hbnutil.java

加拿大达内科技有限公司配需java程序员的上课时的代码

package com.sd0709.bank.util;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HbnUtil {
  private static SessionFactory sf;
  static{

	try {
		sf = new Configuration()
			           .configure()
			           .buildSessionFactory();
		System.out.println("sf -> "+sf);
	} catch (HibernateException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
  }
  public static Session getSession(){
	Session s = null;
	if(sf!=null && !sf.isClosed()){
			s = sf.openSession();
	}
	return s;
  }
  
  public static void releaseSession(Session s){
	  if(s!=null && s.isOpen()) s.close();
  }
  
  public static void clearSessionFactory(){
	  if(sf!=null && !sf.isClosed()) sf.close();
  }
  
  
  
  
  
}