SpringMVC-lesson08-json-3-2023-03-24

阿里巴巴开发的JSON

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.60</version>
</dependency>

@RequestMapping( "/j4")
//@ResponseBody //它就不会走视图解析器，它会直接返回一个字符串  或用RestController替代@Controller
public String json4() throws JsonProcessingException {
    List<User> userList =new ArrayList<User>();
    User user1 = new User("飞剑5",11,"男");
    User user2 = new User("飞剑6",22,"男");
    User user3 = new User("飞剑7",33,"男");
    User user4 = new User("飞剑8",44,"男");

    userList.add(user1);
    userList.add(user2);
    userList.add(user3);
    userList.add(user4);

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