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先发ERROR 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.Util.getInstance(Util.java:386) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2575) 
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311) 
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834) 
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
        at sun.reflect.GeneratedConstructorAccessor61.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) 
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:149) 
        at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:143) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1515) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578) 
        at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466) 
Caused by: java.lang.NullPointerException 
        at com.mysql.jdbc.ConnectionImpl.getServerCharacterEncoding(ConnectionImpl.java:3286) 
        at com.mysql.jdbc.MysqlIO.sendConnectionAttributes(MysqlIO.java:1987) 
        at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1913) 
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1290) 
        at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2493) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2526) 
        ... 15 more 
[2019-01-01 23:40:03] [ERROR] [com.alibaba.druid.pool.DruidDataSource:2469] create connection SQLException, url: jdbc:mysql://localhost:3306/jeecg?useUnicode=true&characterEncoding=UTF-8, errorCode 0, state 08001 
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. 
        at sun.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.Util.getInstance(Util.java:386) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2575) 
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311) 
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834) 
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
        at sun.reflect.GeneratedConstructorAccessor61.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) 
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:149) 
        at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:143) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1515) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578) 
        at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466) 
Caused by: java.lang.NullPointerException 
        at com.mysql.jdbc.ConnectionImpl.getServerCharacterEncoding(ConnectionImpl.java:3286) 
        at com.mysql.jdbc.MysqlIO.sendConnectionAttributes(MysqlIO.java:1987) 
        at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1913) 
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1290) 
        at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2493) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2526) 
        ... 15 more 
[2019-01-01 23:40:04] [ERROR] [com.alibaba.druid.pool.DruidDataSource:2469] create connection SQLException, url: jdbc:mysql://localhost:3306/jeecg?useUnicode=true&characterEncoding=UTF-8, errorCode 0, state 08001 
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. 
        at sun.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.Util.getInstance(Util.java:386) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2575) 
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311) 
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834) 
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
        at sun.reflect.GeneratedConstructorAccessor61.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) 
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:149) 
        at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:143) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1515) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578) 
        at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466) 
Caused by: java.lang.NullPointerException 
        at com.mysql.jdbc.ConnectionImpl.getServerCharacterEncoding(ConnectionImpl.java:3286) 
        at com.mysql.jdbc.MysqlIO.sendConnectionAttributes(MysqlIO.java:1987) 
        at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1913) 
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1290) 
        at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2493) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2526) 
        ... 15 more 
[2019-01-01 23:40:04] [ERROR] [com.alibaba.druid.pool.DruidDataSource:2469] create connection SQLException, url: jdbc:mysql://localhost:3306/jeecg?useUnicode=true&characterEncoding=UTF-8, errorCode 0, state 08001 
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. 
        at sun.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.Util.getInstance(Util.java:386) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2575) 
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311) 
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834) 
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
        at sun.reflect.GeneratedConstructorAccessor61.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) 
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:149) 
        at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:143) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1515) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578) 
        at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466) 
Caused by: java.lang.NullPointerException 
        at com.mysql.jdbc.ConnectionImpl.getServerCharacterEncoding(ConnectionImpl.java:3286) 
        at com.mysql.jdbc.MysqlIO.sendConnectionAttributes(MysqlIO.java:1987) 
        at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1913) 
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1290) 
        at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2493) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2526) 
        ... 15 more 
[2019-01-01 23:40:05] [ERROR] [com.alibaba.druid.pool.DruidDataSource:2469] create connection SQLException, url: jdbc:mysql://localhost:3306/jeecg?useUnicode=true&characterEncoding=UTF-8, errorCode 0, state 08001 
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. 
