代码开发
DTO设计
根据用户下单接口的参数设计DTO:
在sky-pojo模块,OrdersSubmitDTO.java已定义
package com.sky.dto;import com.fasterxml.jackson.annotation.JsonFormat;
import lombok.Data;
import java.io.Serializable;
import java.math.BigDecimal;
import java.time.LocalDateTime;@Data
public class OrdersSubmitDTO implements Serializable {//地址簿idprivate Long addressBookId;//付款方式private int payMethod;//备注private String remark;//预计送达时间@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd HH:mm:ss")private LocalDateTime estimatedDeliveryTime;//配送状态 1立即送出 0选择具体时间private Integer deliveryStatus;//餐具数量private Integer tablewareNumber;//餐具数量状态 1按餐量提供 0选择具体数量private Integer tablewareStatus;//打包费private Integer packAmount;//总金额private BigDecimal amount;
}
VO设计
根据用户下单接口的返回结果设计VO:
在sky-pojo模块,OrderSubmitVO.java已定义
package com.sky.vo;import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.io.Serializable;
import java.math.BigDecimal;
import java.time.LocalDateTime;@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class OrderSubmitVO implements Serializable {//订单idprivate Long id;//订单号private String orderNumber;//订单金额private BigDecimal orderAmount;//下单时间private LocalDateTime orderTime;
}
Controller层
创建OrderController并提供用户下单方法:
package com.sky.controller.user;import com.sky.dto.OrdersPaymentDTO;
import com.sky.dto.OrdersSubmitDTO;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.OrderService;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
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.*;/*** 订单*/
@RestController("userOrderController")
@RequestMapping("/user/order")
@Slf4j
@Api(tags = "C端-订单接口")
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:{}", ordersSubmitDTO);OrderSubmitVO orderSubmitVO = orderService.submitOrder(ordersSubmitDTO);return Result.success(orderSubmitVO);} }
Service层接口
创建OrderService接口,并声明用户下单方法:
package com.sky.service;import com.sky.dto.*;
import com.sky.vo.OrderSubmitVO;public interface OrderService {/*** 用户下单* @param ordersSubmitDTO* @return*/OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO);
}
Service层实现类
创建OrderServiceImpl实现OrderService接口:
package com.sky.service.impl;/*** 订单*/
@Service
@Slf4j
public class OrderServiceImpl implements OrderService {@Autowiredprivate OrderMapper orderMapper;@Autowiredprivate OrderDetailMapper orderDetailMapper;@Autowiredprivate ShoppingCartMapper shoppingCartMapper;@Autowiredprivate AddressBookMapper addressBookMapper;/*** 用户下单** @param ordersSubmitDTO* @return*/@Transactionalpublic OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO) {//异常情况的处理(收货地址为空、超出配送范围、购物车为空)AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());if (addressBook == null) {throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);}Long userId = BaseContext.getCurrentId();ShoppingCart shoppingCart = new ShoppingCart();shoppingCart.setUserId(userId);//查询当前用户的购物车数据List<ShoppingCart> shoppingCartList = shoppingCartMapper.list(shoppingCart);if (shoppingCartList == null || shoppingCartList.size() == 0) {throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);}//构造订单数据Orders order = new Orders();BeanUtils.copyProperties(ordersSubmitDTO,order);order.setPhone(addressBook.getPhone());order.setAddress(addressBook.getDetail());order.setConsignee(addressBook.getConsignee());order.setNumber(String.valueOf(System.currentTimeMillis()));order.setUserId(userId);order.setStatus(Orders.PENDING_PAYMENT);order.setPayStatus(Orders.UN_PAID);order.setOrderTime(LocalDateTime.now());//向订单表插入1条数据orderMapper.insert(order);//订单明细数据List<OrderDetail> orderDetailList = new ArrayList<>();for (ShoppingCart cart : shoppingCartList) {OrderDetail orderDetail = new OrderDetail();BeanUtils.copyProperties(cart, orderDetail);orderDetail.setOrderId(order.getId());orderDetailList.add(orderDetail);}//向明细表插入n条数据orderDetailMapper.insertBatch(orderDetailList);//清理购物车中的数据shoppingCartMapper.deleteByUserId(userId);//封装返回结果OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder().id(order.getId()).orderNumber(order.getNumber()).orderAmount(order.getAmount()).orderTime(order.getOrderTime()).build();return orderSubmitVO;}}
Mapper层
创建OrderMapper接口和对应的xml映射文件:
OrderMapper.java
package com.sky.mapper;@Mapper
public interface OrderMapper {/*** 插入订单数据* @param order*/void insert(Orders order);
}
OrderMapper.xml
<?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>
创建OrderDetailMapper接口和对应的xml映射文件:
OrderDetailMapper.java
package com.sky.mapper;import com.sky.entity.OrderDetail;
import java.util.List;@Mapper
public interface OrderDetailMapper {/*** 批量插入订单明细数据* @param orderDetails*/void insertBatch(List<OrderDetail> orderDetails);}
OrderDetailMapper.xml
<?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="list">insert into order_detail(name, order_id, dish_id, setmeal_id, dish_flavor, number, amount, image)values<foreach collection="orderDetails" item="od" separator=",">(#{od.name},#{od.orderId},#{od.dishId},#{od.setmealId},#{od.dishFlavor},#{od.number},#{od.amount},#{od.image})</foreach></insert></mapper>