Struts2.0报错HTTP Status 404 - /Struts2_HelloWorld/HelloWorld

HTTP Status 404 - /Struts2_HelloWorld/HelloWorld

---

type Status report

message /Struts2_HelloWorld/HelloWorld

description The requested resource (/Struts2_HelloWorld/HelloWorld) is not available.

---

Apache Tomcat/6.0.13

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开发环境：

JDK：jdk1.5.0_11

Tomcat：apache-tomcat-6.0.13

Eclipse Platform：Version: 3.3.0 Build id: I20070625-1500 

Struts：struts-2.0.9

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web.xml

    Struts Blank

   
        struts2
        org.apache.struts2.dispatcher.FilterDispatcher
   

   
        struts2
        /*
   

   
        index.html
   

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struts.xml

        "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
        "http://struts.apache.org/dtds/struts-2.0.dtd">

 
 
  
   HelloWorld.jsp
  
 

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SayHello.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
 pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="s" uri="/struts-tags"%>

Say "Hello" to:

            Name:
 

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HelloWorld.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
 pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="s" uri="/struts-tags"%>

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HelloWorld.java

package tutorial;

import com.opensymphony.xwork2.ActionSupport;

public class HelloWorld extends ActionSupport {
 private static final long serialVersionUID = 1L;

 private String name;

 public String getName() {
  return name;
 }

 public void setName(String name) {
  this.name = name;
 }

 public String execute() {
  name = "Hello, " + name + "!";
  return SUCCESS;
 }
}
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运行http://localhost:8080/Struts2_HelloWorld/SayHello.jsp，就会报HTTP Status 404 - /Struts2_HelloWorld/HelloWorld的错误。

从http://localhost:8080/Struts2_HelloWorld/HelloWorld.action可以看到：

HTTP Status 500 -

---

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

There is no Action mapped for namespace / and action name HelloWorld. - [unknown location]
	com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:186)
	org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:41)
	org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:494)
	org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)

 

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.13 logs.

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解决：struts.xml文件名错误，改正后http://localhost:8080/Struts2_HelloWorld/HelloWorld.action可以看到

Hello, null!