        at sun.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.Util.getInstance(Util.java:386) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2575) 
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311) 
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834) 
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
        at sun.reflect.GeneratedConstructorAccessor61.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) 
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:149) 
        at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:143) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1515) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578) 
        at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466) 
Caused by: java.lang.NullPointerException 
        at com.mysql.jdbc.ConnectionImpl.getServerCharacterEncoding(ConnectionImpl.java:3286) 
        at com.mysql.jdbc.MysqlIO.sendConnectionAttributes(MysqlIO.java:1987) 
        at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1913) 
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1290) 
        at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2493) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2526) 
        ... 15 more 
[2019-01-01 23:40:05] [WARN] [org.hibernate.engine.jdbc.spi.SqlExceptionHelper:143] SQL Error: 0, SQLState: null 
[2019-01-01 23:40:05] [ERROR] [org.hibernate.engine.jdbc.spi.SqlExceptionHelper:144] wait millis 60000, active 0, maxActive 50, creating 0 
[2019-01-01 23:40:05] [WARN] [org.springframework.web.context.support.XmlWebApplicationContext:489] Exception encountered during context initialization - cancelling refresh attempt 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dynamicTask' defined in file [D:\OW\workspace\jeecg\target\classes\spring-mvc-timeTask.xml]: Invocation of init method failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1554) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) 
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302) 
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229) 
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298) 
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) 
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:706) 
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762) 
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) 
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403) 
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) 
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) 
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4135) 
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4630) 
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
        at org.apache.catalina.core.StandardHost.start(StandardHost.java:785) 
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445) 
        at org.apache.catalina.startup.Embedded.start(Embedded.java:825) 
        at org.codehaus.mojo.tomcat.AbstractRunMojo.startContainer(AbstractRunMojo.java:558) 
        at org.codehaus.mojo.tomcat.AbstractRunMojo.execute(AbstractRunMojo.java:255) 
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:106) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) 
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84) 
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59) 
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183) 
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161) 
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:317) 
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152) 
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:555) 
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214) 
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:158) 
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
        at java.lang.reflect.Method.invoke(Method.java:601) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) 
        at org.codehaus.classworlds.Launcher.main(Launcher.java:46) 
Caused by: org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:519) 
        at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) 
        at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:420) 
        at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:257) 
        at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) 
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
        at $Proxy96.findByExample(Unknown Source) 
        at org.jeecgframework.core.timer.DynamicTask.loadTask(DynamicTask.java:251) 
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
        at java.lang.reflect.Method.invoke(Method.java:601) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1682) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1621) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1550) 
        ... 43 more 
Caused by: org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54) 
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125) 
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:304) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:169) 
        at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.extractPhysicalConnection(ConnectionProxyHandler.java:82) 
        at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.continueInvocation(ConnectionProxyHandler.java:138) 
        at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81) 
        at $Proxy143.setReadOnly(Unknown Source) 
        at org.springframework.jdbc.datasource.DataSourceUtils.prepareConnectionForTransaction(DataSourceUtils.java:155) 
        at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:433) 
        ... 58 more 
Caused by: com.alibaba.druid.pool.GetConnectionTimeoutException: wait millis 60000, active 0, maxActive 50, creating 0 
        at com.alibaba.druid.pool.DruidDataSource.getConnectionInternal(DruidDataSource.java:1508) 
        at com.alibaba.druid.pool.DruidDataSource.getConnectionDirect(DruidDataSource.java:1253) 
        at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4619) 
        at com.alibaba.druid.filter.stat.StatFilter.dataSource_getConnection(StatFilter.java:680) 
        at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4615) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1231) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1223) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:90) 
        at org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource.getConnection(AbstractRoutingDataSource.java:164) 
        at org.hibernate.service.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:141) 
        at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:277) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:297) 
        ... 65 more 
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. 
        at sun.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.Util.getInstance(Util.java:386) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2575) 
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311) 
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834) 
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
        at sun.reflect.GeneratedConstructorAccessor61.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) 
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:149) 
        at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:143) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1515) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578) 
        at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466) 
Caused by: java.lang.NullPointerException 
        at com.mysql.jdbc.ConnectionImpl.getServerCharacterEncoding(ConnectionImpl.java:3286) 
        at com.mysql.jdbc.MysqlIO.sendConnectionAttributes(MysqlIO.java:1987) 
        at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1913) 
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1290) 
        at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2493) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2526) 
        ... 15 more 
[2019-01-01 23:40:05] [INFO] [org.jeecgframework.core.timer.DataBaseSchedulerFactoryBean:766] Shutting down Quartz Scheduler 
[2019-01-01 23:40:05] [INFO] [org.quartz.core.QuartzScheduler:666] Scheduler schedulerFactory_$_NON_CLUSTERED shutting down. 
