Java 提取数据库元数据时出错；嵌套异常是com.mysql.jdbc.exceptions.jdbc4。连接关闭后不允许进行任何操作
我有一个每20分钟运行一次的计划任务，它是通过基于spring boot的“@scheduled（cron=“0/20***？”）配置的。在这个任务中，我需要从mysql中搜索一些数据，然后将它们保存到redis中。以下是我的数据库配置：Java 提取数据库元数据时出错；嵌套异常是com.mysql.jdbc.exceptions.jdbc4。连接关闭后不允许进行任何操作,java,mysql,spring,spring-mybatis,druid,Java,Mysql,Spring,Spring Mybatis,Druid,我有一个每20分钟运行一次的计划任务，它是通过基于spring boot的“@scheduled（cron=“0/20***？”）配置的。在这个任务中，我需要从mysql中搜索一些数据，然后将它们保存到redis中。以下是我的数据库配置： mybatis.configuration.map-underscore-to-camel-case=true spring.datasource.type=com.alibaba.druid.pool.DruidDataSource #spring.data
mybatis.configuration.map-underscore-to-camel-case=true
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
#spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.initialSize=1
spring.datasource.minIdle=1
spring.datasource.maxActive=20
spring.datasource.maxWait=60000
spring.datasource.timeBetweenEvictionRunsMillis=60000
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=SELECT 'x'
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
spring.datasource.poolPreparedStatements=true
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
spring.datasource.filters=stat,wall,slf4j
spring.datasource.initialize=false
2018-02-14 02:20:00,003 [pool-5-thread-1] INFO c.x.r.b.r.provider.YourFavoriates Method:executeItemInfoUpdateTaskRun Line:359 - Host IP 10.189.145.64: Scheduled task(executeItemInfoUpdateTask) is begining to save the available skuId information of all storeId from mysql to cache.
2018-02-14 02:20:00,026 [pool-5-thread-1] INFO o.s.b.f.xml.XmlBeanDefinitionReader Method:loadBeanDefinitions Line:317 - Loading XML bean definitions from class path resource [org/springframework/jdbc/support/sql-error-codes.xml]
2018-02-14 02:20:00,060 [pool-5-thread-1] INFO o.s.j.support.SQLErrorCodesFactory Method:<init> Line:127 - SQLErrorCodes loaded: [DB2, Derby, H2, HSQL, Informix, MS-SQL, MySQL, Oracle, PostgreSQL, Sybase, Hana]
2018-02-14 02:20:00,067 [pool-5-thread-1] WARN o.s.j.support.SQLErrorCodesFactory Method:getErrorCodes Line:218 - Error while extracting database name - falling back to empty error codes
org.springframework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.
at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:342)
at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:366)
at org.springframework.jdbc.support.SQLErrorCodesFactory.getErrorCodes(SQLErrorCodesFactory.java:212)
at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.setDataSource(SQLErrorCodeSQLExceptionTranslator.java:134)
at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.<init>(SQLErrorCodeSQLExceptionTranslator.java:97)
at org.mybatis.spring.MyBatisExceptionTranslator.initExceptionTranslator(MyBatisExceptionTranslator.java:87)
at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:72)
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446)
at com.sun.proxy.$Proxy86.selectOne(Unknown Source)
at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:166)
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:82)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59)
at com.sun.proxy.$Proxy87.countForQueryAvailableSku(Unknown Source)
at com.xstore.recommend.biz.recommend.provider.YourFavoriates.getAvailableItems(YourFavoriates.java:68)
at com.xstore.recommend.biz.recommend.provider.YourFavoriates.executeItemInfoUpdateTaskRun(YourFavoriates.java:360)
at com.xstore.recommend.biz.recommend.provider.YourFavoriates.executeItemInfoUpdateTask(YourFavoriates.java:467)
at sun.reflect.GeneratedMethodAccessor126.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:65)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.Util.getInstance(Util.java:408)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:918)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:897)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:886)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:860)
at com.mysql.jdbc.ConnectionImpl.throwConnectionClosedException(ConnectionImpl.java:1198)
at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.java:1193)
at com.mysql.jdbc.ConnectionImpl.getMetaData(ConnectionImpl.java:2903)
at com.mysql.jdbc.ConnectionImpl.getMetaData(ConnectionImpl.java:2898)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:126)
at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:108)
at org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.invoke(AbstractCreateStatementInterceptor.java:70)
at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:108)
at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:81)
at com.sun.proxy.$Proxy118.getMetaData(Unknown Source)
at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:331)
... 28 common frames omitted
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 31,199,913 milliseconds ago. The last packet sent successfully to the server was 31,199,929 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:989)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3746)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2509)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2680)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2501)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858)
at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1197)
at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.tomcat.jdbc.pool.StatementFacade$StatementProxy.invoke(StatementFacade.java:138)
at com.sun.proxy.$Proxy119.execute(Unknown Source)
at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:63)
at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79)
at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63)
at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324)
at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433)
... 21 common frames omitted
Caused by: java.net.SocketException: 断开的管道
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:109)
at java.net.SocketOutputStream.write(SocketOutputStream.java:153)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3728)
... 46 common frames omitted
2018-02-14 02:20:00,069 [pool-5-thread-1] ERROR c.x.r.b.r.provider.YourFavoriates Method:executeItemInfoUpdateTask Line:469 - Exception while executing executeItemInfoUpdateTaskRun.
