Spring 事务配置

<bean id="transactionManager"
          class="org.springframework.orm.hibernate3.HibernateTransactionManager">
          <property name="sessionFactory">
              <ref bean="sessionFactory"/>
          </property>
    </bean>

<bean id="txProxyTemplate" abstract="true" 
class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"> 
    <property name="transactionManager">
        <ref bean="transactionManager"/>
    </property> 
    <property name="transactionAttributes"> 
        <props>
            <prop key="find*">PROPAGATION_REQUIRED, readOnly</prop> 
            <prop key="*">PROPAGATION_REQUIRED</prop> 
        </props> 
    </property> 
</bean> 

<bean id="userManager" parent="txProxyTemplate"> 
    <property name="target"> 
        <bean class="some.package.UserManagerImpl"> 
            <property name="userDAO"><ref bean="userDAO"/></property> 
        </bean> 
    </property> 
</bean> 

以后，如果增加新的Service/Manager，则XML配置的增量是这一段：

<bean id="someOtherManager" parent="txProxyTemplate"> 
    <property name="target"> 
        <bean class="some.package.someOtherManagerImpl"> 
        </bean> 
    </property> 
</bean>