insert into stock(
category,count,shelve_id,row,column,status,export_time
) values
(#{item.category},#{item.count},#{item.shelveId},#{item.row},#{item.column},#{item.status},#{item.exportTime})
insert into stock(
category,`count`,shelve_id,row,`column`,status
) values (#{req.category},#{req.count},#{req.shelveId},#{req.row},#{req.column},#{req.status})
ON DUPLICATE KEY UPDATE set `count` = #{req.count},category = #{req.category}