data={
    "request": {
       "type": "event_and_offer",
       "devicetype": "A"
    },
    "requestinfo": {
       "value": "offer"
      }
}

如何从排球plz帮助发布此请求

            JsonObjectRequest jsonObjReq = new JsonObjectRequest(
            Request.Method.POST,url, null   ,
            new Response.Listener<JSONObject>() {




                @Override
                public void onResponse(JSONObject response) {
                    Log.d(TAG, response.toString());

                    msgResponse.setText(response.toString());
                    hideProgressDialog();
                }
            }, new Response.ErrorListener() {

                @Override
                public void onErrorResponse(VolleyError error) {
                    VolleyLog.d(TAG, "Error: " + error.getMessage());
                    hideProgressDialog();
                }
            }) {

        /**
         * Passing some request headers
         * */
        @Override
        public Map<String, String> getHeaders() throws AuthFailureError {
            HashMap<String, String> headers = new HashMap<String, String>();
            headers.put("Content-Type", "application/x-www-form-urlencoded");
            return headers;
        }

js引用了我的jsson对象……我使我的jsson像这样.....

JSONObject jsonobject_one = new JSONObject();
    try {
        jsonobject_one.put("type", "event_and_offer");
        jsonobject_one.put("devicetype", "I");

        JSONObject jsonobject_TWO = new JSONObject();
        jsonobject_TWO.put("value", "event");
        jsonobject = new JSONObject();

        jsonobject.put("requestinfo", jsonobject_TWO);
        jsonobject.put("request", jsonobject_one);

        js = new JSONObject();
        js.put("data", jsonobject.toString());
        Log.e("created jsson", "" + js);

但是它没有响应值请怎么做