java 如何使用java从URL获取youtube视频ID？
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How to get youtube video id from URL with java?
提问by Er KK Chopra
I want to get the v=id from youtube's URL with java
我想用 java 从 youtube 的 URL 中获取 v=id
Example Youtube URL formats:
Youtube URL 格式示例：
http://www.youtube.com/watch?v=u8nQa1cJyX8&a=GxdCwVVULXctT2lYDEPllDR0LRTutYfWhttp://www.youtube.com/watch?v=u8nQa1cJyX8http://youtu.be/0zM3nApSvMghttp://www.youtube.com/user/IngridMichaelsonVEVO#p/a/u/1/KdwsulMb8EQhttp://youtu.be/dQw4w9WgXcQhttp://www.youtube.com/embed/dQw4w9WgXcQhttp://www.youtube.com/v/dQw4w9WgXcQhttp://www.youtube.com/e/dQw4w9WgXcQhttp://www.youtube.com/watch?v=dQw4w9WgXcQhttp://www.youtube.com/?v=dQw4w9WgXcQhttp://www.youtube.com/watch?feature=player_embedded&v=dQw4w9WgXcQhttp://www.youtube.com/?feature=player_embedded&v=dQw4w9WgXcQhttp://www.youtube.com/user/IngridMichaelsonVEVO#p/u/11/KdwsulMb8EQhttp://www.youtube-nocookie.com/v/6L3ZvIMwZFM?version=3&hl=en_US&rel=0
http://www.youtube.com/watch?v=u8nQa1cJyX8&a=GxdCwVVULXctT2lYDEPllDR0LRTutYfW http://www.youtube.com/watch?v=u8nQa1cJyX8 http://youtu.be/0zM3nApSvMg http://www.youtube.com /user/IngridMichaelsonVEVO#p/a/u/1/KdwsulMb8EQ http://youtu.be/dQw4w9WgXcQ http://www.youtube.com/embed/dQw4w9WgXcQ http://www.youtube.com/v/dQw4w9WgXcQ http ://www.youtube.com/e/dQw4w9WgXcQ http://www.youtube.com/watch?v=dQw4w9WgXcQ http://www.youtube.com/?v=dQw4w9WgXcQ http://www.youtube.com /watch?feature=player_embedded&v=dQw4w9WgXcQ http://www.youtube.com/?feature=player_embedded&v=dQw4w9WgXcQ http://www.youtube.com/user/IngridMichaelsonVEVO#p/u/11/KdwsulMb8EQhttp://www.youtube-nocookie.com/v/6L3ZvIMwZFM?version=3&hl=en_US&rel=0
or any other youtube format what contains a video id in the url
或任何其他在 url 中包含视频 ID 的 youtube 格式
I am Trying with that :-
我正在尝试：-
Pattern compiledPattern = Pattern.compile("(?<=v=).*?(?=&|$)",Pattern.CASE_INSENSITIVE);
Matcher matcher = compiledPattern.matcher(sourceUrl);
if(matcher.find()){
setVideoId(matcher.group());
}
It is not working only for one URL :-
它不仅适用于一个 URL :-
采纳答案by Er KK Chopra
I found solution for this .. i expand that URL.. and its working ..
我找到了解决方案..我扩展了那个 URL.. 和它的工作..
public static String expandUrl(String shortenedUrl) {
URL url;
String expandedURL = "";
try {
url = new URL(shortenedUrl);
// open connection
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection(Proxy.NO_PROXY);
// stop following browser redirect
httpURLConnection.setInstanceFollowRedirects(false);
// extract location header containing the actual destination URL
expandedURL = httpURLConnection.getHeaderField("Location");
httpURLConnection.disconnect();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return expandedURL;
}
回答by Jakki
The code below will extract the video ids for the following type of urls.
