Database JSON array

Question

So I'm currently building a game, and I'm trying to parse this in the game. Now this is how a part of it looks like:

{
    "CircuitList": [    
        {    
            "name": "GP SILVERSTONE",
            "location": "ENGLAND",
            "laps": 57,
            "Parts": 
                [
                    {   
                        "1":{
                        "type": "straight",
                        "length": 800
                    },
                        "2": {
                        "type": "sharpturn",
                        "length": 200
                    },

Now this is followed by more parts. Right now, I've parsed the json file, and used

JSONArray Silverstoneparts = (JSONArray) jsonObject.get("Parts");

to create a array with all the parts. But I don't know how to read out the types and lengths, so if there is anyone willing to help, like push me gently into the right direction, it would be highly appreciated :)

Consider using something like Jackson to unmarshal JSON to Java object structures. — lexicore
– lexicore, Commented Dec 14, 2016 at 13:36
create an object obj for the required structure, in your case, the object will have type and length. Now, parts is an array of objects, each of which contains a map from "id" to obj. You can then use Jackson or gson or some library to serialize and deserialize — gaganbm
– gaganbm, Commented Dec 14, 2016 at 13:44

thepaulo · Accepted Answer · 2016-12-15 10:17:36Z

0

JSONArray circuitList = (JSONArray) jsonObject.get("CircuitList");
JsonArray parts = circuitList.getJsonObject(0).getJsonArray("parts");

It's recommend to use JsonObject to build json string.

edited Dec 15, 2016 at 10:17

answered Dec 14, 2016 at 14:13

thepaulo

3804 silver badges10 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Gurdev Singh · Accepted Answer · 2016-12-14 13:40:16Z

0

You can try parsing the JSON using gson library. You should define a data struct with nested arrays/properties as per your JSON data and serialise the JSON data to native object.

Native java object will help you read the parsed arrays and other properties in your code rather being relying on keys and running loops within loops to extract the values.

answered Dec 14, 2016 at 13:40

Gurdev Singh

2,16515 silver badges13 bronze badges

Collectives™ on Stack Overflow

Database JSON array

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related