添加processGiftCardPayment方法，用于处理礼品卡支付逻辑。

nightFragrance-massage/src/main/java/com/ylx/giftCard/service/IGiftCardOrderService.java

@@ -1,15 +1,17 @@
 package com.ylx.giftCard.service;
 
 import com.baomidou.mybatisplus.extension.service.IService;
+import com.github.binarywang.wxpay.bean.notify.WxPayOrderNotifyV3Result;
 import com.ylx.common.core.domain.model.WxLoginUser;
 import com.ylx.giftCard.domain.GiftCard;
 import com.ylx.giftCard.domain.GiftCardOrder;
-
-import java.util.List;
+import com.ylx.massage.domain.TWxUser;
 
 public interface IGiftCardOrderService extends IService<GiftCardOrder> {
 
     GiftCardOrder buildOrder(GiftCard card, Integer quantity, String merchantId, WxLoginUser wxLoginUser);
 
     void cancelOrder(Long id);
+
+    void processGiftCardPayment(WxPayOrderNotifyV3Result.DecryptNotifyResult result, TWxUser wxUser, GiftCardOrder cardOrder);
 }

nightFragrance-massage/src/main/java/com/ylx/giftCard/service/impl/GiftCardOrderServiceImpl.java

@@ -4,6 +4,7 @@ import cn.hutool.core.util.ObjectUtil;
 import cn.hutool.core.util.RandomUtil;
 import cn.hutool.core.util.StrUtil;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.github.binarywang.wxpay.bean.notify.WxPayOrderNotifyV3Result;
 import com.ylx.common.core.domain.model.WxLoginUser;
 import com.ylx.common.exception.ServiceException;
 import com.ylx.common.utils.DateUtils;
@@ -13,7 +14,11 @@ import com.ylx.giftCard.enums.GiftCardOrderStatusEnum;
 import com.ylx.giftCard.mapper.GiftCardOrderMapper;
 import com.ylx.giftCard.service.IGiftCardOrderService;
 import com.ylx.massage.domain.TJs;
+import com.ylx.massage.domain.TWxUser;
 import com.ylx.massage.service.TJsService;
+import com.ylx.massage.service.TWxUserService;
+import com.ylx.shopingfundsdetail.domain.vo.ShoppingFundsDetailAddDto;
+import com.ylx.shopingfundsdetail.service.ShoppingFundsDetailService;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -28,6 +33,10 @@ public class GiftCardOrderServiceImpl extends ServiceImpl<GiftCardOrderMapper, G
 
     @Resource
     private TJsService jsService;
+    @Resource
+    private TWxUserService wxUserService;
+    @Resource
+    private ShoppingFundsDetailService shoppingFundsDetailService;
 
     @Override
     @Transactional(rollbackFor = Exception.class)
@@ -96,6 +105,38 @@ public class GiftCardOrderServiceImpl extends ServiceImpl<GiftCardOrderMapper, G
         log.info("订单取消成功，订单号:{},购物卡ID:{}", order.getOrderNo(), order.getGiftCardId());
     }
 
+    @Transactional(rollbackFor = Exception.class)
+    public void processGiftCardPayment(WxPayOrderNotifyV3Result.DecryptNotifyResult result, TWxUser wxUser,GiftCardOrder cardOrder) {
+
+        // 更新订单状态
+        this.lambdaUpdate()
+                .set(GiftCardOrder::getStatus, GiftCardOrderStatusEnum.PAID.getCode())
+                .eq(GiftCardOrder::getId, cardOrder.getId())
+                .update();
+
+        // 计算充值金额
+        Integer totalCent = result.getAmount().getTotal();
+        BigDecimal payAmount = new BigDecimal(totalCent).divide(BigDecimal.valueOf(100), 2, BigDecimal.ROUND_HALF_UP);
+
+        // 更新用户余额
+        BigDecimal oldBalance = wxUser.getdBalance();
+        BigDecimal newBalance = oldBalance.add(payAmount);
+        this.wxUserService.lambdaUpdate()
+                .set(TWxUser::getdBalance, newBalance)
+                .eq(TWxUser::getId, wxUser.getId())
+                .update();
+
+        // 记录购物金明细
+        ShoppingFundsDetailAddDto dto = new ShoppingFundsDetailAddDto();
+        dto.setUserId(wxUser.getId());
+        dto.setAmount(payAmount);
+        dto.setOrderNo(result.getOutTradeNo());
+        dto.setExpenseType(0); // 充值
+        dto.setBalance(newBalance);
+        dto.setGiftCardId(cardOrder.getGiftCardId());
+        shoppingFundsDetailService.addShoppingFundsDetail(dto);
+    }
+
     /**
      * 生成唯一订单号
      */