苍穹外卖--用户下单功能实现

sky-server/src/main/java/com/sky/controller/user/OrderController.java

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+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
+@Slf4j
+@RequestMapping("/user/order")
+@Api(tags = "用户端订单相关的接口")
+public class OrderController {
+
+    @Autowired
+    private OrderService orderService;
+
+
+    @PostMapping("/submit")
+    @ApiOperation("用户下单")
+    public Result<OrderSubmitVO> submit(@RequestBody OrdersSubmitDTO ordersSubmitDTO) {
+        log.info("用户下单：{}",ordersSubmitDTO);
+        //调用业务端接口
+        OrderSubmitVO orderSubmitVO = orderService.submit(ordersSubmitDTO);
+        return Result.success(orderSubmitVO);
+    }
+}

sky-server/src/main/java/com/sky/mapper/OrderDetailMapper.java

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+package com.sky.mapper;
+
+import com.sky.entity.OrderDetail;
+import org.apache.ibatis.annotations.Mapper;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import java.util.ArrayList;
+
+@Mapper
+public interface OrderDetailMapper {
+    /**
+     * 订单明细表，批量插入
+     * @param orderDetailList
+     */
+    void insertBatch(ArrayList<OrderDetail> orderDetailList);
+}

sky-server/src/main/java/com/sky/mapper/OrderMapper.java

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+package com.sky.mapper;
+
+import com.sky.entity.Orders;
+import org.apache.ibatis.annotations.Insert;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Options;
+
+@Mapper
+public interface OrderMapper {
+
+    @Insert("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})")
+    @Options(useGeneratedKeys = true,keyProperty = "id")
+    void insert(Orders orders);
+}

sky-server/src/main/java/com/sky/service/OrderService.java

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+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 submit(OrdersSubmitDTO ordersSubmitDTO);
+}

sky-server/src/main/java/com/sky/service/impl/OrderServiceImpl.java

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+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 AddressBookMapper addressBookMapper;
+
+    @Autowired
+    private ShoppingCartMapper shoppingCartMapper;
+
+    @Autowired
+    private OrderDetailMapper orderDetailMapper;
+
+    /**
+     * 用户下单
+     * @param ordersSubmitDTO
+     * @return
+     */
+    @Transactional  //让订单表 订单明细表 购物车表的sql操作同时成功或失败
+    @Override
+    public OrderSubmitVO submit(OrdersSubmitDTO ordersSubmitDTO) {
+        //1.处理各种业务异常（地址簿为空，购物车中数据为空）
+        AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
+        if (addressBook == null) {
+            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
+        }
+        ShoppingCart cart = new ShoppingCart();
+        cart.setUserId(BaseContext.getCurrentId());
+        List<ShoppingCart> cartList = shoppingCartMapper.list(cart);
+        if (cartList == null || cartList.size() == 0) {
+            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
+        }
+
+        //2.向订单表orders中插入一条数据
+        Orders orders = new Orders();
+        BeanUtils.copyProperties(ordersSubmitDTO,orders);
+        orders.setOrderTime(LocalDateTime.now());//下单时间
+        orders.setPayStatus(Orders.UN_PAID);//支付状态
+        orders.setStatus(Orders.PENDING_PAYMENT);//订单状态
+        orders.setNumber(String.valueOf(System.currentTimeMillis()));//订单号
+        orders.setPhone(addressBook.getPhone());//手机号
+        orders.setConsignee(addressBook.getConsignee());//收货人
+        orders.setUserId(BaseContext.getCurrentId());
+        orders.setAddress(addressBook.getProvinceName()+addressBook.getCityName()+addressBook.getDistrictName()+addressBook.getDetail());//详细地址：省市区+地址
+
+        orderMapper.insert(orders);
+
+        //3.向订单明细表插入N条商品明细记录
+        ArrayList<OrderDetail> orderDetails = new ArrayList<>();//订单明细集合
+        for (ShoppingCart shoppingCart : cartList) {
+            OrderDetail orderDetail = new OrderDetail();
+            BeanUtils.copyProperties(shoppingCart,orderDetail);
+            //动态设置订单明细属于哪个订单
+            orderDetail.setOrderId(orders.getId());
+            orderDetails.add(orderDetail);
+        }
+
+        //批量插入数据
+        orderDetailMapper.insertBatch(orderDetails);
+
+        //4.清空当前用户的购物车数据
+        shoppingCartMapper.deleteByUserId(BaseContext.getCurrentId());
+
+        //5.封装一个标准OrderSubmitVO返回给前端显示内容
+        OrderSubmitVO submitVO = OrderSubmitVO.builder()
+                .id(orders.getId())
+                .orderNumber(orders.getNumber())
+                .orderAmount(orders.getAmount())
+                .orderTime(orders.getOrderTime()).build();
+        return submitVO;
+    }
+}

sky-server/src/main/resources/mapper/OrderDetailMapper.xml

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+<?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" parameterType="java.util.List">
+        insert into order_detail (name, image, order_id, dish_id, setmeal_id, dish_flavor, number, amount) VALUES
+        <foreach collection="orderDetailList" separator="," item="od">
+            (#{od.name},#{od.image},#{od.orderId},#{od.dishId},#{od.setmealId},#{od.dishFlavor},#{od.number},#{od.amount})
+        </foreach>
+    </insert>
+</mapper>

sky-server/src/main/resources/mapper/OrderMapper.xml

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+<?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">
+</mapper>