Question

我对Tomcat有问题，它停止工作。我三周前安装了Tomcat，并且已经完成了50多个Web动态项目，maven项目，并且一切正常。今天，Tomcat停止工作。例如，我在Eclipse中创建一个项目，当我尝试运行它时，出现此错误：本地主机上的Server Tomcat v9.0 Server无法启动。

我可以从Windows服务启动Tomcat，并且可以在浏览器中打开http://localhost:8080/页面，但不能在eclipse中启动Tomcat。不仅对于一个项目，对于所有项目都无效。问题出在Tomcat上，而不是所有应用程序上。我再次卸载并安装了它，但是不起作用。我该怎么办？任何反馈将不胜感激！

然后我在控制台中收到此消息：

INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
Jun 25, 2018 5:14:32 PM org.apache.catalina.core.ContainerBase startInternal
SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/LoginRegister]]
    at java.base/java.util.concurrent.FutureTask.report(Unknown Source)
    at java.base/java.util.concurrent.FutureTask.get(Unknown Source)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:949)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:839)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1427)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1417)
    at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.base/java.util.concurrent.AbstractExecutorService.submit(Unknown Source)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:258)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:682)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.base/java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/LoginRegister]]
    at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:441)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1427)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1417)
    at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.base/java.util.concurrent.AbstractExecutorService.submit(Unknown Source)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943)
    ... 21 more
Caused by: java.lang.IllegalArgumentException: The servlets named [LoginRegisterServlet] and [login.register.LoginRegisterServlet] are both mapped to the url-pattern [/loginRegister] which is not permitted
    at org.apache.tomcat.util.descriptor.web.WebXml.addServletMappingDecoded(WebXml.java:329)
    at org.apache.tomcat.util.descriptor.web.WebXml.addServletMapping(WebXml.java:322)
    at org.apache.catalina.startup.ContextConfig.processAnnotationWebServlet(ContextConfig.java:2418)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2095)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1981)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1975)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1975)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1146)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:765)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:299)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4989)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    ... 27 more

Jun 25, 2018 5:14:32 PM org.apache.catalina.core.ContainerBase startInternal
SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: A child container failed during start
    at java.base/java.util.concurrent.FutureTask.report(Unknown Source)
    at java.base/java.util.concurrent.FutureTask.get(Unknown Source)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:949)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:258)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:682)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.base/java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:958)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:839)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1427)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1417)
    at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.base/java.util.concurrent.AbstractExecutorService.submit(Unknown Source)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943)
    ... 13 more

Jun 25, 2018 5:14:32 PM org.apache.catalina.startup.Catalina start
SEVERE: The required Server component failed to start so Tomcat is unable to start.
org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:958)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:258)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:682)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.base/java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)

Jun 25, 2018 5:14:32 PM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["http-nio-8080"]
Jun 25, 2018 5:14:32 PM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["ajp-nio-8009"]
Jun 25, 2018 5:14:32 PM org.apache.catalina.core.StandardService stopInternal
INFO: Stopping service [Catalina]
Jun 25, 2018 5:14:32 PM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["http-nio-8080"]
Jun 25, 2018 5:14:32 PM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["ajp-nio-8009"]
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.apache.catalina.loader.WebappClassLoaderBase (file:/C:/Program%20Files/Apache%20Software%20Foundation/Tomcat%209.0/lib/catalina.jar) to field java.io.ObjectStreamClass$Caches.localDescs
WARNING: Please consider reporting this to the maintainers of org.apache.catalina.loader.WebappClassLoaderBase
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Jun 25, 2018 5:14:33 PM org.apache.catalina.deploy.NamingResourcesImpl cleanUp
WARNING: Failed to retrieve JNDI naming context for container [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/LoginRegister]] so no cleanup was performed for that container
javax.naming.NamingException: No naming context bound to this class loader
    at org.apache.naming.ContextBindings.getClassLoader(ContextBindings.java:268)
    at org.apache.catalina.deploy.NamingResourcesImpl.cleanUp(NamingResourcesImpl.java:994)
    at org.apache.catalina.deploy.NamingResourcesImpl.stopInternal(NamingResourcesImpl.java:977)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5327)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:293)
    at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:844)
    at org.apache.catalina.core.ContainerBase.destroyInternal(ContainerBase.java:1046)
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:322)
    at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:844)
    at org.apache.catalina.core.ContainerBase.destroyInternal(ContainerBase.java:1046)
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:322)
    at org.apache.catalina.core.StandardService.destroyInternal(StandardService.java:553)
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:322)
    at org.apache.catalina.core.StandardServer.destroyInternal(StandardServer.java:860)
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:322)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:686)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.base/java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)

Answer 1

来自上面的评论

“严重：子容器在启动期间失败”

“由以下原因引起：java.lang.IllegalArgumentException：名为[LoginRegisterServlet]和[login.register.LoginRegisterServlet]的servlet都映射到了不允许的url模式[/ loginRegister]”

您的“ / loginRegister”代码以前是否可以正常工作？

“我知道只有一个名为LoginRegisterServlet的servlet，我刚刚删除了它，现在我看到Tomcat成功启动了。感谢您的回复！您对我有很大帮助。”

Answer 2

一个小时前我遇到了同样的错误。我转到“服务器”选项卡，删除了tomcat文件，然后重新安装它即可。

希望对您有帮助。

本地主机上的Tomcat v9.0 Server无法在Eclipse中启动

2 个答案: