/hello/test时

Question

老师您好，在写到 /test/hello那地方时候 ，tomcat无法启动，出现 Artifact permission:war exploded: Error during artifact deployment. See server log for details.

01-Jun-2019 00:11:05.718 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
01-Jun-2019 00:11:05.718 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal Context [] startup failed due to previous errors
01-Jun-2019 00:11:05.730 警告 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc Web应用程序 [ROOT] 注册了JDBC驱动程序 [com.alibaba.druid.proxy.DruidDriver]，但在Web应用程序停止时无法注销它。 为防止内存泄漏，JDBC驱动程序已被强制取消注册。
01-Jun-2019 00:11:05.730 警告 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc Web应用程序 [ROOT] 注册了JDBC驱动程序 [com.mysql.cj.jdbc.Driver]，但在Web应用程序停止时无法注销它。 为防止内存泄漏，JDBC驱动程序已被强制取消注册。
01-Jun-2019 00:11:08.053 信息 [mysql-cj-abandoned-connection-cleanup] 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:1383)
at org.apache.catalina.loader.WebappClassLoaderBase.getResource(WebappClassLoaderBase.java:1036)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.checkThreadContextClassLoader(AbandonedConnectionCleanupThread.java:117)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:84)
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)
01-Jun-2019 00:11:18.752 严重 [main] org.apache.catalina.startup.Catalina.stopServer Could not contact [localhost:8005] (base port [8005] and offset [0]). Tomcat may not be running.
01-Jun-2019 00:11:18.758 严重 [main] org.apache.catalina.startup.Catalina.stopServer Error stopping Catalina
java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at java.net.Socket.(Socket.java:434)
at java.net.Socket.(Socket.java:211)
at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:513)
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.catalina.startup.Bootstrap.stopServer(Bootstrap.java:390)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:480)

