使用Eclipse启动Tomcat失败。求解决方法

以浪为码 2015-10-24 10:40:31
之前一直都是好好的，不知道怎么突然就不行了，Java，Tomcat,Eclipse,都重新安装配置过了，还是不行，难道要让我重装系统吗？求解啊！
这是Eclipse控制台的输出：
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[/jsp_jdbc_example]]

	at java.util.concurrent.FutureTask.report(Unknown Source)

	at java.util.concurrent.FutureTask.get(Unknown Source)

	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916)

	at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:871)

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

	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408)

	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)

	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[/jsp_jdbc_example]]

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

	... 6 more

Caused by: java.lang.IllegalArgumentException: The servlets named [ShowByPageServlet] and [showbypage.ShowByPageServlet] are both mapped to the url-pattern [/ShowByPageServlet] which is not permitted

	at org.apache.tomcat.util.descriptor.web.WebXml.addServletMapping(WebXml.java:308)

	at org.apache.catalina.startup.ContextConfig.processAnnotationWebServlet(ContextConfig.java:2342)

	at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2024)





十月 24, 2015 10:16:05 上午 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.report(Unknown Source)

	at java.util.concurrent.FutureTask.get(Unknown Source)

	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916)

	at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)

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

	at org.apache.catalina.core.StandardService.startInternal(StandardService.java:439)

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

	at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:769)

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

	at org.apache.catalina.startup.Catalina.start(Catalina.java:625)

	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:351)

	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:485)

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:1408)

	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)

	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:924)

	at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:871)

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

	... 6 more



十月 24, 2015 10:16:05 上午 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:625)

	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:351)

	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:485)

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:769)

	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:439)

	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:924)

	at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)

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

	... 11 more



十月 24, 2015 10:16:05 上午 org.apache.coyote.AbstractProtocol pause

信息: Pausing ProtocolHandler ["http-nio-8080"]

十月 24, 2015 10:16:05 上午 org.apache.coyote.AbstractProtocol pause

信息: Pausing ProtocolHandler ["ajp-nio-8009"]

十月 24, 2015 10:16:05 上午 org.apache.catalina.core.StandardService stopInternal

信息: Stopping service Catalina

十月 24, 2015 10:16:05 上午 org.apache.coyote.AbstractProtocol destroy

信息: Destroying ProtocolHandler ["http-nio-8080"]

十月 24, 2015 10:16:05 上午 org.apache.coyote.AbstractProtocol destroy

严重: Failed to destroy end point associated with ProtocolHandler ["http-nio-8080"]

java.lang.NullPointerException

	at org.apache.tomcat.util.net.NioEndpoint.releaseCaches(NioEndpoint.java:304)

	at org.apache.tomcat.util.net.NioEndpoint.unbind(NioEndpoint.java:480)

	at org.apache.tomcat.util.net.AbstractEndpoint.destroy(AbstractEndpoint.java:818)

	at org.apache.coyote.AbstractProtocol.destroy(AbstractProtocol.java:532)

	at org.apache.catalina.connector.Connector.destroyInternal(Connector.java:1023)

	at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:305)

	at org.apache.catalina.core.StandardService.destroyInternal(StandardService.java:588)

	at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:305)

	at org.apache.catalina.core.StandardServer.destroyInternal(StandardServer.java:859)

	at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:305)

	at org.apache.catalina.startup.Catalina.start(Catalina.java:629)

	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:351)

	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:485)



十月 24, 2015 10:16:05 上午 org.apache.coyote.AbstractProtocol destroy

信息: Destroying ProtocolHandler ["ajp-nio-8009"]

十月 24, 2015 10:16:05 上午 org.apache.coyote.AbstractProtocol destroy

严重: Failed to destroy end point associated with ProtocolHandler ["ajp-nio-8009"]

java.lang.NullPointerException

	at org.apache.tomcat.util.net.NioEndpoint.releaseCaches(NioEndpoint.java:304)

	at org.apache.tomcat.util.net.NioEndpoint.unbind(NioEndpoint.java:480)

	at org.apache.tomcat.util.net.AbstractEndpoint.destroy(AbstractEndpoint.java:818)

	at org.apache.coyote.AbstractProtocol.destroy(AbstractProtocol.java:532)

	at org.apache.catalina.connector.Connector.destroyInternal(Connector.java:1023)

	at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:305)

	at org.apache.catalina.core.StandardService.destroyInternal(StandardService.java:588)

	at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:305)

	at org.apache.catalina.core.StandardServer.destroyInternal(StandardServer.java:859)

	at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:305)

	at org.apache.catalina.startup.Catalina.start(Catalina.java:629)

	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:351)

	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:485)

还有Eclipse的提示窗口：
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dracularking 2015-10-25
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应该是tomcat启动时两个工程都检测了吧
dracularking 2015-10-24
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Caused by: java.lang.IllegalArgumentException: The servlets named [ShowByPageServlet] and [showbypage.ShowByPageServlet] are both mapped to the url-pattern [/ShowByPageServlet] which is not permitted 两个servlet使用了同一个url-pattern
以浪为码 2015-10-24
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引用 1 楼 dracularking 的回复:
Caused by: java.lang.IllegalArgumentException: The servlets named [ShowByPageServlet] and [showbypage.ShowByPageServlet] are both mapped to the url-pattern [/ShowByPageServlet] which is not permitted 两个servlet使用了同一个url-pattern
额。。确实是。这么多，没注意看，太谢谢你了。 我把web.xml删除了就好了。 不过为什么这个web.xml是在A工程里的，但运行B工程里的Servlet也会失败。抛出的异常也是说在A工程里，这会互相影响吗？？
以浪为码 2015-10-24
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额。。确实是。这么多，没注意看，太谢谢你了。 我把web.xml删除了就好了。 不过为什么这个web.xml是在A工程里的，但运行B工程里的Servlet也会失败。抛出的异常也是说在A工程里，这会互相影响吗？？
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