Json Parsing object inside Object getting error

Question

-- I know parsing, i have successfully parsed below data, but when web-service is upgraded i need to parse object inside object. - I tried many example but getting error.

Code for Parsing :

private final String KEY_SUCCESS = "status";
    private final String KEY_MSG = "Message";
    private final String KEY_MSG1 = "Message";
    //   private final String KEY_AddressList = "addressList";
    private final String KEY_USERINFO = "user_info";
    ArrayList<HashMap<String, String>> arraylist;

    private final String KEY_DATA = "data";
    private final String KEY_USERDATA = "userdata";

public ArrayList<HashMap<String, String>> getList(String response) {
        try {
            JSONObject jsonObject = new JSONObject(response);
            if (jsonObject.getString(KEY_SUCCESS).equals("true")) {

                arraylist = new ArrayList<HashMap<String, String>>();
                JSONArray jsonArray = jsonObject.getJSONArray("data");
                for (int i = 0; i < jsonArray.length(); i++) {

                    HashMap<String, String> map = new HashMap<String, String>();
                    JSONObject obj = jsonArray.getJSONObject(i);
                    //  JSONObject job = obj.getJSONObject("User");

                    Log.d("obj", obj.toString());


                    String user_id = obj.getString(Constants.Params.ID);
                    String createdate = obj.getStringAndyConstants.Params.CREATEDDATE);
                    String postImage = obj.getString(Constants.Params.IMAGE);



                    map.put(AndyConstants.Params.ID, user_id);
                   map.put(AndyConstants.Params.CREATEDDATE, createdate);
                    map.put(AndyConstants.Params.IMAGE, postImage);

   JSONObject objectDetails2 = obj.getJSONObject(KEY_DATA);

                    JSONArray jsonArrayUser = objectDetails2.getJSONArray("userdata");
                    for (int j = 0; j < jsonArrayUser.length(); j++) {
                        HashMap<String, String> mapUser = new HashMap<String, String>();
                        JSONObject businessObject = jsonArrayUser.getJSONObject(j);
                        Log.d("obj", businessObject.toString());
                    }


                    Log.d("map", map.toString());
                    arraylist.add(map);

                }

            }

        } catch (JSONException e) {
            e.printStackTrace();
        }
        return arraylist;
    }

Error Log :

org.json.JSONException: No value for data


E/array: []
E/adapter: []

Json :

{
    "status": true,
    "message": "Successfully add Post",
    "data": [{

        "user_id": "46",
        "image": "",
        "createdate": "2016-05-11 06:05:12",
        "userdata": {
            "first_name": "Alpha",
            "last_name": "Gamma",
            "image": "http:\/\/abcd.net\/abcd\/uploads\/100520161005191462941615032.jpg"
        }
    }

you have used some Keys whose values are unknown like KEY_SUCCESS, KEY_DATA . please add those values and formate your code so that is easy to read — Shubhank
– Shubhank, Commented May 14, 2016 at 5:31
JsonArray jsonArray=new jsonArray(jsonObject.getString(""data)) than JsonObject newObj=jsonArray.getJsonObject(position); — Pramod mishra
– Pramod mishra, Commented May 14, 2016 at 5:33

Shubhank · Accepted Answer · 2016-05-14 06:03:19Z

1

You dont need this line

   JSONObject objectDetails2 = obj.getJSONObject(KEY_DATA);

and change

  JSONArray jsonArrayUser = objectDetails2.getJSONArray("userdata");

to

  JSONObject userData = obj.getJSONObject("userdata");
  String firstName = userData.getString("first_name");
  String lastName  = userData.getString("last_name");

As you can see from the JSON

"data":
     [{"user_id":"46",
        "image":"",
           "createdate":"2016-05-11 06:05:12",
           "userdata":{"first_name

data is having the object [ which denotes an Array while userData shows a { which is a JSONObject

edited May 14, 2016 at 6:03

answered May 14, 2016 at 5:36

Shubhank

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7 Comments

Nadia Over a year ago

JSONObject businessObject = jsonArrayUser.getJSONObject(j); What i have to do with this

Shubhank Over a year ago

first i would suggest to go to jsonlint.com and paste your json. it will process and show it indented with line break. edit your question and paste that so it is easy to explain

Nadia Over a year ago

can u plz help me with my code .. proper output. plz

Shubhank Over a year ago

what is the output you want ?

Nadia Over a year ago

i am getting object data successfully, but i want object userdata(everything inside userdata)

|

Ahmed M. Abed · Accepted Answer · 2016-05-14 06:00:53Z

0

I notice that your JSON has some errors. is this the complete Json response?

Because JSON response should be something like this:

{
    "status": true,
    "message": "Successfully add Post",
    "data": [{

        "user_id": "46",
        "image": "",
        "createdate": "2016-05-11 06:05:12",
        "userdata": {
            "first_name": "Alpha",
            "last_name": "Gamma",
            "image": "http:\/\/abcd.net\/abcd\/uploads\/100520161005191462941615032.jpg"
        }
    }]
}

You will notice that there is no close for [ after userdata in your Json.

answered May 14, 2016 at 6:00

Ahmed M. Abed

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