[Spring]事务管理--实例3-SpringAOP注解配置

Spring事务管理--实例3-SpringAOP注解配置

[TOC]

注意 MyISAM不支持Spring的事务管理，需要使用InnoDB

1. Spring配置文件

2. Service层代码

@Transactional(isolation = Isolation.REPEATABLE_READ, propagation = Propagation.REQUIRED, readOnly = true)
public class MoneyServiceImpl implements MoneyService {

    private MoneyDao moneyDao;

    public MoneyDao getMoneyDao() {
        return moneyDao;
    }

    public void setMoneyDao(MoneyDao moneyDao) {
        this.moneyDao = moneyDao;
    }
//    某些方法织入的 事务 有差异，可以在方法上再次注解
    @Override
    @Transactional(isolation = Isolation.REPEATABLE_READ, 
                   propagation = Propagation.REQUIRED, readOnly = false)
    public void transfer(Integer from, Integer to, Double money) {
        moneyDao.subMoney(from, money);
        //int a = 1 / 0; // 发生 by zero可以直接回滚
        moneyDao.addMoney(to, money);
    }

}

3.Junit测试

public class SpringTransactionTest {

    @SuppressWarnings("resource")
    @Test
    public void fun1() {
        ApplicationContext context = new 
          ClassPathXmlApplicationContext("applicationContext.xml");
        
        MoneyService moneyService = (MoneyService) context.getBean("moneyService");
        moneyService.transfer(2, 1, 200d);
    }
}