アップロード複数のファイルの非同期のHTTPアンドロイドが、成功コールバックは

Question

は、私は次のリンクを試してみまし受けれることは決してありません：

https://stackoverflow.com/a/35465318/787399

しかし、私はするonSuccessコールバックを受けることはありません。

その他：複数のファイル[画像]をアップロードすると、1つのファイルのみがアップロードされ、もう1つのファイルは空白になります。

その他：通常のHTTPClient APIを使用しているときに、反対側のファイルが重複していたため、loopjからこのライブラリに切り替えました。しかし、このライブラリには一連の問題もあります。

Answer 1

ここはあなたを助けるコードです。

public class uploadFiles extends AsyncTask<Void, Void, String> { 
     private final ProgressDialog dialog = new ProgressDialog(
       PtoPPostActivity.this); 
     protected void onPreExecute() { 
      this.dialog.setMessage("Loading..."); 
      this.dialog.setCancelable(false); 
      this.dialog.show(); 
     } 
     @Override 
     protected String doInBackground(Void... params) { 
      String result=uploadFile(""); // inside the method paste your file uploading code 
      return result; 
     } 
     protected void onPostExecute(String result) { 
      // Here if you wish to do future process for ex. move to another activity do here 
      if (dialog.isShowing()) { 
       dialog.dismiss(); 
      } 
      showDialog(PtoPPostActivity.this,result); 
     } 
    } 

public String uploadFile(String req) { 
     // TODO Auto-generated method stub 

     String serverResponseMessage = ""; 
     String response_return = ""; 
     Log.d("first str is:", req); 

     URL imageUrl = null; 
     try { 
      imageUrl = new URL(Constant.WEBSERVICE_URL); // get WebService_URL 
     } catch (MalformedURLException e1) { 
      // TODO Auto-generated catch block 
      e1.printStackTrace(); 
     } 

     String lineEnd = "\r\n"; 
     String twoHyphens = "--"; 
     String boundary = "---------------------------14737809831466499882746641449"; 
     // generating byte[] boundary here 

     HttpURLConnection conn = null; 
     DataOutputStream outputStream = null; 

     int bytesRead, bytesAvailable, bufferSize; 
     byte[] buffer; 
     int maxBufferSize = 1 * 1024 * 1024; 

     try { 
      int serverResponseCode; 
      conn = (HttpURLConnection) imageUrl.openConnection(); 
      conn.setConnectTimeout(30000); 
      conn.setReadTimeout(30000); 
      conn.setDoOutput(true); 
      conn.setDoInput(true); 
      conn.setRequestMethod("POST"); 
      conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary); 

      // json String request 
      outputStream = new DataOutputStream(conn.getOutputStream()); 

      outputStream.writeBytes(twoHyphens + boundary + lineEnd); 
      outputStream.writeBytes("Content-Disposition: form-data; name=\"json\"" + lineEnd); 
      outputStream.writeBytes("Content-Type: text/plain;charset=UTF-8" + lineEnd); 
      outputStream.writeBytes("Content-Length: " + req.length() + lineEnd); 
      outputStream.writeBytes(lineEnd); 
      outputStream.writeBytes(req + lineEnd); 
      outputStream.writeBytes(twoHyphens + boundary + lineEnd); 

      // image 
      Log.i("images path==>", "" + imageArry); // get photo 
      // local path 

      for (int i = 0; i < imageArry.size(); i++) { 
       try { 
        String filePath = imageArry.get(i).get("uploadedPath"); 
        Log.d("filePath==>", imageArry.get(i).get("uploadedPath") + ""); 

        ////////////////////////////////////////////////// 
        // Bitmap original = BitmapFactory.decodeFile(mFileTemp.getPath()); 
        Bitmap original = BitmapFactory.decodeFile(filePath); 
        if (original != null) { 
         Bitmap newBitmap = original; 

         ByteArrayOutputStream stream = new ByteArrayOutputStream(); 
         newBitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream); 
         byte[] bitmapdata = stream.toByteArray(); 

         File cacheDir = PtoPPostActivity.this.getCacheDir(); 
         File f = new File(cacheDir, "temp" + i + ".jpeg"); 
         //write the bytes in file 
         FileOutputStream fos = new FileOutputStream(f); 
         fos.write(bitmapdata); 
         FileInputStream fileInputStream = new FileInputStream(f); 
         String lastOne = "temp"; 
         ///////////////////////////////////////////// 

         outputStream.writeBytes(twoHyphens + boundary + lineEnd); 

         outputStream.writeBytes("Content-Disposition: attachment; name=\"imagePath" + i + "\"; filename=" + lastOne + i + ".jpeg" + lineEnd); // pass key & value of photo 

         outputStream.writeBytes("Content-Type: application/octet-stream" + lineEnd); 
         outputStream.writeBytes(lineEnd); 

         bytesAvailable = fileInputStream.available(); // photo size bytes 
         bufferSize = Math.min(bytesAvailable, maxBufferSize); 
         buffer = new byte[bufferSize]; 

         // Read file 
         bytesRead = fileInputStream.read(buffer, 0, bufferSize); 

         while (bytesRead > 0) { 
          outputStream.write(buffer, 0, bufferSize); 

          bytesAvailable = fileInputStream.available(); 
          bufferSize = Math.min(bytesAvailable, maxBufferSize); 
          bytesRead = fileInputStream.read(buffer, 0, bufferSize); 
         } 

         outputStream.writeBytes(lineEnd); 

         Log.d("posttemplate", "connection outputstream size is " + outputStream.size()); 
         fileInputStream.close(); 
        } 
       } catch (OutOfMemoryError o) { 
        continue; 
       } 
      } 

      outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd); 

      serverResponseCode = conn.getResponseCode(); 
      serverResponseMessage = conn.getResponseMessage(); 

      InputStream is = conn.getInputStream(); 
      BufferedReader rd = new BufferedReader(new InputStreamReader(is)); 
      String line; 
      StringBuffer response1 = new StringBuffer(); 
      while ((line = rd.readLine()) != null) { 
       response1.append(line); 
       response1.append('\r'); 
      } 

      rd.close(); 
      response_return = response1.toString(); 

      Log.d("posttemplate", "server response code " + serverResponseCode); 
      Log.d("posttemplate", "server response message " 
        + serverResponseMessage); 
      outputStream.flush(); 
      outputStream.close(); 
      conn.disconnect(); 

     } catch (MalformedURLException e) { 
      Log.d("posttemplate", "malformed url", e); 
      // Toast.makeText(getApplicationContext(),e.toString(), 
      // Toast.LENGTH_LONG).show(); 
      // TODO: catch exception; 
     } catch (IOException e) { 
      Log.d("posttemplate", "ioexception", e); 
      // Toast.makeText(getApplicationContext(),e.toString(), 
      // Toast.LENGTH_LONG).show(); 
      // TODO: catch exception 
     } 
     Log.d("response--->", "****" + response_return); 
     global_response = response_return; 
     return response_return; 
    }