我有一個在測試中工作正常的系統,但現在我已經將它們移動到生產服務器並且準備好引發交換機,即時通訊有問題。在Hibernate/Spring Transactions中優雅地處理陳舊的數據庫連接
如果應用程序閒置大約15分鐘,則春季事務服務中的數據庫連接將下降。這涉及到這種情況發生後,該應用程序的第一人與此
org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Cannot open connection
org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:596)
org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371)
org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:335)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:621)
parity.persistence.DataAccess$$EnhancerByCGLIB$$921ef13.find(<generated>)
parity.model.Configuration.getConfiguration(Configuration.java:84)
parity.model.Configuration.getSetting(Configuration.java:46)
parity.model.Configuration$$FastClassByCGLIB$$8355c3d0.invoke(<generated>)
net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:617)
parity.model.Configuration$$EnhancerByCGLIB$$5e96e8b9.getSetting(<generated>)
parity.model.OnlineStatus.getSiteStatus(OnlineStatus.java:50)
parity.action.site.SiteStatusInterceptor.intercept(SiteStatusInterceptor.java:16)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:498)
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:434)
root cause
打招呼,如果你按F5鍵您的瀏覽器,它重新連接並運行良好。看起來春天正在按照第一個請求的要求進行一些工作,比如eek,我死了,在死亡的過程中,重新連接到數據庫。但我不知道。
我一直在尋找解決方法,但它看起來像除非我使用c3p0或weblogic每個人都是無能爲力。有沒有辦法來解決這個問題?這裏是我的配置文件
的hibernate.cfg.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
<property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
<property name="connection.autocommit">false</property>
<property name="show_sql">false</property>
<property name="use_sql_comments">false</property>
</session-factory>
</hibernate-configuration>
交易service.xml中:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<bean id="boardingSessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocations">
<list>
<value>classpath:hibernate/boarding-hibernate.cfg.xml</value>
<value>classpath:boarding-hibernate.cfg.xml</value>
</list>
</property>
<property name="configurationClass">
<value>org.hibernate.cfg.AnnotationConfiguration</value>
</property>
</bean>
<bean id="boardingTransactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="boardingSessionFactory" />
<qualifier value="boarding" />
</bean>
<tx:advice id="boardingTxAdvice" transaction-manager="boardingTransactionManager">
<tx:attributes>
<tx:method name="get*" read-only="true" />
<tx:method name="*" />
</tx:attributes>
</tx:advice>
</beans>
筆記,我的Hibernate使用2個文件,一個是處理全球API中設置,還有一個應用程序本身具有特定於應用程序的設置。爲了達到這個目的,我認爲全球性的就是最重要的。
我的印象是春季交易服務處理連接池,你告訴我,它實際上處理池的休眠嗎? – scphantm
閱讀Spring文檔的這一部分:http://static.springsource.org/spring/docs/3.1.x/spring-framework-reference/htmlsingle/spring-framework-reference.html#jdbc-datasource,以及這個。如果你沒有在Spring中使用連接池配置數據源,那麼LocalSessionFactoryBean將使用你在Hibernate配置文件中配置的內容,如LocalSessionFactoryBean javadoc中所述:http://static.springsource.org/spring/docs /3.1.x/javadoc-api/org/springframework/orm/hibernate3/LocalSessionFactoryBean.html –
呃,我真的希望我們在測試中發現它,而不是在我們的代碼鎖定之後。哦,至少實施c3p0並不是什麼大事。 – scphantm