@Entity
@Table(name = "user")
public class User {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Column(name = "username")
private String username;
// Getters and setters
}
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/mydatabase</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">password</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<mapping class="com.example.User"/>
</session-factory>
</hibernate-configuration>
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
Session session = sessionFactory.openSession();
Transaction tx = session.beginTransaction();
try {
User user = new User();
user.setUsername("John Doe");
session.save(user);
tx.commit();
} catch (Exception e) {
if (tx != null) {
tx.rollback();
}
} finally {
session.close();
sessionFactory.close();
}
