如何在自定义页面中使用 HATEOAS

Question

我正在使用 Spring Boot 创建一个 Web 服务。我正在尝试将 HATEOAS 引入端点。这是模型（DTO）：public class MovieResponse {    private Long id;    private String name;    private Date releaseDate;    private Time runtime;    private Float rating;    private String storyline;    private String poster;    private String rated;    private Date createdAt;    private List<GenreResponse> genres = new ArrayList<>();    private List<MovieMediaResponse> videos = new ArrayList<>();    private List<MovieMediaResponse> photos = new ArrayList<>();    private List<MovieReviewResponse> reviews = new ArrayList<>();    private List<MovieCelebrityResponse> cast = new ArrayList<>();    private List<MovieCelebrityResponse> writers = new ArrayList<>();    private List<MovieCelebrityResponse> directors = new ArrayList<>();    // Getters & Setters}我还有一个PagedResponse包含页面信息的：public class PagedResponse<T> {    private List<T> content;    private int page;    private int size;    private long totalElements;    private int totalPages;    private boolean last;    public PagedResponse() {}    public PagedResponse(List<T> content, int page, int size, long totalElements, int totalPages, boolean last) {        this.content = content;        this.page = page;        this.size = size;        this.totalElements = totalElements;        this.totalPages = totalPages;        this.last = last;    }    // Getters & Setters}我getAllMovies在服务中也有返回PagedResponse<MovieResponse>.得到以下错误：无法解析方法“toResource(com.movies.mmdb.util.PagedResponse, com.movies.mmdb.controller.MovieResourceAssembler)”在这一行： return ResponseEntity.ok(this.pagedAssembler.toResource(response, this.movieResourceAssembler));我认为在我传递变量时toResource接受. org.springframework.data.domain.Page;responsePagedResponse我该如何解决？

Answer 1

如果toResource方法接收 aPage<T>作为第一个参数，那么为什么不使用该数据类型？如果你需要扩展 Page 那么你的类应该实现这样的接口来实现方法签名：

public class PagedResponse<T> implements Page<MovieResponse>