struts1新手求助

启动Tomcat服务器的时候出现如下错误，检查项目已经导入struts.jar包。不知道是神马情况，望高手指教
2012-6-9 16:44:21 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8086
2012-6-9 16:44:21 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 828 ms
2012-6-9 16:44:21 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2012-6-9 16:44:21 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/5.5.9
2012-6-9 16:44:21 org.apache.catalina.core.StandardHost start
信息: XML validation disabled
2012-6-9 16:44:22 org.apache.catalina.core.ApplicationContext log
信息: org.apache.webapp.balancer.BalancerFilter: init(): ruleChain: [org.apache.webapp.balancer.RuleChain: [org.apache.webapp.balancer.rules.URLStringMatchRule: Target string: News / Redirect URL: http://www.cnn.com], [org.apache.webapp.balancer.rules.RequestParameterRule: Target param name: paramName / Target param value: paramValue / Redirect URL: http://www.yahoo.com], [org.apache.webapp.balancer.rules.AcceptEverythingRule: Redirect URL: http://jakarta.apache.org]]
2012-6-9 16:44:22 org.apache.catalina.startup.HostConfig deployWAR
信息: Deploying web application archive jsp-examples.war
2012-6-9 16:44:23 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2012-6-9 16:44:23 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2012-6-9 16:44:23 org.apache.catalina.startup.HostConfig deployWAR
信息: Deploying web application archive ROOT.war
2012-6-9 16:44:23 org.apache.catalina.startup.HostConfig deployWAR
信息: Deploying web application archive servlets-examples.war
2012-6-9 16:44:23 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2012-6-9 16:44:23 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2012-6-9 16:44:23 org.apache.catalina.startup.HostConfig deployWAR
信息: Deploying web application archive tomcat-docs.war
2012-6-9 16:44:23 org.apache.catalina.startup.HostConfig deployWAR
信息: Deploying web application archive webdav.war
2012-6-9 16:44:24 org.apache.catalina.core.ApplicationContext log
信息: Marking servlet action as unavailable
2012-6-9 16:44:24 org.apache.catalina.core.ApplicationContext log
严重: Error loading WebappClassLoader
  delegate: false
  repositories:
    /WEB-INF/classes/
----------> Parent Classloader:
org.apache.catalina.loader.StandardClassLoader@3cc262
 org.apache.struts.action.ActionServlet
java.lang.ClassNotFoundException: org.apache.struts.action.ActionServlet
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1332)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1181)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1027)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:925)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3857)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4118)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:894)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:857)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:475)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1102)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1020)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1012)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
at org.apache.catalina.core.StandardService.start(StandardService.java:450)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:683)
at org.apache.catalina.startup.Catalina.start(Catalina.java:537)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:271)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:409)
2012-6-9 16:44:24 org.apache.catalina.core.StandardContext loadOnStartup
严重: Servlet /b threw load() exception
java.lang.ClassNotFoundException: org.apache.struts.action.ActionServlet
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1332)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1181)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1027)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:925)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3857)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4118)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:894)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:857)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:475)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1102)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1020)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1012)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
at org.apache.catalina.core.StandardService.start(StandardService.java:450)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:683)
at org.apache.catalina.startup.Catalina.start(Catalina.java:537)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:271)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:409)
2012-6-9 16:44:27 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-8086
2012-6-9 16:44:27 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8006
2012-6-9 16:44:27 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/15  config=null
2012-6-9 16:44:27 org.apache.catalina.storeconfig.StoreLoader load
信息: Find registry server-registry.xml at classpath resource
2012-6-9 16:44:27 org.apache.catalina.startup.Catalina start
信息: Server startup in 6078 ms