Getting Json exception for a string

Question

I am calling an async task which returns a json object which has result,message as a string and result as cost.

Though it shows result,message string in the response object it shows json exception as no value for result.

Asynctask

public class SearchPostsAsyncTask extends AsyncTask<String, Void, JSONObject> {
    String api;
    JSONObject jsonParams;
    Context mContext;
    private SearchPostsCallBack searchPostsCallBack;
    private ProgressDialog loadingDialog;
    private Snackbar snackbar;
    private LinearLayout parentLayout;
    private ArrayList<PostDelivery> list;
    private JSONArray listsArray;
    private JSONObject jsonObject;

    public SearchPostsAsyncTask(Context context, LinearLayout linearLayout,SearchPostsCallBack searchPostsCallBack) {

        this.mContext = context;
        this.searchPostsCallBack = searchPostsCallBack;
        this.parentLayout = linearLayout;

    }

    public interface SearchPostsCallBack {
        void doPostExecute(ArrayList<PostDelivery> list);
    }

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

        loadingDialog = new ProgressDialog(mContext);

        if (!isOnline()) {

            snackbar = Snackbar.make(parentLayout, R.string.check_network, Snackbar.LENGTH_LONG);
            snackbar.show();
        } else {
            loadingDialog.show(mContext, null,mContext.getString(R.string.wait));
        }

    }

    @Override
    protected JSONObject doInBackground(String... params) {
        try {
            api = mContext.getResources().getString(R.string.url) + "requestlist";

            jsonParams = new JSONObject();
            jsonParams.put("st_lati", params[0]);
            jsonParams.put("st_longi", params[1]);
            jsonParams.put("ed_lati", params[2]);
            jsonParams.put("ed_longi", params[3]);
            jsonParams.put("pt_date", params[4]);


            ServerRequest request = new ServerRequest(api, jsonParams);
            return request.sendPostRequest(params[5]);

        } catch (JSONException je) {
            Log.e("exception",je.toString());
            return Excpetion2JSON.getJSON(je);
        } catch (Exception ue) {
            return Excpetion2JSON.getJSON(ue);
        }
    } 

    @Override
    protected void onPostExecute(JSONObject response) {
        super.onPostExecute(response);
        if (loadingDialog.isShowing())
            loadingDialog.dismiss();
        try {
            list = new ArrayList<>();


                    String result = response.getString("result");
                    String message = response.getString("message");
                    if (result.equals("1")) {


                        listsArray = response.getJSONArray("cost");

                        for (int j = 0; j < listsArray.length(); j++) {

                            jsonObject = listsArray.getJSONObject(j);


                    PostDelivery postDelivery = new PostDelivery();

                    postDelivery.setmPt_id(jsonObject.getString("pt_id"));
                    postDelivery.setmPt_name(jsonObject.getString("pt_name"));
                    postDelivery.setmPtDetail(jsonObject.getString("pt_detail"));
                    postDelivery.setmPtStartLoc(jsonObject.getString("pt_start_loc"));
                    postDelivery.setmPtEndLoc(jsonObject.getString("pt_end_loc"));
                    postDelivery.setmPtDate(jsonObject.getString("pt_date"));


                    list.add(postDelivery);

                    searchPostsCallBack.doPostExecute(list);

                }
            }

                snackbar = Snackbar.make(parentLayout, "sorry", Snackbar.LENGTH_LONG);

                snackbar.show();


    }catch (JSONException je) {
            je.printStackTrace();
            //  Toast.makeText(getApplicationContext(), je.getMessage(), Toast.LENGTH_LONG).show();
        }
    } 

}

Exception and response :

D/ServerResponse: {"result":1,"message":"Success","cost":[{"pt_id":"5","ur_id":"2","pt_name":"mobile","pt_detail":"samsung mobile ","pt_size":"0","pt_weight":"150","pt_start_loc":"nashik"}]}
06-04 19:26:06.284 7129-7129/com.carryapp W/System.err: org.json.JSONException: No value for result

What is going wrong here? Please help.Thank you..

result is an integer .see ,no doublequotes !! – pz64_ Jun 04 '17 at 14:24 — pz64_, Jun 04 '17 at 14:24

score 0 · Answer 1 · answered Jun 04 '17 at 14:18

0

In your ServerResponse {"result":1}, the "result" is int, and you use String result = response.getString("result"), you should use getInt.

answered Jun 04 '17 at 14:18

helolu

94
1
4

I had tried int first of all for that too I am getting same exception. – Sid Jun 04 '17 at 18:51

score 0 · Answer 2 · answered Jun 04 '17 at 14:37

0

{"result":1,"message":"Success","cost":[{"pt_id":"5","ur_id":"2","pt_name":"mobile","pt_detail":"samsung mobile ","pt_size":"0","pt_weight":"150","pt_start_loc":"nashik"}]}

Form your attached response, it seems that the value of result is an int value and you are trying to get this value using:

String result = response.getString("result"); // WRONG

Try using:

int result = response.getInt("result");

answered Jun 04 '17 at 14:37

Ferdous Ahamed

21,438
5
52
61

I had tried int first of all for that too I am getting same exception. – Sid Jun 04 '17 at 18:51
Put some log in `onPostExecute` to check the response before getting value from it. – Ferdous Ahamed Jun 04 '17 at 19:37

Getting Json exception for a string

2 Answers2