strust 2.18 应用json 学习

tanzhengping11 · 发表于 2013-2-6 08:40:33

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>

<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

		自动登录	找回密码
密码			立即注册