com.google.gwt.http.client
Class URL

java.lang.Object
  com.google.gwt.http.client.URL

public final class URL
extends java.lang.Object

Utility class for the encoding and decoding URLs in their entirety or by their individual components.

Required Module

<module>
  <!-- other inherited modules, such as com.google.gwt.user.User -->
  <inherits name="com.google.gwt.http.HTTP"/>
  <!-- additional module settings -->
</module>

decode

public static java.lang.String decode(java.lang.String encodedURL)

Returns a string where all URL escape sequences have been converted back to their original character representations.

Parameters:

encodedURL - string containing encoded URL encoded sequences

Returns:

string with no encoded URL encoded sequences

Throws:

java.lang.NullPointerException - if encodedURL is null

decodeComponent

public static java.lang.String decodeComponent(java.lang.String encodedURLComponent)

Returns a string where all URL component escape sequences have been converted back to their original character representations.

Parameters:

encodedURLComponent - string containing encoded URL component sequences

Returns:

string with no encoded URL component encoded sequences

Throws:

java.lang.NullPointerException - if encodedURLComponent is null

decodeComponent

public static java.lang.String decodeComponent(java.lang.String encodedURLComponent,
                                               boolean fromQueryString)

Returns a string where all URL component escape sequences have been converted back to their original character representations.

Parameters:

encodedURLComponent - string containing encoded URL component sequences

fromQueryString - if true, +'s will be turned into spaces, otherwise they'll be kept as-is.

Returns:

string with no encoded URL component encoded sequences

Throws:

java.lang.NullPointerException - if encodedURLComponent is null

encode

public static java.lang.String encode(java.lang.String decodedURL)

Returns a string where all characters that are not valid for a complete URL have been escaped. The escaping of a character is done by converting it into its UTF-8 encoding and then encoding each of the resulting bytes as a %xx hexadecimal escape sequence.

The following character sets are not escaped by this method:

• ASCII digits or letters
• ASCII punctuation characters:

   - _ . ! ~ * ' ( )
   

• URL component delimiter characters:

   ; / ? : & = + $ , #
   

Parameters:

decodedURL - a string containing URL characters that may require encoding

Returns:

a string with all invalid URL characters escaped

Throws:

java.lang.NullPointerException - if decodedURL is null

encodeComponent

public static java.lang.String encodeComponent(java.lang.String decodedURLComponent)

Returns a string where all characters that are not valid for a URL component have been escaped. The escaping of a character is done by converting it into its UTF-8 encoding and then encoding each of the resulting bytes as a %xx hexadecimal escape sequence.

The following character sets are not escaped by this method:

• ASCII digits or letters
• ASCII punctuation characters:

  - _ . ! ~ * ' ( )

Notice that this method does encode the URL component delimiter characters:

 ; / ? : & = + $ , #
 

Parameters:

decodedURLComponent - a string containing invalid URL characters

Returns:

a string with all invalid URL characters escaped

Throws:

java.lang.NullPointerException - if decodedURLComponent is null

encodeComponent

public static java.lang.String encodeComponent(java.lang.String decodedURLComponent,
                                               boolean queryStringSpaces)

Returns a string where all characters that are not valid for a URL component have been escaped. The escaping of a character is done by converting it into its UTF-8 encoding and then encoding each of the resulting bytes as a %xx hexadecimal escape sequence.

The following character sets are not escaped by this method:

• ASCII digits or letters
• ASCII punctuation characters:

  - _ . ! ~ * ' ( )

Notice that this method does encode the URL component delimiter characters:

 ; / ? : & = + $ , #
 

Parameters:

decodedURLComponent - a string containing invalid URL characters

queryStringSpaces - if true, spaces will be encoded as +'s.

Returns:

a string with all invalid URL characters escaped

Throws:

java.lang.NullPointerException - if decodedURLComponent is null