CODEWITHSUNDEEP
javajson
redrom
redrom

Reputation: 11632

Java - How to get object value in JSON array?

i have a JSON like example below and i'm trying to get some values, for example value of. 

results.shipper.id



{
    "results": [
        {
            "updated": false,
            "notification": false,
            "some_data": {
                "id": 15989,
                "pieces": 0,

            },
            "shipper": {
                "updated": false,
                "notification": false,
                "id": 1587,
                "parent": {
                    "updated": false
                },

I'm trying to get value by this way:

    String test = shipmentData.getJSONObject("shipper").getString("id");

But it always throws a exception. I think, that exception is caused because of the i am not accessing to the values via "results" array.

How can i easy access to the value what i need.

I tried find some helpers (Gson, fast-json, etc..) but it seems to be a quite complicated for using (i would like to work with JSON tree for direct access to values "on-the-fly" or access to values like to a object, it means.. Object.InnerObject.value ).

So question is how can i do it right?

Thanks for any advice.

Upvotes: 3

Views: 36601

Answers (1)

sybear
sybear

Reputation: 7784

JSON needs to be traversed in order to access id:

JSONArray results = shipmentData.getJSONArray("results");
JSONObject first = results.getJSONObject(0);
JSONObject shipper = first.getJSONObject("shipper");
Integer id = shipper.getInt("id");

Parse int to string:

String id = String.valueOf(shipper.getInt("id"));

Upvotes: 10

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