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[英]open failed: EACCES (Permission denied) while trying to create csv file
[英]Android create file exception EACCES (Permission denied)
我無法寫入android設備或仿真器的內部存儲。 我可以寫入外部存儲目錄中的文件。
我在createNewFile調用中收到此異常EACCES(權限被拒絕)。
WRITE_EXTERNAL_STORAGE權限在我的清單中正確的位置
public static Boolean writeFile(String filename, String data)
{
try
{
File file = new File(filename);
// If file does not exists, then create it
if (!file.exists())
{
Log.d("MyLog","file doesn't exist, creating");
file.getParentFile().mkdirs();
file.createNewFile();
}
FileWriter fw = new FileWriter(file.getAbsoluteFile());
BufferedWriter bw = new BufferedWriter(fw);
bw.write(data);
bw.close();
//Log.d("Success","Success");
return true;
}
catch (IOException e)
{
e.printStackTrace();
Log.d("MyLog","writeFile fail, error:"+e.getMessage());
return false;
}
}
我嘗試了許多路徑:
filename=Environment.getRootDirectory()+"/"+"test.dat";
filename=Environment.getDataDirectory()+"/"+"test.dat";
filename="data/data/com.android.emsi/testnew.txt";
唯一起作用的是:filename = Environment.getExternalStorageDirectory()+“ /” +“ test.dat”;
嘗試這個
String filename = "myfile";
String string = "Hello world!";
FileOutputStream outputStream;
try {
outputStream = openFileOutput(filename, Context.MODE_PRIVATE);
outputStream.write(string.getBytes());
outputStream.close();
} catch (Exception e) {
e.printStackTrace();
}
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