tomcat日志：
23-Nov-2017 00:49:07.772 INFO [main] org.apache.catalina.core.StandardServer.await A valid shutdown command was received via the shutdown port. Stopping the Server instance.
23-Nov-2017 00:49:07.773 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-nio-8080"]
23-Nov-2017 00:49:07.824 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["ajp-nio-8009"]
23-Nov-2017 00:49:07.874 INFO [main] org.apache.catalina.core.StandardService.stopInternal Stopping service Catalina
23-Nov-2017 00:49:08.461 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [MaintainSystem] 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.
23-Nov-2017 00:49:08.462 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [MaintainSystem] appears to have started a thread named [FileWatchdog] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.lang.Thread.sleep(Native Method)
org.apache.log4j.helpers.FileWatchdog.run(FileWatchdog.java:104)
23-Nov-2017 00:49:08.462 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [MaintainSystem] appears to have started a thread named [cluster-ClusterId{value='5a1593f852e92b26c5f5d86c', description='null'}-192.168.7.178:27017] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.net.PlainSocketImpl.socketConnect(Native Method)
java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
java.net.Socket.connect(Socket.java:589)
com.mongodb.connection.SocketStreamHelper.initialize(SocketStreamHelper.java:50)
com.mongodb.connection.SocketStream.open(SocketStream.java:58)
com.mongodb.connection.InternalStreamConnection.open(InternalStreamConnection.java:114)
com.mongodb.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:128)
java.lang.Thread.run(Thread.java:745)
23-Nov-2017 00:49:08.463 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [MaintainSystem] appears to have started a thread named [Thread-5] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.lang.Thread.sleep(Native Method)
com.xd.util.DatabaseCleaner.run(DatabaseCleaner.java:50)
23-Nov-2017 00:49:08.480 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-nio-8080"]
23-Nov-2017 00:49:08.490 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["ajp-nio-8009"]
23-Nov-2017 00:49:08.589 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["http-nio-8080"]
23-Nov-2017 00:49:08.591 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["ajp-nio-8009"]
23-Nov-2017 00:49:21.473 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version: Apache Tomcat/8.0.20
23-Nov-2017 00:49:21.475 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built: Feb 15 2015 18:10:42 UTC
23-Nov-2017 00:49:21.475 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number: 8.0.20.0
23-Nov-2017 00:49:21.475 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name: Linux
23-Nov-2017 00:49:21.475 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version: 2.6.32-573.el6.x86_64
23-Nov-2017 00:49:21.475 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture: amd64
23-Nov-2017 00:49:21.475 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home: /home/dabai/jdk1.8.0_91/jre
23-Nov-2017 00:49:21.475 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version: 1.8.0_91-b14
23-Nov-2017 00:49:21.476 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor: Oracle Corporation
23-Nov-2017 00:49:21.476 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE: /home/dabai/apache-tomcat-8.0.20
23-Nov-2017 00:49:21.476 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME: /home/dabai/apache-tomcat-8.0.20
23-Nov-2017 00:49:21.476 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/home/dabai/apache-tomcat-8.0.20/conf/logging.properties
23-Nov-2017 00:49:21.477 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
23-Nov-2017 00:49:21.477 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.endorsed.dirs=/home/dabai/apache-tomcat-8.0.20/endorsed
23-Nov-2017 00:49:21.477 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/home/dabai/apache-tomcat-8.0.20
23-Nov-2017 00:49:21.477 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/home/dabai/apache-tomcat-8.0.20
23-Nov-2017 00:49:21.478 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/home/dabai/apache-tomcat-8.0.20/temp
23-Nov-2017 00:49:21.478 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
23-Nov-2017 00:49:21.607 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]
23-Nov-2017 00:49:21.621 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
23-Nov-2017 00:49:21.624 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"]
23-Nov-2017 00:49:21.625 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
23-Nov-2017 00:49:21.626 INFO [main] org.apache.catalina.startup.Catalina.load Initialization processed in 632 ms
23-Nov-2017 00:49:21.658 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service Catalina
23-Nov-2017 00:49:21.658 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.0.20
23-Nov-2017 00:49:21.681 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive /home/dabai/apache-tomcat-8.0.20/webapps/MaintainSystem.war
23-Nov-2017 00:50:06.881 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive /home/dabai/apache-tomcat-8.0.20/webapps/MaintainSystem.war has finished in 45,198 ms
23-Nov-2017 00:50:06.882 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /home/dabai/apache-tomcat-8.0.20/webapps/examples
23-Nov-2017 00:50:07.077 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /home/dabai/apache-tomcat-8.0.20/webapps/examples has finished in 195 ms
23-Nov-2017 00:50:07.078 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /home/dabai/apache-tomcat-8.0.20/webapps/manager
23-Nov-2017 00:50:07.103 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /home/dabai/apache-tomcat-8.0.20/webapps/manager has finished in 25 ms
23-Nov-2017 00:50:07.104 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /home/dabai/apache-tomcat-8.0.20/webapps/host-manager
23-Nov-2017 00:50:07.132 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /home/dabai/apache-tomcat-8.0.20/webapps/host-manager has finished in 28 ms
23-Nov-2017 00:50:07.133 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /home/dabai/apache-tomcat-8.0.20/webapps/docs
23-Nov-2017 00:50:07.156 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /home/dabai/apache-tomcat-8.0.20/webapps/docs has finished in 23 ms
23-Nov-2017 00:50:07.157 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /home/dabai/apache-tomcat-8.0.20/webapps/ROOT
23-Nov-2017 00:50:07.177 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /home/dabai/apache-tomcat-8.0.20/webapps/ROOT has finished in 19 ms
23-Nov-2017 00:50:07.185 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
23-Nov-2017 00:50:07.198 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
23-Nov-2017 00:50:07.201 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 45574 ms
web项目运行后，报错提示：
Failed to load resource: the server responded with a status of 500 (Internal Server Error)
saveOpMiInfo.do?urlCode=49D4:75 Uncaught ReferenceError: maxlengthBind is not defined
at saveOpMiInfo.do?urlCode=49D4:75
saveOpMiInfo.do Failed to load resource: the server responded with a status of 500 (Internal Server Error)
