Spring Data Rest OneToMany POST JSON包含子实体

@Entity
public class Parent {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String name;

    @OneToMany(mappedBy = "parent", cascade = CascadeType.ALL)
    private List<Child> children;

    // 省略构造函数、getter和setter方法
}

@Entity
public class Child {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String name;

    @ManyToOne
    @JoinColumn(name = "parent_id")
    private Parent parent;

    // 省略构造函数、getter和setter方法
}

@RepositoryRestController
@RequestMapping("/parents")
public class ParentController {
    private final ParentRepository parentRepository;

    public ParentController(ParentRepository parentRepository) {
        this.parentRepository = parentRepository;
    }

    @PostMapping
    public ResponseEntity<?> createParent(@RequestBody Parent parent) {
        parentRepository.save(parent);
        return ResponseEntity.created(URI.create("/parents/" + parent.getId())).build();
    }
}

{
  "name": "Parent 1",
  "children": [
    {
      "name": "Child 1"
    },
    {
      "name": "Child 2"
    }
  ]
}