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mybatis sql in 查询（mybatis sql语句传入参数是list）mybatis中使用in查询时in怎么接收值

1.in查询条件是list时

 

<select id="getMultiMomentsCommentsCounts" resultType="int"> select moment_comment_count from tbl_moment_commentCount where mid in <foreach item="item" index="index" collection="list" open="(" separator="," close=")">      #{item}  </foreach>  </select>

 

.1 如果参数的类型是List, 则在使用时，collection属性要必须指定为 list

<select id="findByIdsMap" resultMap="BaseResultMap">   Select   <include refid="Base_Column_List" />   from jria where ID in   <foreach item="item" index="index" collection="list" open="(" separator="," close=")">    #{item}   </foreach>  </select>  

2.in查询条件是枚举值时

默认下,使用select xxx where in(xx,xx)查询,返回结果是按主键排序的,如果要按in()中值的排列顺序,可以这样做:

select * from talbe where id in(3,2,4,1) ORDER BY FIND_IN_SET( id, '3,2,4,1')