01-Jun-2019 00:11:40.388 信息 [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [C:\Tomcat 9.0\webapps\manager]
01-Jun-2019 00:11:40.572 信息 [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Tomcat 9.0\webapps\manager] has finished in [179] ms
01-Jun-2019 00:11:57.604 严重 [main] org.apache.catalina.startup.Catalina.stopServer Could not contact [localhost:8005] (base port [8005] and offset [0]). Tomcat may not be running.
01-Jun-2019 00:28:44.815 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.服务器版本: Apache Tomcat/9.0.20
01-Jun-2019 00:28:44.821 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.构建: May 3 2019 22:26:00 UTC
01-Jun-2019 00:28:44.821 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server version number: 9.0.20.0
01-Jun-2019 00:28:44.821 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name: Windows 10
01-Jun-2019 00:28:55.262 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [C:\Tomcat 9.0\webapps\manager]
01-Jun-2019 00:28:55.439 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Tomcat 9.0\webapps\manager] has finished in [177] ms
01-Jun-2019 00:30:19.772 严重 [main] org.apache.catalina.startup.Catalina.stopServer Could not contact [localhost:8005] (base port [8005] and offset [0]). Tomcat may not be running.
01-Jun-2019 00:30:35.138 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.服务器版本: Apache Tomcat/9.0.20
01-Jun-2019 00:30:35.141 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.构建: May 3 2019 22:26:00 UTC
01-Jun-2019 00:30:45.451 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [C:\Tomcat 9.0\webapps\manager]
01-Jun-2019 00:30:45.500 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Tomcat 9.0\webapps\manager] has finished in [49] ms
01-Jun-2019 00:32:04.018 警告 [main] org.apache.catalina.core.StandardServer.await Invalid shutdown command [] received
01-Jun-2019 00:32:12.639 严重 [main] org.apache.catalina.startup.Catalina.stopServer Could not contact [localhost:8005] (base port [8005] and offset [0]). Tomcat may not be running.
01-Jun-2019 00:32:34.481 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.服务器版本: Apache Tomcat/9.0.20
01-Jun-2019 00:32:34.481 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.构建: May 3 2019 22:26:00 UTC
01-Jun-2019 00:32:34.484 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server version number: 9.0.20.0
01-Jun-2019 00:32:44.841 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [C:\Tomcat 9.0\webapps\manager]
01-Jun-2019 00:32:44.965 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Tomcat 9.0\webapps\manager] has finished in [123] ms
01-Jun-2019 01:10:43.781 严重 [main] org.apache.catalina.startup.Catalina.stopServer Could not contact [localhost:8005] (base port [8005] and offset [0]). Tomcat may not be running.
01-Jun-2019 01:11:47.808 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.服务器版本: Apache Tomcat/9.0.20
01-Jun-2019 01:11:47.813 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.构建: May 3 2019 22:26:00 UTC
01-Jun-2019 01:11:58.403 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Tomcat 9.0\webapps\manager] has finished in [110] ms
01-Jun-2019 01:17:33.581 警告 [main] org.apache.catalina.core.StandardServer.await Invalid shutdown command [] received
01-Jun-2019 01:17:55.654 信息 [main] org.apache.catalina.core.StandardServer.await A valid shutdown command was received via the shutdown port. Stopping the Server instance.
01-Jun-2019 01:17:55.655 信息 [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler [“http-nio-8080”]
01-Jun-2019 11:23:07.050 信息 [main] org.apache.catalina.startup.Catalina.start Server startup in [44] milliseconds
01-Jun-2019 11:23:10.733 信息 [RMI TCP Connection(3)-127.0.0.1] org.apache.jasper.servlet.TldScanner.scanJars 至少有一个JAR被扫描用于TLD但尚未包含TLD。 为此记录器启用调试日志记录，以获取已扫描但未在其中找到TLD的完整JAR列表。 在扫描期间跳过不需要的JAR可以缩短启动时间和JSP编译时间。
01-Jun-2019 11:23:17.049 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [C:\Tomcat 9.0\webapps\manager]
01-Jun-2019 11:23:17.096 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Tomcat 9.0\webapps\manager] has finished in [47] ms
01-Jun-2019 11:25:15.331 严重 [main] org.apache.catalina.startup.Catalina.stopServer Could not contact [localhost:8005] (base port [8005] and offset [0]). Tomcat may not be running.
01-Jun-2019 11:25:26.447 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.服务器版本: Apache Tomcat/9.0.20
01-Jun-2019 11:25:26.448 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.构建: May 3 2019 22:26:00 UTC
01-Jun-2019 11:25:30.194 信息 [RMI TCP Connection(5)-127.0.0.1] org.apache.jasper.servlet.TldScanner.scanJars 至少有一个JAR被扫描用于TLD但尚未包含TLD。 为此记录器启用调试日志记录，以获取已扫描但未在其中找到TLD的完整JAR列表。 在扫描期间跳过不需要的JAR可以缩短启动时间和JSP编译时间。
01-Jun-2019 11:25:33.361 严重 [RMI TCP Connection(5)-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
01-Jun-2019 11:25:33.362 严重 [RMI TCP Connection(5)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal Context [] startup failed due to previous errors
01-Jun-2019 11:25:33.379 警告 [RMI TCP Connection(5)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc Web应用程序 [ROOT] 注册了JDBC驱动程序 [com.alibaba.druid.proxy.DruidDriver]，但在Web应用程序停止时无法注销它。 为防止内存泄漏，JDBC驱动程序已被强制取消注册。
01-Jun-2019 11:25:33.379 警告 [RMI TCP Connection(5)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc Web应用程序 [ROOT] 注册了JDBC驱动程序 [com.mysql.cj.jdbc.Driver]，但在Web应用程序停止时无法注销它。 为防止内存泄漏，JDBC驱动程序已被强制取消注册。
01-Jun-2019 11:25:36.116 信息 [mysql-cj-abandoned-connection-cleanup] 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:1383)
at org.apache.catalina.loader.WebappClassLoaderBase.getResource(WebappClassLoaderBase.java:1036)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.checkThreadContextClassLoader(AbandonedConnectionCleanupThread.java:117)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:84)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutorKaTeX parse error: Expected 'EOF', got '信' at position 109: …9 11:25:36.663 信̲息 [Catalina-uti…Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
01-Jun-2019 11:32:56.952 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [C:\Program Files (x86)\Apache Software Foundation\Tomcat 9.0\webapps\manager]
01-Jun-2019 11:32:57.016 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Program Files (x86)\Apache Software Foundation\Tomcat 9.0\webapps\manager] has finished in [64] ms
01-Jun-2019 11:33:56.629 严重 [main] org.apache.catalina.startup.Catalina.stopServer Could not contact [localhost:8005] (base port [8005] and offset [0]). Tomcat may not be running.
01-Jun-2019 11:34:41.821 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.服务器版本: Apache Tomcat/9.0.20
01-Jun-2019 11:34:45.622 信息 [RMI TCP Connection(3)-127.0.0.1] org.apache.jasper.servlet.TldScanner.scanJars 至少有一个JAR被扫描用于TLD但尚未包含TLD。 为此记录器启用调试日志记录，以获取已扫描但未在其中找到TLD的完整JAR列表。 在扫描期间跳过不需要的JAR可以缩短启动时间和JSP编译时间。
01-Jun-2019 11:34:48.778 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
01-Jun-2019 11:34:48.779 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal Context [/RMS_war_exploded] startup failed due to previous errors
01-Jun-2019 11:34:48.791 警告 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc Web应用程序 [RMS_war_exploded] 注册了JDBC驱动程序 [com.alibaba.druid.proxy.DruidDriver]，但在Web应用程序停止时无法注销它。 为防止内存泄漏，JDBC驱动程序已被强制取消注册。
01-Jun-2019 11:34:48.791 警告 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc Web应用程序 [RMS_war_exploded] 注册了JDBC驱动程序 [com.mysql.cj.jdbc.Driver]，但在Web应用程序停止时无法注销它。 为防止内存泄漏，JDBC驱动程序已被强制取消注册。
01-Jun-2019 11:34:51.542 信息 [mysql-cj-abandoned-connection-cleanup] 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:1383)
at org.apache.catalina.loader.WebappClassLoaderBase.getResource(WebappClassLoaderBase.java:1036)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.checkThreadContextClassLoader(AbandonedConnectionCleanupThread.java:117)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:84)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutorKaTeX parse error: Expected 'EOF', got '信' at position 109: …9 11:34:52.057 信̲息 [Catalina-uti…Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
01-Jun-2019 11:44:38.215 严重 [main] org.apache.catalina.startup.Catalina.stopServer Could not contact [localhost:8005] (base port [8005] and offset [0]). Tomcat may not be running.
01-Jun-2019 12:19:18.433 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.服务器版本: Apache Tomcat/9.0.20
01-Jun-2019 12:19:18.434 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.构建: May 3 2019 22:26:00 UTC
01-Jun-2019 12:19:18.665 信息 [main] org.apache.catalina.startup.Catalina.start Server startup in [50] milliseconds
01-Jun-2019 12:19:22.182 信息 [RMI TCP Connection(3)-127.0.0.1] org.apache.jasper.servlet.TldScanner.scanJars 至少有一个JAR被扫描用于TLD但尚未包含TLD。 为此记录器启用调试日志记录，以获取已扫描但未在其中找到TLD的完整JAR列表。 在扫描期间跳过不需要的JAR可以缩短启动时间和JSP编译时间。
01-Jun-2019 12:19:25.350 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
01-Jun-2019 12:19:25.351 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal Context [/RMS_war_exploded] startup failed due to previous errors
01-Jun-2019 12:19:25.362 警告 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc Web应用程序 [RMS_war_exploded] 注册了JDBC驱动程序 [com.alibaba.druid.proxy.DruidDriver]，但在Web应用程序停止时无法注销它。 为防止内存泄漏，JDBC驱动程序已被强制取消注册。
01-Jun-2019 12:19:25.362 警告 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc Web应用程序 [RMS_war_exploded] 注册了JDBC驱动程序 [com.mysql.cj.jdbc.Driver]，但在Web应用程序停止时无法注销它。 为防止内存泄漏，JDBC驱动程序已被强制取消注册。
01-Jun-2019 12:19:28.095 信息 [mysql-cj-abandoned-connection-cleanup] 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:1383)
at org.apache.catalina.loader.WebappClassLoaderBase.getResource(WebappClassLoaderBase.java:1036)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.checkThreadContextClassLoader(AbandonedConnectionCleanupThread.java:117)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:84)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutorKaTeX parse error: Expected 'EOF', got '信' at position 109: …9 12:19:28.658 信̲息 [Catalina-uti…Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
01-Jun-2019 12:21:19.283 信息 [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployDirectory 把web 应用程序部署到目录 [C:\Tomcat 9.0\webapps\manager]
01-Jun-2019 12:21:19.371 信息 [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Tomcat 9.0\webapps\manager] has finished in [87] ms

