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How to retreive data from Json using java

hi guys i have json response like this
Response response = service.execute(requestSendToNS);
// JSONObject jsonResponse = new JSONObject(response);
//String data = jsonResponse.getString("id");
System.out.println("Response Body : " + response.getBody());
and here the result :
Response Body : [{"status":"success","message":"update success","id":"1404","internalid":2604},{"status":"failed","message":"bad location is already used in another location","id":1405}]
my question is how to getting value "id" from my json response ?
i have try use this code :
// JSONObject jsonResponse = new JSONObject(response);
//String data = jsonResponse.getString("id");
i also have use this
List responseObject = objectMapper.readValue(response.getBody(),List);
but i cannot mapping from json Array to object
but i cannot retreive value from id

Your response body is an array.
[{...},{...}]
That's why you can't get id
String data = jsonResponse.getString("id");
Please have a look JsonReader to read json as JsonArray
https://docs.oracle.com/javaee/7/api/javax/json/JsonReader.html#readObject--
JsonReader jsonReader = Json.createReader(new StringReader(response.getBody()));
JsonArray array = jsonReader.readArray();
JsonObject obj = array.getJsonObject(0);
String data = obj.getString("id");

First, you have to create a class that has the exact same structure as the JSON response, and then you can use ObjectMapper from jackson library to write the JSON to class and read the values from it.

Convert a gson.JsonObject to JSONObject

I have a gson.JsonObject object. What is the easiest way to create a org.json.JSONObject object from it?

get JSON string again from JsonObject and parse it in JSONObject
JsonObject gson = new JsonParser().parse("{\"id\":\"value\"}").getAsJsonObject();
JSONObject jo2 = new JSONObject(gson.toString());

new org.json.JSONObject(gson.toJson(gson.JsonObject));

Assistance parsing with gson (google json)

I have some JSON. With GSON, it always throws an error
Exception in thread "main" java.lang.IllegalStateException: Not a JSON Object:
[["Rank","Team","Qual Avg","Auto","Container","Coopertition","Litter","Tote","Played"],[1,1730,126.3,160,488,160,137,318,10],[2,1806,96.799999999999997,20,516,80,62,344,10],[3,4522,79.799999999999997,0,404,40,64,308,10],[4,2410,79.0,26,264,160,104,242,10],[5,1329,77.099999999999994,26,220,240,121,188,10],[6,1939,65.0,28,204,80,150,194,10],[7,2457,64.799999999999997,0,328,0,100,232,10],[8,1785,61.200000000000003,20,148,120,142,188,10],[9,4646,59.5,0,200,120,81,206,10],[10,1723,58.600000000000001,24,164,80,156,168,10],[11,5476,54.899999999999999,20,160,120,103,152,10],[12,5126,54.600000000000001,0,168,120,102,168,10],[13,1763,54.100000000000001,12,164,160,67,168,10],[14,1775,54.0,0,148,120,112,178,10],[15,4809,53.100000000000001,24,148,80,117,182,10],[16,1810,52.700000000000003,0,188,80,53,206,10],[17,5013,52.399999999999999,0,148,80,110,192,10],[18,1777,52.299999999999997,8,116,200,97,126,10],[19,1825,52.0,20,200,40,94,178,10],[20,1764,51.5,34,204,0,127,156,10],[21,2164,51.100000000000001,0,160,80,71,212,10],[22,1737,50.399999999999999,10,132,120,74,172,10],[23,3528,50.100000000000001,0,156,80,81,200,10],[24,938,49.100000000000001,20,188,40,115,152,10],[25,5098,48.799999999999997,4,180,80,64,178,10],[26,1987,47.700000000000003,20,76,80,49,258,10],[27,2167,47.5,28,128,80,81,186,10],[28,2335,47.299999999999997,0,128,40,127,178,10],[29,1288,44.600000000000001,12,128,40,68,204,10],[30,5119,44.200000000000003,26,108,80,108,134,10],[31,1802,43.899999999999999,6,136,80,35,188,10],[32,5268,43.600000000000001,26,92,40,110,174,10],[33,4959,43.0,4,136,80,86,140,10],[34,1982,42.799999999999997,12,116,80,88,162,10],[35,2357,41.399999999999999,0,112,120,76,160,10],[36,4455,40.700000000000003,26,168,0,87,132,10],[37,2874,40.5,0,104,80,93,146,10],[38,2560,40.200000000000003,6,132,40,134,96,10],[39,937,39.899999999999999,0,112,80,69,150,10],[40,2353,39.700000000000003,6,100,80,69,178,10],[41,1997,36.0,0,84,120,38,130,10],[42,5082,35.600000000000001,20,64,40,124,114,10],[43,1710,35.299999999999997,0,76,40,57,192,10],[44,3485,34.899999999999999,20,92,40,71,136,10],[45,3792,32.5,0,104,40,71,128,10],[46,2001,32.0,0,108,0,76,154,10],[47,5141,31.800000000000001,0,76,80,50,144,10],[48,1984,31.399999999999999,4,84,40,44,154,10],[49,1827,30.800000000000001,0,64,0,112,156,10],[50,2345,30.600000000000001,0,136,40,32,150,10],[51,1847,29.300000000000001,24,108,0,57,116,10],[52,1769,27.600000000000001,12,100,0,54,134,10],[53,1994,27.0,0,28,120,72,86,10],[54,2346,25.0,0,64,40,64,106,10]]
I want to get make an int for the rank. I checked it on JSONLint, and it is valid.
Here is my code:
Gson gson = new GsonBuilder().serializeNulls().create();
System.out.println("Connecting to The Blue Alliance");
String sURL = "http://www.thebluealliance.com/api/v2/event/2015mokc/rankings?X-TBA-App-Id=frc1810:alex-webber:v01";
URL url = new URL(sURL);
HttpURLConnection request = (HttpURLConnection) url.openConnection();
request.connect();
JsonParser jp = new JsonParser();
JsonElement root = jp.parse(new InputStreamReader((InputStream) request
.getContent()));
JsonObject rootobj = root.getAsJsonObject();
String key = rootobj.get("key").toString();

