Struts2----HelloWorld

配置文件主要有

Struts.xml

web.xml

其中Stuts.xml

 1 <?xml version="1.0" encoding="UTF-8" ?>
 2 <!DOCTYPE struts PUBLIC
 3     "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
 4     "http://struts.apache.org/dtds/struts-2.3.dtd">
 5 
 6 <struts>
 7 
 8     <constant name="struts.devMode" value="true" /><!--true表示现在为开发模式 -->
 9     <!-- 即修改配置不需要重启服务器 -->
10     <package name="default" namespace="/" extends="struts-default">
11         <action name="hello">
12             <!-- result 即Action处理后返回给用户的师徒资源,下面配置了一个result -->
13             <!-- result不填写任何属性时,默认触发条件为SUCCESS -->
14             <result>/Hello.jsp</result>
15         </action>
16     </package>
17 
18 
19 </struts>

Web.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <web-app version="2.5" 
 3     xmlns="http://java.sun.com/xml/ns/javaee" 
 4     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 5     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
 6     http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
 7   <display-name></display-name>    
 8 
 9       <!-- 加载Struts 2的核心控制器 用来对事件作出处理 -->
10       <filter>
11         <filter-name>struts2</filter-name>
12         <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
13     </filter>
14     <!-- 使用通配符/*来拦截所有的URL请求,保证用户请求都被Struts2截获 -->
15     <filter-mapping>
16         <filter-name>struts2</filter-name>
17         <url-pattern>/*</url-pattern>
18     </filter-mapping>
19 
20 </web-app>

Hello.jsp

 1 <%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
 2 <%
 3 String path = request.getContextPath();
 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 5 %>
 6 
 7 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 8 <html>
 9   <head>
10     <base href="<%=basePath%>">
11     
12     <title>Struts2</title>
13     <meta http-equiv="pragma" content="no-cache">
14     <meta http-equiv="cache-control" content="no-cache">
15     <meta http-equiv="expires" content="0">    
16     <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
17     <meta http-equiv="description" content="This is my page">
18     <!--
19     <link rel="stylesheet" type="text/css" href="styles.css">
20     -->
21   </head>
22   
23   <body>
24     Hello Struts2. <br>
25   </body>
26 </html>

当向浏览器输入地址时,根据域名进入package搜索对应action.而后执行result中相应的result

posted on 2012-10-15 15:10 elleniou 阅读(257) 评论(0) 编辑收藏举报

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