jar包工具类

 public void JSONToObject(){
        User user = new User();
        user.setName("小玲");
        user.setAge(15);
        //user转为json
        String json = JSON.toJSONString(user);
        //json转为user
        JSONObject user1 = JSON.parseObject(json);
        System.out.println(user1);
 
    }
 
 
 public void userToDBO() throws InvocationTargetException, IllegalAccessException, NoSuchMethodException {
        User user = new User();
        user.setName("小玲");
        user.setAge(15);
        Map map1 = new HashMap<>();
        map1 = BeanUtils.describe(user);//user转为map
        System.out.println(map1);
 
        Map<String,Object> map = new HashMap<>();
        map.put("name","小玲");
        map.put("age",15);
        User user1 = new User();
        BeanUtils.populate(user1,map);//map转为user
        System.out.println(user1);