[2019-01-01 23:40:05] [INFO] [org.quartz.core.QuartzScheduler:585] Scheduler schedulerFactory_$_NON_CLUSTERED paused. 
[2019-01-01 23:40:05] [INFO] [org.quartz.core.QuartzScheduler:740] Scheduler schedulerFactory_$_NON_CLUSTERED shutdown complete. 
[2019-01-01 23:40:05] [INFO] [com.alibaba.druid.pool.DruidDataSource:1823] {dataSource-1} closed 
[2019-01-01 23:40:05] [ERROR] [org.springframework.web.context.ContextLoader:331] Context initialization failed 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dynamicTask' defined in file [D:\OW\workspace\jeecg\target\classes\spring-mvc-timeTask.xml]: Invocation of init method failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1554) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) 
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302) 
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229) 
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298) 
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) 
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:706) 
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762) 
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) 
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403) 
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) 
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) 
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4135) 
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4630) 
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
        at org.apache.catalina.core.StandardHost.start(StandardHost.java:785) 
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445) 
        at org.apache.catalina.startup.Embedded.start(Embedded.java:825) 
        at org.codehaus.mojo.tomcat.AbstractRunMojo.startContainer(AbstractRunMojo.java:558) 
        at org.codehaus.mojo.tomcat.AbstractRunMojo.execute(AbstractRunMojo.java:255) 
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:106) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) 
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84) 
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59) 
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183) 
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161) 
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:317) 
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152) 
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:555) 
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214) 
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:158) 
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
        at java.lang.reflect.Method.invoke(Method.java:601) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) 
        at org.codehaus.classworlds.Launcher.main(Launcher.java:46) 
Caused by: org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:519) 
        at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) 
        at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:420) 
        at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:257) 
        at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) 
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
        at $Proxy96.findByExample(Unknown Source) 
        at org.jeecgframework.core.timer.DynamicTask.loadTask(DynamicTask.java:251) 
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
        at java.lang.reflect.Method.invoke(Method.java:601) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1682) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1621) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1550) 
        ... 43 more 
Caused by: org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54) 
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125) 
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:304) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:169) 
        at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.extractPhysicalConnection(ConnectionProxyHandler.java:82) 
        at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.continueInvocation(ConnectionProxyHandler.java:138) 
        at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81) 
        at $Proxy143.setReadOnly(Unknown Source) 
        at org.springframework.jdbc.datasource.DataSourceUtils.prepareConnectionForTransaction(DataSourceUtils.java:155) 
        at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:433) 
        ... 58 more 
Caused by: com.alibaba.druid.pool.GetConnectionTimeoutException: wait millis 60000, active 0, maxActive 50, creating 0 
        at com.alibaba.druid.pool.DruidDataSource.getConnectionInternal(DruidDataSource.java:1508) 
        at com.alibaba.druid.pool.DruidDataSource.getConnectionDirect(DruidDataSource.java:1253) 
        at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4619) 
        at com.alibaba.druid.filter.stat.StatFilter.dataSource_getConnection(StatFilter.java:680) 
        at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4615) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1231) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1223) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:90) 
        at org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource.getConnection(AbstractRoutingDataSource.java:164) 
        at org.hibernate.service.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:141) 
        at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:277) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:297) 
        ... 65 more 
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. 
