详解 Mysql查询结果顺序按 in() 中ID 的顺序排列
实例代码：
<select id="queryGBStyleByIDs" resultMap="styleMap"> select style_num_id ,style_id,style_title,style_pic FROM gb_style where online = 1 AND is_hide = 0 and style_num_id in <foreach collection="styleNumIDs" item="styleNumId" separator="," open="(" close=")"> #{
styleNumId}
</foreach> ORDER BY FIELD <foreach collection="styleNumIDs" item="styleNumId" separator="," open="(style_num_id," close=")"> #{
styleNumId}
</foreach> </select>
最终输出sql如下:
select style_num_id ,style_id,style_title,style_pic FROM gb_style where online = 1 AND is_hide = 0 and style_num_id in (1,3,2,5) order by field (style_num_id,1,3,2,5);
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