1.基于xml的实现

1.1先创建一个表account

1.2创建类，这个关于数据库的操作，前面的博客已经配置好了；

public class OrderDao {    public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {        this.jdbcTemplate = jdbcTemplate;    }    private JdbcTemplate jdbcTemplate;    public void lessmoney(){        String sql="update account set salary=salary-? where username=?";        jdbcTemplate.update(sql,1000,"zhangsan");    }    public void moremoney(){        String sql="update account set salary=salary+? where username=?";        jdbcTemplate.update(sql,1000,"lisi");    }}

public class OrderService {    public void setOrderDao(OrderDao orderDao) {        this.orderDao = orderDao;    }    private OrderDao orderDao;    public void accountchange(){        orderDao.lessmoney();        //制造个异常，事务不能进行，进行回滚        int i=100/0;        orderDao.moremoney();    }}

1.3xml配置

1.3xml测试

public class testDemo {    @Test    public void testTransaction(){        ApplicationContext context=new ClassPathXmlApplicationContext("bean5.xml");        OrderService orderService= (OrderService) context.getBean("orderService");        orderService.accountchange();    }}

1.4结果:报除数不能为0的错误，表中的数据未变化

2基于注解的方式

2.1对类进行注解

//第三步开启注解@Transactionalpublic class OrderService {    public void setOrderDao(OrderDao orderDao) {        this.orderDao = orderDao;    }    private OrderDao orderDao;    public void accountchange(){        orderDao.lessmoney();        //制造个异常，事务不能进行，进行回滚        int i=100/0;        orderDao.moremoney();    }}