@Entity
@Table(name = "USERS", schema = "UR")
@Data
@AllArgsConstructor
@NoArgsConstructor
@Builder
@IdClass(UserIdEntity.class)
public class UserEntity {
@SequenceGenerator(
name = "sequence_name",
sequenceName = "SEQ_USER_ID",
allocationSize = 1,
schema = "AR")
@GeneratedValue(generator = "SEQ_USER_ID")
@Column(name = "USER_ID", length = 8,unique = true ,columnDefinition = "BIGINT" )
@NotNull
@Id
private BigInteger userId;
@Id
@Column(name = "USER_NUM")
@NotNull
private String userNum;
@Id
@Column(name = "USER_CD")
@NotNull
private String userCd;
@NotNull
@Column(name = "USER_ADDR")
private String userAddr;
}
@NoArgsConstructor
@AllArgsConstructor
@Data
public class UserIdEntity implements Serializable {
@NotNull
private BigInteger userId;
@Column(name = "USER_NUM" ,length = 5) @NotNull private String userNum;
@Column(name = "USER_CD",length = 5)  @NotNull private String userCd;
}
this is calling through service class
{userRepository.save(UserEntity)}

我试图插入用户记录，但它没有发生，而更新正在发生，没有任何关注通过做一些研究，它指出，与JPA复合键有一些挑战，而做插入，所以有人请让我知道我错过了什么。每次当我调试准备好的语句时，在执行插入时，它调用合并而不是保存bcoz JPA将其作为具有更新值的实体，而不是新插入即使userId是3个主键中的一个是null，而其余2个PK具有默认值。我也尝试通过临时变量将userId设置为新的，但没有运气。

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