启动tomcat时 严重: Exception starting filter struts2
2011-9-5 16:56:09 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:\MyEclipse1\bin;D:\apache-tomcat-6.0.26\bin
2011-9-5 16:56:09 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2011-9-5 16:56:09 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 627 ms
2011-9-5 16:56:09 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2011-9-5 16:56:09 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.26
2011-9-5 16:56:09 org.apache.catalina.startup.HostConfig deployDescriptor
信息: Deploying configuration descriptor host-manager.xml
2011-9-5 16:56:09 org.apache.catalina.startup.HostConfig deployDescriptor
信息: Deploying configuration descriptor manager.xml
2011-9-5 16:56:09 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory docs
2011-9-5 16:56:10 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory examples
2011-9-5 16:56:10 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2011-9-5 16:56:10 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2011-9-5 16:56:10 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory ROOT
2011-9-5 16:56:10 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory yamato
2011-9-5 16:56:10 org.apache.catalina.loader.WebappClassLoader validateJarFile
信息: validateJarFile(D:\apache-tomcat-6.0.26\webapps\yamato\WEB-INF\lib\servlet-api-2.5-6.1.2rc0.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
2011-9-5 16:56:17 org.apache.catalina.core.StandardContext filterStart
严重: Exception starting filter struts2
java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class com.chamago.common.utils.Page)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2531)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1010)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1483)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1361)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
at java.lang.Class.privateGetPublicMethods(Unknown Source)
at java.lang.Class.getMethods(Unknown Source)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.getActionAnnotations(PackageBasedActionConfigBuilder.java:728)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildConfiguration(PackageBasedActionConfigBuilder.java:541)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildActionConfigs(PackageBasedActionConfigBuilder.java:318)
at org.apache.struts2.convention.ClasspathPackageProvider.loadPackages(ClasspathPackageProvider.java:53)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:204)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:374)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:418)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69)
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)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3838)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4488)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:519)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
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:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
2011-9-5 16:56:17 org.apache.catalina.core.StandardContext start
严重: Error filterStart
2011-9-5 16:56:17 org.apache.catalina.core.StandardContext start
严重: Context [/yamato] startup failed due to previous errors
2011-9-5 16:56:17 org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
严重: A web application created a ThreadLocal with key of type [null] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@d83365]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@164804]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed.
2011-9-5 16:56:17 org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
严重: A web application created a ThreadLocal with key of type [null] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@d21538]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@6f4652]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed.


[解决办法]
http://www.iteye.com/topic/1087380
看下这个。
[解决办法]
java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class com.chamago.common.utils.Page)

lz看到这个错误没，是因为我们使用高版本的JDK编译的Java class文件试图在较低版本的JVM上运行，所报的错误。