Javascript Youtube API v3中的内容详细信息、持续时间和统计信息存在问题
我正在尝试检索每个视频的Javascript Youtube API v3中的内容详细信息、持续时间和统计信息存在问题,javascript,jquery,youtube-api,youtube-data-api,Javascript,Jquery,Youtube Api,Youtube Data Api,我正在尝试检索每个视频的duration和viewCount值,都在videos:list api下。我创建了一个单独的函数,它将返回每个视频的持续时间和统计信息。唯一有效的是在getPlaylist(…)功能中检索到的视频播放列表和videoId。我登录到控制台,这是我得到的: console.log("id: " + videoId + " duration: " + vidDuration + " viewCount: " + viewCount); // return value in
duration
和viewCount
值,都在videos:list api下。我创建了一个单独的函数,它将返回每个视频的持续时间和统计信息。唯一有效的是在getPlaylist(…)
功能中检索到的视频播放列表和videoId
。我登录到控制台,这是我得到的:
console.log("id: " + videoId + " duration: " + vidDuration + " viewCount: " + viewCount); // return value in console
id:xxx持续时间:未定义视图计数:未定义
我从来没有得到工作的持续时间,但是我注意到带有part:statistics
的api将从注释掉的通道中检索视图计数总和的值。但这不是我要找的。我希望它能够与每个视频一起使用:
GEThttps://www.googleapis.com/youtube/v3/videos
但由于某种原因,我不能让它工作。我有videoId
属性和参数,因此playlid可以读取它并检索视频持续时间和查看计数的所述值,但它仍然未定义,即使定义了videoId
。哦,警报对话框也没有出现
我错过了什么
脚本:
var channelName = 'ExampleChannel';
var vidWidth = 500;
var vidHeight = 400;
var vidResults = 15; /* # of videos to show at once - max 50 */
var vidDuration = "";
var viewCount = 0;
var videoId = "";
$(document).ready(function() {
$.get( // get channel name and load data
"https://www.googleapis.com/youtube/v3/channels",
{
part: 'contentDetails',
forUsername: channelName,
key: 'XXXXXXXXXX'
},
function(data)
{
$.each(data.items,
function(i, item) {
console.log(item); // log all items to console
var playlistId = item.contentDetails.relatedPlaylists.uploads;
//var viewCount = console.log(item.statistics.viewCount);
getPlaylists(playlistId);
})
}
);
// function that gets the playlists
function getPlaylists(playlistId)
{
$.get(
"https://www.googleapis.com/youtube/v3/playlistItems",
{
part: 'snippet',
maxResults: vidResults,
playlistId: playlistId,
key: 'XXXXXXXXXX'
},
// print the results
function(data)
{
var output;
$.each(data.items,
function(i, item) {
console.log(item);
var vidTitle = item.snippet.title; // video title
var vidDesc = item.snippet.description; // video description
var videoId = item.snippet.resourceId.videoId; // video id
// check if description is empty
if(vidDesc == null || vidDesc == "")
{
vidDesc = "No description was written."; // FIX: test msg to see where it still shows up
$('#desc').remove(); // remove video description
}
else vidDesc = item.snippet.description;
vidDuration = getVideoDuration(videoId);
viewCount = getViewCount(videoId);
console.log("id: " + videoId + " duration: " + vidDuration + " viewCount: " + viewCount); // return value in console
output = '<li><iframe height="' + vidHeight + '" width="' + vidWidth + '" src=\"//www.youtube.com/embed/' + videoId + '\"></iframe></li><div id="title">' + vidTitle + '</div><div id="desc">' + vidDesc + '</div><div id="duration">Length: ' + vidDuration + '</div><div id="stats">View Count: ' + viewCount + '</div>';
// Append results to list tag
$('#results').append(output);
})
}
);
}
// return video duration
function getVideoDuration(videoId)
{
$.get(
"https://www.googleapis.com/youtube/v3/videos",
{
part: 'contentDetails',
id: videoId,
key: 'XXXXXXXXXX',
},
function(data)
{
$.each(data.items,
function(i, item) {
//videoId = item.snippet.resourceId.videoId;
alert(item.contentDetails.duration); // video duration
//alert(videoId);
})
}
);
}
// return video view count
function getViewCount(videoId)
{
$.get(
"https://www.googleapis.com/youtube/v3/videos",
{
part: 'contentDetails, statistics',
id: videoId,
key: 'XXXXXXXXXX',
},
function(data)
{
$.each(data.items,
function(i, item) {
//videoId = item.snippet.resourceId.videoId;
alert(item.statistics.viewCount); // view count
//alert(videoId);
})
}
);
}
});
var channelName='ExampleChannel';
可变宽度=500;
高度=400;
var vidResults=15;/*#一次显示的视频数量-最多50个*/
var vidDuration=“”;
var viewCount=0;
var videoId=“”;
$(文档).ready(函数(){
$.get(//获取通道名称并加载数据
"https://www.googleapis.com/youtube/v3/channels",
{
第部分:“内容详细信息”,
forUsername:channelName,
关键字:“XXXXXXXXX”
},
功能(数据)
{
$。每个(数据项,
职能(一、项目){
console.log(item);//将所有项目记录到控制台
var playlaid=item.contentDetails.relatedPlaylists.uploads;
//var viewCount=console.log(item.statistics.viewCount);
获取播放列表(播放ID);
})
}
);
//获取播放列表的函数
功能获取播放列表(播放ID)
{
美元(
"https://www.googleapis.com/youtube/v3/playlistItems",
