在碰到多表联查
方法一
不用xml的查询,直接在mapper.java里边的方法通过@Select注解的形式
@Select("select b.id, b.bus_num, b.name, b.create_time, b.end_time, b.staff_id,b.linkman, b.phone, b.status, b.update_time, " + "b.is_speak, b.is_video, b.team_num, b.day_num, b.channel_num, b.product_id, b.menu, b.mobile_type, b.industry_id, " + "b.server, p.name as product_name , s.name as server_name from intercom_business b " + "left join intercom_product p on p.id = b.product_id " + "left join intercom_server s on s.id = b.server") public List<IntercomBusinessVo> selectAllBusinessList(IntercomBusiness intercomBusiness);