private ActionResult parseJSONResponse(JSONObject response) {
   if (response == null) {
     ActionError error = new ActionError(ErrorCode.SERVER_ERROR, "服务器未返回结果");
     return new ActionResult(error);
   }
   if (!response.has("response")) {
     ActionError error = new ActionError(ErrorCode.SERVER_ERROR, "服务器返回空,请稍候重试");
     return new ActionResult(error);
   }
   try {
     response = response.getJSONObject("response");
     if (!response.has("flag")) {
       ActionError error = new ActionError(ErrorCode.SERVER_ERROR, "服务器未返回响应代码");
       return new ActionResult(error);
     }
     int flag = response.getInt("flag");
     if (flag != 1) {
       String errorMessage = "请求失败";
       if (response.has("msg")) {
         errorMessage = response.getString("msg");
       }
       ActionError error = new ActionError(ErrorCode.APPLICATOIN_ERROR, errorMessage);
       return new ActionResult(error);
     }
     if (mSecurity && response.has("signature") && response.has("timestr")) {
       Log.d(tag, "Verifying the data...");
       String signature = response.getString("signature");
       String timeStr = response.getString("timestr");
       String bodyStr = "";
       JsonElement body = mGsonObject.get("response").getAsJsonObject().get("body");
       if (body != null) {
         bodyStr = body.toString();
       }
       //                String key = PreferenceUtil.getString(mAppContext,
       // Constants.APP_BINDING_KEY, Constants.APP_DEFAULT_KEY);
       String clientSignature = Utils.md5(flag + bodyStr + timeStr + getEncryptKey());
       if (!clientSignature.equals(signature)) {
         Log.e(tag, "Verification failed, the data might be modified!!!");
         ActionError error = new ActionError(ErrorCode.SECURITY_ERROR, "数据校验未通过!!!");
         return new ActionResult(error);
       }
     }
     if (!response.has("body")) {
       return new ActionResult("");
     }
     JSONObject body = response.getJSONObject("body");
     return new ActionResult(createRespObject(body));
   } catch (JSONException e) {
     Log.e(tag, "Failed to parse Json response for request: " + mServiceId, e);
     ActionError error = new ActionError(ErrorCode.SERVER_ERROR, "服务器数据格式不对: ");
     return new ActionResult(error);
   }
 }
 private JsonObject createJSONRequest() throws JSONException, UnsupportedEncodingException {
   JsonObject request = new JsonObject();
   String timeStr = Utils.formatDate("yyyy-MM-dd HH:mm:ss", new Date());
   JSONObject actionBody = removeInvalidParas(getRequestBody(timeStr));
   JsonObject requestBody = new JsonParser().parse(actionBody.toString()).getAsJsonObject();
   request.add("timestr", new JsonPrimitive(timeStr));
   request.add(
       "signature",
       new JsonPrimitive(Utils.md5(requestBody.toString() + timeStr + getEncryptKey())));
   request.add("body", encodeBody(requestBody));
   JsonObject wrapper = new JsonObject();
   wrapper.add("request", request);
   return wrapper;
 }