mybatis choose when的用法實現代碼如下所示：
mapper.xml:
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<select id="query" resultType="map" parameterType="map"> select <choose> <when test="cityId == '00' "> a.city_id as CITYID, </when> <otherwise> <choose> <when test="cityId == '0001' and statsDimension==1"> a.level1_maintain_unit_id as CITYID, </when> <otherwise> a.county_id as CITYID, </otherwise> </choose> </otherwise> </choose> sum(ONUNUM) as ONUNUM, sum(ONTNUM) as ONTNUM from new_olt_upopt_sp_month_${tableDate} a where 1 = 1 <if test="cityId == '0001' and statsDimension==1"> and a.city_id = '0001' </if> <![CDATA[and a.gather_time >= ${startDate}]]> <![CDATA[and a.gather_time <= ${endDate}]]> group by <choose> <when test="cityId == '00' "> a.city_id </when> <otherwise> <choose> <when test="cityId == '0001' and statsDimension==1"> a.level1_maintain_unit_id </when> <otherwise> a.county_id having a.county_id in (select city_id from tab_city where city_id= #{cityId} or parent_id=#{cityId}) </otherwise> </choose> </otherwise> </choose> </select> |
以上所述是小編給大家介紹的Mybatis choose when用法實例代碼，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復大家的。在此也非常感謝大家對服務器之家網站的支持！
原文鏈接：http://blog.csdn.net/shannon8/article/details/71106855
