tomcat启动报Server Tomcat v8.0 Server at localhost failed to start.

错误原因:通常是xml配置出错或注解出错

例子:

<servlet-name>AddStuServlet</servlet-name>

<servlet-class>com.hx.web.servlet.AddStuServlet</servlet-class>

</servlet>

<servlet-mapping>

<servlet-name>AddStuServlet</servlet-name>

<url-pattern>/AddStuServlet.do</url-pattern>

</servlet-mapping>

注意点:

<url-pattern>后的地址一定要加上斜杠/ ！！！

eclipse控制台

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[/d20190611homework]]

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[/d20190611homework]]

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

... 6 more

Caused by: java.lang.IllegalArgumentException: Invalid <url-pattern> AddStuServlet.do in servlet mapping

at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3160)

at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3135)

at org.apache.catalina.startup.ContextConfig.configureContext(ContextConfig.java:1372)

at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1176)

at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:771)

at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:305)

at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:95)

at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5154)

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

... 6 more

六月 26, 2019 2:41:57 下午 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:441)

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

六月 26, 2019 2:41:57 下午 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:441)

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

六月 26, 2019 2:41:57 下午 org.apache.coyote.AbstractProtocol pause

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

六月 26, 2019 2:41:57 下午 org.apache.coyote.AbstractProtocol pause

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

六月 26, 2019 2:41:57 下午 org.apache.catalina.core.StandardService stopInternal

信息: Stopping service Catalina

六月 26, 2019 2:41:57 下午 org.apache.coyote.AbstractProtocol destroy

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

六月 26, 2019 2:41:57 下午 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:305)

at org.apache.tomcat.util.net.NioEndpoint.unbind(NioEndpoint.java:481)

at org.apache.tomcat.util.net.AbstractEndpoint.destroy(AbstractEndpoint.java:823)

at org.apache.coyote.AbstractProtocol.destroy(AbstractProtocol.java:533)

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:589)

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)

六月 26, 2019 2:41:57 下午 org.apache.coyote.AbstractProtocol destroy

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

六月 26, 2019 2:41:57 下午 org.apache.coyote.AbstractProtocol destroy

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