我正在尝试在录制结束时将音频文件上传到服务器。我已将CurrentDate和Time设置为音频文件名，您可以在下面的代码中看到。
private String getFilename() {
String filepath = Environment.getExternalStorageDirectory().getPath();
File file = new File(filepath, AUDIO_RECORDER_FOLDER);
SimpleDateFormat sdfDate = new SimpleDateFormat("dd-MMM-yyyy hh-mm-ss");
String currentDateandTime = sdfDate.format(new Date());
if (!file.exists()) {
file.mkdirs();
}
return (file.getAbsolutePath() + "/" + currentDateandTime + file_exts[currentFormat]);
}
所以现在文件将被存储为sdcard中的 2014年1月23日12-34-55.mp4 。
private void startRecording() {
recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(output_formats[currentFormat]);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(getFilename());
recorder.setOnErrorListener(errorListener);
recorder.setOnInfoListener(infoListener);
try {
recorder.prepare();
recorder.start();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private void stopRecording() {
if (null != recorder) {
recorder.stop();
recorder.reset();
recorder.release();
recorder = null;
doAudioFileUpload(getFilename());
}
}
private void doAudioFileUpload(String path) {
HttpURLConnection conn = null;
DataOutputStream dos = null;
DataInputStream inStream = null;
String existingFileName = path;
System.out.println("Inside of doupload nd path is === " + path);
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024 * 1024;
String urlString = "http://server-link/folder-name/upload_audio.php";
try {
// ------------------ CLIENT REQUEST
FileInputStream fileInputStream = new FileInputStream(new File(
existingFileName));
// open a URL connection to the Servlet
URL url = new URL(urlString);
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
// Allow Inputs
conn.setDoInput(true);
// Allow Outputs
conn.setDoOutput(true);
// Don't use a cached copy.
conn.setUseCaches(false);
// Use a post method.
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\""
+ existingFileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
// create a buffer of maximum size
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// close streams
Log.e("Debug", "File is written");
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
Log.e("Debug", "error: " + ex.getMessage(), ex);
} catch (IOException ioe) {
Log.e("Debug", "error: " + ioe.getMessage(), ioe);
}
// ------------------ read the SERVER RESPONSE
try {
inStream = new DataInputStream(conn.getInputStream());
String str;
while ((str = inStream.readLine()) != null) {
Log.e("Debug", "Server Response " + str);
}
inStream.close();
} catch (IOException ioex) {
Log.e("Debug", "error: " + ioex.getMessage(), ioex);
}
}
现在我用下面的行将我的录音存储在SD卡中
recorder.setOutputFile(getFilename());
以及将音频文件上传到服务器的行。
doAudioFileUpload(getFilename());
因此它同时使用相同的getFilename（）。现在问题发生在第一次recorder.setOutputFile(getFilename());这个调用时它会将文件名存储在SD卡中23-Jan-2014 12-34-55.mp4，并且在20秒的记录之后当这一行调用上传音频到服务器时它应该上传23-Jan-2014 12-34-15.mp4此文件，但不是这样，而是搜索23-Jan-2014 12-34-55.mp4文件，并向我显示找不到文件的错误。
所以基本上在录制开始后，当我调用doAudioFileUpload(getFilename());时，它开始搜索currentDateandTime文件，而不是我录制的文件。
我尝试使用一些动态名称上传文件，但它工作正常但是当我尝试对此日期和时间执行相同操作时会出错。
请帮我解决这个问题。任何帮助，将不胜感激。提前谢谢......
修改我的Logcat位于
之下01-23 14:12:54.716: I/System.out(9279): Inside of doupload nd path is === /mnt/sdcard/AudioRecorder/23-Jan-2014 02-12-54.mp4
01-23 14:12:54.765: E/Debug(9279): error: /mnt/sdcard/AudioRecorder/23-Jan-2014 02-12-54.mp4: open failed: ENOENT (No such file or directory)
01-23 14:12:54.765: E/Debug(9279): java.io.FileNotFoundException: /mnt/sdcard/AudioRecorder/23-Jan-2014 02-12-54.mp4: open failed: ENOENT (No such file or directory)
01-23 14:12:54.765: E/Debug(9279): at libcore.io.IoBridge.open(IoBridge.java:448)
01-23 14:12:54.765: E/Debug(9279): at java.io.FileInputStream.<init>(FileInputStream.java:78)
01-23 14:12:54.765: E/Debug(9279): at iqualtech.skirr.Record_AudioPG.doAudioFileUpload(Record_AudioPG.java:293)
01-23 14:12:54.765: E/Debug(9279): at iqualtech.skirr.Record_AudioPG.stopRecording(Record_AudioPG.java:271)
01-23 14:12:54.765: E/Debug(9279): at iqualtech.skirr.Record_AudioPG.access$0(Record_AudioPG.java:265)
