JSON Array Syntax in Java

Question

I have a JSON text as response from a web API:

{
    "code": 0,
    "message": "Success",
    "data": {
        "invoiceId": "26825",
        "additionService": [
            2
        ],
        "invoiceStatusTxt":"OK"
    }
}

I'm using JSONParser to get a JSONArray from the additionService key. But, it is showing a JSON error. My code is:

JSONObject RES = JSONParser.getJSON(URL_API);
JSONArray ob = RES.getJSONObject("data").getJSONArray("additionService");

The error messages are as follows:

W/System.err﹕ org.json.JSONException: No value for additionService
W/System.err﹕ at org.json.JSONObject.get(JSONObject.java:355)
W/System.err﹕ at org.json.JSONObject.getJSONObject(JSONObject.java:574)

i has used json parser before, when i get value from key invoiceId.. it work, i have problem with additionService –

Answer 1

I tried it this way. Seems to be working:

String str = "{\"code\":0,\"message\":\"Success\",\"data\":{\"invoiceId\":\"26825\",\"additionService\":[2],\"invoiceStatusTxt\":\"OK\"}}";
JSONObject obj=(JSONObject) JSONValue.parse(str);
JSONObject data = (JSONObject) obj.get("data");
JSONArray additionService = (JSONArray) data.get("additionService");
System.out.println(additionService);