef\u4ee5\u8bfb\u53d6\u6587\u4ef6\u7684\u5185\u5bb9\u5e76\u9010\u884c\u653e\u5165\u4e00\u4e2a\u5217\u8868\u4e2d\u8fdb\u884c\u83b7\u53d6\u3002\u8fd9\u79cd\u7c7b\u578b\u7684\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u81ea\u5df1\u7f16\u5199\u5e76\u53cd\u590d\u4f7f\u7528\uff0c\u975e\u5e38\u65b9\u4fbf\u3002\u9700\u8981\u8fdb\u884cIOException\u7684\u5f02\u5e38\u5904\u7406\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">final<\/span> <span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">lines<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">readAllLines<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">);<\/span>\r\n<\/code><\/pre>\n<h2>\u8bfb\u53d6\u6587\u4ef6#\u8bfb\u53d6\u6240\u6709\u5b57\u8282\u8fd9\u4e2a\u65b9\u6cd5\u7528\u4e8e\u5c06\u5c0f\u6587\u4ef6\u8bfb\u5165\u4e00\u4e2a\u5b57\u8282\u6570\u7ec4\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">final<\/span> <span class=\"kt\">byte<\/span><span class=\"o\">[]<\/span> <span class=\"n\">bytes<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">readAllBytes<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">);<\/span>\r\n<\/code><\/pre>\n<h2>\u6587\u4ef6#\u5199\u5165\u5c06\u5b57\u8282\u6570\u7ec4\u7684\u5185\u5bb9\u5199\u5165\u5230\u6307\u5b9a\u8def\u5f84\u7684\u6587\u4ef6\u4e2d\u3002\u5982\u679c\u8981\u5c06\u5b57\u7b26\u4e32str\u7684\u5185\u5bb9\u8f93\u51fa\u5230\u8def\u5f84\u6587\u4ef6\u4e2d\uff0c\u8bf7\u6309\u7167\u4ee5\u4e0b\u65b9\u5f0f\u8fdb\u884c\u3002\u9700\u8981\u8fdb\u884cIOException\u7684\u5f02\u5e38\u5904\u7406\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">write<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">,<\/span> <span class=\"n\">str<\/span><span class=\"o\">.<\/span><span class=\"na\">getBytes<\/span><span class=\"o\">(<\/span><span class=\"nc\">StandardCharsets<\/span><span class=\"o\">.<\/span><span class=\"na\">UTF_8<\/span><span class=\"o\">.<\/span><span class=\"na\">name<\/span><span class=\"o\">()));<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u603b\u7ed3\u6211\u4e3b\u8981\u8ba8\u8bba\u4e86\u5c06\u73b0\u6709\u7684File\u4ee3\u7801\u66ff\u6362\u4e3a\u4f7f\u7528Path\u548cFiles\u7684\u4ee3\u7801\u7684\u65b9\u6cd5\u3002Files\u4e2d\u6709\u8bb8\u591a\u9700\u8981\u5f02\u5e38\u5904\u7406\u7684\u65b9\u6cd5\uff0c\u9700\u8981\u4e00\u4e2a\u5408\u9002\u5904\u7406\u5f02\u5e38\u7684\u7f16\u7a0b\u98ce\u683c\u3002\u76f8\u6bd4\u4e8eFile\u65f6\uff0c\u952e\u5165\u7684\u5b57\u7b26\u6570\u4e5f\u4f1a\u7b80\u5355\u5730\u589e\u52a0\uff0c\u6240\u4ee5\u4e00\u5f00\u59cb\u53ef\u80fd\u4f1a\u6709\u4e9b\u56f0\u96be\u3002\u9057\u61be\u7684\u662f\uff0c\u9700\u8981\u5f02\u5e38\u5904\u7406\u7684\u65b9\u6cd5\u4e0eLambda\u8868\u8fbe\u5f0f\u7684\u517c\u5bb9\u6027\u4e0d\u592a\u597d\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u867d\u7136\u8fd9\u6b21\u6ca1\u6709\u63d0\u5230\uff0c\u4f46 Files \u7c7b\u7684\u65b9\u6cd5\u5927\u591a\u6570\u57fa\u4e8e\u6587\u4ef6\u7684\u7f16\u7801\u4e3a UTF-8\uff0c\u8bf7\u6ce8\u610f\u5982\u679c\u4f7f\u7528\u5176\u4ed6\u7f16\u7801\u53ef\u80fd\u9700\u8981\u505a\u4e00\u4e9b\u56f0\u96be\u7684\u5904\u7406\u3002<\/p>\n<hr \/>\n<h1>\u4ec5\u9700\u4e00\u4e2a\u9009\u9879\uff0c\u4ee5\u4e0b\u662f\u4ee5\u4e2d\u6587\u539f\u751f\u65b9\u5f0f\u7684\u91ca\u4e49\uff1a\u53c2\u8003\u3002<\/p>\n<h2>\u56fe\u4e66\u300e\u73fe\u5834\u3067\u4f7f\u3048\u308b\uff3b\u6700\u65b0\uff3dJava SE 7\/8 \u901f\u653b\u5165\u9580\u300f\u2026\u2026NIO \u306b\u3064\u3044\u3066\u306e\u6b74\u53f2\u3084\u80cc\u666f\u3084\u610f\u7fa9\u3001\u3055\u3089\u306b\u4f7f\u3044\u65b9\u307e\u3067\u975e\u5e38\u306b\u8a73\u3057\u304f\u7d39\u4ecb\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u7f51\u7edc<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30d5\u30a1\u30a4\u30eb\u30fb\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u64cd\u4f5c2<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul 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