<?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">

  <display-name></display-name>    

  <filter>

      <filter-name>struts2</filter-name>

      <!-- 可在引用的jar包struts2-core-2.3.15.3.jar下的 org.apache.struts2.dispatcher.ng.filter找到-->

      <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>

</web-app>

    <package name="Menu" namespace="/Menu" extends="struts-default">

       <action name="mainpage" class="com.almostman.action.MainPageAction">

         <result name="success">/success.jsp</result>

         <result name="input">/input.jsp</result>

       </action>

    </package> 

package com.almostman.action;

import org.apache.struts2.convention.annotation.Action;

import org.apache.struts2.convention.annotation.Namespace;

import org.apache.struts2.convention.annotation.ParentPackage;

import org.apache.struts2.convention.annotation.Result;

import com.opensymphony.xwork2.ActionSupport;

public class MainPageAction extends ActionSupport{

    /**

     *

     */

    private static final long serialVersionUID = 1L;

    public String add() throws Exception {

        if("admin".equals(username) && "admin".equals(password)){

            return SUCCESS;

        }

        return INPUT;

    }

    private String username;

    private String password;

    public String getUsername() {

        return username;

    }

    public void setUsername(String username) {

        this.username = username;

    }

    public String getPassword() {

        return password;

    }

    public void setPassword(String password) {

        this.password = password;

    }

}