Foreword:
I encountered such an error when writing the project today: Caused by: java.lang.IllegalStateException: when starting a child. The first time is very miserable, after all, novices don't know anything. After I persevered and found the real reason, let's take a look at the error message first!
Error message:
Artifact servlet-01:war exploded: Artifact is being deployed, please wait…
严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.tomcat.util.modeler.BaseModelMBean.invoke 调用方法[manageApp]时发生异常
java.lang.IllegalStateException: 启动子级时出错
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1727)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:288)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:456)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:405)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:288)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
at javax.management.remote.rmi.RMIConnectionImpl.access300 ( R M I C o n n e c t i o n I m p l . j a v a : 76 ) a t j a v a x . m a n a g e m e n t . r e m o t e . r m i . R M I C o n n e c t i o n I m p l 300(RMIConnectionImpl.java:76) at javax.management.remote.rmi.RMIConnectionImpl300(RMIConnectionImpl.java:76)atjavax.management.remote.rmi.RMIConnectionImplPrivilegedOperation.run(RMIConnectionImpl.java:1309)
at java.security.AccessController.doPrivileged(Native Method)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408)
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport1. r u n ( T r a n s p o r t . j a v a : 197 ) a t j a v a . s e c u r i t y . A c c e s s C o n t r o l l e r . d o P r i v i l e g e d ( N a t i v e M e t h o d ) a t s u n . r m i . t r a n s p o r t . T r a n s p o r t . s e r v i c e C a l l ( T r a n s p o r t . j a v a : 196 ) a t s u n . r m i . t r a n s p o r t . t c p . T C P T r a n s p o r t . h a n d l e M e s s a g e s ( T C P T r a n s p o r t . j a v a : 573 ) a t s u n . r m i . t r a n s p o r t . t c p . T C P T r a n s p o r t 1.run(Transport.java:197) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:196) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573) at sun.rmi.transport.tcp.TCPTransport1.run(Transport.java:197)atjava.security.AccessController.doPrivileged(NativeMethod)atsun.rmi.transport.Transport.serviceCall(Transport.java:196)atsun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)atsun.rmi.transport.tcp.TCPTransportConnectionHandler.run0(TCPTransport.java:834)
at sun.rmi.transport.tcp.TCPTransportC o n n e c t i o n H a n d l e r . l a m b d a ConnectionHandler.lambdaConnectionHandler.lambdarun0 ( T C P T r a n s p o r t . j a v a : 688 ) a t j a v a . s e c u r i t y . A c c e s s C o n t r o l l e r . d o P r i v i l e g e d ( N a t i v e M e t h o d ) a t s u n . r m i . t r a n s p o r t . t c p . T C P T r a n s p o r t 0(TCPTransport.java:688) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.tcp.TCPTransport0(TCPTransport.java:688)atjava.security.AccessController.doPrivileged(NativeMethod)atsun.rmi.transport.tcp.TCPTransportConnectionHandler.run(TCPTransport.java:687)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.catalina.LifecycleException: 无法启动组件[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/servlet_01_war_exploded]]
at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
… 43 more
Caused by: java.lang.IllegalArgumentException: servlet映射中的[hello1]无效
at org.apache.catalina.core.StandardContext.addServletMappingDecoded(StandardContext.java:3176)
at org.apache.catalina.Context.addServletMappingDecoded(Context.java:881)
at org.apache.catalina.startup.ContextConfig.configureContext(ContextConfig.java:1603)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1383)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:983)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:302)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5044)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
… 44 more
15-Aug-2020 15:08:30.826 Critical [RMI TCP Connection(3)-127.0.0.1] org.apache.tomcat.util.modeler.BaseModelMBean.invoke An exception occurred when calling the method [createStandardContext]
javax.management.RuntimeOperationsException: An exception occurred when calling the method [manageApp]
