编辑货号校验修改

@@ -277,7 +277,7 @@ public class ProductServiceImpl implements IProductService, ApplicationContextAw
 		if (isCheckUrl && CollectionUtils.isEmpty(bo.getImageUrlList())) {
 			throw new CommonException(400, "请上传至少一张图片");
 		}
-		if (CollectionUtils.isNotEmpty(productMapper.selectByProductCode(bo.getProductCode()))) {
+		if (bo.getId() == null && CollectionUtils.isNotEmpty(productMapper.selectByProductCode(bo.getProductCode()))) {
 			throw new CommonException(400, "该货号已存在！");
 		}
 	}