Example Program to read the JSON data from HTTP request

Read some data present in JSON object by making a HTTP request.


Program:




import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Iterator;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;

 public class Test
 {
    public Test() { }

    public static void main(String[] args) throws IOException
    {
            URL url;
            HttpURLConnection connection = null;
            InputStream is = null;
            JSONParser parser = new JSONParser();

            try
            {
                url = new URL("https://maps.googleapis.com/maps/api/geocode/json?address=Madhapur+Hyderabad");
                connection = (HttpURLConnection) url.openConnection();
                connection.setRequestMethod("GET");
                connection.connect();
                is = connection.getInputStream();
                BufferedReader theReader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
                Object obj = parser.parse(theReader);
                JSONObject jsonObject = (JSONObject) obj;
JSONArray msg = (JSONArray) jsonObject.get("results");
Iterator<JSONObject> iterator = msg.iterator();
while (iterator.hasNext()) {
System.out.println(iterator.next().get("formatted_address"));
}
            }
            catch (Exception e) {
                    e.printStackTrace();
            }
    }

 }