最近在折腾NHibernate,所以和大家分享一些东东
配置NHibernate有三种常见的配置方法。
1:在web.config,App.config里面配置
<?xml version="1.0" encoding="utf-8" ?> <configuration> <!-- Add this element --> <configSections> <section name="hibernate-configuration" type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate" /> </configSections> <!-- Add this element --> <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2"> <session-factory> <property name="dialect">NHibernate.Dialect.MsSql2005Dialect</property> <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property> <property name="connection.connection_string">Server=TLSZ207\SQLEXPRESS;initial catalog=Test;Integrated Security=true</property> </session-factory> </hibernate-configuration> <!-- Leave the system.web section unchanged --> <system.web> </system.web> </configuration>
NHibernate.Cfg.Configuration cfg = new NHibernate.Cfg.Configuration();
这种配置方法将会到应用程序配置文件(App.Config,Web.Config)中查找NHibernate的配置信息.
2:hibernate.cfg.xml
建立名为hibernate.cfg.xml的文件。实例化Configuration config = new Configuration().Configure();这样NHibernate将会在目录下寻找hibernate.cfg.xml的配置文件。
hibernate.cfg.xml的格式
<?xml version="1.0" encoding="utf-8" ?> <hibernate-configuration xmlns="urn:nhibernate-configuration-2.0" > <session-factory name="MySessionFactory"> <property name="dialect">NHibernate.Dialect.MsSql2005Dialect</property> <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property> <property name="connection.connection_string">Server=TLSZ207\SQLEXPRESS;initial catalog=Test;Integrated Security=true</property> </session-factory> </hibernate-configuration>
Configuration config = new Configuration().Configure(configFileName);
这种配置方法将查找指定的Hibernate标准配置文件,可以是绝对路径或者相对路径。还可以通过编码的方式来添加配置信息:
IDictionary props = new Hashtable();
props[“dialect”] = "NHibernate.Dialect.MsSql2005Dialect";
...
Configuration cfg = new Configuration();
cfg.Properties = props;//cfg.AddProperties(props);
映射文件:
所有的XML映射都需要使用nhibernate-mapping-2.0 schema。目前的schema可以在NHibernate的资源路径或者是NHibernate.dll的嵌入资源(Embedded Resource)中找到。NHibernate总是会优先使用嵌入在资源中的schema文件。你可以将hibernate-mapping拷贝到 C:\Program Files\Microsoft Visual Studio .NET 2003\Common7\Packages\schemas\xml路径中,以获得智能感知功能。
<?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" namespace="Test" assembly="Test"> <class name="Test.Cat,Test" table="Cat"> <id name="CatID"> <column name="CatID" sql-type="char(32)" not-null="true"/> <generator class="uuid.hex" /> </id> <property name="Name"> <column name="Name" length="16" not-null="true" /> </property> <property name="Sex" /> <property name="Weight" /> </class> </hibernate-mapping>