{
部分:'代码片段',
maxResults:vidResults,
playlid:playlid,
关键字:“XXXXXXXXX”
},
//打印结果
功能(数据)
{
var输出;
$。每个(数据项,
职能(一、项目){
控制台日志(项目);
var vidTitle=item.snippet.title;//视频标题
var vidDesc=item.snippet.description;//视频描述
var videoId=item.snippet.resourceId.videoId;//视频id
//检查描述是否为空
if(vidDesc==null | | vidDesc==“”)
{
vidDesc=“没有编写任何描述。”;//修复:测试消息以查看它仍然显示在何处
$('#desc').remove();//删除视频描述
}
else vidDesc=item.snippet.description;
vidDuration=getVideoDuration(videoId);
viewCount=getViewCount(videoId);
log(“id:+videoId+”持续时间:+VideoDuration+”viewCount:+viewCount);//在控制台中返回值
输出=''+vidTitle+''+vidDesc+'长度:'+vidDuration+'视图计数:'+viewCount+'';
//将结果附加到列表标记
$(“#结果”)。追加(输出);
})
}
);
}
//返回视频持续时间
函数getVideoDuration(videoId)
{
美元(
"https://www.googleapis.com/youtube/v3/videos",
{
第部分:“内容详细信息”,
id:videoId,
键:“XXXXXXXXX”,
},
功能(数据)
{
$。每个(数据项,
职能(一、项目){
//videoId=item.snippet.resourceId.videoId;
警报(item.contentDetails.duration);//视频持续时间
//警报(videoId);
})
}
);
}
//返回视频视图计数
函数getViewCount(videoId)
{
美元(
"https://www.googleapis.com/youtube/v3/videos",
{
第部分:“内容详细信息、统计”,
id:videoId,
键:“XXXXXXXXX”,
},
功能(数据)
{
$。每个(数据项,
职能(一、项目){
//videoId=item.snippet.resourceId.videoId;
警报(item.statistics.viewCount);//视图计数
//警报(videoId);
})
}
);
}
});
截图:(更新)
因为调用这些函数时,您不会等待函数完成。 您需要在Javascript中使用 我对你的代码做了一点修改(用我的api密钥测试) 说明:
var channelName = 'ExampleChannel';
var vidWidth = 500;
var vidHeight = 400;
var vidResults = 15; /* # of videos to show at once - max 50 */
var vidDuration = "";
var viewCount = 0;
var videoId = "";
$(document).ready(function() {
$.get( // get channel name and load data
"https://www.googleapis.com/youtube/v3/channels",
{
part: 'contentDetails',
forUsername: channelName,
key: 'XXXXXXXXXX'
},
function(data)
{
$.each(data.items,
function(i, item) {
console.log(item); // log all items to console
var playlistId = item.contentDetails.relatedPlaylists.uploads;
//var viewCount = console.log(item.statistics.viewCount);
getPlaylists(playlistId);
})
}
);
// function that gets the playlists
function getPlaylists(playlistId)
{
$.get(
"https://www.googleapis.com/youtube/v3/playlistItems",
{
part: 'snippet',
maxResults: vidResults,
playlistId: playlistId,
key: 'XXXXXXXXXX'
},
// print the results
function(data)
{
var output;
$.each(data.items,
function(i, item) {
console.log(item);
var vidTitle = item.snippet.title; // video title
var vidDesc = item.snippet.description; // video description
var videoId = item.snippet.resourceId.videoId; // video id
// check if description is empty
if(vidDesc == null || vidDesc == "")
{
vidDesc = "No description was written."; // FIX: test msg to see where it still shows up
$('#desc').remove(); // remove video description
}
else vidDesc = item.snippet.description;
vidDuration = getVideoDuration(videoId);
viewCount = getViewCount(videoId);
console.log("id: " + videoId + " duration: " + vidDuration + " viewCount: " + viewCount); // return value in console
output = '<li><iframe height="' + vidHeight + '" width="' + vidWidth + '" src=\"//www.youtube.com/embed/' + videoId + '\"></iframe></li><div id="title">' + vidTitle + '</div><div id="desc">' + vidDesc + '</div><div id="duration">Length: ' + vidDuration + '</div><div id="stats">View Count: ' + viewCount + '</div>';
// Append results to list tag
$('#results').append(output);
})
}
);
}
// return video duration
function getVideoDuration(videoId)
{
$.get(
"https://www.googleapis.com/youtube/v3/videos",
{
part: 'contentDetails',
id: videoId,
key: 'XXXXXXXXXX',
},
function(data)
{
$.each(data.items,
function(i, item) {
//videoId = item.snippet.resourceId.videoId;
alert(item.contentDetails.duration); // video duration
//alert(videoId);
})
}
);
}
// return video view count
function getViewCount(videoId)
{
$.get(
"https://www.googleapis.com/youtube/v3/videos",
{
part: 'contentDetails, statistics',
id: videoId,
key: 'XXXXXXXXXX',
},
function(data)
{
$.each(data.items,
function(i, item) {
//videoId = item.snippet.resourceId.videoId;
alert(item.statistics.viewCount); // view count
//alert(videoId);
})
}
);
}
});
调用函数getVideoDuration
和.done
告诉函数getVideoDuration
在我们解析承诺时将返回一个结果(dfrd1.resolve(r);
)。同时函数返回dfrd1.promise()代码>表示结果将被延迟。
当承诺得到解决时,我们进入done
,剩下的事情我们可以做:)
你在照片上看到了什么
getVideoDuration(videoId).done(function(r)