namespace Domain
{
    public class Product
    {
        public virtual int Id { get; set; }
        public virtual string Name { get; set; }
        public virtual decimal UnitPrice { get; set; }
    }
}

<?xml version="1.0" encoding="utf-8" ?>

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="Domain" namespace="Domain">
  <class name="Product" table="T_Product" lazy="true" >
    <id name="Id" column="Id" type="int" >
      <generator class="native" />
    </id>

    <property name="Name" type="string">
      <column name="Name" length="50"/>
    </property>

    <property name="UnitPrice" type="decimal">
      <column name="UnitPrice" precision="14" scale="2"/>
    </property>

  </class>
</hibernate-mapping>

<?xml version="1.0" encoding="utf-8"?>
<!-- 
This template was written to work with NHibernate.Test.
Copy the template to your NHibernate.Test project folder and rename it in hibernate.cfg.xml and change it 
for your own use before compile tests in VisualStudio.
-->
<!-- This is the System.Data.dll provider for SQL Server -->
<hibernate-configuration  xmlns="urn:nhibernate-configuration-2.2" >
  <session-factory>
    <property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
    <property name="connection.connection_string">
      server=.;database=NHibernateDemo;uid=sa;pwd=love;
    </property>
    <property name="adonet.batch_size">10</property>
    <property name="show_sql">true</property>
    <property name="dialect">NHibernate.Dialect.MsSql2012Dialect</property>
    <property name="command_timeout">60</property>
    <property name="hbm2ddl.auto">update</property>
    <property name="query.substitutions">true 1, false 0, yes ‘Y‘, no ‘N‘</property>
    <mapping assembly="Domain"/>
  </session-factory>
</hibernate-configuration>

class Program
{
    static void Main(string[] args)
    {
        var cfg = new NHibernate.Cfg.Configuration().Configure("Config/hibernate.cfg.xml");
        //必须要写，否则无法反射
        using (ISessionFactory sessionFactory = cfg.BuildSessionFactory())
        {

        }
        Console.WriteLine("ok");
        Console.ReadKey();
    }
}