Struts2-Ajax无刷新显示信息

来源：互联网发布：vb入门教程编辑：程序博客网时间：2024/04/28 02:36

Struts2-Ajax无刷新显示信息，以本项目为例就是使用div标签来生成div元素，而该div元素并非是静态的内容，而是通过div标签中的href来动态的从服务器中获取div元素的内容。而div标签中的delay则是延迟加载的意思，本项目中是采用了延迟3秒加载。

项目需要的包文件：

commons-fileupload-1.2.1.jarcommons-io-1.3.2.jarcommons-logging-1.1.jarfreemarker-2.3.13.jarlog4j-1.2.17.jarognl-2.6.11.jarstruts2-core-2.1.6.jarstruts2-dojo-plugin-2.1.8.1.jarxwork-2.1.2.jar

Struts2Test.java源码：

package com.test;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import com.opensymphony.xwork2.ActionSupport;@SuppressWarnings("serial")public class Struts2Test extends ActionSupport{List<Object> list=new ArrayList<Object>();public List<Object> getList() {return list;}public void setList(List<Object> list) {this.list = list;}@Overridepublic String execute() throws Exception {// TODO Auto-generated method stubfor(int i=0;i<3;i++){Map<String,Object> map=new HashMap<String, Object>();map.put("userName", "admin"+i);map.put("password", "123456"+i);map.put("name", "zhangsan"+i);list.add(map);}return "success";}}

struts.xml源码:

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN""http://struts.apache.org/dtds/struts-2.3.dtd"><struts><constant name="struts.devMode" value="true" /><package name="default" extends="struts-default" namespace="/"><action name="sa" class="com.test.Struts2Test" ><result name="success">/success.jsp</result></action></package> </struts>

web.xml源码：

<?xml version="1.0" encoding="UTF-8"?><web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">  <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list>    <filter>  <filter-name>struts2</filter-name>  <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>  </filter>   <filter-mapping>  <filter-name>struts2</filter-name>  <url-pattern>/*</url-pattern>  </filter-mapping>  </web-app>

index.jsp源码：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%@taglib prefix="s" uri="/struts-tags" %><%@taglib prefix="sx" uri="/struts-dojo-tags"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><html>  <head>  <!-- 下面的头信息不可或缺，否则程序会报错！ -->  <!-- 不加下面的头信息，错误信息为：ReferenceError: djConfig is not defined -->  <s:head/>  <sx:head parseContent="true"/>  <!-- 上面的头信息不可或缺，否则程序会报错！ -->    <base href="<%=basePath%>">    <title>My JSP 'index.jsp' starting page</title>  </head>  <body>  <s:url id="te" value="/sa.action"></s:url>  <sx:div href="%{te}" delay="3000">  <div align="center">  <p>此处内容即将显示</p>  </div>  </sx:div>  </body></html>

success.jsp源码：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%@taglib prefix="s" uri="/struts-tags"%><%@taglib prefix="sx" uri="/struts-dojo-tags"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><html>  <head>  <s:head/>  <sx:head parseContent="true"/>    <base href="<%=basePath%>">    <title>SUCCESS</title>  </head>  <body>    <div align="center">    <table border="1">    <thead>    <tr>    <td>    <div>用户名</div>    </td>    <td>    <div>密码</div>    </td>    <td>    <div>真实姓名</div>    </td>    </tr>    </thead>    <tbody>    <s:iterator value="list">    <tr>    <td>    <div><s:property value="userName"/></div>    </td>    <td>    <div><s:property value="password"/></div>    </td>    <td>    <div><s:property value="name"/></div>    </td>    </tr>    </s:iterator>    </tbody>    </table>    </div>  </body></html>

运行的结果：

3秒后显示的结果：

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