org.springframework.dao.RecoverableDataAccessException:
### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 31,199,913 milliseconds ago. The last packet sent successfully to the server was 31,199,929 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.
### The error may exist in URL [jar:file:/home/export/App/intelligenceRS.man.7fresh.com/WEB-INF/lib/xstore-intelligence-service-1.0.0-SNAPSHOT.jar!/mapper/popMd/PopMdMapper.xml]
### The error may involve defaultParameterMap
### The error occurred while setting parameters
### SQL: select count(1) from search_base_data where isIgnoreSearchVisible = 0 and has_stock = 1 and search_invisible = 1
### Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 31,199,913 milliseconds ago. The last packet sent successfully to the server was 31,199,929 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.
; SQL []; The last packet successfully received from the server was 31,199,913 milliseconds ago. The last packet sent successfully to the server was 31,199,929 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 31,199,913 milliseconds ago. The last packet sent successfully to the server was 31,199,929 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.
at org.springframework.jdbc.support.SQLExceptionSubclassTranslator.doTranslate(SQLExceptionSubclassTranslator.java:98)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:73)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81)
at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73)
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446)
at com.sun.proxy.$Proxy86.selectOne(Unknown Source)
at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:166)
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:82)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59)
at com.sun.proxy.$Proxy87.countForQueryAvailableSku(Unknown Source)
at com.xstore.recommend.biz.recommend.provider.YourFavoriates.getAvailableItems(YourFavoriates.java:68)
at com.xstore.recommend.biz.recommend.provider.YourFavoriates.executeItemInfoUpdateTaskRun(YourFavoriates.java:360)
at com.xstore.recommend.biz.recommend.provider.YourFavoriates.executeItemInfoUpdateTask(YourFavoriates.java:467)
at sun.reflect.GeneratedMethodAccessor126.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:65)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 31,199,913 milliseconds ago. The last packet sent successfully to the server was 31,199,929 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:989)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3746)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2509)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2680)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2501)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858)
at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1197)
at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.tomcat.jdbc.pool.StatementFacade$StatementProxy.invoke(StatementFacade.java:138)
at com.sun.proxy.$Proxy119.execute(Unknown Source)
at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:63)
at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79)
at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63)
at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324)
at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433)
... 21 common frames omitted
Caused by: java.net.SocketException: 断开的管道
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:109)
at java.net.SocketOutputStream.write(SocketOutputStream.java:153)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3728)
... 46 common frames omitted
2018-02-14 02:20:00003[pool-5-thread-1]INFO c.x.r.b.r.provider.YourFavorites方法：executeItemInfoUpdateTask运行行：359-主机IP 10.189.145.64：计划任务（executeItemInfoUpdateTask）开始将mysql中所有storeId的可用skuId信息保存到缓存中。
2018-02-14 02:20:00026[pool-5-thread-1]INFO o.s.b.f.xml.XmlBeanDefinitionReader方法：loadBeanDefinitions行：317-从类路径资源[org/springframework/jdbc/support/sql error codes.xml]加载xml bean定义
2018-02-14 02:20:00060[pool-5-thread-1]INFO o.s.j.support.SQLErrorCodesFactory方法：行：127-SQLErrorCodes加载：[DB2、Derby、H2、HSQL、Informix、MS-SQL、MySQL、Oracle、PostgreSQL、Sybase、Hana]
2018-02-14 02:20:00067[pool-5-thread-1]警告o.s.j.support.SQLErrorCodesFactory方法：getErrorCodes行：218-提取数据库名称时出错-返回空错误代码
org.springframework.jdbc.support.MetaDataAccessException:提取数据库元数据时出错；嵌套异常为com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException：连接关闭后不允许进行任何操作。
