@Entity
@Table(name = "customers")
public class Customer {
@Id
private int id;
@Column(name = "name")
private String name;
// Getters and setters
}
public class HibernateUtil {
private static final SessionFactory sessionFactory;
static {
try {
Configuration configuration = new Configuration().configure();
configuration.addAnnotatedClass(Customer.class);
ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
.applySettings(configuration.getProperties()).build();
sessionFactory = configuration.buildSessionFactory(serviceRegistry);
} catch (Throwable ex) {
System.err.println("Failed to create sessionFactory object." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
}
public class Main {
public static void main(String[] args) {
SessionFactory sessionFactory = HibernateUtil.getSessionFactory();
Session session = sessionFactory.openSession();
Transaction tx = null;
try {
tx = session.beginTransaction();
Customer customer = new Customer();
customer.setId(1);
customer.setName("John Doe");
session.save(customer);
tx.commit();
} catch (HibernateException e) {
if (tx != null) tx.rollback();
e.printStackTrace();
} finally {
session.close();
}
}
}
