我的应用程序在使用 tomcat 时出现异常答案

【问题标题】：my application gives exception when using tomcat我的应用程序在使用 tomcat 时出现异常
【发布时间】：2012-08-09 07:30:23
【问题描述】：

我正在使用 tomcat 7 并且应用程序给出以下异常请帮助，我已经使用 tomcat 6 它没有任何问题，我正在使用 eclipse indigo

java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/RTM14]]
        at java.util.concurrent.FutureTask$Sync.innerGet(Unknown Source)
        at java.util.concurrent.FutureTask.get(Unknown Source)
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1142)
        at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:785)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1595)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1585)
        at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
    Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/RTM14]]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
        ... 7 more
    Caused by: java.lang.NoClassDefFoundError: CategoryItemRenderer
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
        at java.lang.Class.getDeclaredMethods(Unknown Source)
        at org.apache.catalina.util.Introspection.getDeclaredMethods(Introspection.java:108)
        at org.apache.catalina.startup.WebAnnotationSet.loadMethodsAnnotation(WebAnnotationSet.java:279)
        at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:141)
        at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:67)
        at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:382)
        at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:858)
        at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:346)
        at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
        at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5172)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        ... 7 more
    Caused by: java.lang.ClassNotFoundException: CategoryItemRenderer
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1711)
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1556)
        ... 21 more
    Aug 9, 2012 12:52:31 PM org.apache.catalina.core.ContainerBase startInternal
    SEVERE: A child container failed during start
    java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
        at java.util.concurrent.FutureTask$Sync.innerGet(Unknown Source)
        at java.util.concurrent.FutureTask.get(Unknown Source)
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1142)
        at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:302)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:732)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:675)
        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:322)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:451)
    Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1595)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1585)
        at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
    Caused by: org.apache.catalina.LifecycleException: A child container failed during start
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1150)
        at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:785)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        ... 7 more
    Aug 9, 2012 12:52:31 PM org.apache.catalina.startup.Catalina start
    SEVERE: Catalina.start: 
    org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:675)
        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:322)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:451)
    Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
        at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:732)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        ... 7 more
    Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
        at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        ... 9 more
    Caused by: org.apache.catalina.LifecycleException: A child container failed during start
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1150)
        at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:302)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        ... 11 more

我准备提供有关申请的其他信息，但我不知道该提供什么提前谢谢

【问题讨论】：

Caused by: java.lang.NoClassDefFoundError: CategoryItemRenderer 表示 CategoryItemRenderer 不在您的类路径中。将其添加到您的类路径中。

标签： java jakarta-ee tomcat7

【解决方案1】：

您拥有java.lang.ClassNotFoundException。您似乎没有提供CategoryItemRenderer 的jar，我猜它来自您的类路径中的jfreechart。如果您使用jfreechart API，请确保您的类路径中有它。确保您的类路径中有提供CategoryItemRenderer 的jar（WEB-INF 下的lib 目录）。

【讨论】：