struts2.2.3.1配置有关问题

<?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">  <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list>  <filter>  <filter-name>struts</filter-name>  <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>  </filter>  <filter-mapping>  <filter-name>struts</filter-name>  <url-pattern>/*</url-pattern>  </filter-mapping></web-app>

<?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="struts2" namespace="/" extends="struts-default">        <action name="login" class="LoginAction">            <result name="success">/success.jsp</result>            <result name="fail" type="redirect">/login.jsp</result>        </action>    </package></struts>[code=Java]public class LoginAction {    private String name;    private String psd;    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getPsd() {        return psd;    }    public void setPsd(String psd) {        this.psd = psd;    }    public String execute() {        if(name.equals("dai")&&psd.equals("dai")) {            return "success";        }        return "fail";    }}login.jsp[code=Java]public class LoginAction {    private String name;    private String psd;    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getPsd() {        return psd;    }    public void setPsd(String psd) {        this.psd = psd;    }    public String execute() {        if(name.equals("dai")&&psd.equals("dai")) {            return "success";        }        return "fail";    }}