Android：FileNotFoundException如何创建文件？

Question

我有以下代码：

    try{
             File sdCard = Environment.getExternalStorageDirectory();
             File directory = new File (sdCard.getAbsolutePath() + "/statReporter/");
             directory.mkdirs();

             //Path and name of XML file
             File file = new File(directory, appendTimeStamp("statReporter") + ".csv");
             FileOutputStream fOut = new FileOutputStream(file);
             OutputStreamWriter osw = new OutputStreamWriter(fOut);

             //Write to CSV File
             osw.write(message);
             osw.write(',');

             //Flush and close OutPutStreamWriter and close FileOutputStream
             osw.flush();
             osw.close();
             fOut.close();

             Log.d("File Logger:", "File write successfully!");

     }catch(IOException ioe){
             ioe.printStackTrace();
     }

我得到以下异常：

java.io.FileNotFoundException: /mnt/sdcard/statReporter/Date:3/24/2013Time:11:932statReporter,.csv: open failed: ENOENT (No such file or directory)

Answer 1

我发现了错误：

我更改了文件名。摆脱“：”和“/”和“，”

Answer 2

在文件名Date:3/24/2013Time:11:932statReporter,.csv中有/分隔符......它将被视为目录。