springboot中开启事务管理

springboot中开启事务管理 1.在需要整体回滚的方法上面添加注解:@Transactional(这个注解可以用在控制层和业务层都是可以的)

@GetMapping("/toCheckout")
@Transactional
public String toCheckout(HttpSession session,
                         Model model) throws Exception {
    TUser user =(TUser) session.getAttribute(BookStoreConstants.USER_SESSION_KEY);
    Cart cart = (Cart)session.getAttribute(BookStoreConstants.CART_SESSION_KEY);
    TOrder tOrder = tOrderService.insertTOrder(cart, user);
    tOrderItemService.batchTOrderItems(cart,tOrder);
    Integer integer = tBookService.batchupdateBook(cart);
    tBookService.selectBookStoreById(cart);
    model.addAttribute("tOrderSquence",tOrder.getOrderSquence());
    session.removeAttribute(BookStoreConstants.CART_SESSION_KEY);
    return "pages/cart/checkout";
}

2.在主启动类上添加自动开启事务管理注解:@EnableTransactionManagement

@SpringBootApplication
@MapperScan("com.atguigu.mapper")
@EnableTransactionManagement
public class SpringbootApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootBookstoreApplication.class, args);
    }

}

3.好了搞定!