Get domain name from URL in Java/Android [duplicate]

Question

In my app, I need to get the favicon.ico from a URL. (eg. "http://google.com/favicon.ico"). Users can input all kinds of URLs, and I need only the domain name.

Examples:

http://drive.google.com/bla/bla/bla -> drive.google.com

www.facebook.com/lol -> www.facebook.com

192.168.0.1 -> 192.168.0.1 (but not really necessary)

Does anyone have a method to get this? Thanks!

can't you wrap it in a Url object and use the getHost() method? — peshkira
– peshkira, Commented Apr 16, 2014 at 20:36

John Deverall · Accepted Answer · 2016-07-30 16:26:21Z

43

Try using something like

String u = "www.facebook.com/lol";
URL url = new URL(u);
String host = url.getHost(); // should be www.facebook.com

If you need different parts of the Url look at the documentation and the other getters here: http://developer.android.com/reference/java/net/URL.html

edited Jul 30, 2016 at 16:26

John Deverall

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answered Apr 16, 2014 at 20:39

peshkira

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7 Comments

hansottowirtz Over a year ago

From where should I import Url?

peshkira Over a year ago

look at doc ;) java.net.URL

cegprakash Over a year ago

This will give you malformed exception. Soln : stackoverflow.com/a/40405173/1137624

peshkira Over a year ago

@cegprakash not if you catch it. Your proposed solution won't match many valid top level domains.

David Rector Over a year ago

"Won't match man y valid top level domains..." Can someone please explain this or give an example? What domain name won't work with the code in this answer? And where does the 50% number come from for malformed URL's?

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