Rumah >hujung hadapan web >tutorial js >Jquery+ajax+springMVC如何返回json
JSP页面:
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>登录验证</title> <script type="text/javascript" src="js/jquery-1.8.3.js"></script> <script type="text/javascript"> $(function(){ //ajax验证 $("#ajax1").click(function(){ alert(1); $.post( "ajax1.action", function(result){ alert(2); alert(result.ms); } ); }); }); </script> </head> <body> <p id="con"> <p class="center"><h2>欢迎登录</h2></p> <p> <form action="login.action" method="post"> <table> <tr> <td>用户名:</td> <td colspan="3"><input type="text" name="name"/></td> <td></td> </tr> <tr> <td>密 码:</td> <td colspan="3"><input type="password" name="pwd"/></td> <td></td> </tr> <tr> <td>用户名:</td> <td><input type="text" name="code"/></td> <td></td> </tr> <tr> <td class="center"> <input type="submit" name="sub" value="登录"/> </td> </tr> <tr> <td> <button id="ajax1">ajax测试1</button> </td> </tr> </table> </form> </p> </p> </body> </html>
后台控制类:
package com.login.control; import javax.servlet.http.HttpServletRequest; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.servlet.ModelAndView; import com.alibaba.fastjson.JSONObject; import com.login.bean.Users; import com.login.service.UsersService; /** * 用户控制类 * @author * */ @Controller public class UsersControl { @RequestMapping(value="ajax1.action",method= RequestMethod.POST) @ResponseBody public Object ajax1(HttpServletRequest request){ System.out.println("进入控制类"); JSONObject json = new JSONObject(); String ms = "ajax测试1成功!哈哈!"; json.put("ms", ms); System.out.println("出控制类"); return json; } }
必须加这两句才能返回json值
@RequestMapping(value="ajax1.action",method= RequestMethod.POST) @ResponseBody
Atas ialah kandungan terperinci Jquery+ajax+springMVC如何返回json. Untuk maklumat lanjut, sila ikut artikel berkaitan lain di laman web China PHP!