Android：没有找到这样的文件或目录错误？ [英] Android: No such file or directory found error?

问题描述

我正在播放和录制音频，以便使用musicg API进行音频匹配分析。我每次运行我的应用程序时都会收到以下错误：

I'm playing and recording an audio simultaneously in order to perform audio matching analysis using musicg API. I'm getting the following error/s everytime I run my app:

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

我正在尝试将录制文件保存到文件中，然后将其传递给getScore（）方法是为了将其与播放的原始音频文件进行比较并返回匹配的分数。下面是我的MainActivity中的相关代码，其中的行以粗体显示错误。

I'm trying to save the recording to a file and then pass it to getScore() method in order to compare it to the original audio file played and return a matching score. Below is the relevant code in my MainActivity with the lines giving the error in bold.

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);
        }

推荐答案

我认为问题出在copyWaveFile（）：

I think the problem is in copyWaveFile():

您正在将mFileName变量发送到copyWaveFile（），但使用以下代码更改其路径：

You are sending mFileName variable to copyWaveFile() but changing its path using following code:

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

尝试删除以上行并再次检查。如果同样的错误仍然存​​在，请告诉我。

Try removing above line and check once again. Let me know if same error persists.

这篇关于Android：没有找到这样的文件或目录错误？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！