求助：c3p0不定期出现SQLException：An attempt 异常_百度知道
求助：c3p0不定期出现SQLException：An attempt 异常
提问者采纳
~你的采纳是我前进的动力~~O(∩_∩)O，你可能也基本能catch那得看你catch的是什么异常喽，但是有些异常，属于运行时态的异常，互相帮助，runtimeexception，通常的异常都是继承普通的Exception，你要特殊定义出来捕捉才能捕捉到~如果你认可我的回答，请及时点击【采纳为满意回答】按钮~~手机提问的朋友在客户端右上角评价点【满意】即可，记得好评和采纳，谢谢
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出门在外也不愁A client timed out while waiting to acquire a resource from com.mchange.v2.resourcepool.BasicResourcePool@1a05bdb -- timeout at awaitAvailable()
java.sql.SQLException:&An&attempt&by&a&client&to&checkout&a&Connection&has&timed&out.
[Cause:&com.mchange.v2.resourcepool.TimeoutException:&A&client&timed&out&while&waiting&to&acquire&a&resource&from&com.mchange.v2.resourcepool.BasicResourcePool@1a05bdb&--&timeout&at&awaitAvailable()
&at&com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1317)
&at&com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:557)
&at&com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477)
&at&com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:525)
&at&com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128)
&at&org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:83)
&at&org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
&at&org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
&at&org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161)
&at&org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1700)
&at&org.hibernate.loader.Loader.doQuery(Loader.java:801)
&at&org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
&at&org.hibernate.loader.Loader.doList(Loader.java:2542)
&at&org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)
&at&org.hibernate.loader.Loader.list(Loader.java:2271)
&at&org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:119)
&at&org.hibernate.impl.SessionImpl.list(SessionImpl.java:1716)
&at&org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:347)
&at&org.hibernate.impl.CriteriaImpl.uniqueResult(CriteriaImpl.java:369)
&at&com.wa.xwolf.netctoss.dao.impl.CostImpl.findTotalPage(CostImpl.java:57)
&at&com.wa.xwolf.netctoss.service.CostService.findTotalPage(CostService.java:26)
&at&com.wa.xwolf.netctoss.controller.CostController.toCost(CostController.java:50)
&at&sun.reflect.NativeMethodAccessorImpl.invoke0(Native&Method)
&at&sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
&at&sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
&at&java.lang.reflect.Method.invoke(Method.java:597)
&at&org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
&at&org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)
&at&org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)
&at&org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
&at&org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
&at&org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
&at&org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
&at&javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
&at&org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
&at&javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
&at&org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
&at&org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
&at&org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
&at&org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
&at&org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
&at&org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
&at&org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
&at&org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
&at&org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
&at&org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
&at&org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
&at&org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
&at&org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
&at&org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
&at&org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
&at&java.lang.Thread.run(Thread.java:619)
&at&com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:111)
&at&com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:65)
&at&com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:527)
&at&com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128)
&at&org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:83)
&at&org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
&at&org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
&at&org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161)
&at&org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1700)
&at&org.hibernate.loader.Loader.doQuery(Loader.java:801)
&at&org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
&at&org.hibernate.loader.Loader.doList(Loader.java:2542)
&at&org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)
&at&org.hibernate.loader.Loader.list(Loader.java:2271)
&at&org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:119)
&at&org.hibernate.impl.SessionImpl.list(SessionImpl.java:1716)
&at&org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:347)
&at&org.hibernate.impl.CriteriaImpl.uniqueResult(CriteriaImpl.java:369)
&at&com.wa.xwolf.netctoss.dao.impl.CostImpl.findTotalPage(CostImpl.java:57)
&at&com.wa.xwolf.netctoss.service.CostService.findTotalPage(CostService.java:26)
&at&com.wa.xwolf.netctoss.controller.CostController.toCost(CostController.java:50)
&at&sun.reflect.NativeMethodAccessorImpl.invoke0(Native&Method)
&at&sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
&at&sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
&at&java.lang.reflect.Method.invoke(Method.java:597)
&at&org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
&at&org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)
&at&org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)
&at&org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
&at&org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
&at&org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
&at&org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
&at&javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
&at&org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
&at&javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
&at&org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
&at&org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
&at&org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
&at&org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
&at&org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
&at&org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
&at&org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
&at&org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
&at&org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
&at&org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
&at&org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
&at&org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
&at&org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
&at&org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
&at&org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
&at&java.lang.Thread.run(Thread.java:619)
偶尔出现这个问题，网上说是c3p0高并发情况下，效果不好。建议换一个连接池。待测试...
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指定的官方社区c3p0连接sybase数据库报错
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c3p0连接sybase数据库报错
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求助：c3p0不定期出现SQLException：An attempt 异常
在该库中重新建立了一个新的表空间以及用户，重新测试没有该问题出现。
其他类似问题
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等待您来回答
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出门在外也不愁求助：c3p0不定期出现SQLException：An attempt 异常_百度知道
求助：c3p0不定期出现SQLException：An attempt 异常
提问者采纳
runtimeexception那得看你catch的是什么异常喽，属于运行时态的异常，但是有些异常，你可能也基本能catch，通常的异常都是继承普通的Exception
其他类似问题
为您推荐：
c3p0的相关知识
等待您来回答
下载知道APP
随时随地咨询
出门在外也不愁