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java監聽文件Error listenerStart錯誤

2013-11-23 19:10:32  來源: Java核心技術 

  最近項目中采用開啟java線程來監聽文件目錄在本地測試正常啟動但是當采用maven中的mvn tomcat:deploy部署到tomcat中時就報如下錯誤

  嚴重: Error listenerStart
    :: orgreStandardContext start
    嚴重: Context [/cms] startup failed due to previous errors

   :: DEBUG (cmstempletTempletController:) – >>>>監聽停止了!!
    :: orgreStandardContext listenerStop
    嚴重: Exception sending context destroyed event to listener instance of class ut
    iltoolsThemePicFileListenerTools
    javalangNullPointerException
            at utiltoolsThemePicFntextDestroyed(ThemePicFileLis
    tenerToolsjava:)
            at orgreStandardContextlistenerStop(StandardContext
    java:)
            at orgreStandardContextstop(StandardContextjava:
    )
            at orgreStandardContextstart(StandardContextjava:
    )
            at orgreContainerBasestart(ContainerBasejava:)

  at orgreStandardHoststart(StandardHostjava:)
            at orgreContainerBasestart(ContainerBasejava:)

  at orgreStandardEnginestart(StandardEnginejava:
    )
            at orgapachecatalinastartupEmbeddedstart(Embeddedjava:)
            at dehausmojotomcatAbstractRunMojostartContainer(AbstractRunMo
    jojava:)
            at dehausmojotomcatAbstractRunMojoexecute(AbstractRunMojojava
    :)
            at orgapachemavenpluginDefaultPluginManagerexecuteMojo(DefaultPlugi
    nManagerjava:)
            at orgapachemavenlifecycleDefaultLifecycleExecutorexecuteGoals(Defa
    ultLifecycleExecutorjava:)
            at orgapachemavenlifecycleDefaultLifecycleExecutorexecuteStandalone
    Goal(DefaultLifecycleExecutorjava:)
            at orgapachemavenlifecycleDefaultLifecycleExecutorexecuteGoal(Defau
    ltLifecycleExecutorjava:)
            at orgapachemavenlifecycleDefaultLifecycleExecutorexecuteGoalAndHan
    dleFailures(DefaultLifecycleExecutorjava:)
            at orgapachemavenlifecycleDefaultLifecycleExecutorexecuteTaskSegmen
    ts(DefaultLifecycleExecutorjava:)
            at orgapachemavenlifecycleDefaultLifecycleExecutorexecute(DefaultLi
    fecycleExecutorjava:)
            at orgapachemavenDefaultMavendoExecute(DefaultMavenjava:)
            at orgapachemavenDefaultMavenexecute(DefaultMavenjava:)
            at orgapachemavencliMavenClimain(MavenClijava:)
            at sunreflectNativeMethodAccessorImplinvoke(Native Method)
            at sunreflectNativeMethodAccessorImplinvoke(NativeMethodAccessorImpl
    java:)
            at sunreflectDelegatingMethodAccessorImplinvoke(DelegatingMethodAcces
    sorImpljava:)
            at javalangreflectMethodinvoke(Methodjava:)
            at dehausclassworldsLauncherlaunchEnhanced(Launcherjava:)
            at dehausclassworldsLauncherlaunch(Launcherjava:)
            at dehausclassworldsLaunchermainWithExitCode(Launcherjava:)

  at dehausclassworldsLaunchermain(Launcherjava:)

  這個錯誤讓我郁悶了好久最後找到錯誤原因是因為監聽的文件夾下面沒有內容maven在發布項目的時候侯就不創建此文件夾當程序啟動的時候找不到此目錄此時監聽就會停止報以上錯誤

  解決辦法把監聽的目錄下面加上相關的內容利用maven發布版本的時候就可以創建監聽文件夾或在tomcat的工程下面手工創建監聽文件即可


From:http://tw.wingwit.com/Article/program/Java/hx/201311/26397.html
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