@Override
protected String doInBackground(String... params)
{
    HttpClient httpclient = new DefaultHttpClient();
    HttpPost httppost = new HttpPost(params[0]);
    try {
        HttpResponse response = httpclient.execute(httppost);
        jsonResult = inputStreamToString(
        response.getEntity().getContent()).toString();
    }
    catch (ClientProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
 }