How to iterate a JsonObject (gson)

Question

I have a JsonObject e.g

JsonObject jsonObject = {\"keyInt\":2,\"keyString\":\"val1\",\"id\":\"0123456\"}

Every JsonObject contains

Answer 1

How are you creating your JsonObject? Your code works for me. Consider this

import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
...
...
...
try{
        JsonObject jsonObject = new JsonObject();
        jsonObject.addProperty("keyInt", 2);
        jsonObject.addProperty("keyString", "val1");
        jsonObject.addProperty("id", "0123456");

        System.out.println("json >>> "+jsonObject);

        Map attributes = new HashMap();
        Set> entrySet = jsonObject.entrySet();
        for(Map.Entry entry : entrySet){
          attributes.put(entry.getKey(), jsonObject.get(entry.getKey()));
        }

        for(Map.Entry att : attributes.entrySet()){
            System.out.println("key >>> "+att.getKey());
            System.out.println("val >>> "+att.getValue());
            } 
    }
    catch (Exception ex){
        System.out.println(ex);
    }

And it is working fine. Now I am interested in knowing how you created that JSON of yours?

You can also try this (JSONObject)

import org.json.JSONObject;
...
...
...
try{
        JSONObject jsonObject = new JSONObject("{\"keyInt\":2,\"keyString\":\"val1\",\"id\":\"0123456\"}");
        System.out.println("JSON :: "+jsonObject.toString());

        Iterator it  =  jsonObject.keys();
         while( it.hasNext() ){
             String key = it.next();
             System.out.println("Key:: !!! >>> "+key);
             Object value = jsonObject.get(key);
             System.out.println("Value Type "+value.getClass().getName());
            }
    }
    catch (Exception ex){
        System.out.println(ex);
    }