HikariPool-1 - 无法验证连接 org.postgresql.jdbc.PgConnection@2a84e649（此连接已关闭。）
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【中文标题】HikariPool-1 - 无法验证连接 org.postgresql.jdbc.PgConnection@2a84e649（此连接已关闭。）【英文标题】：HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@2a84e649 (This connection has been closed.) 【发布时间】：2019-03-03 07:31:18 【问题描述】：我正在使用 Postgresql 和 spring boot 2.0.4。尝试一个接一个地执行查询时会引发以下错误。我已经执行了以下查询，并且计数不断增加。
SELECT COUNT(*) FROM pg_stat_activity WHERE state ILIKE '%idle%';
我已将这些属性和依赖项用于连接池。然而，它给出了同样的错误
spring.datasource.dbcp2.initial-size=10
spring.datasource.dbcp2.max-total=25
spring.datasource.dbcp2.pool-prepared-statements=true
spring.datasource.hikari.max-lifetime=600000
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-dbcp2</artifactId>
<version>2.1.1</version>
</dependency>
错误：
2018-09-27 16:43:25.481 WARN 9085 --- [nio-8081-exec-4] com.zaxxer.hikari.pool.PoolBase : HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@2a84e649 (This connection has been closed.)
2018-09-27 16:43:40.490 WARN 9085 --- [nio-8081-exec-4] com.zaxxer.hikari.pool.PoolBase : HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@9faf6ae (This connection has been closed.)
2018-09-27 16:44:00.934 WARN 9085 --- [nio-8081-exec-4] com.zaxxer.hikari.pool.PoolBase : HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@24723851 (This connection has been closed.)
2018-09-27 16:44:00.935 WARN 9085 --- [nio-8081-exec-4] o.h.engine.jdbc.spi.SqlExceptionHelper : SQL Error: 0, SQLState: 08003
2018-09-27 16:44:00.936 ERROR 9085 --- [nio-8081-exec-4] o.h.engine.jdbc.spi.SqlExceptionHelper : HikariPool-1 - Connection is not available, request timed out after 49443ms.
2018-09-27 16:44:00.936 WARN 9085 --- [nio-8081-exec-4] o.h.engine.jdbc.spi.SqlExceptionHelper : SQL Error: 0, SQLState: 08003
2018-09-27 16:44:00.936 ERROR 9085 --- [nio-8081-exec-4] o.h.engine.jdbc.spi.SqlExceptionHelper : This connection has been closed.
2018-09-27 16:44:00.938 ERROR 9085 --- [nio-8081-exec-4] com.netelixir.dao.EmailStatsDao : Exception occured due to javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection
编辑 - 1
WARN 11920 --- [l-1 housekeeper] com.zaxxer.hikari.pool.ProxyLeakTask : Connection leak detection triggered for org.postgresql.jdbc.PgConnection@603cfde6 on thread http-nio-8081-exec-6, stack trace follows
java.lang.Exception: Apparent connection leak detected
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:128) ~[HikariCP-2.7.9.jar:na]
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:35) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:106) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:136) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.connection(StatementPreparerImpl.java:47) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$5.doPrepare(StatementPreparerImpl.java:145) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:171) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareQueryStatement(StatementPreparerImpl.java:147) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1985) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1915) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1893) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.doQuery(Loader.java:938) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:341) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.doList(Loader.java:2692) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.doList(Loader.java:2675) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2507) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.list(Loader.java:2502) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:502) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:392) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:216) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1490) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1445) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1414) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.query.Query.getResultList(Query.java:146) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at com.netelixir.dao.EmailStatsDao.getEmailStatsTableData(EmailStatsDao.java:146) ~[classes/:na]
