mybatis的配置文件里面list作为请求参数使用

<if test="groupCodeList != null and groupCodeList.size()>0">
   and(B.group_code is null or B.GROUP_CODE in
    <foreach item="item" index="index" collection="groupCodeList"
     open="(" separator="," close=")">
     #{item}
    </foreach>
    )
  </if>

 Ibatis中sqlmap参数map中还需要套list的情况如何写？

http://hittyt.iteye.com/blog/1518665