From f894e386d81e43831ea5fda78e30a029eca6fda5 Mon Sep 17 00:00:00 2001
From: “mitao” <“2763622819@qq.com”>
Date: 星期二, 16 十二月 2025 18:37:33 +0800
Subject: [PATCH] 大礼包、实物商品下单、回调

---
 ruoyi-system/src/main/java/com/ruoyi/system/service/impl/TBigGiftPackageOrderServiceImpl.java |  157 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 155 insertions(+), 2 deletions(-)

diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/TBigGiftPackageOrderServiceImpl.java b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/TBigGiftPackageOrderServiceImpl.java
index 0bdfe7f..f44ce30 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/TBigGiftPackageOrderServiceImpl.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/TBigGiftPackageOrderServiceImpl.java
@@ -1,18 +1,32 @@
 package com.ruoyi.system.service.impl;
 
+import com.alibaba.fastjson2.JSON;
+import com.alibaba.fastjson2.JSONObject;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.ruoyi.common.exception.ServiceException;
+import com.ruoyi.system.config.ICBCConfig;
+import com.ruoyi.system.dto.BigGiftPlaceOrderDTO;
 import com.ruoyi.system.mapper.TBigGiftPackageMapper;
+import com.ruoyi.system.mapper.TBigGiftPackageOrderMapper;
 import com.ruoyi.system.mapper.TCompanyMapper;
 import com.ruoyi.system.model.TBigGiftPackage;
 import com.ruoyi.system.model.TBigGiftPackageOrder;
-import com.ruoyi.system.mapper.TBigGiftPackageOrderMapper;
 import com.ruoyi.system.model.TCompany;
 import com.ruoyi.system.query.BigGiftPackageOrderQuery;
 import com.ruoyi.system.service.TBigGiftPackageOrderService;
-import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.ruoyi.system.utils.ICBCPayUtil;
+import com.ruoyi.system.utils.OrderCodeGenerator;
+import com.ruoyi.system.vo.PlaceOrderVO;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 import javax.annotation.Resource;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.stream.Collectors;
@@ -25,6 +39,7 @@
  * @author xiaochen
  * @since 2025-12-08
  */
+@Slf4j
 @Service
 public class TBigGiftPackageOrderServiceImpl extends ServiceImpl<TBigGiftPackageOrderMapper, TBigGiftPackageOrder> implements TBigGiftPackageOrderService {
 
@@ -34,6 +49,11 @@
     @Resource
     private TBigGiftPackageMapper bigGiftPackageMapper;
 
+    @Autowired
+    private ICBCPayUtil icbcPayUtil;
+
+    @Autowired
+    private ICBCConfig icbcConfig;
 
