Spring MVC 异步交互demo:
1.jsp页面:
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
2.controller:
package xm.zjl.controller;import java.io.IOException;import java.util.HashMap;import java.util.Map;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;/** * 登录controller * * @author Administrator * */@Controller@RequestMapping("/user/*")public class LoginController { @RequestMapping(value="login.do") public @ResponseBody Maplogin(HttpServletRequest request,HttpServletResponse response) throws IOException{ System.out.println(request.getParameter("name")); Map map = new HashMap (); if(request.getParameter("name").equals("123")){ System.out.println("城东"); map.put("msg", "成功"); }else{ System.out.println("失败"); map.put("msg", "失败"); } return map; } }