演示JSON-LIB小工具

演示JSON-LIB小工具　
public class Demo1 {
    /*
     * 当map来用
     */
    @Test
    public void fun1() {
        JSONObject map = new JSONObject();
        map.put("name", "zhangSan");
        map.put("age", 23);
        map.put("sex", "male");
        
        String s = map.toString();
        System.out.println(s);
    }
    
    /*
     * 当你已经有一个Person对象时，可以把Person转换成JSONObject对象
     */
    @Test
    public void fun2() {
        Person p = new Person("liSi", 32, "female");
        // 把对象转换成JSONObject类型
        JSONObject map = JSONObject.fromObject(p);
        System.out.println(map.toString());
    }
    
    /**
     * JSONArray
     */
    @Test
    public void fun3() {
        Person p1 = new Person("zhangSan", 23, "male");
        Person p2 = new Person("liSi", 32, "female");
        
        JSONArray list = new JSONArray();
        list.add(p1);
        list.add(p2);
        
        System.out.println(list.toString());
    }
    
    /**
     * 原来就有一个List，我们需要把List转换成JSONArray
     */
    @Test
    public void fun4() {
        Person p1 = new Person("zhangSan", 23, "male");
        Person p2 = new Person("liSi", 32, "female");
        List<Person> list = new ArrayList<Person>();
        list.add(p1);
        list.add(p2);
        
        
        System.out.println(JSONArray.fromObject(list).toString());
    }