spring struts2整合后tomcat启动错，页面404.

我只整合spring和strurs2，页面404打不开，运行tomcat报错：
2011-11-7 11:24:48 org.apache.catalina.core.StandardContext start
严重: Error listenerStart
2011-11-7 11:24:48 org.apache.catalina.core.StandardContext start
严重: Context [/springStruts] startup failed due to previous errors
2011-11-7 11:24:49 org.apache.coyote.http11.Http11AprProtocol start使用myeclipse5.5自动加入spring aop、core、web的jar包，然后拷贝strurs2包如图：web.xml:<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" 
xmlns="http://java.sun.com/xml/ns/j2ee" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  <context-param>
   <param-name>contextConfigLocation</param-name>
   <param-value>applicationContext.xml</param-value>
  </context-param>
  <listener>
   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener> 
</web-app>
struts.xml<?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>
    <constant name="struts.objectFactory" value="spring" />
    </struts>
applicationContext.xml是自动生成的，没改<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
</beans>