Spring事务经典案例-银行转账
1.entity实体类
2.dao层
3.dao实现类
4.service层
5.serviceimpl层
6.大配置.xml
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<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <context:property-placeholder location="jdbc.properties.properties"/> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="${jdbc.driver}"></property> <property name="url" value="${jdbc.url}"></property> <property name="username" value="${jdbc.username}"></property> <property name="password" value="${jdbc.password}"></property> </bean> <!--.构建jdbcTemplate--> <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"> <property name="dataSource" ref="dataSource"></property> </bean> <bean id="TransferMoney" class="com.spring.dao.AddMoneyImpl"> <property name="jdbcTemplate" ref="jdbcTemplate"></property> </bean> <bean id="transferMoneyImpl" class="com.spring.service.TransferMoneyImpl"> <property name="dao" ref="TransferMoney"></property> </bean> <!--事务代理工厂Bean--> <bean id="transactionProxyFactoryBean" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"> <!--事务管理器--> <property name="transactionManager" ref="transactionManager"></property> <!--目标对象--> <property name="target" ref="transferMoneyImpl"></property> <!--设置方法--> <property name="transactionAttributes"> <props> <!--方法对应的隔离级别和传播行为--> <prop key="transfer">PROPAGATION_REQUIRED,ISOLATION_DEFAULT</prop> </props> </property> </bean> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <!--<!–配置Spring的事务管理器,默认在发生异常的情况下回滚,否则提交–> <!– 通知 –> <tx:advice transaction-manager="transactionManager" id="txAdvice"> <tx:attributes> <tx:method name="transferMoney" propagation="REQUIRED" isolation="READ_COMMITTED" /><!– transferMoney的事务隔离级别和传播行为 –> </tx:attributes> </tx:advice> <!– 切面 –> <aop:config> <aop:pointcut expression="execution(* com.spring.service.*.*(..))" id="myCut" /> <aop:advisor advice-ref="txAdvice" pointcut-ref="myCut" /> </aop:config>--> </beans>
7.jdbc.properties配置
8.测试类
结果:
控制台报:by zero
数据库里的数据没有改变!
完成!