Regular expression to match URLs in Java

by

Try the following regex string instead. Your test was probably done in a case-sensitive manner. I have added the lowercase alphas as well as a proper string beginning placeholder.

String regex = "^(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]";

This works too:

String regex = "\\b(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]";

Note:

String regex = "<\\b(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]>"; // matches <http://google.com>

String regex = "<^(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]>"; // does not match <http://google.com>

More Related Contents:

  1. Character class subtraction, converting from Java syntax to RegexBuddy
  2. Find the highest number between two literal strings using a Regular Expression
  3. How to parse a string that contains value only needed partially to an arraylist? [closed]
  4. How to split a string, but also keep the delimiters?
  5. Match multiline text using regular expression
  6. Regex to match a C-style multiline comment
  7. Regex for matching something if it is not preceded by something else
  8. Splitting a string at every n-th character
  9. How to extract numbers from a string and get an array of ints?
  10. Java regex capturing groups indexes
  11. regex: How to escape backslashes and special characters?
  12. Regex to find whole words
  13. Check and extract a number from a String in Java
  14. Can I replace groups in Java regex?
  15. How to add features missing from the Java regex implementation?
  16. Is Java RegEx case-insensitive?
  17. Java String.split() sometimes giving blank strings
  18. Constructing regex pattern to match sentence
  19. pattern.matcher() vs pattern.matches()
  20. How to handle requests that includes forward slashes (/)?
  21. String.split() *not* on regular expression?
  22. java string split on all non-alphanumeric except apostrophes
  23. Find the first occurrence with Regex
  24. Java String ReplaceAll method giving illegal repetition error?
  25. Can java.util.regex.Pattern do partial matches?
  26. Find all words with 3 letters with regex
  27. String.replaceAll is considerably slower than doing the job yourself
  28. Remove all occurrences of \ from string
  29. Extract ip addresses from Strings using regex
  30. Validate if input string is a number between 0-255 using regex

Leave a Comment