项目名称bug修改，京东商品推荐修改

admin

2019-09-12 c6b07c598a9585a68547ffc2a9b540ca74a3920b

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package com.yeshi.fanli.dao.mybatis;
 
 
public interface ScanHistoryMapper {
 
    long countUserScanHistory(Long userId);
    
}