Java下的json解析工具

//在www.json.org上公布了很多Java下的json解析工具，其中org.json和json-lib比较简单，两者使用上差不多。下面两段源代码是分别使用这两个工具解析和构造//JSON的演示程序。
//这是使用json-lib的程序：
import java.util.HashMap;
import java.util.Map;

import net.sf.json.JSONObject;

public class Test {

    public static void main(String[] args) {
        String json = "{\"name\":\"reiz\"}";
        JSONObject jsonObj = JSONObject.fromObject(json);
        String name = jsonObj.getString("name");
     
        jsonObj.put("initial", name.substring(0, 1).toUpperCase());

        String[] likes = new String[] { "JavaScript", "Skiing", "Apple Pie" };
        jsonObj.put("likes", likes);

        Map <String, String> ingredients = new HashMap <String, String>();
        ingredients.put("apples", "3kg");
        ingredients.put("sugar", "1kg");
        ingredients.put("pastry", "2.4kg");
        ingredients.put("bestEaten", "outdoors");
        jsonObj.put("ingredients",ingredients);
     
        System.out.println(jsonObj);
    }
}
//这是使用org.json的程序：
import java.util.HashMap;
import java.util.Map;

import org.json.JSONException;
import org.json.JSONObject;

public class Test {

    public static void main(String[] args) throws JSONException {
        String json = "{\"name\":\"reiz\"}";
        JSONObject jsonObj = new JSONObject(json);
        String name = jsonObj.getString("name");

        jsonObj.put("initial", name.substring(0, 1).toUpperCase());

        String[] likes = new String[] { "JavaScript", "Skiing", "Apple Pie" };
        jsonObj.put("likes", likes);

        Map <String, String> ingredients = new HashMap <String, String>();
        ingredients.put("apples", "3kg");
        ingredients.put("sugar", "1kg");
        ingredients.put("pastry", "2.4kg");
        ingredients.put("bestEaten", "outdoors");
        jsonObj.put("ingredients", ingredients);
        System.out.println(jsonObj);

        System.out.println(jsonObj);
    }
}