{"id":645,"date":"2023-07-09T07:25:37","date_gmt":"2023-12-15T18:01:13","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/java%e5%88%9b%e5%bb%ba%e6%96%b0%e6%96%87%e4%bb%b6\/"},"modified":"2025-08-03T00:44:02","modified_gmt":"2025-08-02T16:44:02","slug":"java%e5%88%9b%e5%bb%ba%e6%96%b0%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java%e5%88%9b%e5%bb%ba%e6%96%b0%e6%96%87%e4%bb%b6\/","title":{"rendered":"Java\u521b\u5efa\u65b0\u6587\u4ef6\u7684\u5b8c\u6574\u6307\u5357\uff1a\u591a\u79cd\u65b9\u6cd5\u4e0e\u5b9e\u4f8b\u89e3\u6790"},"content":{"rendered":"

\u5728Java\u4e2d\u521b\u5efa\u6587\u4ef6\u662f\u4e00\u79cd\u975e\u5e38\u5e38\u89c1\u7684IO\u64cd\u4f5c\u3002\u4eca\u5929\u6211\u4eec\u5c06\u63a2\u8ba8\u4e0d\u540c\u7684\u521b\u5efa\u6587\u4ef6\u65b9\u6cd5\u3002<\/p>\n

\u7528Java\u521b\u5efa\u6587\u4ef6<\/h2>\n

\u6709\u4e09\u79cd\u6d41\u884c\u7684\u65b9\u6cd5\u53ef\u4ee5\u5728Java\u4e2d\u521b\u5efa\u6587\u4ef6\u3002\u8ba9\u6211\u4eec\u9010\u4e00\u6765\u770b\u770b\u5b83\u4eec\u3002<\/p>\n

    \n
  1. \n
      File.createNewFile()\u53ef\u4ee5\u7528\u4e8e\u5728Java\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6587\u4ef6\u3002\u5f53\u6211\u4eec\u521d\u59cb\u5316File\u5bf9\u8c61\u65f6\uff0c\u6211\u4eec\u63d0\u4f9b\u6587\u4ef6\u540d\uff0c\u7136\u540e\u6211\u4eec\u53ef\u4ee5\u8c03\u7528createNewFile()\u65b9\u6cd5\u6765\u5728Java\u4e2d\u521b\u5efa\u65b0\u6587\u4ef6\u3002\u5982\u679c\u65b0\u6587\u4ef6\u88ab\u521b\u5efa\uff0c\u5219File createNewFile()\u65b9\u6cd5\u8fd4\u56detrue\uff0c\u5982\u679c\u6587\u4ef6\u5df2\u7ecf\u5b58\u5728\u5219\u8fd4\u56defalse\u3002\u5f53\u65e0\u6cd5\u521b\u5efa\u6587\u4ef6\u65f6\uff0c\u6b64\u65b9\u6cd5\u8fd8\u4f1a\u629b\u51fajava.io.IOException\u5f02\u5e38\u3002\u521b\u5efa\u7684\u6587\u4ef6\u662f\u7a7a\u7684\u4e14\u4e3a\u96f6\u5b57\u8282\u3002\u5f53\u6211\u4eec\u901a\u8fc7\u4f20\u9012\u6587\u4ef6\u540d\u521b\u5efaFile\u5bf9\u8c61\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u7edd\u5bf9\u8def\u5f84\uff0c\u4e5f\u53ef\u4ee5\u53ea\u63d0\u4f9b\u6587\u4ef6\u540d\uff0c\u6216\u8005\u63d0\u4f9b\u76f8\u5bf9\u8def\u5f84\u3002\u5bf9\u4e8e\u975e\u7edd\u5bf9\u8def\u5f84\uff0cFile\u5bf9\u8c61\u5c1d\u8bd5\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e2d\u5b9a\u4f4d\u6587\u4ef6\u3002\u5982\u679c\u6211\u4eec\u4ece\u547d\u4ee4\u884c\u8fd0\u884c\u7a0b\u5e8f\uff0c\u5e76\u4e14\u5bf9\u4e8e\u975e\u7edd\u5bf9\u8def\u5f84\uff0cFile\u5bf9\u8c61\u4f1a\u5c1d\u8bd5\u4ece\u5f53\u524d\u76ee\u5f55\u4e2d\u5b9a\u4f4d\u6587\u4ef6\u3002\u5728\u521b\u5efa\u6587\u4ef6\u8def\u5f84\u65f6\uff0c\u6211\u4eec\u5e94\u8be5\u4f7f\u7528System\u5c5e\u6027file.separator\u4f7f\u6211\u4eec\u7684\u7a0b\u5e8f\u5728\u5404\u4e2a\u5e73\u53f0\u4e0a\u90fd\u662f\u72ec\u7acb\u7684\u3002\u8ba9\u6211\u4eec\u7528\u4e00\u4e2a\u7b80\u5355\u7684java\u7a0b\u5e8f\u6765\u770b\u4e0d\u540c\u7684\u573a\u666f\u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6\u3002<\/ol>\n<\/li>\n<\/ol>\n

