目录

一、C端用户订单相关接口

1.OrderController.java

2.interface OrderService

3.OrderServiceImpl.java

4.interface OrderMapper


一、C端用户订单相关接口

C端用户订单相关接口-用户下单+历史订单查询+查询订单详情+用户取消订单+再来一单

1.OrderController.java

package com.sky.controller.user;

import com.sky.dto.OrdersSubmitDTO;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.OrderService;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.tags.Tag;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

@Tag(name = "C端-用户订单相关接口")
@Slf4j
@RestController("amdinOrderController")
@RequestMapping("/user/order")
public class OrderController {
    @Autowired
    private OrderService orderService;

    // 用户下单
    @Operation(summary = "用户下单")
    @PostMapping("/submit")
    public Result<OrderSubmitVO> submit(@RequestBody OrdersSubmitDTO ordersSubmitDTO){
        log.info("用户下单的数据为:{}",ordersSubmitDTO);
        OrderSubmitVO orderSubmitVO = orderService.submitOrder(ordersSubmitDTO);

        return Result.success(orderSubmitVO);
    }

    // 历史订单查询
    @Operation(summary = "历史订单查询")
    @GetMapping("/historyOrders")
    public Result<PageResult> page(Integer page, Integer pageSize, Integer status){
        log.info("历史订单查询:page:{},pageSize:{},status:{}",page,pageSize,status);
        // 历史订单条件分页查询
        PageResult pageResult = orderService.pageQuery(page,pageSize,status);

        return Result.success(pageResult);
    }

    // 查询订单详情
    @Operation(summary = "查询订单详情")
    @GetMapping("/orderDetail/{id}")
    public Result<OrderVO> details(@PathVariable Long id){
        log.info("根据id查询订单详情:{}",id);
        OrderVO orderVO = orderService.details(id);

        return Result.success(orderVO);
    }

    // 用户取消订单
    @Operation(summary = "用户取消订单")
    @PutMapping("/cancel/{id}")
    public Result cancel(@PathVariable Long id) throws Exception {
        log.info("用户取消订单:{}",id);
        orderService.userCancelById(id);

        return Result.success();
    }

    // 再来一单
    @Operation(summary = "再来一单")
    @PostMapping("/repetition/{id}")
    public Result repetition(@PathVariable Long id) {
        log.info("再来一单:{}",id);
        orderService.repetition(id);

        return Result.success();
    }

}

2.interface OrderService

package com.sky.service;

import com.sky.dto.*;
import com.sky.result.PageResult;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;

public interface OrderService {
    // 用户下单
    OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO);

    // 历史订单条件分页查询
    PageResult pageQuery(Integer page, Integer pageSize, Integer status);

    // 查询订单详情
    OrderVO details(Long id);

    // 用户取消订单
    void userCancelById(Long id) throws Exception;

    // 再来一单
    void repetition(Long id);

    // 订单搜索
    PageResult conditionSearch(OrdersPageQueryDTO ordersPageQueryDTO);

    // 各个状态的订单数量统计
    OrderStatisticsVO statistics();

    // 接单
    void confirm(OrdersConfirmDTO ordersConfirmDTO);

    // 拒单
    void rejection(OrdersRejectionDTO ordersRejectionDTO);

    // 取消订单
    void cancel(OrdersCancelDTO ordersCancelDTO);

    // 派送订单
    void delivery(Long id);

    // 完成订单
    void complete(Long id);
}

3.OrderServiceImpl.java

package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
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.OrderBusinessException;
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.result.PageResult;
import com.sky.service.OrderService;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

@Service
@Slf4j
public class OrderServiceImpl implements OrderService {
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private OrderDetailMapper orderDetailMapper;
    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    // @Autowired
    // private WeChatPayUtil weChatPayUtil;

    // 用户下单
    @Transactional
    @Override
    public OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO) {
        // 1处理各种业务异常(地址薄为空、购物车为空)
        // 1.1判断地址薄是否为空
        AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());

        if (addressBook == null) {
            // 抛出业务异常--MessageConstant.ADDRESS_BOOK_IS_NULL = 用户地址为空,不能下单
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }

        // TODO 检查客户的收货地址是否超出配送范围


        // 1.2判断购物车是否为空
        // 获取微信用户登录id
        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--MessageConstant.SHOPPING_CART_IS_NULL = 购物车数据为空,不能下单
            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());  //下单时间
        orders.setPayStatus(Orders.UN_PAID);  //支付状态 0未支付 1已支付 2退款
        orders.setStatus(Orders.PENDING_PAYMENT);  //订单状态 1待付款 2待接单 3已接单 4派送中 5已完成 6已取消 7退款
        orders.setNumber(String.valueOf(System.currentTimeMillis()));  //订单号
        orders.setPhone(addressBook.getPhone());  //手机号
        orders.setConsignee(addressBook.getConsignee());  //收货人
        orders.setAddress(addressBook.getProvinceName() + addressBook.getCityName() + addressBook.getDistrictName() + addressBook.getDetail());  //收货地址
        orders.setUserId(userId);  //微信用户登录id

        // 插入数据
        orderMapper.insert(orders);

