struts2 AJAX - 白开水皮皮

代码

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
int increasement = 10;
%>
<%@taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>
  <head>
    <base href="<%=basePath%>">
    <script type="text/javascript" src="js/frame/jquery-1.4.2.js"></script>
    <script type="text/javascript" src="js/util.js"></script>
    <link rel="stylesheet" href="css/baseType.css" type="text/css"></link>
    <script language="javascript">
           function getMsg(){
              $.ajax({
                 url:'json/returnMsg.action',
                 type:'post',
                 dataType:'json',
                 success:function(data){
                    $("#result").html(data.message);
                 }
              });
            }

           function getUser(){
              $("# result ").html("");
              $.ajax({
                 url:'json/returnUser.action',
                 type:'post',
                 dataType:'json',
                 success:function(data){
                    $("#result").append("用户ID："+data.userInfo.userId+"")
                                .append("用户名："+data.userInfo.userName+"")
                                .append("密码："+data.userInfo.password+"");
                 }
              });
            }

           function getUserList(){
              $("# result ").html("");
              $.ajax({
                 url:'json/returnList.action',
                 type:'post',
                 dataType:'json',
                 success:function(data){
                   $.each(data.userInfosList,function(i,value){
                      $("#result").append("第"+(i+1)+"个用户")
                                  .append("用户名："+value.userName+"")
                                  .append("密码："+value.password+"");
                   })
                 }
              });
            }
        </script>
  </head>
<body>
<div id="result"></div>
<input type="button" value="获得单个消息" onclick="getMsg()"/>
<input type="button" value="获得用户信息" onclick="getUser()"/>
<input type="button" value="获得用户列表" onclick="getUserList()"/>

</body>
</html>

代码

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

    <constant name="struts.enable.DynamicMethodInvocation" value="false"/>
    <constant name="struts.devMode" value="true" />
    <constant name= "struts.multipart.maxSize" value="5242880" />
    <constant name="struts.custom.i18n.resources" value="messageResource"/>

    <package name="default" namespace="/json" extends="json-default">
        <action name="returnMsg" class="com.carel.production.presentation.TestAction" method="returnMsg">
            <result  name="success" type="json">
                <param name="includeProperties">
                    message
                </param>
            </result>
        </action>
        <action name="returnUser"
                class="com.carel.production.presentation.TestAction" method="returnUser">
            <result  name="success" type="json">
                <param name="includeProperties">
                    userInfo\.userId,userInfo\.userName,userInfo\.password
                </param>
            </result>
        </action>
        <action name="returnList" class="com.carel.production.presentation.TestAction"
            method="returnList">
            <result  name="success" type="json">
                <param name="includeProperties">
                    userInfosList\[\d+\]\.userName,userInfosList\[\d+\]\.password
                </param>
            </result>
        </action>
    </package>
</struts>

代码

package com.carel.production.presentation;

import java.util.ArrayList;
import java.util.List;

import com.opensymphony.xwork2.ActionSupport;

public class TestAction extends ActionSupport {
    private String message;                //使用json返回单个值
    private UserInfo userInfo;              //使用json返回对象
    private List userInfosList;     //使用josn返回List对象

   /*返回单个值*/
   public String returnMsg(){
        this.message = "成功返回单个值";
        return SUCCESS;
   }
   /*返回UserInfo对象*/
   public String returnUser(){
       userInfo = new UserInfo();
       userInfo.setUserId(10000);
       userInfo.setUserName("刘栋");
       userInfo.setPassword("123456");
       return SUCCESS;
   }
  /*返回List对象*/
   public String returnList(){
       userInfosList = new ArrayList<UserInfo>();
       UserInfo u1 = new UserInfo();
       u1.setUserId(10000);
       u1.setUserName("张三");
       u1.setPassword("111111");
       UserInfo u2 = new UserInfo();
       u2.setUserId(10001);
       u2.setUserName("李四");
       u2.setPassword("222222");
       userInfosList.add(u1);
       userInfosList.add(u2);
       return SUCCESS;
   }
public String getMessage() {
    return message;
}
public void setMessage(String message) {
    this.message = message;
}
public UserInfo getUserInfo() {
    return userInfo;
}
public void setUserInfo(UserInfo userInfo) {
    this.userInfo = userInfo;
}
public List getUserInfosList() {
    return userInfosList;
}
public void setUserInfosList(List userInfosList) {
    this.userInfosList = userInfosList;
}
}

代码

package com.carel.production.presentation;

import java.io.Serializable;

public class UserInfo implements Serializable {
    private int userId;
    private String userName;
    private String password;
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public int getUserId() {
        return userId;
    }
    public void setUserId(int userId) {
        this.userId = userId;
    }
    public String getUserName() {
        return userName;
    }
    public void setUserName(String userName) {
        this.userName = userName;
    }
}