        at sun.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.Util.getInstance(Util.java:386) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2575) 
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311) 
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834) 
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
        at sun.reflect.GeneratedConstructorAccessor61.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) 
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:149) 
        at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:143) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1515) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578) 
        at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466) 
Caused by: java.lang.NullPointerException 
        at com.mysql.jdbc.ConnectionImpl.getServerCharacterEncoding(ConnectionImpl.java:3286) 
        at com.mysql.jdbc.MysqlIO.sendConnectionAttributes(MysqlIO.java:1987) 
        at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1913) 
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1290) 
        at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2493) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2526) 
        ... 15 more 
一月 01, 2019 11:40:05 下午 org.apache.catalina.core.StandardContext listenerStart 
SEVERE: 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 'dynamicTask' defined in file [D:\OW\workspace\jeecg\target\classes\spring-mvc-timeTask.xml]: Invocation of init method failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1554) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) 
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302) 
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229) 
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298) 
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) 
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:706) 
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762) 
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) 
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403) 
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) 
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) 
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4135) 
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4630) 
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
        at org.apache.catalina.core.StandardHost.start(StandardHost.java:785) 
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445) 
        at org.apache.catalina.startup.Embedded.start(Embedded.java:825) 
        at org.codehaus.mojo.tomcat.AbstractRunMojo.startContainer(AbstractRunMojo.java:558) 
        at org.codehaus.mojo.tomcat.AbstractRunMojo.execute(AbstractRunMojo.java:255) 
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:106) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) 
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84) 
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59) 
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183) 
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161) 
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:317) 
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152) 
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:555) 
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214) 
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:158) 
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
        at java.lang.reflect.Method.invoke(Method.java:601) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) 
        at org.codehaus.classworlds.Launcher.main(Launcher.java:46) 
Caused by: org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:519) 
        at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) 
        at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:420) 
        at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:257) 
        at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) 
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
        at $Proxy96.findByExample(Unknown Source) 
        at org.jeecgframework.core.timer.DynamicTask.loadTask(DynamicTask.java:251) 
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
        at java.lang.reflect.Method.invoke(Method.java:601) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1682) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1621) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1550) 
        ... 43 more 
Caused by: org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54) 
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125) 
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:304) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:169) 
        at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.extractPhysicalConnection(ConnectionProxyHandler.java:82) 
        at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.continueInvocation(ConnectionProxyHandler.java:138) 
        at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81) 
        at $Proxy143.setReadOnly(Unknown Source) 
        at org.springframework.jdbc.datasource.DataSourceUtils.prepareConnectionForTransaction(DataSourceUtils.java:155) 
        at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:433) 
        ... 58 more 
Caused by: com.alibaba.druid.pool.GetConnectionTimeoutException: wait millis 60000, active 0, maxActive 50, creating 0 
        at com.alibaba.druid.pool.DruidDataSource.getConnectionInternal(DruidDataSource.java:1508) 
        at com.alibaba.druid.pool.DruidDataSource.getConnectionDirect(DruidDataSource.java:1253) 
        at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4619) 
        at com.alibaba.druid.filter.stat.StatFilter.dataSource_getConnection(StatFilter.java:680) 
        at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4615) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1231) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1223) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:90) 
        at org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource.getConnection(AbstractRoutingDataSource.java:164) 
        at org.hibernate.service.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:141) 
        at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:277) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:297) 
        ... 65 more 
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. 
        at sun.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.Util.getInstance(Util.java:386) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2575) 
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311) 
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834) 
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
        at sun.reflect.GeneratedConstructorAccessor61.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) 
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:149) 
        at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:143) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1515) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578) 
        at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466) 
Caused by: java.lang.NullPointerException 
        at com.mysql.jdbc.ConnectionImpl.getServerCharacterEncoding(ConnectionImpl.java:3286) 
        at com.mysql.jdbc.MysqlIO.sendConnectionAttributes(MysqlIO.java:1987) 
        at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1913) 
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1290) 
        at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2493) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2526) 
        ... 15 more 
 
一月 01, 2019 11:40:05 下午 org.apache.catalina.core.StandardContext listenerStart 
