1.加入jackson的jar包. springmvc。
2.在响应的方法上加上@ResponseBody :把java对象转化为json对象。
3.方法的返回值可以是对象集合字符串。
package com.zhiyou100.wyf.controller; import java.util.ArrayList; import java.util.List; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import com.zhiyou100.wyf.bean.Users; @Controller @RequestMapping("/ajax/") public class AjaxController { @RequestMapping(value="Ajax1",produces="text/html;charset=UTF-8") @ResponseBody//把java对象转化json对象，需要使用jackson的jar包 public String ajax(String name) {//对象 System.out.println(name); return "张三"; } @RequestMapping("Ajax2") @ResponseBody public List<Users> ajax1(String name) { System.out.println(name); List<Users> users = new ArrayList<Users>(); Users user1 = new Users("张三1",11,"男",11,"111"); Users user2 = new Users("张三2",11,"男",11,"111"); Users user3 = new Users("张三3",11,"男",11,"111"); Users user4 = new Users("张三4",11,"男",11,"111"); Users user5 = new Users("张三5",11,"男",11,"111"); Users user6 = new Users("张三6",11,"男",11,"111"); users.add(user1); users.add(user2); users.add(user3); users.add(user4); users.add(user5); users.add(user6); return users; } }
jsp代码如下：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> <link rel="stylesheet" href="/springMvc-03/css/index.css"> <script type="text/javascript" src="/springMvc-03/js/jquery-3.2.1.min.js"></script> <script type="text/javascript"> $.post("ajax/Ajax1",{"name":"张三1"},function(data){ alert(data); }); </script> <script type="text/javascript"> $.post("ajax/Ajax2",{"name":"张三2"},function(result){ $.each(result,function(i,n){ alert(n.uname) }) }); </script> </head> <body> <img src="/springMvc-03/img/32551428_1231_20190617-131828.png"> </body> </html>
如果ajax返回的为字符串，那么就会出现乱码。
1.编写注解@RequestMapping(value="ajax",produces = {"text/html;charset=utf-8"})
@RequestMapping(value="ajax",produces = {"text/html;charset=utf-8"})
2.修改配置文件，在驱动中加入代码如下
参考步骤（通过org.springframework.web.servlet.view.InternalResourceViewResolver的有参构造函数进行设置编码）：
