使用YouTube API获取频道的所有视频
我想要获得我拥有其Id的单个频道的所有视频。 我只能获取频道信息的问题。 这是我正在使用的链接：
https://gdata.youtube.com/feeds/api/users/UCdCiB_pNQpR0M_KkDG4Dz5A?v=2&alt=json&q=goal&orderby=published&max-results=10
该链接适用于现已退役的V2 API，因此不会返回任何数据。 相反，你会想要使用API的V3。 您需要做的第一件事就是注册一个API密钥 - 您可以通过在console.developers.google.com上创建一个项目，将YouTube数据API设置为“on”并创建一个公共访问密钥。
由于您已经拥有自己的用户频道ID，因此您可以直接从中获取视频; 但请注意，如果您不知道频道ID，则可以通过以下方式获得：
https://www.googleapis.com/youtube/v3/channels?part=snippet&forUsername={username}&key={YOUR_API_KEY}
通过频道ID，您可以使用搜索终端从频道获取所有视频，如下所示：
https://www.googleapis.com/youtube/v3/search?order=date&part=snippet&channelId={channel id here}&maxResults=25&key={YOUR_API_KEY}
在这种情况下，按日期排序与按“已发布”排序的旧V2参数相同。
还有很多其他参数可用于在搜索频道时检索视频; 有关更多详细信息，请参阅https://developers.google.com/youtube/v3/docs/search/list。
我以为我会用JavaScript分享我的最终结果。 它使用Google YouTube API密钥和用户名获取频道ID，然后将视频拖到列表中并显示给定的div标签。
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>YouTube Channel Listing</title>
<script type="text/javascript">
function getJSONData(yourUrl) {
var Httpreq = new XMLHttpRequest();
try {
Httpreq.open("GET", yourUrl, false);
Httpreq.send(null);
} catch (ex) {
alert(ex.message);
}
return Httpreq.responseText;
}
function showVideoList(username, writediv, maxnumbervideos, apikey) {
try {
document.getElementById(writediv).innerHTML = "";
var keyinfo = JSON.parse(getJSONData("https://www.googleapis.com/youtube/v3/channels?part=snippet&forUsername=" + username + "&key=" + apikey));
var userid = keyinfo.items[0].id;
var channeltitle = keyinfo.items[0].snippet.title;
var channeldescription = keyinfo.items[0].snippet.description;
var channelthumbnail = keyinfo.items[0].snippet.thumbnails.default.url; // default, medium or high
//channel header
document.getElementById(writediv).innerHTML += "<div style='width:100%;min-height:90px;'>"
+ "<a href='https://www.youtube.com/user/" + username + "' target='_blank'>"
+ "<img src='" + channelthumbnail + "' style='border:none;float:left;margin-right:10px;' alt='" + channeltitle + "' title='" + channeltitle + "' /></a>"
+ "<div style='width:100%;text-align:center;'><h1><a href='https://www.youtube.com/user/" + username + "' target='_blank'>" + channeltitle + "</a></h1>" + channeldescription + "</div>"
+ "</div>";
var videoinfo = JSON.parse(getJSONData("https://www.googleapis.com/youtube/v3/search?order=date&part=snippet&channelId=" + userid + "&maxResults=" + maxnumbervideos + "&key=" + apikey));
var videos = videoinfo.items;
var videocount = videoinfo.pageInfo.totalResults;
// video listing
for (var i = 0; i < videos.length; i++) {
var videoid = videos[i].id.videoId;
var videotitle = videos[i].snippet.title;
var videodescription = videos[i].snippet.description;
var videodate = videos[i].snippet.publishedAt; // date time published
var videothumbnail = videos[i].snippet.thumbnails.default.url; // default, medium or high
document.getElementById(writediv).innerHTML += "<hr /><div style='width:100%;min-height:90px;'>"
+ "<a href='https://www.youtube.com/watch?v=" + videoid + "' target='_blank'>"
+ "<img src='" + videothumbnail + "' style='border:none;float:left;margin-right:10px;' alt='" + videotitle + "' title='" + videotitle + "' /></a>"
+ "<h3><a href='https://www.youtube.com/watch?v=" + videoid + "' target='_blank'>" + videotitle + "</a></h3>" + videodescription + ""
+ "</div>";
}
} catch (ex) {
alert(ex.message);
}
}
</script>
</head>
<body>
<div id="videos"></div>
<script type="text/javascript">
showVideoList("USER_NAME", "videos", 25, "YOUR_API_KEY");
</script>
</body>
</html>
ADDITION - 我还写了一个函数来处理，如果您使用的是通道ID而不是基于UserName的帐户。
代码如下：
function showVideoListChannel(channelid, writediv, maxnumbervideos, apikey) {
try {
document.getElementById(writediv).innerHTML = "";
var vid = getJSONData("https://www.googleapis.com/youtube/v3/search?order=date&part=snippet&channelId=" + channelid + "&maxResults=" + (maxnumbervideos + 1) + "&key=" + apikey);
var videoinfo = JSON.parse(vid);
var videos = videoinfo.items;
var videocount = videoinfo.pageInfo.totalResults;
var content = "<div style='height:600px;overflow-y:auto;'>";
for (var i = 0; i < videos.length - 1; i++) {
var videoid = videos[i].id.videoId;
var videotitle = videos[i].snippet.title;
var videodescription = videos[i].snippet.description;
var videodate = videos[i].snippet.publishedAt; // date time published
var newdate = new Date(Date.parse((videodate + " (ISO 8601)").replace(/ *(.*)/, "")));
var min = newdate.getMinutes();
if (min < 10) {
min = "0" + min;
}
if (newdate.getHours() > 12) {
newdate = newdate.getMonth() + 1 + "/" + newdate.getDate() + "/" + newdate.getFullYear() + " " + (newdate.getHours() - 12) + ":" + min + " PM";
} else if (newdate.getHours() == 12) {
newdate = newdate.getMonth() + 1 + "/" + newdate.getDate() + "/" + newdate.getFullYear() + " " + newdate.getHours() + ":" + min + " PM";
} else {
newdate = newdate.getMonth() + 1 + "/" + newdate.getDate() + "/" + newdate.getFullYear() + " " + newdate.getHours() + ":" + min + " AM";
}
var videothumbnail = videos[i].snippet.thumbnails.default.url; // default, medium or high
content += "<hr /><div style='width:100%;min-height:90px;'>"
+ "<a href='https://www.youtube.com/watch?v=" + videoid + "' target='_blank'>"
+ "<img src='" + videothumbnail + "' style='border:none;float:left;margin-right:10px;' alt='" + videotitle + "' title='" + videotitle + "' /></a>"
+ "<h3><a href='https://www.youtube.com/watch?v=" + videoid + "' target='_blank'>" + videotitle + "</a></h3>" + videodescription + "<br />"
+ "<span style='color:#738AAD;font-size:Small;'>" + newdate + "</span>"
+ "</div>";
}
content += "</div>";
document.getElementById(writediv).innerHTML = content;
} catch (ex) {
alert(ex.message);
}
}
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