Update applicationContext-jdbc.xml

common/src/main/resources/applicationContext-jdbc.xml

@@ -55,6 +55,7 @@
 		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
 	</bean>
 
+	<!-- 事务管理器 -->
 	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
 		<property name="dataSource" ref="dataSource" />
 	</bean>
@@ -62,4 +63,4 @@
 	<!-- 启动注解事务 -->
 	<tx:annotation-driven transaction-manager="transactionManager"/>
 
-</beans>
+</beans>