Error in Json Android

Question

When i call an webservice i receive response in json format.The app works fine but when I receive json like { "NewDataSet": }} my app runs into catch statement and I m getting error like this - org.json.JSONException: Expected literal value at character 16 of { "NewDataSet": }}

Code to parse json

 protected void onPostExecute(String s) {
 super.onPostExecute (s);
 try {
// jsonObject = new JSONObject (s);
 String response=s.trim ();
 jsonObject = new JSONObject (response);
 if (NewDataSet == null) {
 Toast.makeText (Login.this, "error", Toast.LENGTH_SHORT).show ();
 }
 NewDataSet = jsonObject.getJSONObject ("NewDataSet");
 Table = NewDataSet.getJSONObject ("Table");
 String User_ID = Table.getString ("User_ID");
 String Vendor_IEntity_Code = Table.getString ("Vendor_IEntity_Code");
 String Vendor_Name = Table.getString ("Vendor_Name");
 SettingPreference.setUserId (Login.this, User_ID);
 SettingPreference.setVendorId (Login.this, Vendor_IEntity_Code);
 SettingPreference.setVendorName (Login.this, Vendor_Name);
 Log.e ("Json response", "" + User_ID + "" + Vendor_IEntity_Code + "" + Vendor_Name);
 } catch (JSONException e) {
 e.printStackTrace ();
 }

• SMR: can you post the whole JSON you recieved? and you can validate your JSON response using pro.jsonlint.org
• Shayan Pourvatan: your json is not valid
• SMR: that is not a valid JSON. it is supposed to throw exception.
• Anuj: means i will get an error?? or else how to parse it cos when NewDataSet = blanks this means user is not authenticated
• Hardik Joshi: Use GSON instead of JSONParser.

Answer 1

Your JSON is simply not valid. You need to assign a value to 'NewDataSet'. If you want this to be empty you can set the value to an empty String like ""

{ "NewDataSet": ""}

to retrieve this data you can use:

String result = jsonObject.getString("NewDataSet");

• Anuj: {"success":"0"} I have this json nw how do i parse it to get the value of success
• TmKVU: @user3667909 I have edited my answer. Note that you can also put integers in json objects: {"success":0} and retrieve it with jsonObject.getInt("success");