我正在尝试将音频文件和一些文本发送到PHP服务器。我能够将音频文件发送到服务器，但是无法发送文本。
我已经看完这篇文章Sending POST data in Android，并添加了用于发送文本的代码，但是当我尝试上传时，我的应用程序会崩溃。
public class UploadTasks {
private static int serverResponseCode = 0;
private static ProgressDialog dialog = null;
//private static String upLoadServerUri =
private static String filepath = null;
public static int uploadFile(final String sourceFileUri, Context context, String data) {
SharedPreferences prefs = context.getSharedPreferences(SHARED_PREF_NAME, MODE_PRIVATE);
HttpURLConnection conn = null;
DataOutputStream dos = null;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1024 * 1024;
OutputStream out = null;
File sourceFile = new File(sourceFileUri);
if (!sourceFile.isFile()) {
Log.e("uploadFile", "Source File not exist :" + filepath);
return 0;
} else {
try {
FileInputStream fileInputStream = new FileInputStream(
sourceFile);
URL url = new URL(prefs.getString(SHARED_PREF_KEY_URL, null));
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("ENCTYPE", "multipart/form-data");
conn.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
conn.setRequestProperty("file", sourceFileUri);
out = new BufferedOutputStream(conn.getOutputStream());
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(out, "UTF-8"));
writer.write(data);
writer.flush();
writer.close();
out.close();
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"file\";filename=\""
+ sourceFileUri + "\"" + 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);
// Responses from the server (code and message)
serverResponseCode = conn.getResponseCode();
String serverResponseMessage = conn.getResponseMessage();
Log.i("uploadFile", "HTTP Response is : "
+ serverResponseMessage + ": " + serverResponseCode);
// close the streams //
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
ex.printStackTrace();
Log.e("Upload file to server", "error: " + ex.getMessage(), ex);
} catch (Exception e) {
dialog.dismiss();
e.printStackTrace();
Log.e("Upload file to server Exception",
"Exception : " + e.getMessage(), e);
}
return serverResponseCode;
}
}
}
以下是我得到的日志记录
2019-07-04 19:32:17.784 32428-32699/com.example.kontrol.mydictation E/Upload file to server Exception: Exception : closed
java.io.IOException: closed
at com.android.okhttp.okio.RealBufferedSink$1.write(RealBufferedSink.java:190)
at java.io.DataOutputStream.writeBytes(DataOutputStream.java:276)
at com.example.kontrol.mydictation.upload.UploadTasks.uploadFile(UploadTasks.java:84)
at com.example.kontrol.mydictation.upload.UploadIntentService.onHandleIntent(UploadIntentService.java:18)
at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:68)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:163)
at android.os.HandlerThread.run(HandlerThread.java:61)