SSH声明式事物管理不起作用为什么

在线求教
各位前辈帮我看一下我的声明式事物管理那里出错了，为什么不起作用




com/transaction/pojo/Role.hbm.xml

    </list> 
    </property>

    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">
                org.hibernate.dialect.MySQLDialect 
            </prop>
            <prop key="hibernate.show_sql">true</prop>
            <prop key="hibernate.current_session_context_class">thread</prop> 
        </props>
    </property>
   </bean>
   <bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
    <property name="sessionFactory" ref="sessionFactory" />
   </bean>

  <aop:config>
    <aop:pointcut id="bussinessService"
        expression="execution(public * com.transaction.service..*.*(..))" />
    <aop:advisor pointcut-ref="bussinessService"
        advice-ref="txAdvice" />
</aop:config>

<tx:advice id="txAdvice" transaction-manager="txManager">
    <tx:attributes>
        <tx:method name="getUser" read-only="true" />
        <tx:method name="save*" propagation="REQUIRED"/>
    </tx:attributes>
</tx:advice>

Service所在包路径package com.transaction.service.impl.TestServiceImpl

com.transaction.service..*.*(..)
service后面多一个点。