初学Struts2，总是出现404问题，不知道是哪里写错了，实在是找不到，求大神们帮忙。。

Question

jsp页：

Struts.xml:
<?xml version="1.0" encoding="GBK"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
"http://struts.apache.org/dtds/struts-2.1.7.dtd">


<!-- Struts2的所有Action都需位于package下 -->

<!-- 定义名为login的Action，其实现类为LoginAction类 -->

<!-- 如果处理结果返回error，对应/error.jsp视图资源 -->
/error.jsp
<!-- 如果处理结果返回success，对应/welcome.jsp视图资源 -->
/welcome.jsp

 action 类：
 package com.struts.logindemo;

import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionSupport;


public class loginDemoAction extends ActionSupport{

    String username ;
    String userpassword ;
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getUserpassword() {
        return userpassword;
    }
    public void setUserpassword(String userpassword) {
        this.userpassword = userpassword;
    }
    public String execute()
    {
        System.out.println("================================");
        System.out.println("用户名是："+username);
        if(username.equals("lee"))
            {
                System.out.println("+++++++++++++++++++++++");
                return SUCCESS;
            }
        else
            return ERROR;
    }
}

Answer 1

jsp页：