MyBatis:@Select 注解，参数为List

@Select("<script>" +
    "select * from positionlog where fk_unitid in("
    +"<foreach collection='unitId' separator=',' item='id'>" 
    + "#{id} "
    + "</foreach> "
    +")</script>")
List<Positionlog> findByUnitId(@Param("unitId")List<Integer> unitId);