Android：没有找到这样的文件或目录错误？

Question

我正在播放和录制音频，以便使用musicg API执行音频匹配分析。我收到以下错误/秒，每次我跑我的应用程序：

V/playRecordAudio: Playing sound & recording stopped 
W/System.err: java.io.FileNotFoundException: /storage/emulated/0: open failed: EISDIR (Is a directory) 
W/System.err:  at libcore.io.IoBridge.open(IoBridge.java:452) 
W/System.err:  at java.io.FileOutputStream.<init>(FileOutputStream.java:87) 
W/System.err:  at java.io.FileOutputStream.<init>(FileOutputStream.java:127) 
W/System.err:  at java.io.FileOutputStream.<init>(FileOutputStream.java:116) 
W/System.err:  at com.android.project1.main.fragments.SpeakersFragment.copyWaveFile(SpeakersFragment.java:316) 
W/System.err:  at com.android.project1.main.fragments.SpeakersFragment.stopRecording(SpeakersFragment.java:284) 
W/System.err:  at com.android.project1.main.fragments.SpeakersFragment.access$200(SpeakersFragment.java:45) 
W/System.err:  at com.android.project1.main.fragments.SpeakersFragment$3.onCompletion(SpeakersFragment.java:176) 
W/System.err:  at android.media.MediaPlayer$EventHandler.handleMessage(MediaPlayer.java:2821) 
W/System.err:  at android.os.Handler.dispatchMessage(Handler.java:102) 
W/System.err:  at android.os.Looper.loop(Looper.java:148) 
W/System.err:  at android.app.ActivityThread.main(ActivityThread.java:5417) 
W/System.err:  at java.lang.reflect.Method.invoke(Native Method) 
W/System.err:  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
W/System.err:  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
W/System.err: Caused by: android.system.ErrnoException: open failed: EISDIR (Is a directory) 
W/System.err:  at libcore.io.Posix.open(Native Method) 
W/System.err:  at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186) 
W/System.err:  at libcore.io.IoBridge.open(IoBridge.java:438) 
W/System.err: ... 14 more 
W/System.err: java.io.FileNotFoundException: /storage/emulated/0/AudioRecorder/1491446370522.wav: open failed: ENOENT (No such file or directory) 
W/System.err:  at libcore.io.IoBridge.open(IoBridge.java:452) 
W/System.err:  at java.io.FileInputStream.<init>(FileInputStream.java:76) 
W/System.err:  at java.io.FileInputStream.<init>(FileInputStream.java:103) 
W/System.err:  at com.android.project1.main.fragments.SpeakersFragment.getScore(SpeakersFragment.java:399) 
W/System.err:  at com.android.project1.main.fragments.SpeakersFragment.stopRecording(SpeakersFragment.java:285) 
W/System.err:  at com.android.project1.main.fragments.SpeakersFragment.access$200(SpeakersFragment.java:45) 
W/System.err:  at com.android.project1.main.fragments.SpeakersFragment$3.onCompletion(SpeakersFragment.java:176) 
W/System.err:  at android.media.MediaPlayer$EventHandler.handleMessage(MediaPlayer.java:2821) 
W/System.err:  at android.os.Handler.dispatchMessage(Handler.java:102) 
W/System.err:  at android.os.Looper.loop(Looper.java:148) 
W/System.err:  at android.app.ActivityThread.main(ActivityThread.java:5417) 
W/System.err:  at java.lang.reflect.Method.invoke(Native Method) 
W/System.err:  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
W/System.err:  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
W/System.err: Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory) 
W/System.err:  at libcore.io.Posix.open(Native Method) 
W/System.err:  at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186) 
W/System.err:  at libcore.io.IoBridge.open(IoBridge.java:438) 
W/System.err: ... 13 more 
I/System.out: 0.0 
W/MediaPlayer: mediaplayer went away with unhandled events 

我试图在记录保存到一个文件，然后把它传递给getScore（）方法，以将其与原来的播放音频文件并返回匹配的分数。以下是我的MainActivity中的相关代码，其中以粗体显示错误的行。

编辑1：

String mFileName = getFilename(); 
... 
private void stopRecording() { 
      if (null != recorder) { 
       isRecording = false; 

       int i = recorder.getState(); 
       if (i == 1) 
        recorder.stop(); 
       recorder.release(); 

       recorder = null; 
       recordingThread = null; 
      } 

      copyWaveFile(getTempFilename(), mFileName); 
      getScore(); //error here 
      deleteTempFile(); 
     } 

public void getScore(){ 

      String fileName1 = mFileName; 
      String fileName2 = "R.raw.forrest_gump_theme"; //Need to change this 

      try { 
       //InputStream fis1 = null, fis2 = null; 
       InputStream fis1, fis2; 
       fis1 = new FileInputStream(fileName1);//error here 
       fis2 = new FileInputStream(fileName2); 

       Wave wave1 = new Wave(fis1), wave2 = new Wave (fis2); 
       FingerprintSimilarity similarity; 

       similarity = wave1.getFingerprintSimilarity(wave2); 
       result = similarity.getSimilarity()*100; 


      }catch (Exception e){ 
       e.printStackTrace(); 
      } 
      System.out.println(result); 
     } 

Answer 1

我认为这个问题是在copyWaveFile（）：

您正在使用下面的代码发送mFileName变量copyWaveFile（），但改变其路径：

outFilename = Environment.getExternalStorageDirectory().getPath(); 

尝试删除上面的行并再次检查。让我知道如果相同的错误仍然存​​在。