java - [tomcat错误]非法访问：这个web应用实例已经被停止

Question

我在启动项目时遇到这种异常，有人可以帮我解决这个问题吗？不知道是tomcat部署错误还是代码错误，好像连接成功，然后又失败了。我一次又一次尝试重新部署项目，但还是不行。日志如下：

Connected to the target VM, address: '127.0.0.1:59454', transport: 'socket'
11-Sep-2018 22:42:56.818 警告 [main] org.apache.coyote.http11.Http11Protocol.<init> The HTTP BIO connector has been removed in Tomcat 8.5.x onwards. The HTTP BIO connector configuration has been automatically switched to use the HTTP NIO connector instead.
11-Sep-2018 22:42:56.922 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server version:        Apache Tomcat/8.5.29
11-Sep-2018 22:42:56.923 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             C:\Program Files\Java\jdk1.8.0_181\jre
11-Sep-2018 22:42:56.923 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           1.8.0_181-b13
11-Sep-2018 22:42:56.923 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Oracle Corporation
11-Sep-2018 22:42:56.923 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=C:\Users\admin\.IntelliJIdea2018.2\system\tomcat\Unnamed_ajdk_2\conf\logging.properties
11-Sep-2018 22:42:56.923 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:59454,suspend=y,server=n
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -javaagent:C:\Users\admin\.IntelliJIdea2018.2\system\captureAgent\debugger-agent.jar=file:/C:/Users/admin/AppData/Local/Temp/capture1471.props
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Xms128m
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Xmx1024m
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -XX:MaxPermSize=512m
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote=
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.port=1099
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.ssl=false
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.authenticate=false
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.rmi.server.hostname=127.0.0.1
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dignore.endorsed.dirs=
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=C:\Users\admin\.IntelliJIdea2018.2\system\tomcat\Unnamed_ajdk_2
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=D:\develop\apache-tomcat-8.5.29
11-Sep-2018 22:42:56.924 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=D:\develop\apache-tomcat-8.5.29\temp
11-Sep-2018 22:42:56.925 信息 [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent Loaded APR based Apache Tomcat Native library [1.2.16] using APR version [1.6.3].
11-Sep-2018 22:42:56.925 信息 [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
11-Sep-2018 22:42:56.925 信息 [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true]
11-Sep-2018 22:42:57.966 信息 [main] org.apache.catalina.core.AprLifecycleListener.initializeSSL OpenSSL successfully initialized [OpenSSL 1.0.2m  2 Nov 2017]
11-Sep-2018 22:42:58.058 信息 [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]
11-Sep-2018 22:42:58.068 信息 [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
11-Sep-2018 22:42:58.074 信息 [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["https-openssl-nio-443"]
11-Sep-2018 22:42:58.284 信息 [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
11-Sep-2018 22:42:58.285 信息 [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"]
11-Sep-2018 22:42:58.286 信息 [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
11-Sep-2018 22:42:58.286 信息 [main] org.apache.catalina.startup.Catalina.load Initialization processed in 1701 ms
11-Sep-2018 22:42:58.306 信息 [main] org.apache.catalina.core.StandardService.startInternal Starting service [Catalina]
11-Sep-2018 22:42:58.306 信息 [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.5.29
11-Sep-2018 22:42:58.313 信息 [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
11-Sep-2018 22:42:58.320 信息 [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["https-openssl-nio-443"]
11-Sep-2018 22:42:58.322 信息 [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
11-Sep-2018 22:42:58.330 信息 [main] org.apache.catalina.startup.Catalina.start Server startup in 43 ms
Connected to server
[2018-09-11 10:42:58,701] Artifact ajdk:war exploded: Artifact is being deployed, please wait...
11-Sep-2018 22:43:06.418 信息 [RMI TCP Connection(3)-127.0.0.1] org.apache.jasper.servlet.TldScanner.scanJars 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.
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11-Sep-2018 22:43:50.921 严重 [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
11-Sep-2018 22:43:50.922 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal Context [] startup failed due to previous errors
11-Sep-2018 22:44:09.919 警告 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [ROOT] registered the JDBC driver [com.mysql.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.
[2018-09-11 10:44:09,937] Artifact ajdk:war exploded: Error during artifact deployment. See server log for details.
11-Sep-2018 22:44:14.909 信息 [java-sdk-http-connection-reaper] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [org.apache.http.pool.AbstractConnPool$3]. 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 [org.apache.http.pool.AbstractConnPool$3]. 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:1311)
    at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1299)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1158)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119)
    at org.apache.http.pool.AbstractConnPool.closeIdle(AbstractConnPool.java:541)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.closeIdleConnections(PoolingHttpClientConnectionManager.java:403)
    at com.amazonaws.http.IdleConnectionReaper.run(IdleConnectionReaper.java:188)

11-Sep-2018 22:46:17.836 信息 [pool-2-MeetingPhoneIdService-flushThread--1] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [com.saasbee.webapp.util.UUID]. 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 [com.saasbee.webapp.util.UUID]. 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:1311)
    at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1299)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1158)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119)
    at com.saasbee.webapp.service.meetingphoneid.MeetingPhoneIdService$1.run(MeetingPhoneIdService.java:149)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:308)
    at java.util.concurrent.FutureTask.runAndReset(FutureTask.java)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
    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)

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