      \u4ee5\u4e0b\u662f\u7528Eclipse IDE\u7b2c\u4e00\u6b21\u6267\u884c\u4ee5\u4e0a\u7a0b\u5e8f\u65f6\u4ea7\u751f\u7684\u8f93\u51fa\u3002
      \n\/Users\/scdev\/file.txt \u6587\u4ef6\u5df2\u521b\u5efa
      \n\u6587\u4ef6file.txt\u5df2\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e2d\u521b\u5efa
      \n\u5728\u4e3b\u7ebf\u7a0b\u4e2d\u7684\u5f02\u5e38java.io.IOException: No such file or directory
      \nat java.io.UnixFileSystem.createFileExclusively(Native Method)
      \nat java.io.File.createNewFile(File.java:947)
      \nat com.Olivia.files.CreateNewFile.main(CreateNewFile.java:32)<\/p>\n

      \u5bf9\u4e8e\u76f8\u5bf9\u8def\u5f84\uff0c\u5b83\u629b\u51faIOException\uff0c\u56e0\u4e3atmp\u76ee\u5f55\u4e0d\u5728\u9879\u76ee\u6839\u6587\u4ef6\u5939\u4e2d\u3002\u56e0\u6b64\uff0c\u5f88\u660e\u663e\uff0ccreateNewFile()\u53ea\u662f\u5c1d\u8bd5\u521b\u5efa\u6587\u4ef6\uff0c\u800c\u4efb\u4f55\u76ee\u5f55\uff0c\u65e0\u8bba\u662f\u7edd\u5bf9\u8fd8\u662f\u76f8\u5bf9\uff0c\u90fd\u5e94\u8be5\u5df2\u7ecf\u5b58\u5728\uff0c\u5426\u5219\u5b83\u4f1a\u629b\u51faIOException\u3002\u56e0\u6b64\uff0c\u6211\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e2d\u521b\u5efa\u4e86\u201ctmp\u201d\u76ee\u5f55\uff0c\u5e76\u518d\u6b21\u6267\u884c\u4e86\u8be5\u7a0b\u5e8f\uff0c\u4ee5\u4e0b\u662f\u8f93\u51fa\u7ed3\u679c\u3002
      \n\u6587\u4ef6\/Users\/scdev\/file.txt\u5df2\u5b58\u5728
      \n\u6587\u4ef6file.txt\u5df2\u7ecf\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e2d\u5b58\u5728
      \ntmp\/file.txt\u6587\u4ef6\u5df2\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e2d\u521b\u5efa<\/p>\n

      \u7b2c\u4e00\u4e8c\u4e2a\u6587\u4ef6\u5df2\u7ecf\u5b58\u5728\uff0c\u6240\u4ee5createNewFile()\u8fd4\u56defalse\uff0c\u7b2c\u4e09\u4e2a\u6587\u4ef6\u521b\u5efa\u5728tmp\u76ee\u5f55\u4e2d\u5e76\u8fd4\u56detrue\u3002\u4efb\u4f55\u540e\u7eed\u7684\u6267\u884c\u4ecd\u4f1a\u4ea7\u751f\u4ee5\u4e0b\u8f93\u51fa\uff1a
      \n\u6587\u4ef6\/Users\/scdev\/file.txt\u5df2\u5b58\u5728
      \n\u6587\u4ef6file.txt\u5df2\u7ecf\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e2d\u5b58\u5728
      \ntmp\/file.txt\u6587\u4ef6\u5df2\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e2d\u5b58\u5728<\/p>\n

