select role_id, menu_id from et_role_menu
insert into et_role_menu
role_id,menu_id,#{roleId},#{menuId},
update et_role_menu
menu_id = #{menuId},
where role_id = #{roleId}
delete from et_role_menu where role_id = #{roleId}
delete from et_role_menu where role_id in
#{roleId}