java - Tomcat v8.0 服务器启动失败

Question

我正在尝试为我的最终 uni 项目制作一个在 Eclipse-ee 中的 apache tomcat v8.0 服务器上运行的动态 Web 应用程序，但在启动服务器时遇到了问题。它一直运行良好，然后似乎无缘无故地停止了。我是整个网络应用程序的新手，所以如果我做了任何愚蠢的事情，请提前道歉!

这是我在尝试启动服务器时收到的错误消息:

这是服务器概览选项卡:

这是我尝试启动服务器时的控制台输出。有一些错误，但我不明白它们的意思:

Jan 14, 2019 3:27:02 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:VulnerableWebApp' did not find a matching property.
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server version:        Apache Tomcat/8.0.36
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server built:          Jun 9 2016 13:55:50 UTC
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server number:         8.0.36.0
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Name:               Windows 7
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Version:            6.1
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Architecture:          amd64
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Java Home:             C:\Program Files\Java\jre1.8.0_171
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Version:           1.8.0_171-b11
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Vendor:            Oracle Corporation
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_BASE:         F:\Stuart\eclipse-ee-workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_HOME:         F:\Stuart\eclipse-ee-workspace\tomcat
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.base=F:\Stuart\eclipse-ee-workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.home=F:\Stuart\eclipse-ee-workspace\tomcat
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dwtp.deploy=F:\Stuart\eclipse-ee-workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.endorsed.dirs=F:\Stuart\eclipse-ee-workspace\tomcat\endorsed
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dfile.encoding=Cp1252
Jan 14, 2019 3:27:02 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre1.8.0_171\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jre1.8.0_171/bin/server;C:/Program Files/Java/jre1.8.0_171/bin;C:/Program Files/Java/jre1.8.0_171/lib/amd64;c:\program files (x86)\common files\oracle\java\javapath;c:\programdata\oracle\java\javapath;c:\program files (x86)\intel\icls client\;c:\program files\intel\icls client\;c:\program files\common files\microsoft shared\windows live;c:\program files (x86)\common files\microsoft shared\windows live;c:\windows\system32;c:\windows;c:\windows\system32\wbem;c:\windows\system32\windowspowershell\v1.0\;c:\program files (x86)\ati technologies\ati.ace\core-static;c:\program files (x86)\windows live\shared;c:\program files (x86)\amd\ati.ace\core-static;c:\program files\intel\intel(r) management engine components\dal;c:\program files\intel\intel(r) management engine components\ipt;c:\program files (x86)\intel\intel(r) management engine components\dal;c:\program files (x86)\intel\intel(r) management engine components\ipt;c:\users\stuart\.dnx\bin;c:\program files\microsoft dnx\dnvm\;c:\program files\microsoft sql server\130\tools\binn\;f:\program files\git\cmd;f:\program files\matlab2018\bin;c:\program files\nvidia corporation\nvidia nvdlisr;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Users\Stuart\AppData\Roaming\Dashlane\6.1901.0.16461\bin\Firefox_Extension\{442718d9-475e-452a-b3e1-fb1ee16b8e9f}\components;C:\Users\Stuart\AppData\Roaming\Dashlane\6.1901.0.16461\ucrt;C:\Users\Stuart\AppData\Roaming\Dashlane\6.1901.0.16461\bin\Qt;C:\Users\Stuart\AppData\Roaming\Dashlane\6.1901.0.16461\bin\Ssl;F:\New folder (4);;.
Jan 14, 2019 3:27:02 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-nio-8080"]
Jan 14, 2019 3:27:02 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFO: Using a shared selector for servlet write/read
Jan 14, 2019 3:27:02 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-nio-8009"]
Jan 14, 2019 3:27:02 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFO: Using a shared selector for servlet write/read
Jan 14, 2019 3:27:02 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 706 ms
Jan 14, 2019 3:27:03 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Jan 14, 2019 3:27:03 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/8.0.36
Jan 14, 2019 3:27:03 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[/VulnerableWebApp]]
    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:915)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:871)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1407)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1397)
    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[/VulnerableWebApp]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153)
    ... 6 more
Caused by: java.lang.IllegalArgumentException: The servlets named [LoginCheck] and [Registration] are both mapped to the url-pattern [/LoginCheck] 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:2373)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2055)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1940)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1147)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:779)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:306)
    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:5202)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    ... 6 more

Jan 14, 2019 3:27:03 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]]
    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:915)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:441)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:787)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    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)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1407)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1397)
    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:923)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:871)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    ... 6 more

Jan 14, 2019 3:27:03 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: Failed to start component [StandardServer[8005]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153)
    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)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:787)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    ... 7 more
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:441)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    ... 9 more
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:923)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    ... 11 more

Jan 14, 2019 3:27:03 PM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["http-nio-8080"]
Jan 14, 2019 3:27:03 PM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["ajp-nio-8009"]
Jan 14, 2019 3:27:03 PM org.apache.catalina.core.StandardService stopInternal
INFO: Stopping service Catalina
Jan 14, 2019 3:27:03 PM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["http-nio-8080"]
Jan 14, 2019 3:27:03 PM org.apache.coyote.AbstractProtocol destroy
SEVERE: Failed to destroy end point associated with ProtocolHandler ["http-nio-8080"]
java.lang.NullPointerException
    at org.apache.tomcat.util.net.NioEndpoint.releaseCaches(NioEndpoint.java:316)
    at org.apache.tomcat.util.net.NioEndpoint.unbind(NioEndpoint.java:492)
    at org.apache.tomcat.util.net.AbstractEndpoint.destroy(AbstractEndpoint.java:821)
    at org.apache.coyote.AbstractProtocol.destroy(AbstractProtocol.java:534)
    at org.apache.catalina.connector.Connector.destroyInternal(Connector.java:1023)
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:297)
    at org.apache.catalina.core.StandardService.destroyInternal(StandardService.java:589)
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:297)
    at org.apache.catalina.core.StandardServer.destroyInternal(StandardServer.java:877)
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:297)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:633)
    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)

Jan 14, 2019 3:27:03 PM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["ajp-nio-8009"]
Jan 14, 2019 3:27:03 PM org.apache.coyote.AbstractProtocol destroy
SEVERE: Failed to destroy end point associated with ProtocolHandler ["ajp-nio-8009"]
java.lang.NullPointerException
    at org.apache.tomcat.util.net.NioEndpoint.releaseCaches(NioEndpoint.java:316)
    at org.apache.tomcat.util.net.NioEndpoint.unbind(NioEndpoint.java:492)
    at org.apache.tomcat.util.net.AbstractEndpoint.destroy(AbstractEndpoint.java:821)
    at org.apache.coyote.AbstractProtocol.destroy(AbstractProtocol.java:534)
    at org.apache.catalina.connector.Connector.destroyInternal(Connector.java:1023)
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:297)
    at org.apache.catalina.core.StandardService.destroyInternal(StandardService.java:589)
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:297)
    at org.apache.catalina.core.StandardServer.destroyInternal(StandardServer.java:877)
    at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:297)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:633)
    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)

最后是 web.xml 文件。我没有动过它，所以我希望这很好:

Answer 1

我认为这是问题所在

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

将 servlet 更改为具有 2 个单独的路径。