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:297)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com .sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:456)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory .java:405)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:288)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
at javax.management.remote.rmi.RMIConnectionImpl.access300 ( R M I C o n n e c t i o n I m p l . j a v a : 76 ) a t j a v a x . m a n a g e m e n t . r e m o t e . r m i . R M I C o n n e c t i o n I m p l 300(RMIConnectionImpl.java:76) at javax.management.remote.rmi.RMIConnectionImpl300(RMIConnectionImpl.java:76)atjavax.management.remote.rmi.RMIConnectionImplPrivilegedOperation.run(RMIConnectionImpl.java:1309)
at java.security.AccessController.doPrivileged(Native Method)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408)
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport1. r u n ( T r a n s p o r t . j a v a : 197 ) a t j a v a . s e c u r i t y . A c c e s s C o n t r o l l e r . d o P r i v i l e g e d ( N a t i v e M e t h o d ) a t s u n . r m i . t r a n s p o r t . T r a n s p o r t . s e r v i c e C a l l ( T r a n s p o r t . j a v a : 196 ) a t s u n . r m i . t r a n s p o r t . t c p . T C P T r a n s p o r t . h a n d l e M e s s a g e s ( T C P T r a n s p o r t . j a v a : 573 ) a t s u n . r m i . t r a n s p o r t . t c p . T C P T r a n s p o r t 1.run(Transport.java:197) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:196) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573) at sun.rmi.transport.tcp.TCPTransport1.run(Transport.java:197)atjava.security.AccessController.doPrivileged(NativeMethod)atsun.rmi.transport.Transport.serviceCall(Transport.java:196)atsun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)atsun.rmi.transport.tcp.TCPTransportConnectionHandler.run0(TCPTransport.java:834)
at sun.rmi.transport.tcp.TCPTransportC o n n e c t i o n H a n d l e r . l a m b d a ConnectionHandler.lambdaConnectionHandler.lambdarun0 ( T C P T r a n s p o r t . j a v a : 688 ) a t j a v a . s e c u r i t y . A c c e s s C o n t r o l l e r . d o P r i v i l e g e d ( N a t i v e M e t h o d ) a t s u n . r m i . t r a n s p o r t . t c p . T C P T r a n s p o r t 0(TCPTransport.java:688) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.tcp.TCPTransport0(TCPTransport.java:688)atjava.security.AccessController.doPrivileged(NativeMethod)atsun.rmi.transport.tcp.TCPTransportConnectionHandler.run(TCPTransport.java:687)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.IllegalStateException: 启动子级时出错
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1727)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:288)
… 35 more
Caused by: org.apache.catalina.LifecycleException: 无法启动组件[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/servlet_01_war_exploded]]
at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
… 43 more
Caused by: java.lang.IllegalArgumentException: servlet映射中的[hello1]无效
at org.apache.catalina.core.StandardContext.addServletMappingDecoded(StandardContext.java:3176)
at org.apache.catalina.Context.addServletMappingDecoded(Context.java:881)
at org.apache.catalina.startup.ContextConfig.configureContext(ContextConfig.java:1603)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1383)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:983)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:302)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5044)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
… 44 more
[2020-08-15 03:08:30,834] Artifact servlet-01:war exploded: Error during artifact deployment. See server log for details.
15-Aug-2020 15:08:40.523 Information [Catalina-utility-2] org .apache.catalina.startup.HostConfig.deployDirectory Deploy the web application to the directory [Z:\java\apache-tomcat-9.0.37\webapps\manager]
15-Aug-2020 15:08:40.593 Information [Catalina-utility -2] The deployment of org.apache.catalina.startup.HostConfig.deployDirectory Web application directory [Z:\java\apache-tomcat-9.0.37\webapps\manager] was completed in [70] milliseconds
After publishing the servlet resource on the tomcat server, there was clearly no error, but it did not pass. After careful inspection for n times, it turned out that the url-partten did not add / Artifact servlet-01: war exploded: Artifact is being deployed, please wait...
serious [RMI TCP Connection(3)-127.0.0.1] org.apache.tomcat.util.modeler.BaseModelMBean.invoke An exception occurred when calling the method [manageApp]
java.lang.IllegalStateException: An error occurred while starting the child
at org .apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
at org.apache.catalina.core.StandardHost.addChild(StandardHost .java:705)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1727)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:288)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:456)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:405)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:288)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
at javax.management.remote.rmi.RMIConnectionImpl.access300 ( R M I C o n n e c t i o n I m p l . j a v a : 76 ) a t j a v a x . m a n a g e m e n t . r e m o t e . r m i . R M I C o n n e c t i o n I m p l 300(RMIConnectionImpl.java:76) at javax.management.remote.rmi.RMIConnectionImpl300(RMIConnectionImpl.java:76)atjavax.management.remote.rmi.RMIConnectionImplPrivilegedOperation.run(RMIConnectionImpl.java:1309)
at java.security.AccessController.doPrivileged(Native Method)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408)
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport1. r u n ( T r a n s p o r t . j a v a : 197 ) a t j a v a . s e c u r i t y . A c c e s s C o n t r o l l e r . d o P r i v i l e g e d ( N a t i v e M e t h o d ) a t s u n . r m i . t r a n s p o r t . T r a n s p o r t . s e r v i c e C a l l ( T r a n s p o r t . j a v a : 196 ) a t s u n . r m i . t r a n s p o r t . t c p . T C P T r a n s p o r t . h a n d l e M e s s a g e s ( T C P T r a n s p o r t . j a v a : 573 ) a t s u n . r m i . t r a n s p o r t . t c p . T C P T r a n s p o r t 1.run(Transport.java:197) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:196) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573) at sun.rmi.transport.tcp.TCPTransport1.run(Transport.java:197)atjava.security.AccessController.doPrivileged(NativeMethod)atsun.rmi.transport.Transport.serviceCall(Transport.java:196)atsun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)atsun.rmi.transport.tcp.TCPTransportConnectionHandler.run0(TCPTransport.java:834)
at sun.rmi.transport.tcp.TCPTransportC o n n e c t i o n H a n d l e r . l a m b d a ConnectionHandler.lambdaConnectionHandler.lambdarun0 ( T C P T r a n s p o r t . j a v a : 688 ) a t j a v a . s e c u r i t y . A c c e s s C o n t r o l l e r . d o P r i v i l e g e d ( N a t i v e M e t h o d ) a t s u n . r m i . t r a n s p o r t . t c p . T C P T r a n s p o r t 0(TCPTransport.java:688) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.tcp.TCPTransport0(TCPTransport.java:688)atjava.security.AccessController.doPrivileged(NativeMethod)atsun.rmi.transport.tcp.TCPTransportConnectionHandler.run(TCPTransport.java:687)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.catalina.LifecycleException: 无法启动组件[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/servlet_01_war_exploded]]
at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
… 43 more
Caused by: java.lang.IllegalArgumentException: servlet映射中的[hello1]无效
at org.apache.catalina.core.StandardContext.addServletMappingDecoded(StandardContext.java:3176)
at org.apache.catalina.Context.addServletMappingDecoded(Context.java:881)
at org.apache.catalina.startup.ContextConfig.configureContext(ContextConfig.java:1603)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1383)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:983)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:302)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5044)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
… 44 more
15-Aug-2020 15:08:30.826 Critical [RMI TCP Connection(3)-127.0.0.1] org.apache.tomcat.util.modeler.BaseModelMBean.invoke An exception occurred when calling the method [createStandardContext]
javax.management.RuntimeOperationsException: An exception occurred when calling the method [manageApp]
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:297)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com .sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:456)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory .java:405)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:288)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
