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状況：すべての人を休憩サービスとして取得しようとしています。しかし、問題は、クラスPersonが自分で人を持っているということです（Friends）。だから私はのみの友人のユーザ名を取得していますことを双方向オブジェクトで休憩サービスをする
`{"naam":"Lance","voornaam":"ADAM","email":"[email protected]","password":"fxSg1vSa2zzqHxuTCrDSbtp9ITlHf9ALSnS/ENFXfAA=$7vSVqz5nHZ7cEA4u6OiTBDw+CGaOJkhun4YuievZCKc=","username":"adam","status":"online","posts":[{"message":"Ik heb mijn eerste auto gekocht.","mood":"trots","when":1494603638834},"role":"ADMIN","friends":[{"username":"adamsFriend1"},{"username":"adamsFriend2"}]
：だから私は
は、結果は私が目指していた...友人接続の原因、無限に長いJSONを取得しています。これが不可能な場合は、それらの友人をexcecludeする方法はありますか？
Restcontroller：
@RestController
@RequestMapping(value = "/users")
public class UsersRestController {
private final Service service;
public UsersRestController(@Autowired Service service) {
this.service = service;
}
@RequestMapping(method = RequestMethod.GET)
public List<Person> getUsers() {
return service.getAllPersons();
}
@RequestMapping(value = "/{id}", method = RequestMethod.GET)
public Person getUser(@PathVariable String id) {
return service.getPerson(id);
}
}
Personクラス：
@Entity
public class Person {
private String naam, voornaam, email, password;
@Id
private String username;
private String status;
@ManyToMany
private Collection<Person> vrienden;
@OneToMany(orphanRemoval = true)
private Collection<Post> posts;
@Enumerated(EnumType.STRING)
private Role role;
public Person(String naam, String voornaam, String email, String password, String username) {
setNaam(naam);
setEmail(email);
setStatus("online");
setVoornaam(voornaam);
setPassword(password);
setUsername(username);
vrienden = new HashSet<>();
posts = new HashSet<>();
role = Role.USER;
}
public static void addFriend(Person a, Person b) {
a.addFriend(b);
b.addFriend(a);
}
private void addFriend(Person b) {
this.vrienden.add(b);
}
public static void deleteFriend(Person a, Person b) {
a.deleteFriend(b);
b.deleteFriend(a);
}
private void deleteFriend(Person a) {
this.vrienden.remove(a);
}
public Collection<Person> getFriends() {
return vrienden;
}
public Role getRole() {
return this.role;
}
public void setRole(Role role) {
this.role = role;
}
@NotNull(message = "{error.no.name}")
@Size(min = 2, message = "{error.invalid.namesize}")
public String getNaam() {
return naam;
}
public void setNaam(String naam) {
this.naam = naam;
}
@NotNull(message = "{error.no.surnaam}")
@Size(min = 2, message = "{error.invalid.surnamesize}")
public String getVoornaam() {
return voornaam;
}
public void setVoornaam(String voornaam) {
this.voornaam = voornaam;
}
@NotNull(message = "{error.no.email}")
@Email(message = "{error.invalid.email}")
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
@NotNull(message = "{error.no.status}")
@Size(min = 1, message = "{error.no.valid.status}")
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
@NotNull(message = "{error.no.username}")
@Size(min = 2, message = "{error.invalid.usernamesize}")
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public void setPassword(String password) {
this.password = Password.getSaltedHash(password);
}
public boolean isPasswordCorrect(String password) {
boolean result = false;
result = Password.check(password, this.password);
return result;
}
@NotNull(message = "{error.no.password}")
@Size(min = 2, message = "{error.invalid.usernamesize}")
public String getPassword() {
return this.password;
}
public void addPost(Post p) {
if (p == null) {
throw new DomainException("Post is null");
}
posts.add(p);
}
public void deletePost(Post p) {
if (p == null) {
throw new DomainException("Post is null");
}
posts.remove(p);
}
public Collection<Post> getPosts() {
return posts;
}
@Override
public int hashCode() {
int hash = 3;
hash = 59 * hash + Objects.hashCode(this.username);
return hash;
}
public void setHashedPassword(String password) {
this.password = password;
}
}