Session中获取Connection

# session 为 org.hibernate.Session;
# sunsheen ( Session session = (DBSession) dao.getSession().getSession() )
Connection conn = session.getSessionFactory().getConnectionProvider().getConnection();
# 从Connection中获取数据库信息
DatabaseMetaData dbmd = conn.getMetaData();
#获取数据库类型
String dataBaseType = dbmd.getDatabaseProductName();