Question

尝试从youtube检索用户评论。代码如下：

String videoId = "3u1fu6f8Hto";
    String str = "http://gdata.youtube.com/feeds/api/videos/" + videoId + "/comments";
    YouTubeQuery youtubeQuery = new YouTubeQuery(new URL(str));

    youtubeQuery.setMaxResults(50);
    youtubeQuery.setStartIndex(1);

    String videoEntryUrl = youtubeQuery.getUrl().toString();

    VideoEntry videoEntry = service.getEntry(new URL(videoEntryUrl), VideoEntry.class);

    String myUrl = youtubeQuery.getUrl().toString();  // only another name

    CommentFeed commentFeed = service.getFeed(new URL(myUrl), CommentFeed.class); // Feed response

代码显示不兼容的类型：URL无法转换为字符串

Answer 1

要从youtube检索评论，请尝试执行以下操作：

String commentUrl = videoEntry.getComments().getFeedLink().getHref(); 

CommentFeed commentFeed = service.getFeed(new URL(commentUrl), CommentFeed.class);
   for(CommentEntry comment : commentFeed.getEntries()) {
         System.out.println(comment.getPlainTextContent());
   }

这是一个方便的链接：https://developers.google.com/youtube/2.0/developers_guide_java#Comments

使用gwt-youtube-api-1.0.3在java中从youtube中提取注释

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