Answer 1

Jimin 2019-06-01 18:47:03

com.mysql.cj.jdbc.Driver ，你这个配置错了，你从哪里看到的这个

Answer 2

Jimin 2019-06-01 12:42:47

你好，01-Jun-2019 00:11:05.718 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
01-Jun-2019 00:11:05.718 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal Context [] startup failed due to previous errors
这部分以前的错误日志呢，这里提示是因为之前的错误导致启动失败，而之前的内容刚好都没有。
另外，tomcat9你晓得和其他的部署区别，这个版本太高了。
还有一点，为啥你的错误日志里这么多中文

• 提问者 qq_慕沐4034251 #1

  老师我用tamcat7弄了一下也是启动失败
  六月 01, 2019 1:45:43 下午 org.apache.catalina.startup.TldConfig execute
  信息: 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.
  六月 01, 2019 1:45:43 下午 org.apache.catalina.core.ApplicationContext log
  信息: No Spring WebApplicationInitializer types detected on classpath
  六月 01, 2019 1:45:43 下午 org.apache.catalina.core.ApplicationContext log
  信息: Initializing Spring root WebApplicationContext
  SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
  SLF4J: Defaulting to no-operation (NOP) logger implementation
  SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
  Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.

• 提问者 qq_慕沐4034251 #2

  六月 01, 2019 1:45:45 下午 org.apache.catalina.core.StandardContext listenerStart
  严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
  org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

• 提问者 qq_慕沐4034251 #3

  六月 01, 2019 1:45:45 下午 org.apache.catalina.core.StandardContext startInternal
  严重: One or more listeners failed to start. Full details will be found in the appropriate container log file
  六月 01, 2019 1:45:45 下午 org.apache.catalina.core.StandardContext startInternal
  严重: Context [/RMS_war_exploded] startup failed due to previous errors
  六月 01, 2019 1:45:45 下午 org.apache.catalina.core.ApplicationContext log
  信息: Closing Spring root WebApplicationContext
  六月 01, 2019 1:45:45 下午 org.apache.catalina.loader.WebappClassLoaderBase clearReferencesJdbc
  严重: The web application [/RMS_war_exploded] registered the JDBC driver [com.alibaba.druid.proxy.DruidDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
  六月 01, 2019 1:45:45 下午 org.apache.catalina.loader.WebappClassLoaderBase clearReferencesJdbc
  严重: The web application [/RMS_war_exploded] 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.

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