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私はEclipseでTomcatをうまく使っていました。サーバーを起動できなくなりました。起動しようとすると、次の例外が発生します。物事はうまくいっていました。私は何かを変えたことに気づいていませんが、明らかに何かが変わったのです。

Apr 7, 2012 12:28:29 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class org.apache.myfaces.webapp.StartupServletContextListener
java.lang.NoClassDefFoundError: org/apache/commons/digester/Digester
    at org.apache.myfaces.config.impl.digester.DigesterFacesConfigUnmarshallerImpl.<init>(DigesterFacesConfigUnmarshallerImpl.java:42)
    at org.apache.myfaces.config.FacesConfigurator.getUnmarshaller(FacesConfigurator.java:262)
    at org.apache.myfaces.config.FacesConfigurator.feedStandardConfig(FacesConfigurator.java:566)
    at org.apache.myfaces.config.FacesConfigurator.configure(FacesConfigurator.java:487)
    at org.apache.myfaces.webapp.AbstractFacesInitializer.buildConfiguration(AbstractFacesInitializer.java:296)
    at org.apache.myfaces.webapp.Jsp21FacesInitializer.initContainerIntegration(Jsp21FacesInitializer.java:73)
    at org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces(AbstractFacesInitializer.java:118)
    at org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized(StartupServletContextListener.java:111)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4779)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5273)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1566)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1556)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.digester.Digester
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1711)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1556)
    ... 18 more
Apr 7, 2012 12:28:29 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
Apr 7, 2012 12:28:29 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/webApp_appNameT] startup failed due to previous errors
Apr 7, 2012 12:28:29 PM org.apache.catalina.core.StandardContext listenerStop
SEVERE: Exception sending context destroyed event to listener instance of class org.apache.myfaces.webapp.StartupServletContextListener
java.lang.IllegalStateException: No Factories configured for this Application. This happens if the faces-initialization does not work at all - make sure that you properly include all configuration settings necessary for a basic faces application and that all the necessary libs are included. Also check the logging output of your web application and your container for any exceptions!
If you did that and find nothing, the mistake might be due to the fact that you use some special web-containers which do not support registering context-listeners via TLD files and a context listener is not setup in your web.xml.
A typical config looks like this;
<listener>
  <listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class>
</listener>

    at javax.faces.FactoryFinder.getFactory(FactoryFinder.java:172)
    at org.apache.myfaces.context.servlet.FacesContextImplBase.getApplication(FacesContextImplBase.java:131)
    at org.apache.myfaces.webapp.AbstractFacesInitializer._dispatchApplicationEvent(AbstractFacesInitializer.java:239)
    at org.apache.myfaces.webapp.AbstractFacesInitializer.destroyFaces(AbstractFacesInitializer.java:273)
    at org.apache.myfaces.webapp.StartupServletContextListener.contextDestroyed(StartupServletContextListener.java:153)
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4819)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5466)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:160)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1566)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1556)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Apr 7, 2012 12:28:29 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
SEVERE: The web application [/webApp_appNameT] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@1d98a]) and a value of type [org.apache.myfaces.config.RuntimeConfig] (value [org.apache.myfaces.config.RuntimeConfig@1712651]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
Apr 7, 2012 12:28:29 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
SEVERE: The web application [/webApp_appNameT] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@18aab40]) and a value of type [org.apache.myfaces.context.servlet.StartupFacesContextImpl] (value [org.apache.myfaces.context.servlet.StartupFacesContextImpl@f102d3]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
Apr 7, 2012 12:28:29 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
SEVERE: The web application [/webApp_appNameT] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@f07355]) and a value of type [org.apache.myfaces.context.servlet.StartupFacesContextImpl] (value [org.apache.myfaces.context.servlet.StartupFacesContextImpl@23f1bb]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
Apr 7, 2012 12:28:29 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Apr 7, 2012 12:28:29 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Apr 7, 2012 12:28:29 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 1756 ms
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2 に答える 2

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私も同じ問題を抱えていました。EclipseのWebappとTomcatは正常に動作し、その後Eclipseがフリーズしました。私はタスクマネージャーでそれを殺さなければなりませんでした。ただし、tomcatを再起動すると、上記のエラーjava.lang.NoClassDefFoundError：org / apache / commons / digester/Digesterが表示されました。

以前はWebアプリが正常に実行されていたため、意味がありませんでした。Eclipsetomcatwebappディレクトリをクリーンアップすることで解決しました。

  1. [サーバー]タブに移動します->Webアプリを右クリックします->モジュールディレクトリをクリーンアップします。
  2. [サーバー]タブに移動します->使用済みのTomcatインスタンスを右クリックします->クリーン...

その後、エラーは消え、webappは以前と同じように再び実行されました。

于 2012-09-20T13:54:10.713 に答える
3 
Caused by: java.lang.ClassNotFoundException: org.apache.commons.digester.Digester

これは、言及されたクラスがランタイムクラスパスにないことを示しています。パッケージ名が示すように、 http： //commons.apache.org/digesterで入手できるApacheCommonsDigesterです。JARファイルをダウンロードして、Webアプリケーションのランタイムクラスパスでカバーされているパスの1つ（など）にドロップすると、/WEB-INF/libこの問題は解消されます。

于 2012-04-07T16:34:38.007 に答える