openSession就可以建表 用了三行代码 这样合理吗

import org.hibernate.Session;

import org.hibernate.SessionFactory;

import org.hibernate.cfg.Configuration;

import org.junit.Test;

public class TestStudents {

     @Test

     public void testCreateTable() {

         Configuration config = new Configuration().configure();

         SessionFactory sessionFactory = config.buildSessionFactory();

         Session session = sessionFactory.openSession();

     }

}