Question

我正在尝试使用YouTube Java SDK通过ID获取youtube video的所有评论。

起初，我通过设置403 Request had insufficient authentication scopes的授权范围得到了solved，即YouTubeScopes.YOUTUBE_FORCE_SSL。

但是当该错误消失后，空的注释列表始终返回到CommentListResponse commentsResponse对象。

这是我程序的输出：

Initializing client...
Client initialized. Retrieving videos...
Video data: ID=LbhFO3im6vo; Title=Java. Maven просто и понятно. Зависимости (Dependencies). Скоупы (Scopes). Модули (Modules) - L6
Comments (0):
Operation finished...

这是我的Java代码：

public class VideoDataExporter {
    private static final String APPLICATION_NAME = "EvgMel-YouTubeDataExporter/1.0";

    private static final java.io.File DATA_STORE_DIR =
            new java.io.File(System.getProperty("user.home"), ".youtube-tmp-store/youtube_sample");

    private static DataStoreFactory dataStoreFactory;

    private static HttpTransport httpTransport;

    private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();

    private static YouTube client;

    public static void main(String[] args) {
        try {
            System.out.println("Initializing client...");
            httpTransport = GoogleNetHttpTransport.newTrustedTransport();
            dataStoreFactory = new FileDataStoreFactory(DATA_STORE_DIR);

            Credential credential = authorize();
            client = new YouTube.Builder(httpTransport, JSON_FACTORY, credential)
                    .setApplicationName(APPLICATION_NAME)
                    .build();

        } catch (IOException e) {
            System.err.println(e.getMessage());
            System.exit(1);
        } catch (Throwable t) {
            t.printStackTrace();
            System.exit(1);
        }

        System.out.println("Client initialized. Retrieving videos...");
        String videoId = "LbhFO3im6vo";

        try {
            VideoListResponse videos = client.videos().list("snippet").setId(videoId).execute();
            List<Video> items = videos.getItems();

            if (items.size() > 0) {
                Video v = items.get(0);
                VideoSnippet s = v.getSnippet();

                System.out.println(
                        String.format("Video data: ID=%s; Title=%s", v.getId(), s.getTitle())
                );

                CommentListResponse commentsResponse = client.comments().list("snippet")
                        .setId(videoId)
                        .setMaxResults(100L)
                        .execute();

                List<Comment> comments = commentsResponse.getItems();
                System.out.println(String.format("Comments (%d):", comments.size()));

                for (Comment c: comments) {
                    CommentSnippet cs = c.getSnippet();
                    System.out.println(
                            String.format(
                                    "ID=%s; Text=%s; AuthorName=%s; AuthorChannel=%s",
                                    c.getId(),
                                    cs.getTextDisplay(),
                                    cs.getAuthorDisplayName(),
                                    cs.getAuthorChannelUrl()
                            )
                    );
                }
            } else {
                System.out.println("No video was found by " + videoId);
            }
        } catch (IOException e) {
            e.printStackTrace();
            System.exit(1);
        }

        System.out.println("Operation finished...");
    }

    private static Credential authorize() throws Exception {
        // load client secrets
        GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY,
                new InputStreamReader(VideoDataExporter.class.getResourceAsStream("/client_secrets.json")));

        if (clientSecrets.getDetails().getClientId().startsWith("Enter")
                || clientSecrets.getDetails().getClientSecret().startsWith("Enter ")) {
            System.out.println("Enter Client ID and Secret from https://code.google.com/apis/console/");
            System.exit(1);
        }

        // set up authorization code flow
        GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
                httpTransport, JSON_FACTORY, clientSecrets,
                List.of(YouTubeScopes.YOUTUBE_FORCE_SSL)
        )
                .setDataStoreFactory(dataStoreFactory)
                .build();
        // authorize
        return new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("user");
    }
}

我检查了配额，一切正常。但是评论仍然是空的。预先感谢您的帮助！

YouTube Java SDK返回空评论列表

0 个答案: