FileNotFoundException EACCES(权限被拒绝)

FileNotFoundException EACCES(权限被拒绝),第1张

当我试图打开FileInputStream时,我得到一个例外,即文件打开权限被拒绝。

 File myFile = new File(Environment.getExternalStorageDirectory()
           .getAbsolutePath()   "/test/test.txt");
 try {
      FileInputStream inStream = new FileInputStream(myFile); // crash

这是堆栈跟踪:

 System.err﹕ java.io.FileNotFoundException: /storage/emulated/0/test/test.txt: open failed: EACCES (Permission denied)
 System.err﹕ at libcore.io.IoBridge.open(IoBridge.java:456)
 System.err﹕ at java.io.FileInputStream.<init>(FileInputStream.java:76)

 ...

 Caused by: android.system.ErrnoException: open failed: EACCES (Permission denied)
 at libcore.io.Posix.open(Native Method)
 at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186)
 at libcore.io.IoBridge.open(IoBridge.java:442)

是的,我的清单中有权限:

<uses-permission android:name="ANDROID.PERMISSION.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="ANDROID.PERMISSION.WRITE_EXTERNAL_STORAGE" />

最佳答案:

1 个答案:

答案 0 :(得分:3)

Android区分大小写。将ANDROID.PERMISSION替换为android.permission

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

此外,您应该只需要其中一个权限。如果您打算写入外部存储,则不应该还需要READ_EXTERNAL_STORAGE

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