音频播放错误

Question

我正在尝试录制音频文件并播放它，但我收到了错误：Locator does not reference a valid media file。我错过了什么？ 这是我保存音频文件的代码：

//Stop recording, capture data from the OutputStream,
//close the OutputStream and player.
_rcontrol.commit();
_data = _output.toByteArray();
_output.close();
_player.close();
isRecording = 0;
try  {
    FileConnection fc = (FileConnection)Connector.open("file:///store/home/user/Audio.mp3");
    // If no exception is thrown, then the URI is valid, but the file may or may not exist.
    if (!fc.exists()) {
        fc.create();  // create the file if it doesn't exist
    }
    OutputStream outStream = fc.openOutputStream(); 
    outStream.write(_data);
    outStream.close();
    fc.close();
    System.out.println("audio size: "+_data.length);

我可以在日志中看到我的音频文件有一定的长度（录制3-4秒后约为5000） 这是我的代码，我正在尝试播放它：

FileConnection fc = (FileConnection)Connector.open("file:///store/home/user/Audio.mp3");
// If no exception is thrown, then the URI is valid, but the file may or may not exist.
if (fc.exists()) {
    _player = Manager.createPlayer("file:///store/home/user/Audio.mp3"); 
    _player.realize(); 
    _player.prefetch(); 

    if (_player.getMediaTime() == _player.TIME_UNKNOWN) {
        System.out.println("zero audio doration");
    }
    else {
        System.out.println("audio doration: "+_player.getMediaTime());
    }
    _player.start();
 }
 fc.close();