That is because it is not an object type. From the Javadoc for JsonObject:
A class representing an object type in Json...
The type you are getting as a response is an array type, so you need to use JsonArray instead of JsonObject:
JsonArray jsonArray = root.getAsJsonArray();

how to access json array element in java

i am getting json array in the output.i want to access the specific key elments from the response .how can i ..?
ResponseEntity <String> respone;
try {
response =
restTemplate.exchange(url, HttpMethod.POST, requestEntity, String.class);
String response=response.getBody();
JSONObject res = new JSONObject();
res.put("result", response);
System.out.println(res);
int len=res.size();
System.out.println(len);
JSONParser parser=new JSONParser();
Object obj = parser.parse(response);
JSONArray array = (JSONArray)obj;
System.out.println(array.get(0)); }
this is respponse format i m getting in output.i want to access the bid from the response.how can i?
[
{
"bName": "abc",
"bId": "n86nbnhbnghgy76"
}
]

Decode your string using JSONArray(String json) constructor:
String response = response.getBody();
JSONArray res = new JSONArray(response);
String bId = res.getJSONObject(0).get("bId");
System.out.println(bid);

EDIT
Try following:
String response=response.getBody();
JSONObject res = new JSONObject();
System.out.println(res);
int len=res.size();
System.out.println(len);
JSONParser parser=new JSONParser();
Object obj = parser.parse(response);
JSONArray array = (JSONArray)obj;
res=(JSONObject)array.get(0);
System.out.println(res.get("bId"));
Output :
n86nbnhbnghgy76
This one is based on your code and with Simple Json Library.

JSONException - Parsing String to JSONArray

i want to parse some json downloaded from the web in a JSONArray.
Simple thing i think, but can't get it to work.
It seams that the JSON Format is the Problem. I tried different ways
to fix it, but nothing helps.
I download the String with this method:
private String DownloadContent(String URL) {
String result = null;
try {
HttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(URL);
HttpResponse response = httpClient.execute(httpGet);
result = EntityUtils.toString(response.getEntity());
} catch(Exception e) {
Log.e("log_tag", e.toString());
}
return result;
}
After that i try to parse the string to the JSONArray like this:
String resultString = DownloadContent(stringUrl);
JSONArray jArray = new JSONArray(resultString);
but everytime i get this exception:
i test the following to get the JSON right:
result = EntityUtils.toString(response.getEntity(), "UTF-8");
result = StringEscapeUtils.unescapeJson(EntityUtils.toString(response.getEntity()));
this methods changed the string but no time the JSON is valid (tested with this).
In my JSON are things like this:
Meine gr\\u00f6\\u00dfte Leidenschaft ist es
http:\\/\\/bla.de\\/wp-content\\/uploads\\/2014\\/02\\/hello.jpg
What should i do to get it right? I hope someone can help me :)
Thanks!

Looking at the detailMessage, it looks like you are trying to create a JSONArray from JSON that looks like
{"posts": [...]}
That's a JSON object, not an array. You'll need to parse it as a JSONObject and get the array object from it.
JSONObject object = new JSONObject(resultString);
JSONArray array = object.getJSONArray("posts"); // or whatever the method is to get a JSONArray element from the JSONObject
This is assuming you are trying to get the JSON array named posts.