8.基于注解的AOP控制事务

8.1.拷贝上一章代码

8.2.applicationContext.xml

<!-- 开启spring对注解事务的支持 -->
<tx:annotation-driven transaction-manager="transactionManager"/> 

8.3.service

@Service
@Transactional(readOnly=true,propagation= Propagation.SUPPORTS)
public class UserServiceImpl implements UserService {@Autowiredprivate UserMapper userMapper;/*** 转账* @param source* @param target* @param money*/@Override@Transactional(readOnly=false,propagation=Propagation.REQUIRED)public void updateUser(String source, String target, Float money) {userMapper.updateUserOfSub(source, money);int a = 6/0;userMapper.updateUserOfAdd(target, money);}
}

8.4.测试

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext.xml")//加载配置文件
public class ServiceTest {@Autowiredprivate UserService userService;/*** 转账业务*/@Testpublic void testUpdate(){userService.updateUser("张三丰","宋远桥",1F);}
}

• 事务回滚：