at javax.management.remote.rmi.RMIConnectionImpl.access300 ( R M I C o n n e c t i o n I m p l . j a v a : 76 ) a t j a v a x . m a n a g e m e n t . r e m o t e . r m i . R M I C o n n e c t i o n I m p l 300(RMIConnectionImpl.java:76) at javax.management.remote.rmi.RMIConnectionImpl300(RMIConnectionImpl.java:76)atjavax.management.remote.rmi.RMIConnectionImplPrivilegedOperation.run(RMIConnectionImpl.java:1309)
at java.security.AccessController.doPrivileged(Native Method)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408)
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport1. r u n ( T r a n s p o r t . j a v a : 197 ) a t j a v a . s e c u r i t y . A c c e s s C o n t r o l l e r . d o P r i v i l e g e d ( N a t i v e M e t h o d ) a t s u n . r m i . t r a n s p o r t . T r a n s p o r t . s e r v i c e C a l l ( T r a n s p o r t . j a v a : 196 ) a t s u n . r m i . t r a n s p o r t . t c p . T C P T r a n s p o r t . h a n d l e M e s s a g e s ( T C P T r a n s p o r t . j a v a : 573 ) a t s u n . r m i . t r a n s p o r t . t c p . T C P T r a n s p o r t 1.run(Transport.java:197) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:196) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573) at sun.rmi.transport.tcp.TCPTransport1.run(Transport.java:197)atjava.security.AccessController.doPrivileged(NativeMethod)atsun.rmi.transport.Transport.serviceCall(Transport.java:196)atsun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)atsun.rmi.transport.tcp.TCPTransportConnectionHandler.run0(TCPTransport.java:834)
at sun.rmi.transport.tcp.TCPTransportC o n n e c t i o n H a n d l e r . l a m b d a ConnectionHandler.lambdaConnectionHandler.lambdarun0 ( T C P T r a n s p o r t . j a v a : 688 ) a t j a v a . s e c u r i t y . A c c e s s C o n t r o l l e r . d o P r i v i l e g e d ( N a t i v e M e t h o d ) a t s u n . r m i . t r a n s p o r t . t c p . T C P T r a n s p o r t 0(TCPTransport.java:688) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.tcp.TCPTransport0(TCPTransport.java:688)atjava.security.AccessController.doPrivileged(NativeMethod)atsun.rmi.transport.tcp.TCPTransportConnectionHandler.run(TCPTransport.java:687)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.IllegalStateException: 启动子级时出错
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1727)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:288)
… 35 more
Caused by: org.apache.catalina.LifecycleException: 无法启动组件[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/servlet_01_war_exploded]]
at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
… 43 more
Caused by: java.lang.IllegalArgumentException: servlet映射中的[hello1]无效
at org.apache.catalina.core.StandardContext.addServletMappingDecoded(StandardContext.java:3176)
at org.apache.catalina.Context.addServletMappingDecoded(Context.java:881)
at org.apache.catalina.startup.ContextConfig.configureContext(ContextConfig.java:1603)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1383)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:983)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:302)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5044)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
… 44 more
[2020-08-15 03:08:30,834] Artifact servlet-01:war exploded: Error during artifact deployment. See server log for details.
15-Aug-2020 15:08:40.523 Information [Catalina-utility-2] org .apache.catalina.startup.HostConfig.deployDirectory Deploy the web application to the directory [Z:\java\apache-tomcat-9.0.37\webapps\manager]
15-Aug-2020 15:08:40.593 Information [Catalina-utility -2] The deployment of org.apache.catalina.startup.HostConfig.deployDirectory Web application directory [Z:\java\apache-tomcat-9.0.37\webapps\manager] was completed in [70] milliseconds
After publishing the servlet resource on the tomcat server, there is clearly no error, but it has never passed. After careful inspection for n times, it turns out that the annotations are repeated
before fixing:
After modification:
End:
In this mistake, I understand that I must be careful and meticulous when writing a program. At the same time, I will cut a picture of the same problem that I found on the Internet, and I hope it will help you.