hibernate简单配置

<?xml version="1.0" encoding="GBK"?>
<!DOCTYPE hibernate-mapping
    PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Hibernate映射文件的根元素 -->
<hibernate-mapping package="com.hrsys.model">
    <class name="Employee" table="emp_table">
    <id name="id" type="integer"  column="emp_id">
        <generator class="identity" />
    </id>
    <property  name="name" column="emp_name" type="string" length="50"/>
    <property name="password" column="emp_pass" type="string" length="50" />
    <property name="salary" column="emp_salary" type="double" />
    <property name="departmentId" column="mgr_id" type="integer" />
    <property name="roleId" column="role_id" type="integer" />
    </class>
</hibernate-mapping>