产品购买人数空指针异常处理

cereshop-app/src/main/java/com/shop/cereshop/app/service/product/impl/CereShopProductServiceImpl.java

@@ -1030,8 +1030,10 @@ public class CereShopProductServiceImpl implements CereShopProductService {
                 Long productId = product.getProductId();
                 if(!usersMapIsEmpty){
                     //填充产品购买人数信息
+                    if (ObjectUtils.isNotEmpty(productUsersMap.get(productId))){
                         product.setUsers(productUsersMap.get(productId).getUsers());
                     }
+                }
                 if(!skuMapIsEmpty){
                     //填充产品sku信息
                     CanvasProductSku canvasProductSku = productSkuMap.get(productId);