外卖项目day11---用户下单

 OrderController代码

@RestController("userOrderController")
@RequestMapping("/user/order")
@Api(tags = "用户端订单相关接口")
@Slf4j
public class OrderController {@Autowiredprivate OrderService orderService;/*** 用户下单* @param ordersSubmitDTO* @return*/@PostMapping("/submit")@ApiOperation("用户下单")public Result<OrderSubmitVO> submit(@RequestBody OrdersSubmitDTO ordersSubmitDTO){log.info("用户下单，参数为：{}",ordersSubmitDTO);OrderSubmitVO orderSubmitVO = orderService.submitOrder(ordersSubmitDTO);return Result.success(orderSubmitVO);}
}

OrderService代码

public interface OrderService {/*** 用户下单* @param ordersSubmitDTO* @return*/OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO);
}

OrderServiceImpl代码

@Service
public class OrderServiceImpl implements OrderService {@Autowiredprivate OrderMapper orderMapper;@Autowiredprivate OrderDetailMapper orderDetailMapper;@Autowiredprivate AddressBookMapper addressBookMapper;@Autowiredprivate ShoppingCartMapper shoppingCartMapper;/*** 用户下单* @param ordersSubmitDTO* @return*/@Transactionalpublic OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO) {//1、处理各种业务异常（地址簿为空，购物车数据为空）AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());if(addressBook == null){//抛出业务异常throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);}//查看当前用户的购物车数据Long userId = BaseContext.getCurrentId();ShoppingCart shoppingCart = new ShoppingCart();shoppingCart.setUserId(userId);List<ShoppingCart> shoppingCartList = shoppingCartMapper.list(shoppingCart);if(shoppingCartList == null || shoppingCartList.size() == 0 ){//抛出业务异常throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);}//2、向订单表插入一条数据Orders orders = new Orders();BeanUtils.copyProperties(ordersSubmitDTO,orders);orders.setOrderTime(LocalDateTime.now());orders.setPayStatus(Orders.UN_PAID);orders.setStatus(Orders.PENDING_PAYMENT);orders.setNumber(String.valueOf(System.currentTimeMillis()));orders.setPhone(addressBook.getPhone());orders.setConsignee(addressBook.getConsignee());orders.setAddress(addressBook.getProvinceName() + addressBook.getCityName() + addressBook.getDistrictName()+addressBook.getDetail());orders.setUserId(userId);orderMapper.insert(orders);List<OrderDetail> orderDetailList = new ArrayList<>();//3、向订单明细表插入n条数据for (ShoppingCart cart : shoppingCartList) {OrderDetail orderDetail = new OrderDetail(); //订单明细BeanUtils.copyProperties(cart,orderDetail);orderDetail.setOrderId(orders.getId()); //设置当前订单明细关联的订单idorderDetailList.add(orderDetail);}orderDetailMapper.insertBatch(orderDetailList);//4、清空当前用户的购物车数据shoppingCartMapper.cleanShoppingCart(userId);//5、封装VO返回结果OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder().id(orders.getId()).orderNumber(orders.getNumber()).orderTime(orders.getOrderTime()).orderAmount(orders.getAmount()).build();return orderSubmitVO;}
}

OrderMapper代码

@Mapper
public interface OrderMapper {/*** 插入订单数据* @param orders*/void insert(Orders orders);
}

OrderMapper.xml代码

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.sky.mapper.OrderDetailMapper"><insert id="insertBatch">insert into order_detail (name , image, order_id, dish_id, setmeal_id, dish_flavor, number, amount)values<foreach collection="orderDetailList" item="od" separator=",">(#{od.name}, #{od.image}, #{od.orderId},#{od.dishId},#{od.setmealId},#{od.dishFlavor},#{od.number},#{od.amount})</foreach></insert>
</mapper>

OrderDetailMapper代码 

@Mapper
public interface OrderDetailMapper {/*** 批量插入订单明细数据* @param orderDetailList*/void insertBatch(List<OrderDetail> orderDetailList);
}

OrderDetailMapper.xml代码

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.sky.mapper.OrderMapper"><insert id="insert" useGeneratedKeys="true" keyProperty="id">insert into orders (number,status,user_id, address_book_id,order_time, checkout_time, pay_method,pay_status,amount,remark, phone, address, consignee, estimated_delivery_time, delivery_status,pack_amount,tableware_number,tableware_status)values(#{number},#{status},#{userId},#{addressBookId},#{orderTime},#{checkoutTime}, #{payMethod},#{payStatus},#{amount},#{remark},#{phone},#{address},#{consignee},#{estimatedDeliveryTime},#{deliveryStatus},#{packAmount},#{tablewareNumber}, #{tablewareStatus})</insert></mapper>