f

app/main/api/internal/logic/admin_order/adminrefundorderlogic.go

@@ -81,13 +81,12 @@ func (l *AdminRefundOrderLogic) handleAlipayRefund(order *model.Order, req *type
 	if order.PayTime.Valid {
 		orderPayTime = &order.PayTime.Time
 	}
-	refundResp, err := l.svcCtx.AlipayService.AliRefund(l.ctx, order.OrderNo, req.RefundAmount, orderPayTime)
+	refundNo := l.generateRefundNo(order.OrderNo)
+	refundResp, err := l.svcCtx.AlipayService.AliRefund(l.ctx, order.OrderNo, req.RefundAmount, orderPayTime, refundNo)
 	if err != nil {
 		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "AdminRefundOrder, 支付宝退款失败 err: %v", err)
 	}
 
-	refundNo := l.generateRefundNo(order.OrderNo)
-
 	if refundResp.IsSuccess() {
 		// 支付宝退款成功，创建成功记录
 		err = l.createRefundRecordAndUpdateOrder(order, req, refundNo, refundResp.TradeNo, model.OrderStatusRefunded, model.OrderRefundStatusSuccess)
@@ -188,9 +187,9 @@ func (l *AdminRefundOrderLogic) createRefundRecordOnly(order *model.Order, req *
 	return nil
 }
 
-// generateRefundNo 生成退款单号
+// generateRefundNo 生成退款单号（同一订单多次退款需唯一，避免 unique_refund_no 冲突）
 func (l *AdminRefundOrderLogic) generateRefundNo(orderNo string) string {
-	return fmt.Sprintf("%s%s", RefundNoPrefix, orderNo)
+	return fmt.Sprintf("%s%s-%d", RefundNoPrefix, orderNo, time.Now().UnixMilli())
 }
 
 // createNullString 创建 sql.NullString