How to get the video id from a YouTube URL with regex in Java

Question

Porting from javascript answer to Java version JavaScript REGEX: How do I get the YouTube video id from a URL?

Answer 1

Figured this question wasn't here for Java, in case you need to do it in Java here's a way

public static String extractYTId(String ytUrl) {     String vId = null;     Pattern pattern = Pattern.compile(                      "^https?://.*(?:youtu.be/|v/|u/\\w/|embed/|watch?v=)([^#&?]*).*$",                       Pattern.CASE_INSENSITIVE);     Matcher matcher = pattern.matcher(ytUrl);     if (matcher.matches()){         vId = matcher.group(1);     }     return vId; } 

Works for URLs like (also for https://...)

http://www.youtube.com/watch?v=0zM4nApSvMg&feature=feedrec_grec_index http://www.youtube.com/user/SomeUser#p/a/u/1/QDK8U-VIH_o http://www.youtube.com/v/0zM4nApSvMg?fs=1&hl=en_US&rel=0 http://www.youtube.com/watch?v=0zM4nApSvMg#t=0m10s http://www.youtube.com/embed/0zM4nApSvMg?rel=0 http://www.youtube.com/watch?v=0zM4nApSvMg http://youtu.be/0zM4nApSvMg 

Answer 2

Previous answers don't work for me.. It's correct method. It works with www.youtube.com and youtu.be links.

private String getYouTubeId (String youTubeUrl) {     String pattern = "(?<=youtu.be/|watch\\?v=|/videos/|embed\\/)[^#\\&\\?]*";     Pattern compiledPattern = Pattern.compile(pattern);     Matcher matcher = compiledPattern.matcher(youTubeUrl);     if(matcher.find()){         return matcher.group();     } else {         return "error";       } }