I am currently facing the following scenario:
//--class user --
private ....
@OneToMany(targetEntity = UserRoles.class, mappedBy = "iduser", fetch = FetchType.LAZY)
@JsonManagedReference
private List<UserRoles> userRoleList = new ArrayList<>();
@OneToOne(targetEntity = Login.class, cascade = CascadeType.ALL)
@JoinColumn(name = "iduser", referencedColumnName = "iduser")
@JsonManagedReference
private Login login;
@ManyToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
@JoinTable(name = "n_gruppi_user", joinColumns = { @JoinColumn(name = "iduser") }, inverseJoinColumns = {
@JoinColumn(name = "idgruppo") })
@JsonManagedReference
List<Gruppi> groups = new ArrayList();
Following class:
@Entity
@Table(name = "gruppi")
@EntityListeners(AuditingEntityListener.class)
@Data
public class Gruppi implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long idgruppo;
private long iduser;
private String tipo;
private String nome_gruppo;
private String pass_gruppo;
private String email_gruppo;
private String descr_gruppo;
private Timestamp data_creazione;
@ManyToMany(mappedBy = "groups")
@JsonBackReference
List<User> users_group = new ArrayList<>();
When running the application, everything works fine and I receive https://i.stack.imgur.com/lain2.jpg However, when serializing my object of User, Jackson serializes everything except users_group due to the usage of @JsonBackReference. Yet, not using @JsonBackReference leads to circularity problems. How can I ensure that users_group is also serialized? Your help in this matter would be greatly appreciated!