Spring Boot - 几天后无法获取JDBC源代码

问题描述 投票：1回答：1

我有一个Spring Boot 2.0应用程序。我已经配置了两个数据源。第一个是应用程序本身使用的数据库，第二个数据源用于从商业智能系统中提取产品名称。

我已经配置了Spring Boot，每分钟都可以运行一个任务，这样可以工作几天，之后我看到一个错误说是

“HikariPool-1 - 连接不可用，请求在30008ms后超时”

如果我重新启动应用程序，它将再次开始工作。

我正在使用Spring Data，我的数据源配置如下所示;

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
        entityManagerFactoryRef = "defaultEntityManagerFactory",
        transactionManagerRef = "defaultTransactionManager",
        basePackages = {
                "com.domain.visualisation.shared.repository"
        }
)
public class DefaultDbConfig {

    @Primary
    @Bean(name = "defaultDataSource")
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource defaultDataSource() {
        return DataSourceBuilder.create().build();
    }

    @Primary
    @Bean(name = "defaultEntityManagerFactory")
    public LocalContainerEntityManagerFactoryBean
    entityManagerFactory(
            EntityManagerFactoryBuilder builder,
            @Qualifier("defaultDataSource") DataSource dataSource
    ) {
        return builder
                .dataSource(dataSource)
                .packages("com.domain.visualisation.shared.entities")
                .persistenceUnit("default")
                .build();
    }

    @Primary
    @Bean(name = "defaultTransactionManager")
    public PlatformTransactionManager defaultTransactionManager(
            @Qualifier("defaultEntityManagerFactory") EntityManagerFactory defaultEntityManagerFactory
    ) {
        return new JpaTransactionManager(defaultEntityManagerFactory);
    }
}

以下是其中一个存储库的外观示例;

public interface LineShiftRepository extends CrudRepository<LineShift, Long> {

/**
 * Delete all shifts items before a given date
 * @param date date to use as cut-off
 */
@Transactional
@Query("DELETE FROM LineShift ls WHERE ls.endDate < :date")
void deleteDataBeforeDate(@Param("date") Date date);

/**
 * Return the most recent shift before a given date
 * @param date a date and time
 * @return LineShift before date
 */
@Query(value = "SELECT TOP 1 * FROM line_shifts WHERE start_timestamp < :date ORDER BY end_timestamp DESC", nativeQuery = true)
public LineShift getLastShift(@Param("date") Date date);

/**
 * Returns a line shift for the line and date
 * @param line the line
 * @param date the date
 * @return a single LineShift
 */
@Query("SELECT ls FROM LineShift ls WHERE ls.line = :line AND ls.startDate <= :date AND ls.endDate > :date")
public LineShift getLineShiftByLineAndDate(@Param("line") Line line, @Param("date") Date date);

}

我只能怀疑某个连接可能在某个地方没有被释放回池中，但是我不知道从哪里开始尝试找出它以及如何解决它。

应用程序属性如下所示;

spring.jpa.database-platform=org.hibernate.dialect.SQLServer2012Dialect

spring.datasource.jdbc-url=jdbc:sqlserver://SPETUK-VSQL01;databaseName=ProductionMetrics
spring.datasource.username=user
spring.datasource.password=password
spring.datasource.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver

# Products
trwbi.datasource.jdbc-url=jdbc:sqlserver://Spetuk-RS02;databaseName=bi
trwbi.datasource.username=username
trwbi.datasource.password=password
trwbi.datasource.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver

我设法获得了堆栈跟踪的副本;

