springMVC利用json传数据到前台（二）

谁借莪１个温暖的怀抱￠ 2022-08-27 08:55 169阅读 0赞

本文是本人在学习网络视频springMVC的过程中的学习笔记。

本文是记录从后台传到前台的过程。

@RequestMapping(value="/addUserJson")
    	public String addUserJson(User user,HttpServletRequest request,HttpServletResponse response){
    		String result = "{\"userName\":\""+ user.getUserName() +"\",\"age\":\" "+ user.getAge()+" \"}";
    		PrintWriter out = null;
    		response.setContentType("application/json");
    		
    		try {
    			out = response.getWriter();
    			out.write(result);
    		} catch (IOException e) {
    			e.printStackTrace();
    		}
    		return "userManager";
    	}

前台接收部分

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
       
    <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <script type="text/javascript" src="/springMVC6/js/jquery-1.7.1.min.js"></script>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>Insert title here</title>
    <script type="text/javascript">
    	$(document).ready(function(){
    		$("#add").click(function(){
    			var userName = $("#userName").attr("value");
    			var age =$("#age").attr("value");
    			
    			var user = {userName:userName,age:age};
    			
    			$.ajax({
    				url:"/springMVC6/user/data/addUserJson",
    				type:"post",
    				data:user,
    				success:function(data){
    					alert("userName--->" + a.userName + "age--->" + a.age );
    					
    				}
    			});
    			
    			
    			
    		});
    	});
    </script>
    </head>
    <body>
    	<h>json添加用户</h>
    	姓名：<input type="text" id="userName" name="userName">
    	年龄：<input type="text" id="age" name="age">
    	<input type="button" id="add" value="添加">
    	
    </body>
    </html>