长时间运行下JPA无法获取druid数据库连接

项目上线运行每当几天后就出现无法获取到数据库连接，头几天运行都还正常。

日志打印

org.springframework.orm.jpa.JpaSystemException: Unable to acquire JDBC Connection; nested exception is org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection
	at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:333) ~[spring-orm-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:241) ~[spring-orm-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:491) ~[spring-orm-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:59) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:147) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:133) ~[spring-data-jpa-1.10.5.RELEASE.jar:?]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) ~[spring-aop-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at com.sun.proxy.$Proxy223.findOne(Unknown Source) ~[?:?]
	at com.isesol.orm.jpa.AbstractJpaEntityManager.findOne(AbstractJpaEntityManager.java:93) ~[isesol-orm-jpa-1.0.0.jar:1.0.0]
	at com.isesol.orm.jpa.AbstractJpaEntityManager.findOne(AbstractJpaEntityManager.java:100) ~[isesol-orm-jpa-1.0.0.jar:1.0.0]
	at com.isesol.orm.jpa.AbstractJpaEntityManager$$FastClassBySpringCGLIB$$3a5951f4.invoke(<generated>) ~[isesol-orm-jpa-1.0.0.jar:1.0.0]
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:652) ~[spring-aop-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at com.isesol.rent.platform.manager.TRentLogBizDefineManager$$EnhancerBySpringCGLIB$$3355bf68.findOne(<generated>) ~[rent-core-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
	at com.isesol.rent.platform.interceptor.RentBizLogInterceptor.execute(RentBizLogInterceptor.java:41) [rent-core-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
	at com.isesol.api.rest.cgi.interceptor.AbstractRestRequestInterceptor.execute(AbstractRestRequestInterceptor.java:43) [isesol-rest-extension-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
	at com.isesol.api.rest.cgi.utils.RestHelpers.returnResponse(RestHelpers.java:98) [isesol-rest-extension-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
	at com.isesol.api.rest.cgi.utils.RestServiceUtils.invokePrepareInterceptors(RestServiceUtils.java:369) [isesol-rest-extension-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
	at com.isesol.api.rest.web.cgi.RestServiceController.handleRequest(RestServiceController.java:220) [isesol-rest-extension-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
	at sun.reflect.GeneratedMethodAccessor673.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_92]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_92]
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:220) [spring-web-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:134) [spring-web-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) [spring-webmvc-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) [spring-webmvc-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) [spring-webmvc-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) [spring-webmvc-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) [spring-webmvc-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) [spring-webmvc-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) [spring-webmvc-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) [spring-webmvc-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:650) [servlet-api.jar:?]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) [spring-webmvc-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) [servlet-api.jar:?]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) [catalina.jar:7.0.69]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [catalina.jar:7.0.69]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat7-websocket.jar:7.0.69]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [catalina.jar:7.0.69]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [catalina.jar:7.0.69]
	at com.isesol.platform.cat.http.HttpServletRequestReplacedFilter.doFilter(HttpServletRequestReplacedFilter.java:33) [iSESOL-platform-cat-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
	at com.isesol.rent.platform.config.RentHttpServletRequestReplacedFilter.doFilter(RentHttpServletRequestReplacedFilter.java:23) [RentHttpServletRequestReplacedFilter.class:?]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [catalina.jar:7.0.69]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [catalina.jar:7.0.69]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) [spring-web-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [catalina.jar:7.0.69]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [catalina.jar:7.0.69]
	at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:115) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.boot.web.support.ErrorPageFilter.access$000(ErrorPageFilter.java:59) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.boot.web.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:90) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:108) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [catalina.jar:7.0.69]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [catalina.jar:7.0.69]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) [catalina.jar:7.0.69]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) [catalina.jar:7.0.69]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) [catalina.jar:7.0.69]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) [catalina.jar:7.0.69]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) [catalina.jar:7.0.69]
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956) [catalina.jar:7.0.69]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) [catalina.jar:7.0.69]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436) [catalina.jar:7.0.69]
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078) [tomcat-coyote.jar:7.0.69]
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625) [tomcat-coyote.jar:7.0.69]
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) [tomcat-coyote.jar:7.0.69]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_92]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_92]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-coyote.jar:7.0.69]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_92]
Caused by: org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection
	at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:47) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:97) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:102) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:129) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getConnectionForTransactionManagement(LogicalConnectionManagedImpl.java:247) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.begin(LogicalConnectionManagedImpl.java:254) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.begin(JdbcResourceLocalTransactionCoordinatorImpl.java:203) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:56) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.enlistInCurrentTransaction(ExtendedEntityManagerCreator.java:401) ~[spring-orm-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.doJoinTransaction(ExtendedEntityManagerCreator.java:379) ~[spring-orm-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:330) ~[spring-orm-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at com.sun.proxy.$Proxy162.joinTransaction(Unknown Source) ~[?:?]
	at org.springframework.orm.jpa.EntityManagerFactoryUtils.doGetTransactionalEntityManager(EntityManagerFactoryUtils.java:229) ~[spring-orm-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:255) ~[spring-orm-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at com.sun.proxy.$Proxy162.createQuery(Unknown Source) ~[?:?]
	at org.springframework.data.jpa.repository.support.SimpleJpaRepository.getQuery(SimpleJpaRepository.java:649) ~[spring-data-jpa-1.10.5.RELEASE.jar:?]
	at org.springframework.data.jpa.repository.support.SimpleJpaRepository.getQuery(SimpleJpaRepository.java:626) ~[spring-data-jpa-1.10.5.RELEASE.jar:?]
	at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findOne(SimpleJpaRepository.java:385) ~[spring-data-jpa-1.10.5.RELEASE.jar:?]
	at sun.reflect.GeneratedMethodAccessor231.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_92]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_92]
	at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:503) ~[spring-data-commons-1.12.5.RELEASE.jar:?]
	at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:488) ~[spring-data-commons-1.12.5.RELEASE.jar:?]
	at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:460) ~[spring-data-commons-1.12.5.RELEASE.jar:?]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:61) ~[spring-data-commons-1.12.5.RELEASE.jar:?]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	... 69 more
Caused by: com.alibaba.druid.pool.GetConnectionTimeoutException: wait millis 60000, active 200, maxActive 200, creating 0
	at com.alibaba.druid.pool.DruidDataSource.getConnectionInternal(DruidDataSource.java:1505) ~[druid-1.1.8.jar:1.1.8]
	at com.alibaba.druid.pool.DruidDataSource.getConnectionDirect(DruidDataSource.java:1248) ~[druid-1.1.8.jar:1.1.8]
	at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4619) ~[druid-1.1.8.jar:1.1.8]
	at com.alibaba.druid.filter.logging.LogFilter.dataSource_getConnection(LogFilter.java:876) ~[druid-1.1.8.jar:1.1.8]
	at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4615) ~[druid-1.1.8.jar:1.1.8]
	at com.alibaba.druid.filter.logging.LogFilter.dataSource_getConnection(LogFilter.java:876) ~[druid-1.1.8.jar:1.1.8]
	at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4615) ~[druid-1.1.8.jar:1.1.8]
	at com.alibaba.druid.filter.stat.StatFilter.dataSource_getConnection(StatFilter.java:680) ~[druid-1.1.8.jar:1.1.8]
	at com.alibaba.druid.filter.FilterChainImpl.dataSource_connect(FilterChainImpl.java:4615) ~[druid-1.1.8.jar:1.1.8]
	at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1226) ~[druid-1.1.8.jar:1.1.8]
	at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1218) ~[druid-1.1.8.jar:1.1.8]
	at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:90) ~[druid-1.1.8.jar:1.1.8]
	at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:35) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:99) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:129) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getConnectionForTransactionManagement(LogicalConnectionManagedImpl.java:247) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.begin(LogicalConnectionManagedImpl.java:254) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.begin(JdbcResourceLocalTransactionCoordinatorImpl.java:203) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:56) ~[hibernate-core-5.2.4.Final.jar:5.2.4.Final]
	at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.enlistInCurrentTransaction(ExtendedEntityManagerCreator.java:401) ~[spring-orm-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.doJoinTransaction(ExtendedEntityManagerCreator.java:379) ~[spring-orm-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:330) ~[spring-orm-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at com.sun.proxy.$Proxy162.joinTransaction(Unknown Source) ~[?:?]
	at org.springframework.orm.jpa.EntityManagerFactoryUtils.doGetTransactionalEntityManager(EntityManagerFactoryUtils.java:229) ~[spring-orm-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:255) ~[spring-orm-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at com.sun.proxy.$Proxy162.createQuery(Unknown Source) ~[?:?]
	at org.springframework.data.jpa.repository.support.SimpleJpaRepository.getQuery(SimpleJpaRepository.java:649) ~[spring-data-jpa-1.10.5.RELEASE.jar:?]
	at org.springframework.data.jpa.repository.support.SimpleJpaRepository.getQuery(SimpleJpaRepository.java:626) ~[spring-data-jpa-1.10.5.RELEASE.jar:?]
	at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findOne(SimpleJpaRepository.java:385) ~[spring-data-jpa-1.10.5.RELEASE.jar:?]
	at sun.reflect.GeneratedMethodAccessor231.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_92]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_92]
	at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:503) ~[spring-data-commons-1.12.5.RELEASE.jar:?]
	at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:488) ~[spring-data-commons-1.12.5.RELEASE.jar:?]
	at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:460) ~[spring-data-commons-1.12.5.RELEASE.jar:?]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:61) ~[spring-data-commons-1.12.5.RELEASE.jar:?]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136) ~[spring-tx-4.3.5.RELEASE.jar:4.3.5.RELEASE]
	... 69 more