SEVERE: Exception sending context initialized event to listener instance of class org.jeecgframework.web.system.listener.InitListener 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dynamicTask' defined in file [D:\OW\workspace\jeecg\target\classes\spring-mvc-timeTask.xml]: Invocation of init method failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1554) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) 
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302) 
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229) 
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298) 
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) 
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:706) 
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762) 
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) 
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403) 
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) 
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) 
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4135) 
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4630) 
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
        at org.apache.catalina.core.StandardHost.start(StandardHost.java:785) 
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445) 
        at org.apache.catalina.startup.Embedded.start(Embedded.java:825) 
        at org.codehaus.mojo.tomcat.AbstractRunMojo.startContainer(AbstractRunMojo.java:558) 
        at org.codehaus.mojo.tomcat.AbstractRunMojo.execute(AbstractRunMojo.java:255) 
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:106) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) 
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84) 
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59) 
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183) 
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161) 
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:317) 
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152) 
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:555) 
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214) 
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:158) 
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
        at java.lang.reflect.Method.invoke(Method.java:601) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) 
        at org.codehaus.classworlds.Launcher.main(Launcher.java:46) 
Caused by: org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:519) 
        at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) 
        at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:420) 
        at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:257) 
        at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) 
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
        at $Proxy96.findByExample(Unknown Source) 
        at org.jeecgframework.core.timer.DynamicTask.loadTask(DynamicTask.java:251) 
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
        at java.lang.reflect.Method.invoke(Method.java:601) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1682) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1621) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1550) 
        ... 43 more 
Caused by: org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54) 
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125) 
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:304) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:169) 
        at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.extractPhysicalConnection(ConnectionProxyHandler.java:82) 
        at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.continueInvocation(ConnectionProxyHandler.java:138) 
        at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81) 
        at $Proxy143.setReadOnly(Unknown Source) 
        at org.springframework.jdbc.datasource.DataSourceUtils.prepareConnectionForTransaction(DataSourceUtils.java:155) 
        at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:433) 
        ... 58 more 
Caused by: com.alibaba.druid.pool.GetConnectionTimeoutException: wait millis 60000, active 0, maxActive 50, creating 0 
        at com.alibaba.druid.pool.DruidDataSource.getConnectionInternal(DruidDataSource.java:1508) 
        at com.alibaba.druid.pool.DruidDataSource.getConnectionDirect(DruidDataSource.java:1253) 
        at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4619) 
        at com.alibaba.druid.filter.stat.StatFilter.dataSource_getConnection(StatFilter.java:680) 
        at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4615) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1231) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1223) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:90) 
        at org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource.getConnection(AbstractRoutingDataSource.java:164) 
        at org.hibernate.service.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:141) 
        at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:277) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:297) 
        ... 65 more 
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. 
        at sun.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.Util.getInstance(Util.java:386) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2575) 
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311) 
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834) 
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
        at sun.reflect.GeneratedConstructorAccessor61.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) 
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:149) 
        at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:143) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1515) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578) 
        at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466) 
Caused by: java.lang.NullPointerException 
        at com.mysql.jdbc.ConnectionImpl.getServerCharacterEncoding(ConnectionImpl.java:3286) 
        at com.mysql.jdbc.MysqlIO.sendConnectionAttributes(MysqlIO.java:1987) 
        at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1913) 
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1290) 
        at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2493) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2526) 
        ... 15 more 
 
一月 01, 2019 11:40:05 下午 org.apache.catalina.core.StandardContext listenerStart 
SEVERE: Exception sending context initialized event to listener instance of class org.jeecgframework.web.system.listener.OnlineListener 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dynamicTask' defined in file [D:\OW\workspace\jeecg\target\classes\spring-mvc-timeTask.xml]: Invocation of init method failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1554) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) 
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302) 
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229) 
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298) 
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) 
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:706) 
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762) 
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) 
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403) 
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) 
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) 
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4135) 
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4630) 
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
        at org.apache.catalina.core.StandardHost.start(StandardHost.java:785) 
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445) 
        at org.apache.catalina.startup.Embedded.start(Embedded.java:825) 
        at org.codehaus.mojo.tomcat.AbstractRunMojo.startContainer(AbstractRunMojo.java:558) 
        at org.codehaus.mojo.tomcat.AbstractRunMojo.execute(AbstractRunMojo.java:255) 
