[Hibernate] How to let hibernate use my own DataSource?

Before I use hibernate,I haven written a datasource connection.Now I want to use that datasource.but I don't konw how to config hibernate.   I know sf.openSession(conn);   When session.close().the connection is close? Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software

[Hibernate] When I run demo.bat ,some error message display.

I'm using hibernate 2.03,when I run demo.bat in hibernate root directory.Some error displayed:     Exception in thread "main" java.lang.NoClassDefFoundError: net/sf/cglib/KeyFactory    at net.sf.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:297)    at net.sf.hibernate.cfg.Confi