01-23 14:12:54.765: E/Debug(9279): at iqualtech.skirr.Record_AudioPG$4.onClick(Record_AudioPG.java:124)
01-23 14:12:54.765: E/Debug(9279): at android.view.View.performClick(View.java:3517)
01-23 14:12:54.765: E/Debug(9279): at android.view.View$PerformClick.run(View.java:14155)
01-23 14:12:54.765: E/Debug(9279): at android.os.Handler.handleCallback(Handler.java:605)
01-23 14:12:54.765: E/Debug(9279): at android.os.Handler.dispatchMessage(Handler.java:92)
01-23 14:12:54.765: E/Debug(9279): at android.os.Looper.loop(Looper.java:154)
01-23 14:12:54.765: E/Debug(9279): at android.app.ActivityThread.main(ActivityThread.java:4624)
01-23 14:12:54.765: E/Debug(9279): at java.lang.reflect.Method.invokeNative(Native Method)
01-23 14:12:54.765: E/Debug(9279): at java.lang.reflect.Method.invoke(Method.java:511)
01-23 14:12:54.765: E/Debug(9279): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:809)
01-23 14:12:54.765: E/Debug(9279): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)
01-23 14:12:54.765: E/Debug(9279): at dalvik.system.NativeStart.main(Native Method)
01-23 14:12:54.765: E/Debug(9279): Caused by: libcore.io.ErrnoException: open failed: ENOENT (No such file or directory)
01-23 14:12:54.765: E/Debug(9279): at libcore.io.Posix.open(Native Method)
01-23 14:12:54.765: E/Debug(9279): at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110)
01-23 14:12:54.765: E/Debug(9279): at libcore.io.IoBridge.open(IoBridge.java:432)
01-23 14:12:54.765: E/Debug(9279): ... 16 more
01-23 14:12:54.766: D/AndroidRuntime(9279): Shutting down VM
01-23 14:12:54.766: W/dalvikvm(9279): threadid=1: thread exiting with uncaught exception (group=0x40e14258)
01-23 14:12:54.771: E/AndroidRuntime(9279): FATAL EXCEPTION: main
01-23 14:12:54.771: E/AndroidRuntime(9279): java.lang.NullPointerException
01-23 14:12:54.771: E/AndroidRuntime(9279): at iqualtech.skirr.Record_AudioPG.doAudioFileUpload(Record_AudioPG.java:342)
01-23 14:12:54.771: E/AndroidRuntime(9279): at iqualtech.skirr.Record_AudioPG.stopRecording(Record_AudioPG.java:271)
01-23 14:12:54.771: E/AndroidRuntime(9279): at iqualtech.skirr.Record_AudioPG.access$0(Record_AudioPG.java:265)
01-23 14:12:54.771: E/AndroidRuntime(9279): at iqualtech.skirr.Record_AudioPG$4.onClick(Record_AudioPG.java:124)
01-23 14:12:54.771: E/AndroidRuntime(9279): at android.view.View.performClick(View.java:3517)
01-23 14:12:54.771: E/AndroidRuntime(9279): at android.view.View$PerformClick.run(View.java:14155)
01-23 14:12:54.771: E/AndroidRuntime(9279): at android.os.Handler.handleCallback(Handler.java:605)
01-23 14:12:54.771: E/AndroidRuntime(9279): at android.os.Handler.dispatchMessage(Handler.java:92)
01-23 14:12:54.771: E/AndroidRuntime(9279): at android.os.Looper.loop(Looper.java:154)
01-23 14:12:54.771: E/AndroidRuntime(9279): at android.app.ActivityThread.main(ActivityThread.java:4624)
01-23 14:12:54.771: E/AndroidRuntime(9279): at java.lang.reflect.Method.invokeNative(Native Method)
01-23 14:12:54.771: E/AndroidRuntime(9279): at java.lang.reflect.Method.invoke(Method.java:511)
01-23 14:12:54.771: E/AndroidRuntime(9279): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:809)
01-23 14:12:54.771: E/AndroidRuntime(9279): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)
01-23 14:12:54.771: E/AndroidRuntime(9279): at dalvik.system.NativeStart.main(Native Method)
答案 0 :(得分：1)
我认为你正在尝试录制，保存到sccard然后上传到服务器，对吗？
然后，为什么不尝试使用FileObserver呢？使用FileObserver，您可以侦听目录中的任何文件操作，获取最后添加的文件（及其元数据），然后使用服务上传。
// set up a file observer to watch this directory on sd card
observer = new FileObserver(pathToWatch) {
@Override
public void onEvent(int event, String file) {
if(event == FileObserver.CREATE && !file.endWith(".mp4")){
Log.d(TAG, "File created [" + pathToWatch + file + "]");
Toast.makeText(getBaseContext(), file + " was saved!",Toast.LENGTH_LONG).show();
// upLoadFileToServer();
}
}
};
observer.startWatching(); //START OBSERVING
答案 1 :(得分：1)
这是你需要做的，就像你调用getFileName()的方法一样，它实际上通过添加当前时间和日期来实现文件名，所以第一次调用时，它会告诉你{ {1}}当您尝试通过01-01-2014 12-12-20.mp4上传文件后20秒录制时，它再次调用该方法并返回续订的文件名{{1} }秒后，即doUploadFile(getFileName())。所以这是你两次调用同一个方法的问题，只需使用一次，这是你的最终代码。
20