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:106) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) 
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) 
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84) 
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59) 
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183) 
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161) 
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:317) 
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152) 
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:555) 
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214) 
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:158) 
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
        at java.lang.reflect.Method.invoke(Method.java:601) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) 
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) 
        at org.codehaus.classworlds.Launcher.main(Launcher.java:46) 
Caused by: org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:519) 
        at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) 
        at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:420) 
        at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:257) 
        at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) 
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
        at $Proxy96.findByExample(Unknown Source) 
        at org.jeecgframework.core.timer.DynamicTask.loadTask(DynamicTask.java:251) 
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
        at java.lang.reflect.Method.invoke(Method.java:601) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1682) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1621) 
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1550) 
        ... 43 more 
Caused by: org.hibernate.exception.GenericJDBCException: Could not open connection 
        at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54) 
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125) 
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:304) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:169) 
        at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.extractPhysicalConnection(ConnectionProxyHandler.java:82) 
        at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.continueInvocation(ConnectionProxyHandler.java:138) 
        at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81) 
        at $Proxy143.setReadOnly(Unknown Source) 
        at org.springframework.jdbc.datasource.DataSourceUtils.prepareConnectionForTransaction(DataSourceUtils.java:155) 
        at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:433) 
        ... 58 more 
Caused by: com.alibaba.druid.pool.GetConnectionTimeoutException: wait millis 60000, active 0, maxActive 50, creating 0 
        at com.alibaba.druid.pool.DruidDataSource.getConnectionInternal(DruidDataSource.java:1508) 
        at com.alibaba.druid.pool.DruidDataSource.getConnectionDirect(DruidDataSource.java:1253) 
        at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4619) 
        at com.alibaba.druid.filter.stat.StatFilter.dataSource_getConnection(StatFilter.java:680) 
        at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4615) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1231) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1223) 
        at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:90) 
        at org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource.getConnection(AbstractRoutingDataSource.java:164) 
        at org.hibernate.service.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:141) 
        at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:277) 
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:297) 
        ... 65 more 
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. 
        at sun.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.Util.getInstance(Util.java:386) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) 
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2575) 
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311) 
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834) 
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
        at sun.reflect.GeneratedConstructorAccessor61.newInstance(Unknown Source) 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525) 
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) 
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:149) 
        at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218) 
        at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:143) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1515) 
        at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578) 
        at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466) 
Caused by: java.lang.NullPointerException 
        at com.mysql.jdbc.ConnectionImpl.getServerCharacterEncoding(ConnectionImpl.java:3286) 
        at com.mysql.jdbc.MysqlIO.sendConnectionAttributes(MysqlIO.java:1987) 
        at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1913) 
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1290) 
        at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2493) 
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2526) 
        ... 15 more 
 
一月 01, 2019 11:40:05 下午 org.apache.catalina.core.StandardContext start 
SEVERE: Error listenerStart 
一月 01, 2019 11:40:05 下午 org.apache.catalina.core.StandardContext start 
SEVERE: Context [/jeecg] startup failed due to previous errors 
一月 01, 2019 11:40:05 下午 org.apache.catalina.core.ApplicationContext log 
INFO: Closing Spring root WebApplicationContext 
一月 01, 2019 11:40:05 下午 org.apache.catalina.core.ApplicationContext log 
INFO: Shutting down log4j 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc 
SEVERE: The web application [/jeecg] registered the JBDC driver [com.alibaba.druid.mock.MockDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc 
SEVERE: The web application [/jeecg] registered the JBDC 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. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc 
SEVERE: The web application [/jeecg] registered the JBDC driver [com.microsoft.sqlserver.jdbc.SQLServerDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc 
SEVERE: The web application [/jeecg] registered the JBDC 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. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [net.sf.ehcache.CacheManager@1849c089] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [foreverCache.data] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [systemBaseCache.data] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [tagCache.data] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [sysAuthCache.data] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [commons-pool-EvictionTimer] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [schedulerFactory_Worker-1] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [schedulerFactory_Worker-2] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [schedulerFactory_Worker-3] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [schedulerFactory_Worker-4] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [schedulerFactory_Worker-5] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [schedulerFactory_Worker-6] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [schedulerFactory_Worker-7] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [schedulerFactory_Worker-8] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [schedulerFactory_Worker-9] but has failed to stop it. This is very likely to create a memory leak. 
一月 01, 2019 11:40:05 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 
SEVERE: The web application [/jeecg] appears to have started a thread named [schedulerFactory_Worker-10] but has failed to stop it. This is very likely to create a memory leak. 
 
 
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