如何通过jpa使用现有的db2序列

import javax.persistence.*;

@Entity
@Table(name = "your_table")
public class YourEntity {
    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "your_sequence")
    @SequenceGenerator(name = "your_sequence", sequenceName = "your_db2_sequence")
    private Long id;

    // Other fields and methods
}

// 在使用JPA进行操作时，可以通过EntityManager来执行数据库操作
EntityManager entityManager = entityManagerFactory.createEntityManager();

// 创建实体对象
YourEntity entity = new YourEntity();

// 执行持久化操作
entityManager.getTransaction().begin();
entityManager.persist(entity);
entityManager.getTransaction().commit();

// 关闭EntityManager和EntityManagerFactory
entityManager.close();
entityManagerFactory.close();