關鍵字: provider org .apache .xalan .processor .transformerfactoryimpl n
完整的Exception：
Exception starting filter struts2
javax.xml.transform.TransformerFactoryConfigurationError: Provider org .apache .xalan .processor .TransformerFactoryImpl not found
at javax.xml.transform.TransformerFactory.newInstance(Unknown Source)
at com.opensymphony.xwork2.util.DomHelper$DOMBuilder.<clinit>(DomHelper.java :167)
at com.opensymphony.xwork2.util.DomHelper.parse(DomHelper.java :115)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles(XmlConfigurationProvider.java :786)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadDocuments(XmlConfigurationProvider.java :132)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.init(XmlConfigurationProvider.java :100)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reload(DefaultConfiguration.java :130)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java :52)
at org .apache .struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java :398)
at org .apache .struts2.dispatcher.Dispatcher.init(Dispatcher.java :455)
at org .apache .struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java :201)
at org .apache .catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java :225)
at org .apache .catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java :308)
at org .apache .catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java :79)
at org .apache .catalina.core.StandardContext.filterStart(StandardContext.java :3698)
at org .apache .catalina.core.StandardContext.start(StandardContext.java :4349)
at org .apache .catalina.core.ContainerBase.addChildInternal(ContainerBase.java :823)
at org .apache .catalina.core.ContainerBase.addChild(ContainerBase.java :807)
at org .apache .catalina.core.StandardHost.addChild(StandardHost.java :595)
at org .apache .catalina.core.StandardHostDeployer.install(StandardHostDeployer.java :277)
at org .apache .catalina.core.StandardHost.install(StandardHost.java :832)
at org .apache .catalina.startup.HostConfig.deployDirectories(HostConfig.java :701)
at org .apache .catalina.startup.HostConfig.deployApps(HostConfig.java :432)
at org .apache .catalina.startup.HostConfig.start(HostConfig.java :983)
at org .apache .catalina.startup.HostConfig.lifecycleEvent(HostConfig.java :349)
at org .apache .catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java :119)
at org .apache .catalina.core.ContainerBase.start(ContainerBase.java :1091)
at org .apache .catalina.core.StandardHost.start(StandardHost.java :789)
at org .apache .catalina.core.ContainerBase.start(ContainerBase.java :1083)
at org .apache .catalina.core.StandardEngine.start(StandardEngine.java :478)
at org .apache .catalina.core.StandardService.start(StandardService.java :480)
at org .apache .catalina.core.StandardServer.start(StandardServer.java :2313)
at org .apache .catalina.startup.Catalina.start(Catalina.java :556)
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 :287)
at org .apache .catalina.startup.Bootstrap.main(Bootstrap.java :425)
錯誤原因：
認爲是由於jdk1.5 與 tomcat5.0之間的關於 TransformerFactoryImpl 類的衝突造成的。
tomcat-5.0.28/common/endorsed下有兩個jar包：xercesImpl.jar和xml-apis.jar，其中的類 javax.xml.transform.TransformerFactory 與jdk1.5中的類org .apache .xalan .processor .TransformerFactoryImpl 其實是同一個類。
in tomcat java is called with the following argument:
-Djava.endorsed.dirs="X:/my_app/Portal/tomcat/common/endorsed"
In this directory you find two jar files: xercesImpl.jar and xml-apis.jar needed by tomcat and that must be loaded before all xmsl stuff present in the jdk (1.4 naming problem). And in the file xml-apis.jar the TransformerFactoryImpl is set to "org .apache .xalan .processor .TransformerFactoryImpl ".
解決辦法：
1. 將xml-apis.jar移出endorsed文件夾。
2. 用xalan 系列jar包替換原來的xercesImpl.jar和xml-apis.jar。
xalan 系列jar包：serializer.jar、xalan .jar、xercesImpl.jar和xml-apis.jar。
3. For other application, just check this file or dom3-xml-apis.jar in your class path.
如果你不會這樣做，就使用1.4的JDK和tomcat5.0
或者JDK1.5 tomcat5.5 這2種類型纔是匹配的