springmvc+mybatis事务回滚

spring-mybatis.xml中 配置了

<!-- 拦截器方式配置事物 -->
	<tx:advice id="transactionAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<tx:method name="add*" propagation="REQUIRED" />
			<tx:method name="append*" propagation="REQUIRED" />
			<tx:method name="insert*" propagation="REQUIRED" />
			<tx:method name="save*" propagation="REQUIRED" />
			<tx:method name="update*" propagation="REQUIRED" />
			<tx:method name="modify*" propagation="REQUIRED" />
			<tx:method name="edit*" propagation="REQUIRED" />
			<tx:method name="delete*" propagation="REQUIRED" />
			<tx:method name="remove*" propagation="REQUIRED" />
			<tx:method name="repair" propagation="REQUIRED" />
			<tx:method name="delAndRepair" propagation="REQUIRED" />
			<tx:method name="get*" propagation="SUPPORTS" />
			<tx:method name="find*" propagation="SUPPORTS" />
			<tx:method name="load*" propagation="SUPPORTS" />
			<tx:method name="search*" propagation="SUPPORTS" />
			<tx:method name="datagrid*" propagation="SUPPORTS" />

			<tx:method name="*" propagation="SUPPORTS" />
		</tx:attributes>
	</tx:advice>

　　spring-mvc.xml中配置了

<!-- 自动扫描controller包下的所有类，使其认为spring mvc的控制器 -->
	<context:component-scan base-package="com.ms.controller" />

　　开启了自动扫描,发现service层并不能回滚。

　　在spring-mvc.xml添加

<context:component-scan base-package="com.njzaizao">  
		<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service" />  
	</context:component-scan>  

　　此为：扫描所有的controller 但是不扫描service

　　这样service层就能自动开启事务了

　　但是这样有个问题，service层不能使用try catch

　　如果必须在service层捕捉异常的话可使用 注解 @Transactional