主键为Null问题

cash-service/market-service/src/main/java/com/czg/service/market/service/impl/MkPointsGoodsServiceImpl.java

@@ -127,6 +127,7 @@ public class MkPointsGoodsServiceImpl extends ServiceImpl<MkPointsGoodsMapper, M
     @Override
     public boolean upNumberById(Long id, Integer quantity, Integer totalExchangeCount) {
         MkPointsGoods goodUp = new MkPointsGoods();
+        goodUp.setId(id);
         goodUp.setQuantity(quantity);
         goodUp.setTotalExchangeCount(totalExchangeCount);
         return updateById(goodUp);