      \u5982\u679c\u4f60\u4ece\u7ec8\u7aef\u7c7b\u76ee\u5f55\u8fd0\u884c\u76f8\u540c\u7684\u7a0b\u5e8f\uff0c\u4ee5\u4e0b\u662f\u8f93\u51fa\u7ed3\u679c\u3002
      \n\/\/\u4ece\u7c7b\u8f93\u51fa\u76ee\u5f55\u4e2d\u6267\u884c\u7b2c\u4e00\u6b21
      \nscdev:~\/CODE\/JavaFiles\/bin$ java com\/scdev\/files\/CreateNewFile
      \n\u6587\u4ef6\/Users\/scdev\/file.txt\u5df2\u5b58\u5728
      \n\u6587\u4ef6file.txt\u5df2\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e2d\u521b\u5efa
      \n\u5728\u4e3b\u7ebf\u7a0b\u4e2d\u7684\u5f02\u5e38java.io.IOException: No such file or directory
      \nat java.io.UnixFileSystem.createFileExclusively(Native Method)
      \nat java.io.File.createNewFile(File.java:947)
      \nat com.Olivia.files.CreateNewFile.main(CreateNewFile.java:32)<\/p>\n

      \/\/tmp\u76ee\u5f55\u4e0d\u5b58\u5728\uff0c\u8ba9\u6211\u4eec\u521b\u5efa\u5b83
      \nscdev:~\/CODE\/JavaFiles\/bin$ mkdir tmp<\/p>\n

      \/\/\u7b2c\u4e8c\u6b21\u6267\u884c
      \nscdev:~\/CODE\/JavaFiles\/bin$ java com\/scdev\/files\/CreateNewFile
      \n\u6587\u4ef6\/Users\/scdev\/file.txt\u5df2\u5b58\u5728
      \n\u6587\u4ef6file.txt\u5df2\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e2d\u5b58\u5728
      \ntmp\/file.txt\u6587\u4ef6\u5df2\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e2d\u521b\u5efa<\/p>\n

      \/\/\u7b2c\u4e09\u6b21\u548c\u540e\u7eed\u6267\u884c
      \nscdev:~\/CODE\/JavaFiles\/bin$ java com\/scdev\/files\/CreateNewFile
      \n\u6587\u4ef6\/Users\/scdev\/file.txt\u5df2\u5b58\u5728
      \n\u6587\u4ef6file.txt\u5df2\u7ecf\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e2d\u5b58\u5728
      \ntmp\/file.txt\u6587\u4ef6\u5df2\u7ecf\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e2d\u5b58\u5728<\/p>\n

      FileOutputStream.write(byte[] b)
      \n\u5982\u679c\u4f60\u60f3\u540c\u65f6\u521b\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6\u5e76\u5f80\u5176\u4e2d\u5199\u5165\u4e00\u4e9b\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528FileOutputStream\u7684write\u65b9\u6cd5\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7801\u7247\u6bb5\u6765\u5c55\u793a\u5176\u7528\u6cd5\u3002\u4e0a\u8ff0\u7edd\u5bf9\u8def\u5f84\u548c\u76f8\u5bf9\u8def\u5f84\u7684\u89c4\u5219\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u540c\u6837\u9002\u7528\u3002
      \nString fileData = “Pankaj Kumar”;
      \nFileOutputStream fos = new FileOutputStream(“name.txt”);
      \nfos.write(fileData.getBytes());
      \nfos.flush();
      \nfos.close();<\/p>\n

      Java NIO Files.write()
      \n\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Java NIO Files\u7c7b\u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6\u5e76\u5c06\u4e00\u4e9b\u6570\u636e\u5199\u5165\u5176\u4e2d\u3002\u8fd9\u662f\u4e00\u4e2a\u5f88\u597d\u7684\u9009\u62e9\uff0c\u56e0\u4e3a\u6211\u4eec\u4e0d\u5fc5\u62c5\u5fc3\u5173\u95edIO\u8d44\u6e90\u3002
      \nString fileData = “Pankaj Kumar”;
      \nFiles.write(Paths.get(“name.txt”), fileData.getBytes())\u3002<\/p>\n

      \u8fd9\u5c31\u662f\u5728Java\u7a0b\u5e8f\u4e2d\u521b\u5efa\u65b0\u6587\u4ef6\u7684\u5168\u90e8\u5185\u5bb9\u3002<\/p>\n

      \u4f60\u53ef\u4ee5\u5728\u6211\u4eec\u7684GitHub\u5b58\u50a8\u5e93\u4e2d\u67e5\u770b\u66f4\u591a\u7684\u6838\u5fc3Java\u793a\u4f8b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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