HTTP Status 404 - /HelloWorld/HelloWorld.action,该怎么处理

2012-01-09

HTTP Status 404 - /HelloWorld/HelloWorld.action在eclipse中创建一个Dynamic Web Project。具体内容如下：

HTTP Status 404 - /HelloWorld/HelloWorld.action
在eclipse中创建一个Dynamic Web Project。具体内容如下：
HelloWorld.java

Java code

public class HelloWorld{    private String username;    public void setUsername(String username)    {        this.username = username;            }    public String getUsername()    {        return username;    }    public String execute()    {        if(getUsername().equals(""))        {            System.out.println("no String input!");            return "error";         }        else        {            System.out.println(getUsername());            return "success";        }    }}

web.xml

XML code

<?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">    <display-name>Struts Blank</display-name>    <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>    <welcome-file-list>        <welcome-file>index.jsp</welcome-file>    </welcome-file-list></web-app>

struts.xml

XML code

<?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>    <package name="default" namespace="/" extends="struts-default">        <action name="index" class="HelloWorld">            <result name="success">success.jsp</result>            <result name="error">error.jsp</result>        </action>    </package></struts>

index.jsp

HTML code

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"    pageEncoding="ISO-8859-1"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Insert title here</title></head><body>Hello World!<form method="post" action="HelloWorld.action">    <input type="text" name="username" />    <input type="submit" name="submit" /></form></body></html>

运行后，出现下面的错误：
HTTP Status 404 - /HelloWorld/HelloWorld.action

--------------------------------------------

type Status report

message /HelloWorld/HelloWorld.action

description The requested resource (/HelloWorld/HelloWorld.action) is not available.

--------------------------------------------

Apache Tomcat/7.0.21

不知是何故？？

[解决办法]
<form method="post" action="index.action">

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HTTP Status 404 - /HelloWorld/HelloWorld.action,该怎么处理