使用Struts2(二)HelloWorld

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1.struts.xml

在上一篇的基础上加入新的action---名字是hello

<?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.devMode" value="true" /><package name="basicstruts2" extends="struts-default"><action name="index"><result>/test01.jsp</result></action><action name="hello"class="com.yw.action.HelloWorldAction" method="execute"><result name="success">/HelloWorld.jsp</result></action></package></struts>

2.编写model和action

package com.yw.model;public class MessageStore{private String message;public MessageStore(){setMessage("Hello Struts User");}public String getMessage(){return message;}public void setMessage(String message){this.message = message;}}

package com.yw.action;import com.opensymphony.xwork2.ActionSupport;import com.yw.model.MessageStore;public class HelloWorldAction extends ActionSupport{private static final long serialVersionUID = 1L;private MessageStore messageStore;public String execute() throws Exception{messageStore = new MessageStore();return SUCCESS;}public MessageStore getMessageStore(){return messageStore;}public void setMessageStore(MessageStore messageStore){this.messageStore = messageStore;}}

3.编写test02.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%@ taglib uri="/struts-tags" prefix="s" %><%String path = request.getContextPath();String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()+ path + "/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><base href="<%=basePath%>"><title>My JSP 'test02.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"><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body><h1>Welcome To Struts 2!</h1><p><a href="<s:url action='hello'/>">Hello World</a></p></body></html>

4.编写HelloWorld.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags" %> <%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <base href="<%=basePath%>">        <title>My JSP 'HelloWorld.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"><!--<link rel="stylesheet" type="text/css" href="styles.css">-->  </head>    <body>        <h2><s:property value="messageStore.message" /></h2>   </body></html>

5.结构如图

6.运行

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