hibernate工具类封装增删改操作，简化编程

public class HibernateUtil {
    private static Configuration cfg;
    private static SessionFactory sessionFactory;

    private HibernateUtil(){}

    static{
        cfg = new Configuration();
        cfg.configure();
        sessionFactory = cfg.buildSessionFactory(new ServiceRegistryBuilder().applySettings(cfg.getProperties()).buildServiceRegistry());
    }

    public static SessionFactory getSessionFactory() {
        return sessionFactory;
    }

    public static synchronized Session getSession(){
        return sessionFactory.openSession();
    }

    /*
     * 公用增删改操作
     */

    public static boolean save(Object obj){
        Session session = null;
        Transaction trans = null;
        try{
            session = HibernateUtil.getSession();
            trans = session.beginTransaction();
            session.save(obj);
            trans.commit();
            return true;
        }catch(HibernateException e){
            if(null != trans)
                trans.rollback();
            e.printStackTrace();
        }finally{
            if(null != session)
                session.close();
        }
        return false;
    }

    public static boolean delete(Object obj){
        Session session = null;
        Transaction trans = null;
        try{
            session = HibernateUtil.getSession();
            trans = session.beginTransaction();
            session.delete(obj);
            trans.commit();
            return true;
        }catch(HibernateException e){
            if(null != trans)
                trans.rollback();
            e.printStackTrace();
        }finally{
            if(null != session)
                session.close();
        }
        return false;
    }

    public static boolean update(Object obj){
        Session session = null;
        Transaction trans = null;
        try{
            session = HibernateUtil.getSession();
            trans = session.beginTransaction();
            session.update(obj);
            trans.commit();
            return true;
        }catch(HibernateException e){
            if(null != trans)
                trans.rollback();
            e.printStackTrace();
        }finally{
            if(null != session)
                session.close();
        }
        return false;
    }
    @SuppressWarnings("rawtypes")
    public static Object get(Class clazz,Serializable id){
        Session session = null;
        Object obj = null;
        try{
            session = HibernateUtil.getSession();
            obj = session.get(clazz,id);
        }catch(HibernateException e){
            e.printStackTrace();
        }finally{
            if(null != session)
                session.close();
        }
        return obj;
    }

}

摘自 mzlqh的专栏

补充：软件开发 , Java ,