日期:2014-05-19  浏览次数:20725 次

Struts2的项目访问时出现404错误的问题。
本人新学Struts2,建立了第一个简单的项目Struts2_0100_Introduction,

struts.xml文件为:
<?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="false" />

  <include file="example.xml"/>



  <package name="default" namespace="/" extends="struts-default">
  <default-action-ref name="index" />
  <action name="index">
  <result type="redirectAction">
  <param name="actionName">HelloWorld</param>
  <param name="namespace">/example</param>
  </result>
  </action>
  </package>
-->

<package name="default" namespace="/" extends="struts-default">
  <action name="hello">
  <result>
  /Hello.jsp
  </result>
  </action>
  </package>
  <!-- Add packages here -->

</struts>

Hello.jsp文件为:
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
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>HelloStruts2</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>
  Hello Struts2 <br>
  </body>
</html>

web.xml文件为:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
xmlns="http://java.sun.com/xml/ns/javaee" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
http://java.sun.com/xml/ns/javaee/web-app_2_5.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