fix: 处理null问题

buhuazhen

2026-06-01 facbfd2b1a0eb1ea971b699def8c85a43c5fa7fa

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package com.ruoyi.basic.mapper;
 
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.ruoyi.basic.pojo.Product;
 
public interface ProductMapper extends BaseMapper<Product> {
 
}