苍穹外卖--用户下单

最新推荐文章于 2025-07-01 10:52:51 发布

原创最新推荐文章于 2025-07-01 10:52:51 发布 · 282 阅读

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CC 4.0 BY-SA版权

文章标签：

#苍穹外卖 #黑马 #用户下单

1.需求分析和设计

用户下单业务说明：

在电商系统中，用户是通过下单的方式通知商家，用户已经购买了商品，需要商家进行备货和发货

用户下单后会产生订单相关数据，订单数据需要能够体现如下信息：

用户点餐业务流程：

接口设计(分析)：

接口设计：

数据库设计：

订单表orders：

订单明细表order_detail:

订单表和订单明细表的关系：一对多

2.代码实现

OrderController.java代码：

package com.sky.controller.user;

import com.sky.dto.OrdersSubmitDTO;
import com.sky.result.Result;
import com.sky.service.OrderService;
import com.sky.vo.OrderSubmitVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@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.java代码：

package com.sky.service;

import com.sky.dto.OrdersSubmitDTO;
import com.sky.vo.OrderSubmitVO;

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

OrderServiceImpl.java代码：

package com.sky.service.impl;

import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.OrdersSubmitDTO;
import com.sky.entity.AddressBook;
import com.sky.entity.OrderDetail;
import com.sky.entity.Orders;
import com.sky.entity.ShoppingCart;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.AddressBookMapper;
import com.sky.mapper.OrderDetailMapper;
import com.sky.mapper.OrderMapper;
import com.sky.mapper.ShoppingCartMapper;
import com.sky.service.OrderService;
import com.sky.vo.OrderSubmitVO;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;

@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) {
        //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);
        }
        //查询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);
        }
        //向订单表插入1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.setUserId(userId);

        orderMapper.insert(orders);//需要返回主键，因为在订单明细里需要主键

        List<OrderDetail> orderDetailList = new ArrayList<>();
        //向订单明细表插入n条数据
        for(ShoppingCart cart : shoppingCartList){//遍历获取购物车内的数据
            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);
        //清空当前用户的购物车数据
        shoppingCartMapper.deleteByUserId(userId);
        //封装VO返回结果
        OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder()
                .id(orders.getId())
                .orderNumber(orders.getNumber())
                .orderAmount(orders.getAmount())
                .build();
        return orderSubmitVO;
    }
}

OrderDetailMapper.java代码：

package com.sky.mapper;

import com.sky.entity.OrderDetail;
import org.apache.ibatis.annotations.Mapper;

import java.util.List;

@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.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>

OrderMapper.java代码：

package com.sky.mapper;

import com.sky.entity.Orders;
import org.apache.ibatis.annotations.Mapper;

@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.OrderMapper">

    <insert id="insert" parameterType="Orders" 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>