下面的代码将提取以下类型的 url 的视频 ID。
http://www.youtube.com/watch?v=dQw4w9WgXcQ&a=GxdCwVVULXctT2lYDEPllDR0LRTutYfW
http://www.youtube.com/watch?v=dQw4w9WgXcQ
http://youtu.be/dQw4w9WgXcQ
http://www.youtube.com/embed/dQw4w9WgXcQ
http://www.youtube.com/v/dQw4w9WgXcQ
http://www.youtube.com/e/dQw4w9WgXcQ
http://www.youtube.com/watch?v=dQw4w9WgXcQ
http://www.youtube.com/watch?feature=player_embedded&v=dQw4w9WgXcQ
http://www.youtube-nocookie.com/v/6L3ZvIMwZFM?version=3&hl=en_US&rel=0
String pattern = "(?<=watch\?v=|/videos/|embed\/|youtu.be\/|\/v\/|\/e\/|watch\?v%3D|watch\?feature=player_embedded&v=|%2Fvideos%2F|embed%\u200C\u200B2F|youtu.be%2F|%2Fv%2F)[^#\&\?\n]*";
Pattern compiledPattern = Pattern.compile(pattern);
Matcher matcher = compiledPattern.matcher(url); //url is youtube url for which you want to extract the id.
if (matcher.find()) {
return matcher.group();
}
回答by Mohammad Jafar Mashhadi
6UW3xuJinEg(i mean the string after youtu.be/) is the ID most of the time. But for being more sure you can send HTTP GET request to that URL and it will respond you with a HTTP302 redirect response where you can find the actual redirection URL. you can parse that URL your previous code.
6UW3xuJinEg（我的意思是youtu.be/)之后的字符串在大多数情况下是 ID。但是为了更确定您可以向该 URL 发送 HTTP GET 请求，它会以 HTTP302 重定向响应响应您，您可以在其中找到实际的重定向 URL。您可以解析该 URL 您以前的代码。
To send and recieve that request and response you can use libraries like jsoup. but because it's just a simple GET request you can simply use java sockets.
要发送和接收该请求和响应，您可以使用像 jsoup 这样的库。但是因为它只是一个简单的 GET 请求，所以您可以简单地使用 java 套接字。
Connect to youtube.beon 80 port and write this in output stream:
连接到youtube.be80 端口并将其写入输出流：
GET /6UW3xuJinEg HTTP/1.1
# Don't forget the blank lines
回答by Kyo Huu
private String getYouTubeId(String youTubeUrl) {
String pattern = "https?://(?:[0-9A-Z-]+\.)?(?:youtu\.be/|youtube\.com\S*[^\w\-\s])([\w\-]{11})(?=[^\w\-]|$)(?![?=&+%\w]*(?:['\"][^<>]*>|</a>))[?=&+%\w]*";
Pattern compiledPattern = Pattern.compile(pattern,
Pattern.CASE_INSENSITIVE);
Matcher matcher = compiledPattern.matcher(youTubeUrl);
if (matcher.find()) {
return matcher.group(1);
}
return null;
}
Use this method, it works in most case that return Null in above answers. cases tested:
使用此方法，它在大多数情况下都有效，在上述答案中返回 Null。测试案例：
https://m.youtube.com/watch?feature=youtu.be&v=ROkXM3csNWY
https://www.youtube.com/watch?v=rie69P0W668
https://m.youtube.com/watch?feature=youtu.be&v=JqyzwbpYYqc
https://www.youtube.com/watch?v=YPln3JP_gKs&feature=youtu.be
回答by Alex Smith
You can use regex I've created:
您可以使用我创建的正则表达式：
public static String YOUTUBE_PATTERN_ID = "^(?:(?:\w*.?://)?\w*.?\w*-?.?\w*/(?:embed|e|v|watch|.*/)?\??(?:feature=\w*\.?\w*)?&?(?:v=)?/?)([\w\d_-]+).*";
Pattern matcher = Pattern.compile(YOUTUBE_PATTERN_ID).matcher(url)
if (matcher.find()) {
return matcher.group(1)
}
https://regex101.com/r/b0yMMd/1
https://regex101.com/r/b0yMMd/1
Used snippet base from this answer: https://stackoverflow.com/a/35436389/7138308
使用此答案中的片段库：https: //stackoverflow.com/a/35436389/7138308
