package com.hope.service.impl;import com.hope.dao.IAccountDao;import com.hope.domain.Account;import com.hope.service.IAccountService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import org.springframework.transaction.annotation.Propagation;import org.springframework.transaction.annotation.Transactional;/** * @author newcityman * @date 2019/11/20 - 16:45 */@Service("accountService")@Transactional(readOnly = true,propagation = Propagation.SUPPORTS)public class AccountServiceImpl implements IAccountService { @Autowired private IAccountDao accountDao; public Account findAccountById(Integer accountId) { return accountDao.findAccountById(accountId); } @Transactional(readOnly = false,propagation = Propagation.REQUIRED) public void transfer(String sourceName, String targetName, Float money) { Account source = accountDao.findAccountByName(sourceName); Account targe = accountDao.findAccountByName(targetName); source.setMoney(source.getMoney() - money); targe.setMoney(targe.getMoney() + money); accountDao.updateAccount(source);// int i = 1 / 0; accountDao.updateAccount(targe); }}
<?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: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/tx http://www.springframework.org/schema/tx/spring-tx.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"> <!--配置spring容器创建时要扫描的包--> <context:component-scan base-package="com.hope"></context:component-scan> <!--配置jdbcTemplate--> <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"> <property name="dataSource" ref="dataSource"></property> </bean> <!--数据源--> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver"/> <property name="url" value="jdbc:mysql://localhost:3306/easy"/> <property name="username" value="root"/> <property name="password" value="123"/> </bean> <!--spring中基于注解的声明式事务控制配置步骤 1、配置事务管理器 2、开启spring对注解事务的支持 3、在需要事务支持的地方使用@transactional --> <!--配置事务--> <!--配置事务管理器--> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property> </bean> <!--开启spring对注解事务的支持--> <tx:annotation-driven transaction-manager="transactionManager" ></tx:annotation-driven></beans>
