不多说，直接加载源码：
需要的包文件：
commons-fileupload-1.2.1.jar commons-io-1.3.2.jar commons-logging-1.1.jar freemarker-2.3.13.jar log4j-1.2.17.jar ognl-2.6.11.jar struts2-core-2.1.6.jar struts2-dojo-plugin-2.1.8.1.jar xwork-2.1.2.jar
Struts2Test.java源码：
package com.test;
import com.opensymphony.xwork2.ActionSupport;
@SuppressWarnings("serial")
public class Struts2Test extends ActionSupport{
private static int count=0; //注：此处必须得加上static，否则每次运行时都会加载count=0
public int getCount() {
return ++count;
}
@Override
public String execute() throws Exception {
// TODO Auto-generated method stub
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>
<sx:div href="sa.action" updateFreq="3000" >
<p>你好</p>
</sx:div>
<p>你好2</p>
</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>
<p>页面刷新的次数</p>
<s:property value="count"/>
</body>
</html>
运行的结果：
刷新中。。。
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时间： 2024-10-16 19:31:11