位于org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData（JdbcUtils.java:342）
位于org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData（JdbcUtils.java:366）
位于org.springframework.jdbc.support.SQLErrorCodesFactory.getErrorCodes（SQLErrorCodesFactory.java:212）
位于org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.setDataSource（SQLErrorCodeSQLExceptionTranslator.java:134）
位于org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator。（SQLErrorCodeSQLExceptionTranslator.java:97）
在org.mybatis.spring.MyBatisExceptionTranslator.initExceptionTranslator（MyBatisExceptionTranslator.java:87）
在org.mybatis.spring.MyBatisExceptionTranslator.translateException如果可能（MyBatisExceptionTranslator.java:72）
位于org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke（SqlSessionTemplate.java:446）
在com.sun.proxy.$Proxy86.selectOne（未知来源）
位于org.mybatis.spring.SqlSessionTemplate.selectOne（SqlSessionTemplate.java:166）
位于org.apache.ibatis.binding.MapperMethod.execute（MapperMethod.java:82）
位于org.apache.ibatis.binding.MapperProxy.invoke（MapperProxy.java:59）
位于com.sun.proxy.$Proxy87.countForQueryAvailableSku（未知来源）
在com.xstore.recomment.biz.recomment.provider.YourFavorites.getAvailableItems（YourFavorites.java:68）上
在com.xstore.recomment.biz.recomment.provider.yourforfavorites.executeItemInfoUpdateTaskRun上（yourforfairiates.java:360）
在com.xstore.recomment.biz.recomment.provider.yourforfairiates.executeItemInfoUpdate任务（yourforfairiates.java:467）
位于sun.reflect.GeneratedMethodAccessor126.invoke（未知源）
在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）中
位于java.lang.reflect.Method.invoke（Method.java:497）
位于org.springframework.scheduling.support.ScheduledMethodRunnable.run（ScheduledMethodRunnable.java:65）
位于org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run（DelegatingErrorHandlingRunnable.java:54）
位于org.springframework.scheduling.concurrent.ReschedulingRunnable.run（ReschedulingRunnable.java:81）
位于java.util.concurrent.Executors$RunnableAdapter.call（Executors.java:511）
在java.util.concurrent.FutureTask.run（FutureTask.java:266）处
位于java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201（ScheduledThreadPoolExecutor.java:180）
位于java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run（ScheduledThreadPoolExecutor.java:293）
位于java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1142）
位于java.util.concurrent.ThreadPoolExecutor$Worker.run（ThreadPoolExecutor.java:617）
运行（Thread.java:745）
原因：com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException:连接关闭后不允许进行任何操作。
位于sun.reflect.NativeConstructorAccessorImpl.newInstance0（本机方法）
位于sun.reflect.NativeConstructorAccessorImpl.newInstance（NativeConstructorAccessorImpl.java:62）
在sun.reflect.DelegatingConstructorAccessorImpl.newInstance（DelegatingConstructorAccessorImpl.java:45）
位于java.lang.reflect.Constructor.newInstance（Constructor.java:422）
位于com.mysql.jdbc.Util.HandleneInstance（Util.java:425）
位于com.mysql.jdbc.Util.getInstance（Util.java:408）
位于com.mysql.jdbc.SQLError.createSQLException（SQLError.java:918）
位于com.mysql.jdbc.SQLError.createSQLException（SQLError.java:897）
位于com.mysql.jdbc.SQLError.createSQLException（SQLError.java:886）
位于com.mysql.jdbc.SQLError.createSQLException（SQLError.java:860）
位于com.mysql.jdbc.ConnectionImpl.throwConnectionClosedException（ConnectionImpl.java:1198）
位于com.mysql.jdbc.ConnectionImpl.checkClosed（ConnectionImpl.java:1193）
位于com.mysql.jdbc.ConnectionImpl.getMetaData（ConnectionImpl.java:2903）
位于com.mysql.jdbc.ConnectionImpl.getMetaData（ConnectionImpl.jav
spring.datasource.tomcat.min-idle=1
spring.datasource.tomcat.validation-query= select 1
spring.datasource.tomcat.validation-interval=30000
spring.datasource.tomcat.remove-abandoned-timeout=120
spring.datasource.tomcat.remove-abandoned=true
spring.datasource.tomcat.log-abandoned=true
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
#Druid 数据源配置，继承spring.datasource.* 配置，相同则覆盖
spring.datasource.druid.initial-size=2
spring.datasource.druid.max-active=30
spring.datasource.druid.min-idle=2
spring.datasource.druid.max-wait=1234
spring.datasource.druid.pool-prepared-statements=true
spring.datasource.druid.max-pool-prepared-statement-per-connection-size=5
#spring.datasource.druid.max-open-prepared-statements= #等价于上面的max-pool-prepared-statement-per-connection-size
spring.datasource.druid.validation-query=select 1
spring.datasource.druid.validation-query-timeout=1
spring.datasource.druid.test-on-borrow=true
spring.datasource.druid.test-on-return=true