Java Cascade.all不使用弹簧靴和jparepository

我正在使用Jsprepository，无法使用cascade.all删除行

错误=内部服务器错误，消息=无法执行语句；SQL[n/a]；约束[null]；嵌套异常为org.hibernate.exception.ConstraintViolationException:无法执行语句

Parameter.java

Group.java

GroupService.java

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您是否尝试过删除@JsonInclude，然后再次尝试？@Rjiuk我尝试过，但没有帮助。我也会尝试设置FetchType。急于尝试，可能是因为删除了关系，所以无法加载需要删除的关系。不确定是否可以共享存储库/DAO代码？公共接口参数Repository扩展了JpaRepository{}

@Entity
@Data
@Table(name = "parameter")
@JsonInclude(JsonInclude.Include.NON_NULL)
public class Parameter {
    @Id
    @Column(name = "id")
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @JsonIgnore
    private Long id;

    @Column(name = "num")
    private Integer number;

    @Size(max = 255)
    @Column(name = "text")
    private String text;

    @Column(name = "bool")
    private Boolean bool;

    @Column(name = "date")
    @Temporal(TemporalType.TIMESTAMP)
    private Date date;

}

@Entity
@Data
@Table(name = "group_")
@NoArgsConstructor
public class Group {
    @Id
    @Column(name = "id")
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Size(max = 255)
    @Column(name = "code")
    private String code;

    @Size(max = 255)
    @Column(name = "name")
    private String name;

    @OneToOne(cascade = CascadeType.ALL, orphanRemoval = true)
    @JoinColumn(name = "parameter_id")
    private Parameter parameter;
}

@Service
public class GroupService {

    @Autowired
    private GroupRepository groupRepository;


    public void deleteGroup(Long id){
        groupRepository.deleteById(id);
    }

}