权限树就是也权限控制

package com.tansuo.biz; import java.util.List; import com.tansuo.dao.RoleDAO; import com.tansuo.entity.Role; public class RoleBiz { private RoleDAO rdao; public void setRdao(RoleDAO rdao) { this.rdao = rdao; } public void save(Role role){ rdao.save(role); } public void delete(int id)