问题点

主要问题就是无法获取druid的数据库池连接：

• Caused by:
• org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection
• com.alibaba.druid.pool.GetConnectionTimeoutException: wait millis 60000, active 200, maxActive 200, creating 0

推测是数据库资源池资源没有被正常释放，导致不够用全部阻塞了； 因为我的这个业务并发不是很大，加上是新上线运行3天后才出的问题，这块可能性还是很大的；

我用的spring-data-jpa包，除了datasource是自定义配置的，其他基本都和一半用法差不多； 因为后台我们有很多Job在跑，通过日志查看确实错误源头就是job开始的；

方案总结

1、某块业务使用数据库连接资源未能正常释放，导致支持堵塞进而服务假死；

配置druid数据库连接池连接长时间占用强制回收来解决问题：

DruidDataSource druid = new DruidDataSource();
//配置druid连接超时占用强制回收
druid.setRemoveAbandoned(true);
druid.setRemoveAbandonedTimeout(3*60);
druid.setLogAbandoned(true);

2、网上还有种观点说jpa使用的hibernate在结合spring时并不会主动释放资源；hibernate默认在主动session close时才会释放连接资源；

LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
//配置连接释放模式：after_statement 请求执行后释放，on_close session主动关闭释放
jpaProp.setProperty("hibernate.connection.release_mode","after_statement");
factoryBean.setJpaProperties(jpaProp);

本文由 Owen Jia 创作，采用 知识共享署名4.0 国际许可协议进行许可

本站文章除注明转载/出处外，均为本站原创或翻译，转载前请务必署名

最后编辑时间为: 2019/02/11 15:20