java.lang.IllegalArgumentException(java EE开发中tomcat异常信息)

由于手动apache-tomcat-7.0.53\webapps\Struts2Demo 目录下的Struts2Demo文件删除了，再次启动就会报出java.lang.IllegalArgumentException: 异常信息。

该信息出现在信息的启动阶段。

java.lang.IllegalArgumentException: Document base C:\apache-tomcat-7.0.53\webapps\Struts2Demo does not exist or is not a readable directory

at org.apache.naming.resources.FileDirContext.setDocBase(FileDirContext.java:136)

at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:5089)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5269)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)

at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)

at java.util.concurrent.FutureTask.run(FutureTask.java:138)

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

at java.lang.Thread.run(Thread.java:619)

2014-12-8 23:14:33 org.apache.catalina.core.ContainerBase startInternal

严重: A child container failed during start

java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/Struts2Demo]]

at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)

at java.util.concurrent.FutureTask.get(FutureTask.java:83)

at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)

at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:799)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)

at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)

at java.util.concurrent.FutureTask.run(FutureTask.java:138)

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

at java.lang.Thread.run(Thread.java:619)

Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/Struts2Demo]]

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)

... 7 more

Caused by: org.apache.catalina.LifecycleException: Error in resourceStart()

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5270)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

... 7 more

2014-12-8 23:14:33 org.apache.catalina.core.StandardContext resourcesStart

严重: Error starting static Resources

java.lang.IllegalArgumentException: Document base C:\apache-tomcat-7.0.53\webapps\webDemo does not exist or is not a readable directory

at org.apache.naming.resources.FileDirContext.setDocBase(FileDirContext.java:136)

at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:5089)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5269)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)

at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)

at java.util.concurrent.FutureTask.run(FutureTask.java:138)

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

at java.lang.Thread.run(Thread.java:619)

2014-12-8 23:14:33 org.apache.catalina.core.ContainerBase startInternal

严重: A child container failed during start

java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/webDemo]]

at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)

at java.util.concurrent.FutureTask.get(FutureTask.java:83)

at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)

at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:799)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)

at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)

at java.util.concurrent.FutureTask.run(FutureTask.java:138)

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

at java.lang.Thread.run(Thread.java:619)

Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/webDemo]]

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)

... 7 more

Caused by: org.apache.catalina.LifecycleException: Error in resourceStart()

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5270)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

... 7 more

2014-12-8 23:14:33 org.apache.catalina.core.ContainerBase startInternal

严重: 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(FutureTask.java:222)

at java.util.concurrent.FutureTask.get(FutureTask.java:83)

at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)

at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:300)

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:731)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

at org.apache.catalina.startup.Catalina.start(Catalina.java:689)

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:321)

at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:455)

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:1559)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)

at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)

at java.util.concurrent.FutureTask.run(FutureTask.java:138)

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

at java.lang.Thread.run(Thread.java:619)

Caused by: org.apache.catalina.LifecycleException: A child container failed during start

at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1131)

at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:799)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

... 7 more

2014-12-8 23:14:33 org.apache.catalina.startup.Catalina start

严重: The required Server component failed to start so Tomcat is unable to 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:689)

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:321)

at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:455)

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:731)

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:1131)

at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:300)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

... 11 more

解决办法：

|-------删除server.xml文件中的对应删除文件的context标签中的属性值。

<Context docBase="HRSystem_Eclipse" path="/HRSystem_Eclipse" reloadable="true" source="org.eclipse.jst.jee.server:HRSystem_Eclipse"/>

<Context docBase="webDemo" path="/webDemo" reloadable="true" source="org.eclipse.jst.jee.server:webDemo"/>

<Context docBase="Struts2Demo" path="/Struts2Demo" reloadable="true" source="org.eclipse.jst.jee.server:Struts2Demo"/>

对于该异常的出现很容易由于在手动配置server.xml文件的时候Context配置错误，指向的项目文件不存在，再者就会在webapps目录中删除了sever.xml中context标签中已经存在的项目，这样tomcat在启动的时候无法加载到配置文件中指定的项目就会抛出该异常！！！！

我并没有手动配置过Context标签，这个标签是在什么时候被写入到配置文件中的还请各位大神留下正解！谢谢！！！！！