Springmvc完成ajax功能实例详解

<script type="text/javascript" src="js/jquery-3.4.1.min.js"></script>
<script type="text/javascript">
 $.post("ajax/Ajax1",{"name":"zhu"},function(data){
  $.each(data,function(i,n){
  alert(n.name);
   
  }) 
 })
</script>

@RequestMapping(value="Ajax1",produces = "text/html;charset=UTF-8") 
 @ResponseBody
 public String ajax1(String name) {
  System.out.println(name);
  return "hello胡";
 }

@RequestMapping("Ajax2")
 @ResponseBody
 public User ajax2(String name) {
  User user=new User("胡昊中","1");
  return user;
 }

@RequestMapping("Ajax3")
  @ResponseBody
  public List<User> ajax3(String name) {
    User user1=new User("胡昊中","1");
    User user2=new User("朱华龙","2");
    User user3=new User("王玉峰","3");
    List<User> list=new ArrayList<>();
    list.add(user1);
    list.add(user2);
    list.add(user3);
    return list;
  }

@RequestMapping(value="Ajax1",produces="text/html;charset=UTF-8")

<mvc:annotation-driven>
  <mvc:message-converters>
    <bean class="org.springframework.http.converter.StringHttpMessageConverter">
       <constructor-arg index="0" value="utf-8"></constructor-arg>
    </bean>
  </mvc:message-converters>
</mvc:annotation-driven>