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无法启动 tomcat（org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading 非法访问：）

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我正在尝试开发一个使用 tomcat 9 和 hibernate 的网络应用程序。我的应用程序运行正常，但突然出现此错误：

18-May-2021 11:35:04.881 SEVERE [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal One or more listeners failed to start. Full details will be found in the appropriate container log file
18-May-2021 11:35:04.882 SEVERE [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal Context [] startup failed due to previous errors
18-May-2021 11:35:04.892 WARNING [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [ROOT] registered the JDBC driver [com.mysql.cj.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak,the JDBC Driver has been forcibly unregistered.[2021-05-18 11:35:04,905] Artifact servlet-hibernate:war exploded: Error during artifact deployment. See server log for details.
18-May-2021 11:35:09.620 INFO [Abandoned connection cleanup thread] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load []. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load []. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
    at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1384)
    at org.apache.catalina.loader.WebappClassLoaderBase.getResource(WebappClassLoaderBase.java:1037)
    at com.mysql.cj.jdbc.AbandonedConnectionCleanupthread.checkContextClassLoaders(AbandonedConnectionCleanupthread.java:96)
    at com.mysql.cj.jdbc.AbandonedConnectionCleanupthread.run(AbandonedConnectionCleanupthread.java:69)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

并且它无法再部署工件。 为了找出这个错误的原因：

   18-May-2021 11:35:04.881 SEVERE [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal One or more listeners failed to start. Full details will be found in the appropriate container log file

当我在 tomcat 中检查日志文件时，我发现了这些错误：

18-May-2021 11:45:13.814 SEVERE [main] org.apache.catalina.util.LifecycleBase.handleSubClassException Failed to initialize component [Connector[HTTP/1.1-8081]]
org.apache.catalina.LifecycleException: Protocol handler initialization failed
    at org.apache.catalina.connector.Connector.initInternal(Connector.java:1049)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
    at org.apache.catalina.core.StandardService.initInternal(StandardService.java:556)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
    at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:1045)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:724)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:746)
    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:483)
    at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:302)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:472)
Caused by: java.net.BindException: Address already in use: bind
    at sun.nio.ch.Net.bind0(Native Method)
    at sun.nio.ch.Net.bind(Net.java:436)
    at sun.nio.ch.Net.bind(Net.java:428)
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
    at org.apache.tomcat.util.net.NioEndpoint.initServerSocket(NioEndpoint.java:300)
    at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:253)
    at org.apache.tomcat.util.net.AbstractEndpoint.bindWithCleanup(AbstractEndpoint.java:1204)
    at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:1217)
    at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:603)
    at org.apache.coyote.http11.AbstractHttp11Protocol.init(AbstractHttp11Protocol.java:80)
    at org.apache.catalina.connector.Connector.initInternal(Connector.java:1046)
    ... 13 more

18-May-2021 11:45:17.472 SEVERE [main] org.apache.catalina.core.StandardServer.await Failed to create server shutdown socket on address [localhost] and port [8005] (base port [8005] and offset [0])
java.net.BindException: Address already in use: JVM_Bind
    at java.net.DualStackPlainSocketImpl.bind0(Native Method)
    at java.net.DualStackPlainSocketImpl.socketBind(DualStackPlainSocketImpl.java:106)
    at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:382)
    at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:190)
    at java.net.ServerSocket.bind(ServerSocket.java:375)
    at java.net.ServerSocket.<init>(ServerSocket.java:237)
    at org.apache.catalina.core.StandardServer.await(StandardServer.java:584)
    at org.apache.catalina.startup.Catalina.await(Catalina.java:864)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:810)
    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:483)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:342)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:473)

顺便说一下，我在 Windows PowerShell 中找不到使用此命令 get-process|select-string "tomcat" 的 tomcat 进程。所以我认为主要问题是启动 tomcat 。
你也应该知道我什么时候运行这个命令：
c:\Tomcat\apache-tomcat-9.0.46-windows-x64\apache-tomcat-9.0.46\bin>startup.bat 在 CMD 中将出现以下窗口。

无法启动 tomcat（org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading 非法访问：）

什么都不会改变，只要我等待。
结论 ： 我想我的 tomcat 还没有启动。而且我想知道我是否最终重新启动了 tomcat 是否有助于解决此错误：

18-May-2021 11:35:09.620 INFO [Abandoned connection cleanup thread]   org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web   application instance has been stopped already. Could not load []. The following stack trace is thrown  for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
 java.lang.IllegalStateException: Illegal access: this web application instance has been stopped  already. Could not load []. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java :1384)
at org.apache.catalina.loader.WebappClassLoaderBase.getResource(WebappClassLoaderBase.java:1037)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupthread.checkContextClassLoaders(AbandonedConnectionCleanupthread.java:96)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupthread.run(AbandonedConnectionCleanupthread.java:69)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

我真的很困惑。我感谢任何解决方案。

netcrazier 回答：无法启动 tomcat（org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading 非法访问：）

尝试重新启动服务器，然后重新启动 IDE 并重建项目也可能有所帮助。另一方面，您可能可以使用 cmd 和以下命令 netstat -ano | findstr "yourPortNumber"

但我真的建议您首先使用 Tomcat 目录中的 server.xml 文件检查配置的端口，然后解决绑定冲突。

hibernateillegalaccessexceptionjavatomcat
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