<!-- 配置事務管理器 -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
		p:dataSource-ref="dataSource" />
		
	<!-- 通過AOP配置提供事務增強，讓service包下所有Bean的所有方法擁有事務 -->
	<aop:config proxy-target-class="true">
		<aop:pointcut id="serviceMethod"
			expression="(execution(* chapter2.service..*(..))) and (@annotation(org.springframework.transaction.annotation.Transactional))" />
		<aop:advisor pointcut-ref="serviceMethod" advice-ref="txAdvice" />
	</aop:config>
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<tx:method name="*" />
		</tx:attributes>
	</tx:advice>