请教 spring 事务

Question

<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean
class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" />
<aop:config>
<aop:pointcut id="servicesPointcut"
expression="execution(*  com.*.service.*.*(..))" />
<aop:advisor advice-ref="txAdvice"
pointcut-ref="servicesPointcut" />
</aop:config>
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="insert*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="get*" read-only="true" />
</tx:attributes>
</tx:advice>   想问一下spring 事务在什么时候提交在好?

Answer 1

  在好能给我多讲讲Spring 一些东西 
   学习spring 敢觉无处下手觉这些东西都似懂非懂