HTTP状态 500 - 内部服务器错误


类型 异常报告

消息 Request processing failed; nested exception is org.hibernate.exception.GenericJDBCException: Cannot open connection

描述 服务器遇到一个意外的情况,阻止它完成请求。

例外情况

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.hibernate.exception.GenericJDBCException: Cannot open connection
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:656)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:529)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
	org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	com.jeecms.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.java:38)

根本原因。

org.hibernate.exception.GenericJDBCException: Cannot open connection
	org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:126)
	org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:114)
	org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
	org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)
	org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)
	org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
	org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161)
	org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1577)
	org.hibernate.loader.Loader.doQuery(Loader.java:696)
	org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
	org.hibernate.loader.Loader.loadCollection(Loader.java:2019)
	org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:59)
	org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:587)
	org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:83)
	org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1744)
	org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:366)
	org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:108)
	org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:131)
	org.hibernate.collection.PersistentList.size(PersistentList.java:114)
	com.jeecms.cms.entity.main.Content.getPageCount(Content.java:474)
	com.jeecms.cms.action.front.DynamicPageAct.content(DynamicPageAct.java:163)
	com.jeecms.cms.action.front.DynamicPageAct.dynamic(DynamicPageAct.java:98)
	sun.reflect.GeneratedMethodAccessor554.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:529)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
	org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	com.jeecms.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.java:38)

根本原因。

java.sql.SQLException: An attempt by a client to checkout a Connection has timed out.
	com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:106)
	com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:65)
	com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:527)
	com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128)
	org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:81)
	org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
	org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
	org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161)
	org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1577)
	org.hibernate.loader.Loader.doQuery(Loader.java:696)
	org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
	org.hibernate.loader.Loader.loadCollection(Loader.java:2019)
	org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:59)
	org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:587)
	org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:83)
	org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1744)
	org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:366)
	org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:108)
	org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:131)
	org.hibernate.collection.PersistentList.size(PersistentList.java:114)
	com.jeecms.cms.entity.main.Content.getPageCount(Content.java:474)
	com.jeecms.cms.action.front.DynamicPageAct.content(DynamicPageAct.java:163)
	com.jeecms.cms.action.front.DynamicPageAct.dynamic(DynamicPageAct.java:98)
	sun.reflect.GeneratedMethodAccessor554.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:529)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
	org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	com.jeecms.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.java:38)

根本原因。

com.mchange.v2.resourcepool.TimeoutException: A client timed out while waiting to acquire a resource from com.mchange.v2.resourcepool.BasicResourcePool@39c4ed23 -- timeout at awaitAvailable()
	com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1317)
	com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:557)
	com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477)
	com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:525)
	com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128)
	org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:81)
	org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
	org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
	org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161)
	org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1577)
	org.hibernate.loader.Loader.doQuery(Loader.java:696)
	org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
	org.hibernate.loader.Loader.loadCollection(Loader.java:2019)
	org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:59)
	org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:587)
	org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:83)
	org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1744)
	org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:366)
	org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:108)
	org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:131)
	org.hibernate.collection.PersistentList.size(PersistentList.java:114)
	com.jeecms.cms.entity.main.Content.getPageCount(Content.java:474)
	com.jeecms.cms.action.front.DynamicPageAct.content(DynamicPageAct.java:163)
	com.jeecms.cms.action.front.DynamicPageAct.dynamic(DynamicPageAct.java:98)
	sun.reflect.GeneratedMethodAccessor554.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:529)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
	org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	com.jeecms.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.java:38)

):注意 主要问题的全部 stack 信息可以在 server logs 里查看


Apache Tomcat/9.0.82