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java.lang.UnsupportedClassVersionError: Bad version number in .class file (

2011-11-25 
编译时出现严重错误2011-8-31 1:10:44 org.apache.catalina.core.AprLifecycleListener init信息: The APR

编译时出现严重错误
2011-8-31 1:10:44 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: C:\Program Files\Java\jdk1.5.0_12\bin;C:\Program Files\Apache Software Foundation\Tomcat 5.5\bin
2011-8-31 1:10:44 org.apache.coyote.http11.Http11BaseProtocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2011-8-31 1:10:44 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 1234 ms
2011-8-31 1:10:45 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2011-8-31 1:10:45 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/5.5.33
2011-8-31 1:10:45 org.apache.catalina.core.StandardHost start
信息: XML validation disabled
2011-8-31 1:10:47 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Parsing configuration file [struts-default.xml]
2011-8-31 1:10:47 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Unable to locate configuration files of the name struts-plugin.xml, skipping
2011-8-31 1:10:47 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Parsing configuration file [struts-plugin.xml]
2011-8-31 1:10:47 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Parsing configuration file [struts.xml]
2011-8-31 1:10:49 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.bjsxt.bbs2009.action.CategoryAction)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1964)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:933)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1405)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1284)
at com.opensymphony.xwork2.util.ClassLoaderUtil.loadClass(ClassLoaderUtil.java:138)
at com.opensymphony.xwork2.ObjectFactory.getClassInstance(ObjectFactory.java:96)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.verifyAction(XmlConfigurationProvider.java:398)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:355)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:460)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:265)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:111)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:189)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:360)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:403)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:48)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:221)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:302)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:78)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3666)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4258)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)


at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:980)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:943)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:500)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1203)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:319)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
2011-8-31 1:10:49 org.apache.catalina.core.StandardContext start
严重: Error filterStart
2011-8-31 1:10:49 org.apache.catalina.core.StandardContext start
严重: Context [/struts2_3000_BBS2009_06] startup failed due to previous errors
2011-8-31 1:10:50 org.apache.coyote.http11.Http11BaseProtocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2011-8-31 1:10:50 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2011-8-31 1:10:50 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/47 config=null
2011-8-31 1:10:50 org.apache.catalina.storeconfig.StoreLoader load
信息: Find registry server-registry.xml at classpath resource
2011-8-31 1:10:50 org.apache.catalina.startup.Catalina start
信息: Server startup in 6031 ms


[解决办法]
java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class com.bjsxt.bbs2009.action.CategoryAction)

jdk版本问题。
[解决办法]
environments was not found on the java.library.path: C:\Program Files\Java\jdk1.5.0_12\bin;C:\Program Files\Apache Software Foundation\Tomcat 5.5\bin
运行环境 查看一下 估计是版本问题

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