var regex = /^(?:(?:\w*.?:\/\/)?\w*.?\w*\-?.?\w*\/(?:embed|e|v|watch|.*\/)?\??(?:feature=\w*\.?\w*)?\&?(?:v=)?\/?)([\w\d_-]+).*/i;
// An array of all the youtube URLs
var youtubeLinks = [
'http://www.youtube.com/watch?v=u8nQa1cJyX8&a=GxdCwVVULXctT2lYDEPllDR0LRTutYfW ',
'http://www.youtube.com/watch?v=u8nQa1cJyX-8 ',
'http://youtu.be/0zM3nApSvMg ',
'http://www.youtube.com/user/IngridMichaelsonVEVO#p/a/u/1/KdwsulMb8EQ ',
'http://youtu.be/dQw4w9WgXcQ ',
'http://www.youtube.com/embed/dQw4w9WgXcQ ',
'http://www.youtube.com/v/dQw4w9WgXcQ ',
'http://www.youtube.com/e/dQw4w9WgXcQ ',
'http://www.youtube.com/watch?v=dQw4w9WgXcQ ',
'http://www.youtube.com/?v=dQw4w9WgXcQ ',
'http://www.youtube.com/watch?feature=player_embedded&v=dQw4w9WgXcQ ',
'http://www.youtube.com/?feature=player_embedded&v=dQw4w9WgXcQ ',
'http://www.youtube.com/user/IngridMichaelsonVEVO#p/u/11/KdwsulMb8EQ ',
'http://www.youtube-nocookie.com/v/6L3ZvIMwZFM?version=3&hl=en_US&rel=0 ',
'https://m.youtube.com/watch?feature=youtu.be&v=ROkXM3csNWY ',
'https://www.youtube.com/watch?v=rie69P0W668 ',
'https://m.youtube.com/watch?feature=youtu.be&v=JqyzwbpYYqc ',
'https://www.youtube.com/watch?v=YPln3JP_gKs&feature=youtu.be ',
'https://www.youtube.com/watch?v=l-kX8Z4u0Kw&list=PLhml-dmiPOedRDLV8n1ro_OTdzKjOdlyp'
];
// An object to store the results
var youtubeIds = {};
// Iterate over the youtube URLs
youtubeLinks.forEach(function(url) {
// Get the value of second captured group to extract youtube ID
var id = "<span class='youtubeId'>" + (url.match(regex) || [0, 0, 'No ID present'])[1] + "</span>";
// Add the URL and the extracted ID in the result object
youtubeIds[url] = id;
});
// Log the object in the browser console
console.log(youtubeIds);
// To show the result on the page
document.getElementById('output').innerHTML = JSON.stringify(youtubeIds, 0, 4);.youtubeId {
color: green;
font-weight: bold;
}<pre id="output"></pre>回答by The Finest Artist
Try this code here.
在这里试试这个代码。
// (?:youtube(?:-nocookie)?\.com\/(?:[^\/\n\s]+\/\S+\/|(?:v|e(?:mbed)?)\/|\S*?[?&]v=)|youtu\.be\/)([a-zA-Z0-9_-]{11})
final static String reg = "(?:youtube(?:-nocookie)?\.com\/(?:[^\/\n\s]+\/\S+\/|(?:v|e(?:mbed)?)\/|\S*?[?&]v=)|youtu\.be\/)([a-zA-Z0-9_-]{11})";
public static String getVideoId(String videoUrl) {
if (videoUrl == null || videoUrl.trim().length() <= 0)
return null;
Pattern pattern = Pattern.compile(reg, Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(videoUrl);
if (matcher.find())
return matcher.group(1);
return null;
}
You can find my whole parser code from here https://github.com/TheFinestArtist/YouTubePlayerActivity/blob/master/library/src/main/java/com/thefinestartist/ytpa/utils/YoutubeUrlParser.java
你可以从这里找到我的整个解析器代码 https://github.com/TheFinestArtist/YouTubePlayerActivity/blob/master/library/src/main/java/com/thefinestartist/ytpa/utils/YoutubeUrlParser.java
This is useful open source I made to play Youtube Video. https://github.com/TheFinestArtist/YouTubePlayerActivity
这是我用来播放 Youtube Video 的有用开源。 https://github.com/TheFinestArtist/YouTubePlayerActivity
