异常处理 | manual close is not allowed over a Spring managed SqlSession
背景：
今天启动一个老项目，控制台打印出以下异常，大概是说在Spring托管的SqlSession上不允许手动关闭：
java.lang.UnsupportedOperationException: Manual close is not allowed over a Spring managed SqlSession
at org.mybatis.spring.SqlSessionTemplate.close(SqlSessionTemplate.java:359)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.beans.factory.support.DisposableBeanAdapter.invokeCustomDestroyMethod(DisposableBeanAdapter.java:327)
at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:253)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:510)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:486)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:742)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:455)
at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1090)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:487)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5077)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5591)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1836)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:618)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:565)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401)
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:361)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
[DEBUG][2018-08-05 10:31:15,802][DisposableBeanAdapter:302] Invoking destroy method 'clone' on bean with name 'dataSource'
[DEBUG][2018-08-05 10:31:15,803][DisposableBeanAdapter:226] Invoking destroy() on bean with name 'ehcacheManager'
[INFO ][2018-08-05 10:31:15,803][EhCacheManagerFactoryBean:164] Shutting down EhCache CacheManager
[ERROR][2018-08-05 10:31:15,814][ContextLoader:319] Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'reconciliationController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.roncoo.pay.reconciliation.service.RpAccountCheckTransactionService com.roncoo.pay.controller.reconciliation.ReconciliationController.rpAccountCheckTransactionService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpAccountCheckTransactionService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.roncoo.pay.trade.service.RpTradeReconciliationService com.roncoo.pay.reconciliation.service.impl.RpAccountCheckTransactionServiceImpl.rpTradeReconciliationService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpTradeReconciliationService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.roncoo.pay.notify.service.RpNotifyService com.roncoo.pay.trade.service.impl.RpTradeReconciliationServiceImpl.rpNotifyService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpNotifyService': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jmsTemplate' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'connectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'pooledConnectionFactory' while setting bean property 'targetConnectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pooledConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'targetConnectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'targetConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'brokerURL' threw exception; nested exception is java.lang.IllegalArgumentException: Invalid broker URI: tcp://###:61616
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:288)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1116)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:628)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5077)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5591)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1836)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:618)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:565)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401)
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:361)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.roncoo.pay.reconciliation.service.RpAccountCheckTransactionService com.roncoo.pay.controller.reconciliation.ReconciliationController.rpAccountCheckTransactionService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpAccountCheckTransactionService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.roncoo.pay.trade.service.RpTradeReconciliationService com.roncoo.pay.reconciliation.service.impl.RpAccountCheckTransactionServiceImpl.rpTradeReconciliationService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpTradeReconciliationService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.roncoo.pay.notify.service.RpNotifyService com.roncoo.pay.trade.service.impl.RpTradeReconciliationServiceImpl.rpNotifyService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpNotifyService': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jmsTemplate' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'connectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'pooledConnectionFactory' while setting bean property 'targetConnectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pooledConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'targetConnectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'targetConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'brokerURL' threw exception; nested exception is java.lang.IllegalArgumentException: Invalid broker URI: tcp://###:61616
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:514)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285)
... 58 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpAccountCheckTransactionService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.roncoo.pay.trade.service.RpTradeReconciliationService com.roncoo.pay.reconciliation.service.impl.RpAccountCheckTransactionServiceImpl.rpTradeReconciliationService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpTradeReconciliationService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.roncoo.pay.notify.service.RpNotifyService com.roncoo.pay.trade.service.impl.RpTradeReconciliationServiceImpl.rpNotifyService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpNotifyService': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jmsTemplate' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'connectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'pooledConnectionFactory' while setting bean property 'targetConnectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pooledConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'targetConnectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'targetConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'brokerURL' threw exception; nested exception is java.lang.IllegalArgumentException: Invalid broker URI: tcp://###:61616
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:288)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1116)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:912)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:855)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:770)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:486)
