select role_id, dept_id from company_role_dept
insert into company_role_dept
role_id,dept_id,#{roleId},#{deptId},
update company_role_dept
dept_id = #{deptId},
where role_id = #{roleId}
delete from company_role_dept where role_id = #{roleId}
delete from company_role_dept where role_id in
#{roleId}
insert into company_role_dept(role_id, dept_id) values
(#{item.roleId},#{item.deptId})