[POS][修改]:券支付后余额

mallinkPosApi/src/main/java/com/iformall/service/impl/PosServiceImpl.java

@@ -356,6 +356,7 @@ public class PosServiceImpl implements PosService {
             promotionCoupon.put(WxPayConstant.COUPON_ORDER_LIST, couponList);
             // 券优惠总信息
             promotionCoupon.put(WxPayConstant.COUPON_PROMOTION_AMOUNT, promotionCalc.getPromotionAmount());
+            promotionCoupon.put(WxPayConstant.REMAIN_AMOUNT, promotionCalc.getAmountLeftAfterPay());
             promotionInfo.put(WxPayConstant.COUPON, promotionCoupon);
         }
         // 构造支付信息