strust 2.18 应用json 学习
1. struts2 必需包.2.
json-lib-2.2-jdk15.jar
commons-beanutils.jar，
commons-lang.jar，
ezmorph.jar，
struts2-json.jar
这些包在strust2.18中都有.
实例：界面
<%@ page language="java" pageEncoding="GBK"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<script type="text/javascript" src="js/jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="js/json2.js"></script>
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<script type="text/javascript">
$(function(){
$("#login").click(function(){
login();
});
})
function login(){
var url="user_login.action";
var name=$("#name").attr("value");
var password=$("#password").attr("value");
var params={"user.name":name,"user.password":password};
$.getJSON(url,params,function callback(data){
var user=eval("("+data+")");
$("#result").each(function(){
$(this).html('welcome ,'+user.name);
});
});
}
</script>
</head>
<body>&nbsp;
This is my JSP page. <br>
<s:actionmessage/>
<form action="" id ="form">
用户名:
<input type="text" name="user.name" id="name">
<br>
密码：
<input type="password" name="user.password" id="password"/>
<br>
<input type="button" id="login" value="登录" />
</form>
<div id="result"></div>
</body>
</html>
action 代码
package com.tzp;import java.util.HashMap;import java.util.Map;import net.sf.json.JSONObject;import com.opensymphony.xwork2.ActionSupport;public class UserAction extends ActionSupport {/** **/private static final long serialVersionUID = -6412115797195077412L;private User user;private String result;public String getResult() {return result;}public void setResult(String result) {this.result = result;}public User getUser() {return user;}public void setUser(User user) {this.user = user;}public String login() throws Exception{Map map=new HashMap();if(user!=null){map.put("name", user.getName());map.put("password",user.getPassword());System.out.println(map.get("name").toString());JSONObject obj=JSONObject.fromObject(map);result=obj.toString();}else{result="";}System.out.println(result);return SUCCESS;}}
struts 配置
<div class="quote_title"> 写道
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