How to Parse this JSON Response in JAVA

Question

I want to parse these kind of Json responses :

{
"MyResponse": {
    "count": 3,
    "listTsm": [{
        "id": "b90c6218-73c8-30bd-b532-5ccf435da766",
        "simpleid": 1,
        "name": "vignesh1"
    },
    {
        "id": "b90c6218-73c8-30bd-b532-5ccf435da766",
        "simpleid": 2,
        "name": "vignesh2"
    },
    {
        "id": "b90c6218-73c8-30bd-b532-5ccf435da766",
        "simpleid": 3,
        "name": "vignesh3"
    }]
 }
}

I tried using SIMPLE JSON parser but this is not working for me:

Object obj = parser.parse(resp);
JSONObject jsonObject = (JSONObject) obj;
JSONArray response = (JSONArray) jsonObject.get("MyResponse");

//JSONArray arr=new JSONArray(yourJSONresponse);
ArrayList<String> list = new ArrayList<String>();
for(int i=0; i<response.size(); i++){
    list.add(response.get(i)("name"));
}

The JSON message isn't valid JSON so that may be your problem. I just checked your JSON string using jsonlint.com — nickebbitt
– nickebbitt, Commented Sep 19, 2013 at 15:45

Maxim Shoustin · Accepted Answer · 2013-09-19 16:05:20Z

28

public static void main(String[] args) throws JSONException {
    String jsonString  = "{" + 
            "   \"MyResponse\": {" + 
            "       \"count\": 3," + 
            "       \"listTsm\": [{" + 
            "           \"id\": \"b90c6218-73c8-30bd-b532-5ccf435da766\"," + 
            "           \"simpleid\": 1," + 
            "           \"name\": \"vignesh1\"" + 
            "       }," + 
            "       {" + 
            "           \"id\": \"b90c6218-73c8-30bd-b532-5ccf435da766\"," + 
            "           \"simpleid\": 2," + 
            "           \"name\": \"vignesh2\"" + 
            "       }," + 
            "       {" + 
            "           \"id\": \"b90c6218-73c8-30bd-b532-5ccf435da766\"," + 
            "           \"simpleid\": 3," + 
            "           \"name\": \"vignesh3\"" + 
            "       }]" + 
            "   }" + 
            "}";


    JSONObject jsonObject = new JSONObject(jsonString);
    JSONObject myResponse = jsonObject.getJSONObject("MyResponse");
    JSONArray tsmresponse = (JSONArray) myResponse.get("listTsm");

    ArrayList<String> list = new ArrayList<String>();

    for(int i=0; i<tsmresponse.length(); i++){
        list.add(tsmresponse.getJSONObject(i).getString("name"));
    }

    System.out.println(list);
}   
}

Output:

[vignesh1, vignesh2, vignesh3]

Comment: I didn't add validation

[EDIT]

other way to load json String

    JSONObject obj= new JSONObject();
    JSONObject jsonObject = obj.fromObject(jsonString);
    ....

edited Sep 19, 2013 at 16:05

answered Sep 19, 2013 at 15:50

Maxim Shoustin

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5 Comments

user2463283 Over a year ago

am getting error like "The constructor JSONObject(String) is undefined"

user2463283 Over a year ago

... JSONObject jsonObject = new JSONObject(); JSONObject myResponse = jsonObject.getJSONObject("MyResponse"); ...

user2463283 Over a year ago

which version You are using

Jeff Tian Over a year ago

@MaximShoustin can you send a direct link? Couldn't find related results.

Frozenfrank Jan 6 at 19:37

This answer doesn't provide the required import to use the JSONObject class.

NicuVlad · Accepted Answer · 2018-08-24 08:01:09Z

-1

You can do simply:

JSONObject response = new JSONObject(resp);

Then you can use depending on the type of the variable something like:

int count = response.getint("count");

or

JSONArray tsm = response.getJSONArray(listTsm)

Then if you want to iterate through the objects inside you use just a for for it.

edited Aug 24, 2018 at 8:01

NicuVlad

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answered Nov 29, 2017 at 11:03

Nino Matos

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