at com.netelixir.dao.EmailStatsDao$$FastClassBySpringCGLIB$$c924bff4.invoke(<generated>) ~[classes/:na]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139) ~[spring-tx-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294) ~[spring-tx-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) ~[spring-tx-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at com.netelixir.dao.EmailStatsDao$$EnhancerBySpringCGLIB$$5e0a7d71.getEmailStatsTableData(<generated>) ~[classes/:na]
at com.netelixir.service.AdminDashBoardService.getLastSevenDaysData(AdminDashBoardService.java:43) ~[classes/:na]
at com.netelixir.controller.AdminDashBoardController.getChartData(AdminDashBoardController.java:44) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.32.jar:8.5.32]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilterInternal(BasicAuthenticationFilter.java:158) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:96) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:147) ~[spring-session-core-2.0.5.RELEASE.jar:2.0.5.RELEASE]
at org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:81) ~[spring-session-core-2.0.5.RELEASE.jar:2.0.5.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at com.netelixir.config.RequestFilter.doFilter(RequestFilter.java:33) ~[classes/:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:800) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1471) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_181]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_181]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-8.5.32.jar:8.5.32]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
EmailStatsDao
import com.nidhi.model.EmailReportStats;
import com.nidhi.repository.EmailReportsRepository;
import java.text.DecimalFormat;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceContext;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.query.Query;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
/**
*
* @author nidhi
*/
@Repository
@Transactional
@Component
public class EmailStatsDao implements EmailReportsRepository
private static final Logger LOG = LoggerFactory.getLogger(EmailStatsDao.class);
@Autowired
EmailReportsRepository emailReportsRepository;
@Autowired
private EntityManagerFactory entityManagerFactory;
@PersistenceContext
public EntityManager em;
@Override
public List<EmailReportStats> findByclientId(int clientId)
return emailReportsRepository.findByclientId(clientId);
@Override
public <S extends EmailReportStats> S save(S s)
return emailReportsRepository.save(s);
@Override
public <S extends EmailReportStats> Iterable<S> saveAll(Iterable<S> itrbl)
return emailReportsRepository.saveAll(itrbl);
@Override
public Optional<EmailReportStats> findById(Integer id)
return emailReportsRepository.findById(id);
@Override
public boolean existsById(Integer id)
return emailReportsRepository.existsById(id);
@Override
public Iterable<EmailReportStats> findAll()
return emailReportsRepository.findAll();
@Override
public Iterable<EmailReportStats> findAllById(Iterable<Integer> itrbl)
return emailReportsRepository.findAllById(itrbl);
@Override
public long count()
return emailReportsRepository.count();
@Override
public void deleteById(Integer id)
emailReportsRepository.deleteById(id);
@Override
public void delete(EmailReportStats t)
emailReportsRepository.delete(t);
@Override
public void deleteAll(Iterable<? extends EmailReportStats> itrbl)
emailReportsRepository.deleteAll();
@Override
public void deleteAll()
emailReportsRepository.deleteAll();