        List<OrderDetail> orderDetailList = new ArrayList<>();
        // 向订单明细表插入n条数据
        for (ShoppingCart cart : shoppingCartList) {
            OrderDetail orderDetail = new OrderDetail();  //订单明细表
            BeanUtils.copyProperties(cart,orderDetail);
            orderDetail.setOrderId(orders.getId());  //设置当前订单相关联的订单id
            orderDetailList.add(orderDetail);
        }
        // 批量插入订单明细
        orderDetailMapper.insertBatch(orderDetailList);

        // 清空购物车
        shoppingCartMapper.deleteShoppingCartAll(userId);

        // 封装VO返回结果
        OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder()
                .id(orders.getId())
                .orderNumber(orders.getNumber())
                .orderAmount(orders.getAmount())
                .orderTime(orders.getOrderTime())
                .build();

        return orderSubmitVO;
    }

    // 历史订单条件分页查询
    @Override
    public PageResult pageQuery(Integer page, Integer pageSize, Integer status) {
        PageHelper.startPage(page,pageSize);

        OrdersPageQueryDTO ordersPageQueryDTO = new OrdersPageQueryDTO();
        ordersPageQueryDTO.setUserId(BaseContext.getCurrentId());
        ordersPageQueryDTO.setStatus(status);

        // 条件分页查询
        Page<Orders> ordersPage = orderMapper.pageQuery(ordersPageQueryDTO);

        List<OrderVO> list = new ArrayList<>();


        if (ordersPage != null && ordersPage.size() > 0) {
            for (Orders orders : ordersPage) {
                Long ordersId = orders.getId();

                // 根据订单id查询订单明细
                List<OrderDetail> orderDetailList = orderDetailMapper.getOrdersId(ordersId);

                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(orders,orderVO);
                orderVO.setOrderDetailList(orderDetailList);

                list.add(orderVO);
            }
        }

        return new PageResult(ordersPage.getTotal(),list);
    }

    // 查询订单详情
    @Override
    public OrderVO details(Long id) {
        // 根据id查询订单
        Orders orders = orderMapper.getById(id);

        // 查询该订单对应的菜品/套餐明细
        Long ordersId = orders.getId();
        List<OrderDetail> orderDetailList = orderDetailMapper.getOrdersId(ordersId);

        // 将该订单及其详情封装到OrderVO并返回
        OrderVO orderVO = new OrderVO();
        BeanUtils.copyProperties(orders,orderVO);
        orderVO.setOrderDetailList(orderDetailList);

        return orderVO;
    }

    // 用户取消订单
    @Override
    public void userCancelById(Long id) throws Exception {
        // 根据id查询订单
        Orders ordersDB = orderMapper.getById(id);

        // 校验订单是否存在
        if (ordersDB == null) {
            // MessageConstant.ORDER_NOT_FOUND = 订单不存在
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }

        //订单状态 1待付款 2待接单 3已接单 4派送中 5已完成 6已取消
        if (ordersDB.getStatus() > 2) {
            // MessageConstant.ORDER_STATUS_ERROR = 订单状态错误
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        Orders orders = new Orders();
        orders.setId(ordersDB.getId());

        // TODO-----因为没有微信支付证书,这里的退款接口无法实现------
        // 订单处于待接单状态下取消,需要进行退款
        // if (ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
        //     //调用微信支付退款接口
        //     weChatPayUtil.refund(
        //             ordersDB.getNumber(), //商户订单号
        //             ordersDB.getNumber(), //商户退款单号
        //             new BigDecimal(0.01),//退款金额,单位 元
        //             new BigDecimal(0.01));//原订单金额
        //
        //     //支付状态修改为 退款
        //     // orders.setPayStatus(Orders.REFUND);
        // }

        // 更新订单状态、取消原因、取消时间
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason("用户取消");
        orders.setCancelTime(LocalDateTime.now());
        // 更新订单状态
        orderMapper.update(orders);

    }

    // 再来一单
    @Override
    public void repetition(Long id) {
        // 查询当前用户id
        Long userId = BaseContext.getCurrentId();

        // 根据订单id查询当前订单详情
        List<OrderDetail> orderDetailList = orderDetailMapper.getOrdersId(id);

        // 将订单详情对象转换为购物车对象
        List<ShoppingCart> shoppingCartList = orderDetailList.stream().map(x -> {
            ShoppingCart shoppingCart = new ShoppingCart();

            // 将原订单详情里面的菜品信息重新复制到购物车对象中
            BeanUtils.copyProperties(x, shoppingCart, "id");
            shoppingCart.setUserId(userId);
            shoppingCart.setCreateTime(LocalDateTime.now());

            return shoppingCart;
        }).collect(Collectors.toList());

        // 将购物车对象批量添加到数据库
        shoppingCartMapper.insertBatch(shoppingCartList);
    }

}

4.interface OrderMapper

package com.sky.mapper;

import com.github.pagehelper.Page;
import com.sky.dto.OrdersPageQueryDTO;
import com.sky.entity.Orders;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;


@Mapper
public interface OrderMapper {
    // 向订单表插入1条数据
    void insert(Orders orders);

    // 历史订单条件分页查询
    Page<Orders> pageQuery(OrdersPageQueryDTO ordersPageQueryDTO);

    // 根据id查询订单
    @Select("select * from orders where id = #{id}")
    Orders getById(Long id);

    // 更新订单状态
    void update(Orders orders);

    // 各个状态的订单数量统计
    @Select("select count(id) from orders where status = #{status}")
    Integer countStatus(Integer status);
}
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