struts2配置

[img]http://img.my.csdn.net/uploads/201205/30/1338368707_9167.png[/img]
web.xml
<?xml version="1.0" encoding="UTF-8"?>
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_3_0.xsd">

struts2
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter

struts2
/*

index.jsp

struts.xml
<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">

index.jsp
login.jsp
login.jsp

LoginAction.java
package test;

import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport {

/**
 * 
 */
private static final long serialVersionUID = -5102850352318204106L;
public String username;
public String password;

public String execute(){
    if(!username.equals("admin")){
        super.addFieldError("username：", "用户名错误");
        return ERROR;
    }
    if(!username.equals("001")){
        super.addFieldError("password：", "密码错误");
        return ERROR;
    }
    return SUCCESS;
}
public void validate(){
    if(username == null||username.length() == 0){
        super.addActionError("用户名不能为空！");
    }
}

}

访问方式：http://localhost:8080/test/login.jsp
问题：404错误，路径有什么问题？求指点

解决404问题有几个步骤.
1.看tomcat是否正常启动,访问tomcat欢迎页是否成功.
2.看访问的项目名字是否正确.
3.如果直接访问jsp,看jsp路径是否正确.
4.如果访问Action,看是否进入Action方法(有时找不到返回的页面也报404).
5.看返回的页面是否正确.