JSONパラメータを使用してHttpURLConnectionを使用してサーバーにリクエストを送信する方法

Question

イメージをアップロードするためにHttpURLConnectionを使用してサーバーにjsonリクエストを送信する必要があります。 HttpClientはうまく動作します。しかし、私はここで

... HttpURLConnectionの持つ要求とMultipartEntity.any 1人の助け私を作りたいのHttpClientのコードです：

public class MultiPartRequest extends AsyncTask<Object, Integer, JSONObject> { 

private AsyncHttpCallback listener; 
private final String TAG = "HTTP_MULTIPART"; 
private Activity activity; 

public MultiPartRequest(Activity activity) { 
    this.activity = activity; 
} 

@Override 
protected void onPreExecute() { 
    super.onPreExecute(); 
} 

@Override 
protected JSONObject doInBackground(Object... inputParams) { 
    String requestUrl = (String) inputParams[0]; 
    JSONObject multipartParams = (JSONObject) inputParams[1]; 
    HashMap<String, Object> requestObject = (HashMap<String, Object>) inputParams[2]; 
    HttpClient httpClient = new DefaultHttpClient(); 
    JSONObject finalResult = new JSONObject(); 
    try { 
     finalResult = new JSONObject("{\"error\":true,\"message\":\"Something went wrong\"}"); 
     HttpPost httpPost = new HttpPost(requestUrl); 
     StringEntity entity = new StringEntity(multipartParams.toString()); 
     entity.setContentType("application/json"); 
     httpPost.setEntity(entity); 
     // httpPost.setParams(multipartParams); 
     MultipartEntity multipartEntity = new MultipartEntity(); 

     for (Entry<String, Object> obj : requestObject.entrySet()) { 
      String fileName = obj.getKey(); 
      Log.d("Multipart", fileName); 
      if (fileName.equalsIgnoreCase("data")) { 
       Log.d("objectdata", obj.getValue().toString()); 
       multipartEntity.addPart(fileName, (StringBody) obj.getValue()); 
      } else { 
       multipartEntity.addPart(fileName, (FileBody) obj.getValue()); 
      } 
     } 

     httpPost.setEntity(multipartEntity); 
     HttpResponse response = httpClient.execute(httpPost); 

     BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "UTF-8")); 
     StringBuilder builder = new StringBuilder(); 

     for (String line = null; (line = reader.readLine()) != null;) { 
      builder.append(line).append("\n"); 
     } 

     JSONTokener tokener = new JSONTokener(builder.toString()); 
     finalResult = new JSONObject(tokener); 

    } catch (ClientProtocolException e) { 
     e.printStackTrace(); 
    } catch (IOException e) { 
     e.printStackTrace(); 
    } catch (JSONException e) { 
     e.printStackTrace(); 
    } 

    return finalResult; 
} 

@Override 
public void onPostExecute(JSONObject result) { 
    Log.d(TAG, "The response object is: " + result.toString()); 

    try { 
     String errorMsg = JSONHandler.getStringFromJSONObject(result, "message"); 
     if (errorMsg.equalsIgnoreCase("Authentication problem with the token provided") || JSONHandler.getIntFromJSONObject(result, "code") == 5100) { 
      MyApplication.displayToast(errorMsg); 

      Intent intent = activity.getBaseContext().getPackageManager().getLaunchIntentForPackage(activity.getBaseContext().getPackageName()); 
      intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
      intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK); 
      activity.startActivity(intent); 
      return; 
     } 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 
    if (result.has("error")) { 
     listener.errorCallback(result); 
    } else { 
     listener.successCallback(result); 
    } 
} 

public void setOnResultsListener(AsyncHttpCallback listener) { 
    this.listener = listener; 
} } 

Answer 1

使用バレーボールサーバーに画像を送信します。 //javatechig.com/snippets/upload-image-to-：

あなたは Android Volley Library: How to send an image to server?