... 60 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.roncoo.pay.trade.service.RpTradeReconciliationService com.roncoo.pay.reconciliation.service.impl.RpAccountCheckTransactionServiceImpl.rpTradeReconciliationService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpTradeReconciliationService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.roncoo.pay.notify.service.RpNotifyService com.roncoo.pay.trade.service.impl.RpTradeReconciliationServiceImpl.rpNotifyService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpNotifyService': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jmsTemplate' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'connectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'pooledConnectionFactory' while setting bean property 'targetConnectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pooledConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'targetConnectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'targetConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'brokerURL' threw exception; nested exception is java.lang.IllegalArgumentException: Invalid broker URI: tcp://###:61616
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:514)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285)
... 71 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpTradeReconciliationService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.roncoo.pay.notify.service.RpNotifyService com.roncoo.pay.trade.service.impl.RpTradeReconciliationServiceImpl.rpNotifyService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpNotifyService': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jmsTemplate' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'connectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'pooledConnectionFactory' while setting bean property 'targetConnectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pooledConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'targetConnectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'targetConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'brokerURL' threw exception; nested exception is java.lang.IllegalArgumentException: Invalid broker URI: tcp://###:61616
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:288)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1116)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:912)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:855)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:770)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:486)
... 73 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.roncoo.pay.notify.service.RpNotifyService com.roncoo.pay.trade.service.impl.RpTradeReconciliationServiceImpl.rpNotifyService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpNotifyService': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jmsTemplate' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'connectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'pooledConnectionFactory' while setting bean property 'targetConnectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pooledConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'targetConnectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'targetConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'brokerURL' threw exception; nested exception is java.lang.IllegalArgumentException: Invalid broker URI: tcp://###:61616
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:514)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285)
... 84 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rpNotifyService': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jmsTemplate' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'connectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'pooledConnectionFactory' while setting bean property 'targetConnectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pooledConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'targetConnectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'targetConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'brokerURL' threw exception; nested exception is java.lang.IllegalArgumentException: Invalid broker URI: tcp://###:61616
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:306)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1116)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:912)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:855)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:770)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:486)
... 86 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jmsTemplate' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'connectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'pooledConnectionFactory' while setting bean property 'targetConnectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pooledConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'targetConnectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'targetConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'brokerURL' threw exception; nested exception is java.lang.IllegalArgumentException: Invalid broker URI: tcp://###:61616
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1387)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1128)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:442)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:416)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:550)
at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:150)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:303)
... 97 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'pooledConnectionFactory' while setting bean property 'targetConnectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pooledConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'targetConnectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'targetConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'brokerURL' threw exception; nested exception is java.lang.IllegalArgumentException: Invalid broker URI: tcp://###:61616
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1387)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1128)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323)
... 112 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pooledConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Cannot resolve reference to bean 'targetConnectionFactory' while setting bean property 'connectionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'targetConnectionFactory' defined in class path resource [spring/spring-activemq.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'brokerURL' threw exception; nested exception is java.lang.IllegalArgumentException: Invalid broker URI: tcp://###:61616
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1387)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1128)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323)
... 122 more解决方案
经过上述异常栈描述，很明显就是被手动关闭SqlSessionTemplate，在这里很明显就不是人为手动关闭的，那就意味着框架帮我们关闭的sqlSessionTemplate了。再查看SqlSessionTempate的源码
/**
* {@inheritDoc}
*/
@Override
public void close() {
throw new UnsupportedOperationException("Manual close is not allowed over a Spring managed SqlSession");
}
SqlSessionTemplate的close()方法是会抛异常的，因为它不允许直接调用该方法进行关闭，而是每次执行事务的时候自动关闭。
/**
* Proxy needed to route MyBatis method calls to the proper SqlSession got
* from Spring's Transaction Manager
* It also unwraps exceptions thrown by {@code Method#invoke(Object, Object...)} to
* pass a {@code PersistenceException} to the {@code PersistenceExceptionTranslator}.
