Extracting URLs from a text document using Java + Regular Expressions

Question

I\'m trying to create a regular expression to extract URLs from text documents using Java, but thus far I\'ve been unsuccessful. The two cases I\'m looking to capture are li

Answer 1

This link has very good URL RegExs (they are surprisingly hard to get right, by the way - thinh http/https; port #s, valid characters, GET strings, pound signs for anchor links, etc...)

http://flanders.co.nz/2009/11/08/a-good-url-regular-expression-repost/

Perl has CPAN libraries that contain cannedRegExes, including for URLs. Not sure about Java though :(