package hibernate;

import java.sql.SQLException;
import org.hibernate.Session;

public class UserAccess 
{
	public static void addUser(User user) throws SQLException 
	{
		Session session = null;
		try 
		{
			System.out.println("1");
			session = HibernateUtil.getSessionFactory().openSession();
			System.out.println("2");
			session.beginTransaction();
			System.out.println("3");
			System.out.println("id = " + session.save(user));
			System.out.println("4");
			session.getTransaction().commit();
			System.out.println("5");
		} 
		catch (Exception e) 
		{
			System.out.println("Error \"addUser\". Exception: " + e.getMessage());
		} 
		finally 
		{
			if (session != null && session.isOpen()) 
				session.close();
		}
	}
	
	public static User getUserById(Long id) throws SQLException 
	{
		Session session = null;
		User user = null;
		try 
		{
			System.out.println("1");
			session = HibernateUtil.getSessionFactory().openSession();
			System.out.println("2");
			user = (User)session.load(User.class, id);
			System.out.println("3" + user.getName());
		} 
		catch (Exception e) 
		{
			System.out.println("Error \"getUserById\". Exception: " + e.getMessage());
		} 
		finally 
		{
			if (session != null && session.isOpen()) 
				session.close();
		}
		return user;
	}

}

package hibernate;

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

public class HibernateUtil 
{
	private static final SessionFactory sessionFactory;
	static 
	{
		try 
		{
			sessionFactory = new Configuration().configure().buildSessionFactory();
		} 
		catch (Throwable ex) 
		{
			System.err.println("Initial SessionFactory creation failed." + ex);
			throw new ExceptionInInitializerError(ex);
		}
	}
    public static SessionFactory getSessionFactory() 
    {
      return sessionFactory;
    }
}

package hibernate;

public class User 
{
	private long id;
	private String name;
	private String surname;
	private String patronymic;
	
	public User(){}
	public User(long id, String name, String surname, String patronymic)
	{
		this.id = id;
		this.name = name;
		this.surname = surname;
		this.patronymic = patronymic;
	}	
	public void setId(long id)
	{
		this.id = id;
	}
	public void setName(String name)
	{
		this.name = name;
	}
	public void setSurname(String surname)
	{
		this.surname = surname;
	}
	public void setPatronymic(String patronymic)
	{
		this.patronymic = patronymic;
	}
	
	public long getId()
	{
		return this.id;
	}
	public String getName()
	{
		return this.name;
	}
	public String getSurname()
	{
		return this.surname;
	}
	public String getPatronymic()
	{
		return this.patronymic;
	}
}