mysql保存java对象

@Entity
@Table(name = "user")
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    private String name;
    private String email;

    // Getters and Setters
}

// 保存对象
Session session = sessionFactory.openSession();
Transaction tx = session.beginTransaction();
User user = new User();
user.setName("John Doe");
user.setEmail("john.doe@example.com");
session.save(user);
tx.commit();
session.close();

try {
    // 数据库操作代码
} catch (SQLException e) {
    e.printStackTrace();
    // 根据异常信息进行处理
}

Session session = sessionFactory.openSession();
Transaction tx = null;
try {
    tx = session.beginTransaction();
    // 数据库操作代码
    tx.commit();
} catch (Exception e) {
    if (tx != null) tx.rollback();
    e.printStackTrace();
} finally {
    session.close();
}