spring mvc mybatis will not be managed by Spring

项目运行时发现事务提交不完整，回滚时只能回滚一半。
系统配置

//servlet-context.xml
	<context:component-scan base-package="com.xx" >
	</context:component-scan>

//applicationContext.xml
	<context:component-scan base-package="com.xx" >
	</context:component-scan>

系统日志

12998 [http-bio-8080-exec-2] DEBUG org.mybatis.spring.SqlSessionUtils - Registering transaction synchronization for SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@425e24b5] 
13000 [http-bio-8080-exec-2] DEBUG o.m.s.t.SpringManagedTransaction - JDBC Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@5cdbf552] will not be managed by Spring

发现spring的事务不起作用。

参阅博客文章
http://jinnianshilongnian.iteye.com/blog/1850432

发现事务范围配置面太大了，需修改配置，将spring dispatcher里只加载controller
且把base-package="com.xx“改为base-package="com.xx.**.controller"

//servlet-context.xml
	<context:component-scan base-package="com.xx.**.controller" >
		<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
		<context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
	</context:component-scan>

//applicationContext.xml
	<context:component-scan base-package="com.xx" >
		<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
		<context:exclude-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
	</context:component-scan>

37427 [http-bio-8080-exec-5] DEBUG org.mybatis.spring.SqlSessionUtils - Creating a new SqlSession 
37427 [http-bio-8080-exec-5] DEBUG org.mybatis.spring.SqlSessionUtils - Registering transaction synchronization for SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@eeffbdd] 
37427 [http-bio-8080-exec-5] DEBUG o.m.s.t.SpringManagedTransaction - JDBC Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@45415661] will be managed by Spring 
39216 [http-bio-8080-exec-5] DEBUG org.mybatis.spring.SqlSessionUtils - Transaction synchronization deregistering SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@eeffbdd] 
39216 [http-bio-8080-exec-5] DEBUG org.mybatis.spring.SqlSessionUtils - Transaction synchronization closing SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@eeffbdd]