2019-02-25 10:20:01.398 ERROR 6264 --- [o-8080-exec-151] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection] with root cause

java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30000ms.
        at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:669) ~[HikariCP-2.7.9.jar!/:na]
        at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:183) ~[HikariCP-2.7.9.jar!/:na]
        at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:148) ~[HikariCP-2.7.9.jar!/:na]
        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.internal.SessionImpl.connection(SessionImpl.java:524) ~[hibernate-core-5.2.17.Final.jar!/:5.2.17.Final]
        at sun.reflect.GeneratedMethodAccessor72.invoke(Unknown Source) ~[na:na]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_201]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_201]
        at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:223) ~[spring-core-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:207) ~[spring-core-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        at org.springframework.orm.jpa.vendor.HibernateJpaDialect$HibernateConnectionHandle.doGetConnection(HibernateJpaDialect.java:391) ~[spring-orm-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:154) ~[spring-orm-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:400) ~[spring-orm-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:378) ~[spring-tx-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:474) ~[spring-tx-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:289) ~[spring-tx-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) ~[spring-tx-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139) ~[spring-tx-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:135) ~[spring-data-jpa-2.0.9.RELEASE.jar!/:2.0.9.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.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-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.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:61) ~[spring-data-commons-2.0.9.RELEASE.jar!/:2.0.9.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.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]
        at com.sun.proxy.$Proxy98.findById(Unknown Source) ~[na:na]
        at com.zf.trw.visualisation.shared.service.LineService.findById(LineService.java:537) ~[classes!/:20190213_1523]
        at com.zf.trw.visualisation.ui.controller.LineController.getLineStatus(LineController.java:65) ~[classes!/:20190213_1523]
        at sun.reflect.GeneratedMethodAccessor102.invoke(Unknown Source) ~[na:na]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_201]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_201]
        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.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) ~[spring-security-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
        at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) ~[spring-security-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
        at org.springframework.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.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[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 org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) ~[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 org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) ~[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 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 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$SocketProcessor.doRun(NioEndpoint.java:1471) [tomcat-embed-core-8.5.32.jar!/:8.5.32]
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.32.jar!/:8.5.32]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.8.0_201]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.8.0_201]
        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(Unknown Source) [na:1.8.0_201

]

更多的信息。我在application.properties文件中应用于Hikari的设置未被应用，因此我没有看到任何与检测到泄漏有关的错误。我已经解决了这个问题，可以看到确实有泄漏。泄漏似乎源自控制器，该控制器调用服务上的方法，该方法调用JpaResository上的方法。问题是，我不明白为什么会发生这种泄漏。

控制器方法是;

@RequestMapping("/{lineId}/product")
    @ResponseBody
    public String displayCurrentProductForline(@PathVariable("lineId") Long lineId) {
        Line line = lineService.findById(lineId);

        return line.getCurrentProductName() != null ? line.getCurrentProductName() : "Unknown Product";
    }

lineService中的方法是;

public Line findById(Long id) {
        Optional<Line> line = lineRepository.findById(id);

        return line.isPresent() ? line.get() : null;
    }

最后，存储库;

@Repository
public interface LineRepository extends CrudRepository<Line, Long> {

    /**
     * Return a list of lines by their active value
     * @param active the active value
     * @return List of lines
     */
    public List<Line> getByActive(Boolean active);

}

正如你所看到的，这里没有任何特殊的东西，我们只是从数据库中获取一条与它的Id相匹配的一条线，然后该线被传递给一个视图。

另一个更新，我已经将连接数设置为50，但是当我在数据库上运行查询以查看MSSQL数据库上的连接数时，它只显示4个连接而不是50个连接。

spring-boot hikaricp
1个回答
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投票

尝试将dataSourceClassName改为推荐的com.microsoft.sqlserver.jdbc.SQLServerDataSource

trwbi.datasource.driverClassName == com.microsoft.sqlserver.jdbc.SQLServerDataSource

MS SQL Server Microsoft com.microsoft.sqlserver.jdbc.SQLServerDataSource

根据版本，请遵循Hibernate对provider_class的建议

从Hibernate 4.3.6开始，有一个来自Hibernate的官方ConnectionProvider类，应该使用它来代替HikariCP实现。该类名为org.hibernate.hikaricp.internal.HikariCPConnectionProvider

您也可以使用添加leakDetectionThreshold属性找到泄漏

此属性控制在记录消息之前连接可以离开池的时间量，指示可能的连接泄漏。值为0表示禁用泄漏检测。启用泄漏检测的最低可接受值是2000（2秒）。

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