Error loading WebappClassLoader怎么处理？
严重: Error loading WebappClassLoader delegate: false repositories: /WEB-INF/classes/ ----------> Parent Classloader: org.apache.catalina.loader.StandardClassLoader@3479e304 org.apache.struts.action.ActionServlet java.lang.ClassNotFoundException: org.apache.struts.action.ActionServlet at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1083) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:981) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4042) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4348) 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:525) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) 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:516) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:566) 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:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) 2016-10-10 17:49:36 org.apache.catalina.core.StandardContext loadOnStartup 严重: Servlet /test01 threw load() exception java.lang.ClassNotFoundException: org.apache.struts.action.ActionServlet at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1083) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:981) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4042) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4348) 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:525) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) 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:516) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:566) 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:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) 2016-10-10 17:49:37 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info 信息: Parsing configuration file [struts-default.xml] 2016-10-10 17:49:37 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info 信息: Parsing configuration file [struts-plugin.xml] 2016-10-10 17:49:37 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info 信息: Parsing configuration file [struts.xml] 2016-10-10 17:49:38 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info 信息: Parsing configuration file [struts-default.xml] 2016-10-10 17:49:38 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info 信息: Parsing configuration file [struts-plugin.xml] 2016-10-10 17:49:38 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info 信息: Parsing configuration file [struts.xml] 2016-10-10 17:49:39 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info 信息: Parsing configuration file [struts-default.xml] 2016-10-10 17:49:39 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info 信息: Parsing configuration file [struts-plugin.xml] 2016-10-10 17:49:39 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info 信息: Parsing configuration file [struts.xml] 2016-10-10 17:49:39 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info 信息: Overriding property struts.i18n.reload - old value: false new value: true 2016-10-10 17:49:39 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info 信息: Overriding property struts.configuration.xml.reload - old value: false new value: true 2016-10-10 17:49:41 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info 信息: Parsing configuration file [struts-default.xml] 2016-10-10 17:49:41 com.opensymphony.xwork2.util.logging.commons.CommonsLogger error 严重: Dispatcher initialization failed Unable to load configuration. - bean - jar:file:/C:/Users/zyc/Workspaces/MyEclipse%2010/.metadata/.me_tcat/webapps/test07/WEB-INF/lib/struts2-core-2.3.24.1.jar!/struts-default.xml:57:72 at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:69) at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:371) at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:415) 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:275) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3693) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4340) 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:525) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) 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:516) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:566) 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:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Caused by: Unable to load bean: type: class:com.opensymphony.xwork2.ObjectFactory - bean - jar:file:/C:/Users/zyc/Workspaces/MyEclipse%2010/.metadata/.me_tcat/webapps/test07/WEB-INF/lib/struts2-core-2.3.24.1.jar!/struts-default.xml:57:72 at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:232) at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:101) at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:180) at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66) ... 31 more Caused by: Bean type class com.opensymphony.xwork2.ObjectFactory with the name struts has already been loaded by bean - jar:file:/C:/Users/zyc/Workspaces/MyEclipse%2010/.metadata/.me_tcat/webapps/test07/WEB-INF/lib/struts2-core-2.2.1.jar!/struts-default.xml:30:124 - bean - jar:file:/C:/Users/zyc/Workspaces/MyEclipse%2010/.metadata/.me_tcat/webapps/test07/WEB-INF/lib/struts2-core-2.3.24.1.jar!/struts-default.xml:57:72 at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:216) ... 34 more 2016-10-10 17:49:41 org.apache.catalina.core.StandardContext filterStart 严重: Exception starting filter struts2 Unable to load configuration. - bean - jar:file:/C:/Users/zyc/Workspaces/MyEclipse%2010/.metadata/.me_tcat/webapps/test07/WEB-INF/lib/struts2-core-2.3.24.1.jar!/struts-default.xml:57:72 at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:428) 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:275) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3693) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4340) 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:525) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) 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:516) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:566) 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:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Caused by: Unable to load configuration. - bean - jar:file:/C:/Users/zyc/Workspaces/MyEclipse%2010/.metadata/.me_tcat/webapps/test07/WEB-INF/lib/struts2-core-2.3.24.1.jar!/struts-default.xml:57:72 at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:69) at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:371) at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:415) ... 29 more Caused by: Unable to load bean: type: class:com.opensymphony.xwork2.ObjectFactory - bean - jar:file:/C:/Users/zyc/Workspaces/MyEclipse%2010/.metadata/.me_tcat/webapps/test07/WEB-INF/lib/struts2-core-2.3.24.1.jar!/struts-default.xml:57:72 at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:232) at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:101) at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:180) at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66) ... 31 more Caused by: Bean type class com.opensymphony.xwork2.ObjectFactory with the name struts has already been loaded by bean - jar:file:/C:/Users/zyc/Workspaces/MyEclipse%2010/.metadata/.me_tcat/webapps/test07/WEB-INF/lib/struts2-core-2.2.1.jar!/struts-default.xml:30:124 - bean - jar:file:/C:/Users/zyc/Workspaces/MyEclipse%2010/.metadata/.me_tcat/webapps/test07/WEB-INF/lib/struts2-core-2.3.24.1.jar!/struts-default.xml:57:72 at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:216) ... 34 more
什么原因啊，求大神指教！！！！
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