Server Is not returning response

Question

I am calling a url using this code

URL url = new URL(urlString);
                HttpURLConnection httpCon = (HttpURLConnection) url
                        .openConnection();
                httpCon.setRequestMethod("HEAD");
                httpCon.setConnectTimeout(1200000);
                httpCon.setReadTimeout(1200000);
                httpCon.setRequestMethod("GET");
                httpCon.setRequestProperty("Content-Type", "application/json");
                int responseCode = httpCon.getResponseCode();
                System.out.println(responseCode);

i am running a webservice in development server using local source code.the reponse is not coming back

note:-the service running time is 7-8 min.

yes @user3441151 i have a api that will return json but the data is so huge so it's taking 8 mints to run i can see the service is running in server log but after finish it's not returning the values. — Sachin Singh
– Sachin Singh, Commented Apr 4, 2017 at 7:11
What you get from this API Call? Is it a JSON Array or JSON Object? — user3441151
– user3441151, Commented Apr 4, 2017 at 7:15

user3441151 · Accepted Answer · 2017-04-04 06:15:46Z

Try this.

Imports are given below :

import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import java.io.InputStream;
import java.io.InputStreamReader;

Code is given below :

URL url = new URL(urlString);
HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();
httpCon.setRequestMethod("HEAD");
httpCon.setConnectTimeout(1200000);
httpCon.setReadTimeout(1200000);
httpCon.setRequestMethod("GET");
httpCon.setRequestProperty("Content-Type", "application/json");
int responseCode = httpCon.getResponseCode();
System.out.println(responseCode);

//For getting the response in JSON
JsonParser jp = new JsonParser();
JsonElement root = jp.parse(new InputStreamReader((InputStream) httpCon.getContent()));
JsonObject innerRootobj = root.getAsJsonObject();
System.out.println("innerRootobj : " + innerRootobj);

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