     @Override
     public List<TBigGiftPackageOrder> pageList(Page<TBigGiftPackageOrder> tBigGiftPackageOrderPage, BigGiftPackageOrderQuery query) {
@@ -86,4 +106,137 @@
         }
         return tBigGiftPackageOrders ;
     }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public PlaceOrderVO placeOrder(BigGiftPlaceOrderDTO dto, Integer appUserId, String openid) {
+        // 1. 校验商品是否存在
+        TBigGiftPackage bigGiftPackage = bigGiftPackageMapper.selectById(dto.getBigGiftPackageId());
+        if (bigGiftPackage == null) {
+            throw new ServiceException("商品不存在");
+        }
+
+        // 2. 校验库存是否充足
+        if (bigGiftPackage.getInventory() == null || bigGiftPackage.getInventory() < dto.getQuantity()) {
+            throw new ServiceException("商品库存不足");
+        }
+
+        // 3. 校验支付方式
+        if (dto.getPaymentType() != 1 && dto.getPaymentType() != 2) {
+            throw new ServiceException("支付方式不正确");
+        }
+
+        // 4. 使用乐观锁扣减库存(防止超卖)
+        int updatedRows = bigGiftPackageMapper.deductInventory(dto.getBigGiftPackageId(), dto.getQuantity());
+        if (updatedRows == 0) {
+            throw new ServiceException("商品库存不足,请稍后重试");
+        }
+
+        // 5. 计算支付金额
+        BigDecimal paymentAmount;
+        if (dto.getPaymentType() == 1) {
+            // 订金+尾款模式,先支付订金
+            paymentAmount = bigGiftPackage.getDeposit().multiply(new BigDecimal(dto.getQuantity()));
+        } else {
+            // 全款模式
+            paymentAmount = bigGiftPackage.getTotalPrice().multiply(new BigDecimal(dto.getQuantity()));
+        }
+
+        // 6. 先生成支付订单号(所有订单共用同一个支付订单号,便于支付回调时查询)
+        String payOrderCode = OrderCodeGenerator.generateBigGiftPayOrderCode();
+
+        // 7. 批量创建订单
+        List<TBigGiftPackageOrder> orderList = new ArrayList<>();
+        List<String> orderCodes = new ArrayList<>();
+        String goodsJson = JSON.toJSONString(bigGiftPackage);
+        LocalDateTime now = LocalDateTime.now();
+
+        for (int i = 0; i < dto.getQuantity(); i++) {
+            TBigGiftPackageOrder order = new TBigGiftPackageOrder();
+            String orderCode = OrderCodeGenerator.generateBigGiftOrderCode();
+            order.setCode(orderCode);
+            order.setPayOrderCode(payOrderCode);
+            order.setAppUserId(appUserId);
+            order.setCreateTime(now);
+            order.setBigGiftPackageId(dto.getBigGiftPackageId());
+            order.setBigGiftPackage(goodsJson);
+            order.setOrderPrice(bigGiftPackage.getTotalPrice());
+            order.setDeposit(bigGiftPackage.getDeposit());
+            order.setFinalPayment(bigGiftPackage.getTotalPrice().subtract(bigGiftPackage.getDeposit()));
+            order.setPaymentType(dto.getPaymentType());
+            order.setEffectDayFlag(dto.getEffectDayFlag());
+            // 订单状态:1=待付款
+            order.setStatus(1);
+            order.setDelFlag(0);
+
+            orderList.add(order);
+            orderCodes.add(orderCode);
+        }
+
+        // 批量插入订单
+        this.saveBatch(orderList);
+
+        // 获取订单ID列表
+        List<Integer> orderIds = orderList.stream()
+                .map(TBigGiftPackageOrder::getId)
+                .collect(Collectors.toList());
+
+        // 8. 调用工行支付
+        log.info("大礼包下单,支付订单号:{},业务订单号:{},支付金额:{},用户ID:{}", payOrderCode, orderCodes, paymentAmount, appUserId);
+        JSONObject paymentParams = icbcPayUtil.wechatPay(payOrderCode, paymentAmount, bigGiftPackage.getName(), openid,
+                icbcConfig.getNotifyUrl() + "/big-gift/pay-notify");
+
+        // 9. 构建返回结果
+        PlaceOrderVO vo = new PlaceOrderVO();
+        vo.setOrderIds(orderIds);
+        vo.setOrderCodes(orderCodes);
+        vo.setPaymentParams(paymentParams);
+        return vo;
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public PlaceOrderVO payFinalPayment(Integer orderId, Integer appUserId, String openid) {
+        // 1. 查询订单
+        TBigGiftPackageOrder order = this.getById(orderId);
+        if (order == null) {
+            throw new ServiceException("订单不存在");
+        }
+
+        // 2. 校验订单归属
+        if (!order.getAppUserId().equals(appUserId)) {
+            throw new ServiceException("无权操作此订单");
+        }
+
+        // 3. 校验支付方式(必须是订金+尾款模式)
+        if (order.getPaymentType() != 1) {
+            throw new ServiceException("该订单不支持尾款支付");
+        }
+
+        // 4. 校验订单状态(必须是已付订金状态)
+        if (order.getStatus() != 2) {
+            throw new ServiceException("订单状态不正确,无法支付尾款");
+        }
+
+        // 5. 获取尾款金额
+        BigDecimal finalPayment = order.getFinalPayment();
+        if (finalPayment == null || finalPayment.compareTo(BigDecimal.ZERO) <= 0) {
+            throw new ServiceException("尾款金额异常");
+        }
+
+        // 6. 生成尾款支付订单号
+        String finalPayOrderCode = OrderCodeGenerator.generateBigGiftFinalPayOrderCode();
+
+        // 7. 调用工行支付
+        log.info("大礼包尾款支付,订单ID:{},支付订单号:{},尾款金额:{},用户ID:{}", orderId, finalPayOrderCode, finalPayment, appUserId);
+        JSONObject paymentParams = icbcPayUtil.wechatPay(finalPayOrderCode, finalPayment, "大礼包尾款", openid,
+                icbcConfig.getNotifyUrl() + "/big-gift/final-pay-notify");
+
+        // 8. 构建返回结果
+        PlaceOrderVO vo = new PlaceOrderVO();
+        vo.setOrderIds(Collections.singletonList(orderId));
+        vo.setOrderCodes(Collections.singletonList(order.getCode()));
+        vo.setPaymentParams(paymentParams);
+        return vo;
+    }
 }

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