解决JPA save()方法null值覆盖掉mysql预设的默认值问题

 */
@Setter
@Getter
@Table(name = "tb_order_history")
@Entity
@Data
@DynamicInsert
public class OrderHistory implements Serializable {
    private static final long serialVersionUID = -1L;
    @Id
    @Column(name = "id")
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id; // 订单标识id
    @Column(name = "user_id")
    private Long userId; // 用户标识
    @Column(name = "channel_id")
    private Long channelId; // 渠道标识
    @Column(name = "is_active")
    private int isActive;//订单是否关闭
    @Column(name = "status")
    private OrderStatus orderStatus;// 订单状态
    @Column(name = "ctime")
    private Timestamp ctime; // 创建时间
    @Column(name = "utime",updatable = false)
    private Timestamp utime; // 更新时间
}