android– 写入sdCard时权限被拒绝

概述我正在尝试将文件写入SDCard,但我在logcat中收到错误：01-2409:03:33.647:W/System.err(3353):java.io.FileNotFoundException:/mnt/sdcard/fun/itisfun.txt:openfailed:EACCES(Permissiondenied)01-2408:24:28.007:W/System.err(3353):Causedby:libcore.io.Err

我正在尝试将文件写入SDCard,但我在logcat中收到错误：

01-24 09:03:33.647: W/System.err(3353): java.io.fileNotFoundException: /mnt/sdcard/fun/itisfun.txt: open Failed: EACCES (Permission denIEd)    01-24 08:24:28.007: W/System.err(3353): Caused by: libcore.io.ErrnoException: open Failed: EACCES (Permission denIEd)    01-24 09:03:33.756: W/System.err(3353):at libcore.io.Posix.open(Native Method)

在这里我的代码写入SDCard：

file root = null;     try {      // check for SDcard       root = Environment.getExternalStorageDirectory();                       Log.i(TAG,"path.." +root.getabsolutePath());      //check sdcard permission      if (root.canWrite()){          file fileDir = new file(root.getabsolutePath()+"/fun/");          fileDir.mkdirs();          file file = new file(fileDir, "itisfun.txt");          fileWriter filewriter = new fileWriter(file);          BuffereDWriter out = new BuffereDWriter(filewriter);          out.write("I m enjoying......dude");          out.close();    }} catch(...) {    ...}

表现：

<uses-permission androID:name="androID.permission.WRITE_EXTERNAL_STORAGE" /><permission  androID:name="androID.permission.INTERNET"></permission>

解决方法:

要写入Sdcard,您需要在清单文件中授予权限

 <uses-permission androID:name="androID.permission.WRITE_EXTERNAL_STORAGE" />

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