How to get youtube video id from URL with java?

Question

I want to get the v=id from youtube\'s URL with java

Example Youtube URL formats:

http://www.youtube.com/watch?v=u8nQa1cJyX8&

Answer 1

You can use regex I've created:

 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

Used snippet base from this answer: 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 = "" + (url.match(regex) || [0, 0, 'No ID present'])[1] + "";

    // 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;
}