JPA entity 使用繼承關係時,發生 Cannot use identity column key generation with mapping for: {class xxxx} 如何解決

先定義Root(父類) 的表如下

@SuppressWarnings("serial")
@Entity
@Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
public abstract class AbsEnum implements Serializable {

  private Integer id;
  private String name;
  private String enName;
  private Integer operatorId;
  private Date updatedAt;
  
  
  @Id
  @Column(nullable = false, columnDefinition = JpaConstant.COLUMN_DEFIN_ID)
  @GeneratedValue(strategy = GenerationType.TABLE)
  public Integer getId() {
    return id;
  }

  public void setId(Integer id) {
    this.id = id;
  }

  public String getName() {
    return name;
  }

  public void setName(String name) {
    this.name = name;
  }

  public String getEnName() {
    return enName;
  }

  public void setEnName(String enName) {
    this.enName = enName;
  }

  public Integer getOperatorId() {
    return operatorId;
  }

  public void setOperatorId(Integer operatorId) {
    this.operatorId = operatorId;
  }

  public Date getUpdatedAt() {
    return updatedAt;
  }

  public void setUpdatedAt(Date updatedAt) {
    this.updatedAt = updatedAt;
  }

}

記得把 Id 一定要設定成  GenerationType.TABLE

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