struts启动错误

2013-7-27 22:44:15 org.apache.catalina.core.AprLifecycleListener init
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:\Program Files\Java\jdk1.6.0\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;D:\Program Files\Java\jdk1.6.0\jre\bin;C:/Program Files/Java/jre6/bin/client;C:/Program Files/Java/jre6/bin;C:/Program Files/Java/jre6/lib/i386;C:\Program Files\AMD APP\bin\x86;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Windows7Master;C:\Program Files\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\;C:\Program Files\Microsoft SQL Server\100\DTS\Binn\;D:\Program Files\Java\jdk1.6.0\bin;C:\Program Files\IDM Computer Solutions\UltraEdit\;D:\eclipse;
2013-7-27 22:44:15 org.apache.tomcat.util.digester.SetPropertiesRule begin
警告: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:test' did not find a matching property.
2013-7-27 22:44:15 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2013-7-27 22:44:15 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 456 ms
2013-7-27 22:44:15 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2013-7-27 22:44:15 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.36
2013-7-27 22:44:16 org.apache.catalina.core.StandardContext filterStart
严重: Exception starting filter struts
java.lang.NoClassDefFoundError: com/opensymphony/xwork2/config/FileManagerProvider
	at org.apache.struts2.dispatcher.Dispatcher.init_FileManager(Dispatcher.java:336)
	at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:463)
	at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
	at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51)
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
	at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)