*/
private class SqlSessionInterceptor implements InvocationHandler {
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
SqlSession sqlSession = getSqlSession(
SqlSessionTemplate.this.sqlSessionFactory,
SqlSessionTemplate.this.executorType,
SqlSessionTemplate.this.exceptionTranslator);
try {
Object result = method.invoke(sqlSession, args);
if (!isSqlSessionTransactional(sqlSession, SqlSessionTemplate.this.sqlSessionFactory)) {
// force commit even on non-dirty sessions because some databases require
// a commit/rollback before calling close()
sqlSession.commit(true);
}
return result;
} catch (Throwable t) {
Throwable unwrapped = unwrapThrowable(t);
if (SqlSessionTemplate.this.exceptionTranslator != null && unwrapped instanceof PersistenceException) {
// release the connection to avoid a deadlock if the translator is no loaded. See issue #22
closeSqlSession(sqlSession, SqlSessionTemplate.this.sqlSessionFactory);
sqlSession = null;
Throwable translated = SqlSessionTemplate.this.exceptionTranslator.translateExceptionIfPossible((PersistenceException) unwrapped);
if (translated != null) {
unwrapped = translated;
}
}
throw unwrapped;
} finally {
if (sqlSession != null) {
closeSqlSession(sqlSession, SqlSessionTemplate.this.sqlSessionFactory);
}
}
}
}
上面可以看到，每次调用invoke方法，都会自动关闭session。
因为Mybatis与spring集成，实例是交给Spring去管理的，这时候被触发关闭，应该是跟Spring容器初始化失败有关，往前排查，发现了一个异常：
Caused by: org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'brokerURL' threw exception; nested exception is java.lang.IllegalArgumentException: Invalid broker URI: tcp://###:61616
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:101)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:57)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1420)
... 140 more从上面异常可以看到，是由于一个配置Invalid broker URI: tcp://###:61616 错误导致Spring容器初始化失败触发Spring调用了DisposableBeanAdapter的destroy方法引起的，后来只需要把配置改好，就可以正常启动了。
大部分出现该问题，都是由于其他异常引起的，首先排查是否存在其他异常或者其他Bean加载失败了，如果不想再出现该异常，想永久屏蔽该异常，只需要把scope="prototype"添加上即可。原因是spring的bean默认是单例，现在改为scope="prototype"表示每次调用都创建一个独立的SqlSessionTemplate实例，这样子有某个类加载失败，也不会影响这次调用。
<!-- SqlSession模板类实例 -->
<bean id="sessionTemplate" class="org.mybatis.spring.SqlSessionTemplate"
destroy-method="close" scope="prototype">
<constructor-arg index="0" ref="sqlSessionFactory" />
</bean>异常处理 | manual close is not allowed over a Spring managed SqlSession的更多相关文章
- 异常：java.lang.UnsupportedOperationException: Manual close is not allowed over a Spring managed SqlSession
使用mybatis-3.2.2.jar + mybatis-spring-1.2.0.jar集成时,报以下异常: 15:42:48.538 [Thread-1] DEBUG o.s.b.f.s.Dis ...
- Manual close is not allowed over a Spring managed SqlSession（转）
最近用junit测试spring项目的时候,报错: Manual close is not allowed over a Spring managed SqlSession 意思是不允许手动关闭spr ...
- java.lang.UnsupportedOperationException: Manual close is not allowed over a Spring managed SqlSession
java.lang.UnsupportedOperationException: Manual close is not allowed over a Spring managed SqlSessio ...
- 测试类异常Manual close is not allowed over a Spring managed SqlSession
在用Spring 和mybatis整合的 写测试类的时候报出解决办法:在全局配置文件 class="org.mybatis.spring.SqlSessionTemplate" ...
- Spring3 整合MyBatis3 配置多数据源 动态选择SqlSessionFactory
一.摘要 上两篇文章分别介绍了Spring3.3 整合 Hibernate3.MyBatis3.2 配置多数据源/动态切换数据源 方法 和 Spring3 整合Hibernate3.5 动态切换Ses ...
