org.apache.commons.validator

Class UrlValidator

java.lang.Object

org.apache.commons.validator.UrlValidator

All Implemented Interfaces:

java.io.Serializable

public class UrlValidator
extends java.lang.Object
implements java.io.Serializable

Validates URLs.

Behavour of validation is modified by passing in options:

ALLOW_2_SLASHES - [FALSE] Allows double '/' characters in the path component. NO_FRAGMENT- [FALSE] By default fragments are allowed, if this option is included then fragments are flagged as illegal. ALLOW_ALL_SCHEMES - [FALSE] By default only http, https, and ftp are considered valid schemes. Enabling this option will let any scheme pass validation.

Originally based in on php script by Debbie Dyer, validation.php v1.2b, Date: 03/07/02, http://javascript.internet.com. However, this validation now bears little resemblance to the php original.

   Example of usage:
   Construct a UrlValidator with valid schemes of "http", and "https".

    String[] schemes = {"http","https"}.
    UrlValidator urlValidator = new UrlValidator(schemes);
    if (urlValidator.isValid("ftp://foo.bar.com/")) {
       System.out.println("url is valid");
    } else {
       System.out.println("url is invalid");
    }

    prints "url is invalid"
   If instead the default constructor is used.

    UrlValidator urlValidator = new UrlValidator();
    if (urlValidator.isValid("ftp://foo.bar.com/")) {
       System.out.println("url is valid");
    } else {
       System.out.println("url is invalid");
    }

   prints out "url is valid"
  

Since:

Validator 1.1

See Also:

Uniform Resource Identifiers (URI): Generic Syntax , Serialized Form