mybatis事务配置

今天弄mybatis-pring的事务遇到一个问题，有问题的spring-mybatis.xml配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd"> <!-- 自动扫描 -->
<context:component-scan base-package="com.cn.wolf"/>

<!-- 引入配置文件 -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:jdbc.properties"/>
</bean>

<!--数据源配置-->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${driver}"/>
<property name="url" value="${url}"/>
<property name="username" value="${username}"/>
<property name="password" value="${password}"/>
<!-- 初始化连接大小 -->
<property name="initialSize" value="${initialSize}"></property>
<!-- 连接池最大数量 -->
<property name="maxActive" value="${maxActive}"></property>
<!-- 连接池最大空闲 -->
<property name="maxIdle" value="${maxIdle}"></property>
<!-- 连接池最小空闲 -->
<property name="minIdle" value="${minIdle}"></property>
<!-- 获取连接最大等待时间 -->
<property name="maxWait" value="${maxWait}"></property>
</bean>

<!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property  name="configLocation"  value="classpath:SqlMapConfig.xml"/>
<!-- 自动扫描mapping.xml文件 -->
<!--<property name="mapperLocations" value="classpath:com/cn/wolf/mapping/*.mapper.xml"></property>-->
<!--类的别名-->
<property name="typeAliasesPackage" value="com.cn.wolf.mapping"/>
</bean>

<!-- DAO接口所在包名，Spring会自动查找其下的类 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.cn.wolf.dao"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>

<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg index="0" ref="sqlSessionFactory"/>
<!--以下是批处理配置,但是单个insert时返回是一个负值-2147482646-->
<!--<constructor-arg index="1" value="BATCH"/>-->
</bean>

<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="delete*" propagation="REQUIRED" read-only="false"
rollback-for="java.lang.Exception" no-rollback-for="java.lang.RuntimeException"/>
<tx:method name="insert*" propagation="REQUIRED" read-only="false"
rollback-for="java.lang.RuntimeException" />
<tx:method name="update*" propagation="REQUIRED" read-only="false"
rollback-for="java.lang.Exception" />
<tx:method name="find*" propagation="SUPPORTS"/>
<tx:method name="get*" propagation="SUPPORTS"/>
<tx:method name="select*" propagation="SUPPORTS"/>
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut id="pc" expression="execution(* com.cn.wolf.service.*.*(..))" /> <!--把事务控制在Service层-->
<aop:advisor pointcut-ref="pc" advice-ref="txAdvice" />
</aop:config>

</beans>

有问题的spring-mvc.xml配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 注解扫描包 -->
<context:component-scan base-package="com.cn.wolf" />

<!-- 开启注解 -->
<mvc:annotation-driven />

<!-- 静态资源的访问 -->
<mvc:resources location="/static/" mapping="/static/**" />

<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping">
</bean>
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
<property name="messageConverters">
<list>
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" />
</list>
</property>
</bean>

<!-- 定义视图解析器 -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="WEB-INF/jsp"></property>
<property name="contentType" value="text/html; charset=UTF-8" />
<property name="suffix" value=".jsp"></property>
</bean>

<!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 默认编码 -->
<property name="defaultEncoding" value="utf-8" />
<!-- 文件大小最大值 -->
<property name="maxUploadSize" value="10485760000" />
<!-- 内存中的最大值 -->
<property name="maxInMemorySize" value="40960" />
</bean>

</beans>

在service实现层有一个saveUser的方法如下：

public int saveUser(User user){
userDao.saveUser(user);
userDao.saveUser(user);
return 1;
}

以上测试结果：第一个user保存成功，第二个user保存时主键冲突保存失败，但是第一个没有回滚（如果事务起作用会回滚的），为什么事务不起作用呢？？？经过许久的努力终于找到原因了（如果以下原因不对请不要喷！）。当加载spring-mvc.xml时，通过扫描com.cn.wolf包注入了一个没有事务的service，而pring的aop是在运行时拦截注入的，所以事务在此不起作用。

根据以上分析我最后对以上两个文件做了些许修改，问题就解决了，具体spring-mybatis.xml配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd"> 
<!-- 自动扫描 -->
<context:component-scan base-package="com.cn.wolf.*">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>