public List<EmailReportStats> getEmailStatsData(String pSqlQuery)
List<EmailReportStats> emailReportStatses = new ArrayList<>();
List<EmailReportStats> emailReportStats = new ArrayList<>();
Session session = entityManagerFactory.unwrap(SessionFactory.class).openSession();
try
emailReportStatses = session.createNativeQuery(pSqlQuery).addEntity(EmailReportStats.class).list();
if(!emailReportStatses.isEmpty())
// DateTimeFormatter formatter=DateTimeFormatter.ofPattern("dd MMM");
for (EmailReportStats emailReport : emailReportStatses)
emailReport.setDate(LocalDate.parse(emailReport.getDate()).format(DateTimeFormatter.ofPattern("dd MMM")));
emailReportStats.add(emailReport);
catch (Exception exception)
LOG.error("Exception occured due to " + exception);
finally
if (session != null)
session.close();
return emailReportStats;
public List<EmailReportStats> getEmailStatsTableData(String pSqlQuery, int clientId)
List<EmailReportStats> emailReportStatses = new ArrayList<>();
List<EmailReportStats> emailReportStats = new ArrayList<>();
List<Object[]> data=new ArrayList();
Session session = entityManagerFactory.unwrap(SessionFactory.class).openSession();
try
data=entityManagerFactory.createEntityManager().createQuery(pSqlQuery).getResultList();
// data = q.list();
for(Object[] list: data)
EmailReportStats reportStats=new EmailReportStats();
DecimalFormat decimalFormat = new DecimalFormat("#.##");
reportStats.setRevenue(Float.valueOf(decimalFormat.format((Double)list[0])));
reportStats.setOrders(Float.valueOf(decimalFormat.format((Double)list[1])));
reportStats.setimpressions(((Long)list[2]).intValue());
reportStats.setAccountId((Integer)list[3]);
reportStats.setSearchEngineId((Integer)list[4]);
reportStats.setDateType((String)list[5]);
emailReportStats.add(reportStats);
catch (Exception exception)
LOG.error("Exception occured due to " + exception);
finally
if (session != null)
session.close();
return emailReportStats;
public List<EmailReportStats> getEmailSparkLinesData(String pSqlQuery)
List<EmailReportStats> emailReportStats = new ArrayList<>();
Session session = entityManagerFactory.unwrap(SessionFactory.class).openSession();
try
emailReportStats = session.createNativeQuery(pSqlQuery).addEntity(EmailReportStats.class).list();
catch (Exception exception)
LOG.error("Exception occured due to " + exception);
finally
if (session != null)
session.close();
return emailReportStats;
【问题讨论】：
如果您使用 Hikari，为什么要设置 dbcp2 设置？设置 Hikari 的最小值和最大值，确保它们不同。如果您不这样做，则不会检查它们在池中是否有效。 @Deinum，我删除了 dbcp2 属性并添加了以下属性。错误的频率有所降低，但问题仍然存在。任何帮助，将不胜感激。spring.datasource.hikari.minimumIdle=5 spring.datasource.hikari.maximumPoolSize=20 spring.datasource.hikari.connectionTimeout=30000 spring.datasource.hikari.idleTimeout=600000 spring.datasource.hikari.maxLifetime=1800000
【参考方案1】：
在 Spring Boot 2.x 中，Hikari 是默认连接池，因此如果您有 JPA，则无需在 pom 中添加 Hikari 依赖项，但如果您想使用 dbcp2，则需要排除Hikari 并添加 dbcp2 依赖。
所以在你的情况下，你混合了两者的设置。
如果只是想继续使用 Hikari，请删除 dbcp2 依赖项并将您的数据源属性更改为使用 spring.datasource.hikari。
添加以下属性以验证连接：
spring.datasource.testWhileIdle=true
spring.datasource.test-on-borrow=true
要进一步检查是否有任何泄漏，请添加以下属性并检查您的池连接情况以及是否有任何泄漏。
spring.datasource.hikari.leakDetectionThreshold=2000
logging.level.com.zaxxer.hikari=DEBUG
【讨论】：
您好 kj007，我删除了 dbcp2 属性并添加了以下属性。错误的频率有所降低，但问题仍然存在。任何帮助，将不胜感激。spring.datasource.hikari.minimumIdle=5 spring.datasource.hikari.maximumPoolSize=20 spring.datasource.hikari.connectionTimeout=30000 spring.datasource.hikari.idleTimeout=600000 spring.datasource.hikari.maxLifetime=1800000
请不要建议设置 validationQuery... 这仅适用于不支持 java8 的 JDBC4 位的驱动程序，现在情况不再如此。 JDBC 4 有更好的方法来验证连接。
@nidhi 一个问题您的查询需要多长时间？是否超过了理想的连接超时或连接超时？？
@kj007 我已按照您的建议进行了更改，似乎存在连接泄漏。你能帮我修一下吗？
还向我显示日志，它将向您显示如下：清理后统计信息（总计=10，活动=0，空闲=10，等待=0）以上是关于HikariPool-1 - 无法验证连接 org.postgresql.jdbc.PgConnection@2a84e649（此连接已关闭。）的主要内容，如果未能解决你的问题，请参考以下文章
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