我一直在尝试在两个实体（团队和竞赛）之间创建@ManyToMany关系，但是当我尝试发布到竞赛控制器API时，我得到了一个错误415

Failed to evaluate Jackson deserialization for type [[simple type, class com.project.Contest.Contest]]: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot handle managed/back reference 'defaultReference': back reference type (`java.util.List<com.project.Contest.Contest>`) not compatible with managed type (com.project.Contest.Contest)

团队：

@Getter
@Setter
@NoArgsConstructor
@AllArgsConstructor
@Entity
@Table(name = "team")
public class Team {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private long id;

    @JsonBackReference
    //@JsonIdentityInfo(generator = ObjectIdGenerators.PropertyGenerator.class , property = "id")
    @ManyToMany(mappedBy = "teams", cascade = CascadeType.PERSIST)
    private List<Contest> contests;

    private String name;

    private int wins, losses;

}

竞赛：

@Getter
@Setter
@NoArgsConstructor
@AllArgsConstructor
@Entity
@Table(name = "contest")
public class Contest {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private long id;

    private String name;

    @ManyToMany(cascade = CascadeType.PERSIST)
    @JsonManagedReference
    //@JsonIdentityInfo(generator = ObjectIdGenerators.PropertyGenerator.class , property = "id")
    @JoinTable(
            name = "team_contest",
            inverseJoinColumns = @JoinColumn(name = "team_id"),
            joinColumns = @JoinColumn( name = "contest_id")
    )
    private List<Team> teams;

    @ManyToMany(cascade = CascadeType.PERSIST)
    @JsonManagedReference
    //@JsonIdentityInfo(generator = ObjectIdGenerators.PropertyGenerator.class , property = "id")
    @JoinTable(
            name = "contest_user",
            joinColumns = @JoinColumn(name = "contest_id"),
            inverseJoinColumns = @JoinColumn( name = "user_id")
    )
    private List<User> users;

}

我发现我可以使用@JsonIdentityInfo（生成器=对象标识生成器.属性生成器.类，property ="id"）而不是@JsonBackReference和@JsonManagedReference，这对我很有帮助，因为它让我可以发布到数据库，但随后我又遇到了无法检索比赛的问题。因为两个对象都有对彼此的引用，所以它创建了某种无限循环以到达第二个对象的引用（contest. teams [1]）它需要显示contest. teams [0]对contest和soo forth的引用。请帮助〈3