做了一个整合的小例子，开始没有添加代理事务运行正常。后来我把代理事务加上，运行时报错了：
org.springframework.orm.hibernate3.HibernateSystemException: Session is closed; nested exception is org.hibernate.SessionException: Session is closed
at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:679)
at org.springframework.orm.hibernate3.HibernateTransactionManager.convertHibernateAccessException(HibernateTransactionManager.java:793)
at org.springframework.orm.hibernate3.HibernateTransactionManager.doRollback
.......
.......
Caused by: org.hibernate.SessionException: Session is closed
at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:139)
at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:217)
at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:196)
at org.springframework.orm.hibernate3.HibernateTransactionManager.doRollback(HibernateTransactionManager.java:676)
... 74 more
看错误提示说session关闭了，好我想到我的方法里是把session关闭了，于是注释掉，在运行，没有错，但是没有显示正确结果。
applicationContext.xml：
- XML code
<?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:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="com.mysql.jdbc.Driver"> </property> <property name="url" value="jdbc:mysql://127.0.0.1:3306"></property> <property name="username" value="root"></property> <property name="password" value="lm"></property> <property name="maxActive" value="100"></property> <property name="maxIdle" value="30"></property> <property name="maxWait" value="500"></property> <property name="defaultAutoCommit" value="true"></property> </bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="configLocation" value="classpath:hibernate.cfg.xml"> </property> <property name="dataSource" ref="dataSource"></property> </bean> <bean id="tm" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <bean id="studentDAO" class="com.lm.Impdao.StudentDAO"> <property name="sessionFactory"> <ref bean="sessionFactory" /> </property> </bean> <bean id="stuBiz" class="com.lm.Impbiz.StudentBiz"> <property name="stuDAO" ref="studentDAO"></property> </bean> <bean id="transactionProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean" abstract="true"> <property name="transactionManager" ref="tm"></property> <property name="transactionAttributes"> <props> <prop key="*">PROPAGATION_REQUIRED,readOnly</prop> </props> </property> </bean> <bean id="stuBizProxy" parent="transactionProxy"> <property name="target" ref="stuBiz"></property> </bean> <bean id="userAction" class="com.lm.struts2.userAction" scope="prototype"> <property name="stuBiz" ref="stuBizProxy"></property> </bean> </beans>