<!-- 引入配置文件 -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:jdbc.properties"/>
</bean>

<!--数据源配置-->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${driver}"/>
<property name="url" value="${url}"/>
<property name="username" value="${username}"/>
<property name="password" value="${password}"/>
<!-- 初始化连接大小 -->
<property name="initialSize" value="${initialSize}"></property>
<!-- 连接池最大数量 -->
<property name="maxActive" value="${maxActive}"></property>
<!-- 连接池最大空闲 -->
<property name="maxIdle" value="${maxIdle}"></property>
<!-- 连接池最小空闲 -->
<property name="minIdle" value="${minIdle}"></property>
<!-- 获取连接最大等待时间 -->
<property name="maxWait" value="${maxWait}"></property>
</bean>

<!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property  name="configLocation"  value="classpath:SqlMapConfig.xml"/>
<!-- 自动扫描mapping.xml文件 -->
<!--<property name="mapperLocations" value="classpath:com/cn/wolf/mapping/*.mapper.xml"></property>-->
<!--类的别名-->
<property name="typeAliasesPackage" value="com.cn.wolf.mapping"/>
</bean>

<!-- DAO接口所在包名，Spring会自动查找其下的类 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.cn.wolf"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>

<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<!--<bean id="sqlSessionManager" class="org.apache.ibatis.session.SqlSessionManager">-->
<constructor-arg index="0" ref="sqlSessionFactory"/>
<!--以下是批处理配置,但是单个insert时返回是一个负值-2147482646-->
<!--<constructor-arg index="1" value="BATCH"/>-->
</bean>

<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>

<!--使用注解事务-->
<!--<tx:annotation-driven transaction-manager="transactionManager" />-->

<tx:advice id="txAdvice" transaction-manager="transactionManager">
<!--<tx:attributes>
<tx:method name="delete*" propagation="REQUIRED" read-only="false"
rollback-for="java.lang.Exception" no-rollback-for="java.lang.RuntimeException"/>
<tx:method name="insert*" propagation="REQUIRED" read-only="false"
rollback-for="java.lang.Exception" />
<tx:method name="save*" propagation="REQUIRED" read-only="false"
rollback-for="Throwable" />
<tx:method name="update*" propagation="REQUIRED" read-only="false"
rollback-for="java.lang.Exception" />
<tx:method name="find*" propagation="SUPPORTS"/>
<tx:method name="get*" propagation="SUPPORTS"/>
<tx:method name="select*" propagation="SUPPORTS"/>
</tx:attributes>-->
<tx:attributes>
<tx:method name="*" propagation="REQUIRED" rollback-for="Throwable"/>
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut id="pc" expression="execution(* com.cn.wolf.service.*.*(..))" /> <!--把事务控制在Service层-->
<aop:advisor pointcut-ref="pc" advice-ref="txAdvice" />
</aop:config>

</beans>

pring-mvc.xml配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 开启注解 -->
<!--<mvc:annotation-driven />-->
<context:annotation-config />

<!-- 设置使用注解的类所在的jar包，这里必须排除扫描service层的组件 -->
<context:component-scan base-package="com.cn.wolf.*">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service"/>
</context:component-scan>

<!-- 静态资源的访问 -->
<mvc:resources location="/static/" mapping="/static/**" />

<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping">
</bean>
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
<property name="messageConverters">
<list>
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" />
</list>
</property>
</bean>

<!-- 定义视图解析器 -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp"></property>
<property name="contentType" value="text/html; charset=UTF-8" />
<property name="suffix" value=".jsp"></property>
</bean>

<!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 默认编码 -->
<property name="defaultEncoding" value="utf-8" />
<!-- 文件大小最大值 -->
<property name="maxUploadSize" value="10485760000" />
<!-- 内存中的最大值 -->
<property name="maxInMemorySize" value="40960" />
</bean>

</beans>

OK了，我的事务问题解决了，如果对你有用就带走，如果没有用别喷哈。

最后附上该列子的代码：https://github.com/BinWolf/mybatis-springmvc