spring hibernate 事务不回滚 !解决方法

<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">        <property name="sessionFactory">            <ref bean="sessionFactory"/>        </property>    </bean>    <!-- 事务拦截器 -->    <bean id="transactionInterceptor" class="org.springframework.transaction.interceptor.TransactionInterceptor">         <property name="transactionManager">             <ref bean="transactionManager" />         </property>          <!-- 配置事务属性 -->         <property name="transactionAttributes">            <props>               <prop key="delete*">PROPAGATION_REQUIRED</prop>               <prop key="add*">PROPAGATION_REQUIRED</prop>               <prop key="update*">PROPAGATION_REQUIRED</prop>               <prop key="save*">PROPAGATION_REQUIRED</prop>               <prop key="find*">PROPAGATION_REQUIRED,readOnly</prop>              <prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>              <prop key="set*">PROPAGATION_REQUIRED</prop>           </props>        </property>      </bean>      <!-- 自动代理 -->     <bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">         <property name="beanNames">            <list>               <value>BizFlRecVouch</value>            </list>         </property>         <property name="interceptorNames">            <list>               <value>transactionInterceptor</value>            </list>         </property>      </bean><bean id="sessionFactory"        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">        <property name="dataSource">            <ref bean="dataSource"></ref>        </property>        <property name="hibernateProperties">            <props>                <prop key="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</prop>                <prop key="hibernate.show_sql">true</prop>                <!--自动生成表结构 <prop key="hibernate.hbm2ddl.auto">create</prop>-->                <!-- 是否在日志中输出的SQL 语句格式化成易读形式 -->                <prop key="hibernate.format_sql">true</prop>                 <!-- 是否显示统计形式，一般在测试阶段使用 -->                <prop key="hibernate.generate_statistics">true</prop>            </props>        </property>        <property name="mappingResources">            <list>                <value>com/flsoft/hgjlserver/module/Code.hbm.xml</value>                <value>com/flsoft/hgjlserver/module/Customer.hbm.xml</value>.........</list>        </property>    </bean><bean id="BizFlRecVouch" class="com.flsoft.hgjlserver.serverImpl.BizFlRecVouchImpl">                <property name="isyssetDao">            <ref bean="FlSysSetDAO"/>        </property>                <property name="itaskDao">            <ref bean="TaskDAO"/>        </property>    </bean>

public boolean test();