Trouble in parsing Json Data

Question

I am trying to parse a JSON and fetch data When I tried to fetch data The result seems to be xml document , but in JSONLint and postman it looks fine

The Code I am using is...

private class DownloadJSON extends AsyncTask<Void, Void, Void> {

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        /*mProgressDialog = new ProgressDialog(this,R.style.CustomDialog);*/

         mProgressDialog = new ProgressDialog(getActivity(),R.style.MyTheme);
         mProgressDialog.setCancelable(false);
         mProgressDialog.setProgressStyle(android.R.style.Widget_ProgressBar_Small);
         mProgressDialog.show();

    }

    @Override
    protected Void doInBackground(Void... params) {

         HttpParams params1 = new BasicHttpParams();
         HttpProtocolParams.setVersion(params1, HttpVersion.HTTP_1_1);
         HttpProtocolParams.setContentCharset(params1, "UTF-8");
         params1.setBooleanParameter("http.protocol.expect-continue", false);
         HttpClient httpclient = new DefaultHttpClient(params1);

         HttpPost httppost = new HttpPost("");
         try{
          HttpResponse http_response= httpclient.execute(httppost);

          HttpEntity entity = http_response.getEntity();
          String jsonText = EntityUtils.toString(entity, HTTP.UTF_8);
          Log.i("Response", jsonText);
            jsonobject = new JSONObject(jsonText); 

          }catch(Exception e){

          }




        return null;
    }

    @Override
    protected void onPostExecute(Void args) {

        mProgressDialog.dismiss();
    }
}

The Response I am getting is

          09-02 16:03:03.556: I/Response(4575): ?<?xml version="1.0" encoding="utf-8"?>

             09-02 16:03:03.556: I/Response(4575): <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0               Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    09-02 16:03:03.556: I/Response(4575): <html xmlns="http://www.w3.org/1999/xhtml">

      09-02 16:03:03.556: I/Response(4575):   <head>

      09-02 16:03:03.556: I/Response(4575):     <title>Service</title>

      09-02 16:03:03.556: I/Response(4575):     <style>BODY { color: #000000; background-color:         white; font-family: Verdana; margin-left: 0px; margin-top: 0px; } #content { margin-left: 30px; font-   size: .70em; padding-bottom: 2em; } A:link { color: #336699; font-weight: bold; text-decoration:   underline; } A:visited { color: #6699cc; font-weight: bold; text-decoration: underline; } A:active {   color: #336699; font-weight: bold; text-decoration: underline; } .heading1 { background-color: #003366; border-bottom: #336699 6px solid; color: #ffffff; font-family: Tahoma; font-size: 26px; f ont-weight: normal;margin: 0em 0em 10px -20px; padding-bottom: 8px; padding-left: 30px;padding-top: 16px;} pre { font-size:small; background-color: #e5e5cc; padding: 5px; font-family: Courier New; margin-top: 0px; border: 1px #f0f0e0 solid; white-space: pre-wrap; white-space: -pre-wrap; word-wrap: break-word; } table { border-collapse: collapse; border-spacing: 0px; font-family: Verdana;} table th { border-right: 2px white solid; border-bottom: 2px white solid; font-weight: bold; background-color: #cecf9c;} table td { border-right: 2px white solid; border-bottom: 2px white solid; background-color: #e5e5cc;}</style>

     09-02 16:03:03.556: I/Response(4575):   </head>

     09-02 16:03:03.556: I/Response(4575):   <body>

       09-02 16:03:03.556: I/Response(4575):     <div id="content">

      09-02 16:03:03.556: I/Response(4575):       <p class="heading1">Service</p>

      09-02 16:03:03.556: I/Response(4575):       <p xmlns="">Method not allowed. 

Please see the       <a rel="help-page" href="http://com/API.svc/help">service help page</a> for    constructing valid requests to the service.</p>

09-02 16:03:03.556: I/Response(4575):     </div>

09-02 16:03:03.556: I/Response(4575):   </body>

09-02 16:03:03.556: I/Response(4575): </html>

Everything works fine on IOS and parse result is perfect. I tried few other methods too but response is the same, It will be great if somebody help me to sort out this trouble

You are trying to POST instead of GET. This should fix the issue. Either that, or try removing the extra parameters you set on the call - basically it works fine when pasted into Chrome. — Richard Le Mesurier, Sep 02 '14 at 10:46
You're getting a server error. Method you're requesting is not allowed. Check that you use proper method name — Alexander Zhak, Sep 02 '14 at 10:46
I would suggest using Android's Volley. http://developer.android.com/training/volley/index.html Make sure you specify the request-method as `GET`, and include headers to be `Accept: application/json`. — nightfixed, Sep 02 '14 at 10:50

score 1 · Accepted Answer · answered Sep 02 '14 at 10:56

1

Your response is actually an XML error message complaining about used HTTP method POST. Link you provided works fine in the browser so replacing HttpPost with HttpGet should work.

By the way, Apache framework is not recommended starting from Android 2.3. For later version you should use HttpUrlConnection or switch to one of these libraries: Retrofit or Volley that will handle it for you.

answered Sep 02 '14 at 10:56

Damian Petla

8,963
5
44
47

Thanks for explaining the finer points of my comment. I didn't have the time to go into full detail at the moment. – Richard Le Mesurier Sep 02 '14 at 11:04

score 0 · Answer 2 · edited Jun 20 '20 at 09:12

Make this class JSONParser.java:

public class JSONParser {

    static String url;

    static InputStream is;
    static String result;
    static JSONObject jsonObject;

    static HttpClient httpClient;
    static HttpPost httpPost;

    static List<NameValuePair> pairs;

    static HttpResponse response;
    static HttpEntity entity;

    private static void init() {
        // TODO Auto-generated constructor stub
        is = null;
        result = "";
        jsonObject = new JSONObject();
        httpPost = null;
        httpClient = new DefaultHttpClient();
    }

    public static String getResult(InputStream is)  {
        // TODO Auto-generated method stub
        BufferedReader reader;
        StringBuilder stringBuilder = null;

        try {
            reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);

            stringBuilder = new StringBuilder();
            String line = null;

            while ((line = reader.readLine()) != null) {
                stringBuilder.append(line + "\n");
            }
            is.close();

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return stringBuilder.toString();    
    }

    public static JSONObject getJSONData() {
        // TODO Auto-generated method stub
        try{
            init();

            url = "http://almithaq.mawaqaademo11.com/API.svc/getAlbumPhotosList";

            httpPost = new HttpPost(url.toString());

            response = httpClient.execute(httpPost);

            entity = response.getEntity();

            is = entity.getContent();

            /* Convert response to string */
            result = getResult(is);

            jsonObject = new JSONObject(result);

        }catch(ClientProtocolException e){
            Log.e(TAG, "Error in Client Protocol : "+e.toString());
        }catch(JSONException e){
            Log.e(TAG, "Error Parsing data "+e.toString());
        }catch(Exception e){
            Log.e(TAG, "Error in HTTP Connection : "+e.toString());
        }
        return jsonObject;
    }
}

and Just get JSON Using:

JSONParser.getJSONData();

in doInBackground()

May it will work...

If Any Question Ping Me...

Trouble in parsing Json Data

2 Answers2

Make this class JSONParser.java: