Parsing a JSON string in Java

Question

I have a JSON string in the format

{"id":100,"nickname":"yash","name":"Rahul"}

which i got with the code below:

import java.io.IOException;
import java.io.StringWriter;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.JSONValue;

    public class Json {
        public static void main(String str[]) throws IOException
        {

          JSONObject obj=new JSONObject();
          obj.put("name","Rahul");
          obj.put("id",100);
          obj.put("nickname","yash");
          StringWriter out = new StringWriter();
          obj.writeJSONString(out);
          String jsonText = out.toString();
          System.out.println(jsonText);
            }
    }

Now, how do i parse this JSON string and get the values??

Frankly: both of the linked-to questions have somewhat sub-par answers (mostly consisting of links only). If someone finds a duplicate with *good* answers, please tell us. — Joachim Sauer, Mar 27 '13 at 10:43

score 2 · Accepted Answer · answered Mar 27 '13 at 10:49

2

Use JSONObject.get() method Like this:

    String name = (String) obj.get("name");
    int ID = Integer.parseInt((String) obj.get("id"));
    String nickname = (String) obj.get("nickname");


    System.out.println("Name=  " + name);
    System.out.println("ID=  " + ID );
    System.out.println("nickname=" + nickname);

answered Mar 27 '13 at 10:49

Alya'a Gamal

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can i get those values from the string jsonText?? – yAsH Mar 27 '13 at 10:58
so why you use the Json?? , sure you can parse the string to get the values , but it's easy with json to set and get the data :) – Alya'a Gamal Mar 27 '13 at 11:12

Parsing a JSON string in Java

1 Answers1