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springMVC利用json传数据到前台(二)

2014-05-22 21:04 253 查看
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>
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