OrderController代码

@RestController("userOrderController")
@RequestMapping("/user/order")
@Api(tags = "用户端订单相关接口")
@Slf4j
public class OrderController {

    @Autowired
    private 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 {

    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private OrderDetailMapper orderDetailMapper;
    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;


    /**
     * 用户下单
     * @param ordersSubmitDTO
     * @return
     */
    @Transactional
    public 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id
            orderDetailList.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>