using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace Model{    public class Users    {        public virtual int userID { get; set; }        public virtual string uname { get; set; }        public virtual Roles roles { get; set; }//一个用户有一个角色，一个角色可以有多个用户    }}

using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace Model{    public class Roles    {        public virtual int rolesID { get; set; }        public virtual string RolesName { get; set; }                public virtual IList<Users> UserList { get; set; }//一个用户有一个角色，一个角色可以有多个用户        public virtual IList<Permission> permissionList { get; set; }//用户角色与权限是多对多关系    }}

using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace Model{    public class Permission    {        public virtual int permissionID { get; set; }        public virtual string PermissionName { get; set; }        public virtual IList<Roles> rolesList { get; set; }//用户角色与权限是多对多关系    }}

<?xml version="1.0" encoding="utf-8" ?><hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="Model" namespace="Model">    <class name="Model.Users, Model" table="P_Users">        <id name="userID" column="userID" type="int" >            <generator class="native" />        </id>        <property name="uname" column="uname" type="string" length="50" not-null="true"/>        <many-to-one name="roles" column="RoleID" />    </class></hibernate-mapping>

<?xml version="1.0" encoding="utf-8" ?><hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="Model" namespace="Model">    <class name="Model.Roles, Model" table="P_Roles">        <id name="rolesID" column="rolesID" type="int" >            <generator class="native" />        </id>        <property name="RolesName" column="RolesName" type="string" length="50" not-null="true"/>                <!--Bag：对象集合，每个元素可以重复。例如{1,2,2,6,0,0}，在.Net中相当于IList或者IList<T>            实现。            Set：对象集合，每个元素必须唯一。例如{1,2,5,6}，在.Net中相当于ISet或者ISet<T>                实现，Iesi.Collections.dll程序集提供ISet集合。            List：整数索引对象集合，每个元素可以重复。例如{{1,"YJingLee"},{2,"CnBlogs"},{3,"LiYongJing"}}，在.Net中相当于ArraryList或者List<T>                实现。            Map：键值对集合。例如{{"YJingLee",5},{"CnBlogs",7},{"LiYongJing",6}}，在.Net中相当于HashTable或者IDictionary<Tkey,TValue>                实现。        -->        <bag name="UserList" inverse="true" cascade="all-delete-orphan" table="P_Users">            <key column="rolesID" foreign-key="FK_user_role"/>            <one-to-many class="Model.Users, Model" />        </bag>        <bag name="permissionList" table="P_Role_Permission">            <key column="rolesID" foreign-key="FK_role_permission"/>            <many-to-many class="Permission" column="permissionID"/>        </bag>    </class></hibernate-mapping>

<?xml version="1.0" encoding="utf-8" ?><hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="Model" namespace="Model">    <class name="Model.Permission, Model" table="P_Permission">        <id name="permissionID" column="permissionID" type="int" >            <generator class="native" />        </id>        <property name="RolesName" column="RolesName" type="string" length="50" not-null="true"/>                <bag name="rolesList" table="P_Role_Permission">            <key column="permissionID" foreign-key="FK_role_permission"/>            <many-to-many class="Roles" column="rolesID"/>        </bag>    </class></hibernate-mapping>