JSON数据-FastJson的使用

1.导包

    com.alibaba
    fastjson
    1.2.78

 @RequestMapping("/j4")
    public String jason4() {

        List userList=new ArrayList();
        User user1 = new User(1, "邓孝慈", "111111");
        User user2 = new User(1, "许魏洲", "2222");
        User user3 = new User(1, "卡卡", "123456");
        userList.add(user1);
        userList.add(user2);
        userList.add(user3);

        String s = JSON.toJSONString(userList);
        return s;

    }