CODEWITHSUNDEEP
javaandroidjson
Adnan Quraishi
Adnan Quraishi

Reputation: 533

Unable to Getstring from jsonObject

I have this JSON string.

{
    "drtest": {
        "password":"dr123",
        "presence": {
            "lastSeen":1485992132269,
            "status":"offline"
         },
         "role":"Doctor",
         "speciality":"Physiotherapist",
         "token":"f80ve0sY6Ak:APA91bGLPlmy7b_iyqtW9ioG11TOx3xTB9BJgb1vvBK4YRo-28DyXWydg476TvjzaxyNB3kTTMn0BycEDm9UJHAPeoWzV-vFrwN46hg-GKSI6DH1s9zrH8h834c2whEdr12XqWN-4jrs"
     },
    "patient": {
         "password":"pat123",
         "presence": {
             "lastSeen":1486046501150,
             "status":"online"
         },
         "role":"Patient",
         "token":"f80ve0sY6Ak:APA91bGLPlmy7b_iyqtW9ioG11TOx3xTB9BJgb1vvBK4YRo-28DyXWydg476TvjzaxyNB3kTTMn0BycEDm9UJHAPeoWzV-vFrwN46hg-GKSI6DH1s9zrH8h834c2whEdr12XqWN-4jrs"
    }
}

Firstly I was keeping the track of doctor role, but now I have to keep track on speciality as well. However I am trying the code which supposed to work correct but it is not working as expected.

As you can see only one entity has speciality data and other does not contain the field of speciality. How can I parse speciality data if it is there and ignore if there's no speciality field in the JSON?

I am using this code :

    try {
        contactList.clear();
        JSONObject obj = new JSONObject(s);
        Iterator i = obj.keys();
        String key = "";

        while (i.hasNext()) {
            key = i.next().toString();
            JSONObject singleUser = (JSONObject) obj.get(key);
            String role = singleUser.get("role").toString();

            JSONObject singleUser2 = (JSONObject) obj.get(key);

            String tpesu= singleUser2.getString("speciality");

            // no success here? need help want this value...
            Log.e("specialittyyyyyyy",tpesu+"");

            JSONObject presence = singleUser.getJSONObject("presence");
            String status = presence.getString("status");

            if (!key.equals(UserDetails.username)) {
                if (role.equals("Doctor")) {
                    HashMap<String, String> docs = new HashMap<>();
                    docs.put("name", key);
                    docs.put("status", status);
                    Log.e("status ", status + "");
                    contactList.add(docs);
                }
            }
            totalUsers++;
        }
    } catch (JSONException e) {
        e.printStackTrace();
    }

Upvotes: 1

Views: 1335

Answers (3)

petey
petey

Reputation: 17140

Your singleUser & singleUser2 json objects are the same (drtest) since you are retrieving them by referencing them by the same key value. Instead let singleUser2 be retrieved by the next available key (singleUser2key=... in the example below)

JSONObject obj = new JSONObject("dd");
Iterator i = obj.keys();
String key = "";
while (i.hasNext()) {
    key = i.next().toString();
    String singleUser2key = i.next().toString();

    JSONObject singleUser = (JSONObject) obj.get(key);
    String role = singleUser.get("role").toString();

    JSONObject singleUser2 = (JSONObject) obj.get(singleUser2key);

    String tpesu= singleUser2.getString("speciality");
    // no success here ??? need help want this value...
    Log.e("specialittyyyyyyy",tpesu+"");

Upvotes: 0

ShibbyUK
ShibbyUK

Reputation: 1521

You can use the "has" function. i.e. if (singleUser2.has("speciality")) ...

Upvotes: 1

Mike
Mike

Reputation: 1343

Enclose singleUser as such to avoid format or null pointer exceptions

if(singleUser2.has("speciality")) {
    tpesu = singleUser2.getString("speciality");
}

declare the string tpesu globally.

Upvotes: 3

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