- spring与mybatis，strut2整合连接sqlserver不的不说的那点事儿
今天在通过spring与mybatis整合中,想连接下公司用的sqlserver数据库,结果使用Junit测发现没连上,于是就有了下面的问题: 准备工作都已经做好了 web中spring的监听配置了 ...
- Spring + Mybatis 项目实现动态切换数据源
项目背景:项目开发中数据库使用了读写分离,所有查询语句走从库,除此之外走主库. 最简单的办法其实就是建两个包,把之前数据源那一套配置copy一份,指向另外的包,但是这样扩展很有限,所有采用下面的办法. ...
- spring+springmvc+mybatis+oracle+atomikos+jta实现多数据源事务管理
---恢复内容开始--- 在做项目过程中,遇到了需要一个项目中访问两个数据库的情况,发现使用常规的spring管理事务,导致事务不能正常回滚,因此,采用了jta+atomikos的分布式数据源方式 ...
- mybatis源码学习--spring+mybatis注解方式为什么mybatis的dao接口不需要实现类
相信大家在刚开始学习mybatis注解方式,或者spring+mybatis注解方式的时候,一定会有一个疑问,为什么mybatis的dao接口只需要一个接口,不需要实现类,就可以正常使用,笔者最开始的 ...
随机推荐
- [vsCode实践] 实践记录
[vsCode实践] 实践记录 版权2019.5.1更新 Q1:代码中涉及到操作本地文件时,相对路径总是不对 操作本地文件时,路径方式有两种 相对路径 例如:代码文件所在路径/Users/tp0829 ...
- 边框，元素居中，盒子模型，margin,display,overflow,textarea,float,浮动停止条件，清除浮动影响，margin-top的bug，清除默认样式
边框 solid实线 dotted虚线 dashed点线 盒子在页面中实际的宽高都是5部分组成 宽=borderleft+paddingleft+width+paddingright+borderri ...
- 「洛谷P1233」木棍加工 解题报告
P1233 木棍加工 题目描述 一堆木头棍子共有n根,每根棍子的长度和宽度都是已知的.棍子可以被一台机器一个接一个地加工.机器处理一根棍子之前需要准备时间.准备时间是这样定义的: 第一根棍子的准备时间 ...
- Java网络编程——UDP聊天程序
UDP简介 UDP协议的全称是用户数据报,在网络中它与TCP协议一样用于处理数据报.在OSI模型中,UDP位于第四层--传输层,处于IP协议额上一层.UDP有不提供数据报分组.组装以及不能对数据报排序 ...
- python I/O编程
1.文件读写 使用open打开文件,f=open('/user/test.txt','r'),r表示可读 如果文件不存在,则抛出IOError 文件打开,则用read()方法进行读取 最后关闭用clo ...
- [MariaDB]MHA高可用部署-实验
目录 一.简介 1.1MHA角色 二.MHA的工具 三.MHA部署过程 3.1.1 配置 3.1.2 环境规划 3.1.3 配置一主多从 3.2 MHA配置 3.2.1 master权限授予 3.2. ...
- AcWing 247. 亚特兰蒂斯 | 扫描线
传送门 题目描述 有几个古希腊书籍中包含了对传说中的亚特兰蒂斯岛的描述. 其中一些甚至包括岛屿部分地图. 但不幸的是,这些地图描述了亚特兰蒂斯的不同区域. 您的朋友Bill必须知道地图的总面积. 你自 ...
- doc_values VS stored field
doc_values 按列存储,按docId排序,在query阶段使用,直接根据docId获取具体field的value,用来排序,聚合等. stored field按文档存储,按docId排序,一条 ...
- MySQL 基础 SQL 操作
MySQL 用户 --登录 mysql -u<用户名> -p[密码] --修改密码 mysqladmin -u<用户名> -p[密码] password <new_pas ...
- 浅析PHP类的自动加载和命名空间
php是使用require(require_once)和include(include_once)关键字加载类文件.但是在实际的开发工程中我们基本上不会去使用这些关键字去加载类. 因为这样做会使得代码 ...