public class Department {    private Long id;    private Set<User> users = new HashSet<User>();    private Department parent;    private Set<Department> children = new HashSet<Department>();    private String name;    private String description;}

public class Role {    private Long id;    private String name;    private String description;    private Set<User> users = new HashSet<User>();}

public class User {    private Long id;    private Department department;    private Set<Role> roles = new HashSet<Role>();    private String loginName; // 登录名    private String password; // 密码    private String name; // 真实姓名    private String gender; // 性别    private String phoneNumber; // 电话号码    private String email; // 电子邮件    private String description; // 说明}

<?xml version="1.0"?><!DOCTYPE hibernate-mapping PUBLIC        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><hibernate-mapping package="cn.itcast.oa.domain">    <class name="Department" table="itcast_department">        <id name="id">            <generator class="native" />        </id>        <property name="name" />        <property name="description" />        <!-- users属性，本类与User的一对多 -->        <set name="users">            <key column="departmentId"></key>            <one-to-many class="User" />        </set>        <!-- parent属性，本类与Department（上级）的多对一 -->        <many-to-one name="parent" class="Department" column="parentId"></many-to-one>        <!-- children属性，本类与Department（下级）的一对多 -->        <set name="children">            <key column="parentId"></key>            <one-to-many class="Department" />        </set>    </class></hibernate-mapping>

<?xml version="1.0"?><!DOCTYPE hibernate-mapping PUBLIC        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><hibernate-mapping package="cn.itcast.oa.domain">    <class name="Role" table="itcast_role">        <id name="id">            <generator class="native"/>        </id>        <property name="name"/>        <property name="description"/>                <!-- users属性，本类与User的多对多 -->        <set name="users" table="itcast_user_role">            <key column="roleId"></key>            <many-to-many class="User" column="userId"></many-to-many>        </set>            </class>    </hibernate-mapping>

<?xml version="1.0"?><!DOCTYPE hibernate-mapping PUBLIC        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><hibernate-mapping package="cn.itcast.oa.domain">    <class name="User" table="itcast_user">        <id name="id">            <generator class="native"/>        </id>        <property name="loginName"/>        <property name="password"/>        <property name="name"/>        <property name="gender" />        <property name="phoneNumber"/>        <property name="email"/>        <property name="description"/>                <!-- department属性，本类与Department的多对一 -->        <many-to-one name="department" class="Department" column="departmentId"></many-to-one>        <!-- roles属性，本类与Role的多对多 -->        <set name="roles" table="itcast_user_role">            <key column="userId"></key>            <many-to-many class="Role" column="roleId"></many-to-many>        </set>            </class>    </hibernate-mapping>

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"    xmlns:tx="http://www.springframework.org/schema/tx"    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd                http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd                http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">    <!-- 自动扫描与装配bean -->    <context:component-scan base-package="cn.itcast.oa"></context:component-scan>    <!-- 加载外部的properties配置文件 -->    <context:property-placeholder location="classpath:jdbc.properties"/>    <!-- 配置数据库连接池（c3p0） -->    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">        <!-- 基本信息 -->        <property name="jdbcUrl" value=http://www.mamicode.com/"${jdbcUrl}"></property>        <property name="driverClass" value=http://www.mamicode.com/"${driverClass}"></property>        <property name="user" value=http://www.mamicode.com/"${username}"></property>        <property name="password" value=http://www.mamicode.com/"${password}"></property>        <!-- 其他配置 -->        <!--初始化时获取三个连接，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->        <property name="initialPoolSize" value=http://www.mamicode.com/"3"></property>        <!--连接池中保留的最小连接数。Default: 3 -->        <property name="minPoolSize" value=http://www.mamicode.com/"3"></property>        <!--连接池中保留的最大连接数。Default: 15 -->        <property name="maxPoolSize" value=http://www.mamicode.com/"5"></property>        <!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->        <property name="acquireIncrement" value=http://www.mamicode.com/"3"></property>        <!-- 控制数据源内加载的PreparedStatements数量。如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。Default: 0 -->        <property name="maxStatements" value=http://www.mamicode.com/"8"></property>        <!-- maxStatementsPerConnection定义了连接池内单个连接所拥有的最大缓存statements数。Default: 0 -->        <property name="maxStatementsPerConnection" value=http://www.mamicode.com/"5"></property>        <!--最大空闲时间,1800秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->        <property name="maxIdleTime" value=http://www.mamicode.com/"1800"></property>    </bean>        <!-- 配置SessionFactory -->    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">        <property name="dataSource" ref="dataSource"></property>        <property name="configLocation" value=http://www.mamicode.com/"classpath:hibernate.cfg.xml"></property>    </bean>    <!-- 配置声明式的事务管理（采用基于注解的方式） -->    <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">        <property name="sessionFactory" ref="sessionFactory"></property>    </bean>    <tx:annotation-driven transaction-manager="transactionManager"/>    </beans>

<!DOCTYPE hibernate-configuration PUBLIC    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"    "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"><hibernate-configuration><session-factory>    <!-- 数据库信息（连接信息写到spring的配置文件中） -->    <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>    <!--         <property name="connection.url">jdbc:mysql:///itcastoa_20120216</property>        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>        <property name="connection.username">root</property>        <property name="connection.password">root</property>    -->    <!-- 其他配置 -->    <property name="show_sql">true</property>    <property name="hbm2ddl.auto">update</property>    <!-- 导入映射配置 -->    <mapping resource="cn/itcast/oa/domain/User.hbm.xml" />    <mapping resource="cn/itcast/oa/domain/Department.hbm.xml" />    <mapping resource="cn/itcast/oa/domain/Role.hbm.xml" /></session-factory></hibernate-configuration>

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"    "http://struts.apache.org/dtds/struts-2.0.dtd"><struts>    <!-- 配置为开发模式 -->    <constant name="struts.devMode" value=http://www.mamicode.com/"true" />    <!-- 配置扩展名为action -->    <constant name="struts.action.extension" value=http://www.mamicode.com/"action" />    <package name="default" namespace="/" extends="struts-default">                <!-- 测试用的action，当与Spring整合后，class属性写的就是Spring中bean的名称 -->        <action name="test" class="testAction">            <result name="success">/test.jsp</result>        </action>        <!-- 岗位管理 -->        <action name="roleAction_*" class="roleAction" method="{1}">            <result name="list">/WEB-INF/jsp/roleAction/list.jsp</result>            <result name="addUI">/WEB-INF/jsp/roleAction/addUI.jsp</result>            <result name="editUI">/WEB-INF/jsp/roleAction/editUI.jsp</result>            <result name="toList" type="redirectAction">roleAction_list</result>        </action>                    </package></struts>