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java.net
public class: URLDecoder [javadoc | source]
java.lang.Object
   java.net.URLDecoder
Utility class for HTML form decoding. This class contains static methods for decoding a String from the application/x-www-form-urlencoded MIME format.

The conversion process is the reverse of that used by the URLEncoder class. It is assumed that all characters in the encoded string are one of the following: "a" through "z", "A" through "Z", "0" through "9", and "-", "_", ".", and "*". The character "%" is allowed but is interpreted as the start of a special escaped sequence.

The following rules are applied in the conversion:

There are two possible ways in which this decoder could deal with illegal strings. It could either leave illegal characters alone or it could throw an java.lang.IllegalArgumentException . Which approach the decoder takes is left to the implementation.

Field Summary
static  String dfltEncName     
Method from java.net.URLDecoder Summary:
decode,   decode
Methods from java.lang.Object:
clone,   equals,   finalize,   getClass,   hashCode,   notify,   notifyAll,   toString,   wait,   wait,   wait
Method from java.net.URLDecoder Detail:
 public static String decode(String s) 
Deprecated! The - resulting string may vary depending on the platform's default encoding. Instead, use the decode(String,String) method to specify the encoding.

    Decodes a x-www-form-urlencoded string. The platform's default encoding is used to determine what characters are represented by any consecutive sequences of the form "%xy".
 public static String decode(String s,
    String enc) throws UnsupportedEncodingException 
    Decodes a application/x-www-form-urlencoded string using a specific encoding scheme. The supplied encoding is used to determine what characters are represented by any consecutive sequences of the form "%xy".

    Note: The World Wide Web Consortium Recommendation states that UTF-8 should be used. Not doing so may introduce incompatibilites.