spring整合mybatis的事物管理配置

Posted 2020-10-27 no-npe

一、基本配置

<?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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
     http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">



    <!-- 连接池配置 -->
    <bean id="hikariConfig" class="com.zaxxer.hikari.HikariConfig">
        <property name="poolName" value="springHikariCP" />
        <property name="connectionTestQuery" value="SELECT 1" />
        <property name="dataSourceClassName" value="${jdbc.driverClassName}" />
        <property name="dataSourceProperties">
            <props>
                <prop key="url">${jdbc.url}</prop>
                <prop key="user">${jdbc.username}</prop>
                <prop key="password">${jdbc.password}</prop>
                <prop key="cachePrepStmts">true</prop>
                <prop key="prepStmtCacheSize">250</prop>
                <prop key="prepStmtCacheSqlLimit">2048</prop>
            </props>
        </property>
        <!-- 控制自动提交行为 default：true -->
        <property name="autoCommit" value="true"/>
        <!--连接池获取的连接是否只读 default:false-->
        <property name="readOnly" value="false"/>
        <!--最大连接超时时间 default：30秒-->
        <property name="connectionTimeout" value="30000"/>
        <!--最大空闲超时时间 default：10分钟   -->
        <property name="idleTimeout" value="600000"/>
        <!--连接池中一个连接的最大生命周期 default：30分钟-->
        <property name="maxLifetime" value="1800000 "/>
    </bean>
    <bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
        <constructor-arg ref="hikariConfig" />
    </bean>

    <!-- define the SqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:META-INF/mybatis/mybatis-config.xml"/>
        <property name="mapperLocations" value="classpath:META-INF/mybatis/mapper/*.xml"/>
    </bean>


    <!-- scan for mappers and let them be autowired -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="annotationClass" value="org.springframework.stereotype.Repository"/>
        <property name="basePackage" value="com.geenk.market.dal"/>
    </bean>

    <!-- 声明编码方式事务 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <bean id="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate">
        <property name="transactionManager" ref="transactionManager"/>
        <!--ISOLATION_DEFAULT 表示由使用的数据库决定  -->
        <property name="isolationLevelName" value="ISOLATION_DEFAULT"/>
        <property name="propagationBehaviorName" value="PROPAGATION_REQUIRED"/>
    </bean>
    <!-- 启动使用注解实现声明式事务管理的支持-->
    <tx:annotation-driven transaction-manager="transactionManager" />

</beans>

　　该配置方案是最基本的事物配置方案，MyBatis自动参与到spring事务管理中，无需额外配置，只要org.mybatis.spring.SqlSessionFactoryBean引用的数据源与DataSourceTransactionManager引用的数据源一致即可，否则事务管理会不起作用。但是缺点是事物的传播行为都是一致的，不能精确的为特定的方法配置事物的传播行为。

二、增强配置

<tx:advice id="transactionAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="add*" 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="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>
    <aop:config>
        <aop:pointcut id="transactionPointcut" expression="execution(* com.geenk.market.dal..*Impl.*(..))" />
        <aop:advisor pointcut-ref="transactionPointcut" advice-ref="transactionAdvice" />
    </aop:config>

　　改配置方案可以精确事物到特定方法，对数据库有改动的操作如新增、修改、和删除。以事物方式来进行，对数据库无改动的操作则可以以非事物的方式来进行。

三、基于注解配置

<!-- 配置事务管理器-->
 <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
     <property name="dataSource" ref="dataSource"></property>
</bean>
<tx:annotation-driven transaction-manager="txManager"/>

　　然后只要在要使用的类或方法上加上注解@Transactional便可。