java.net

Class URLDecoder

java.lang.Object

java.net.URLDecoder

public class URLDecoder
extends Object

This class is used to decode a string which is encoded in the application/x-www-form-urlencoded MIME content type.

Constructor Summary

Constructors

Constructor and Description
URLDecoder()

Method Summary

Modifier and Type	Method and Description
static String	decode(String s) Deprecated. Use decode(String, String) instead.
static String	decode(String s, Charset charset) Decodes an application/x-www-form-urlencoded string using a specific Charset.
static String	decode(String s, String charsetName) Decodes the argument which is assumed to be encoded in the x-www-form-urlencoded MIME content type, assuming the given charsetName.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

URLDecoder

public URLDecoder()

Method Detail

decode

@Deprecated
public static String decode(String s)

Deprecated. Use decode(String, String) instead.

Decodes the argument which is assumed to be encoded in the x-www-form-urlencoded MIME content type.

'+' will be converted to space, '%' and two following hex digit characters are converted to the equivalent byte value. All other characters are passed through unmodified. For example "A+B+C %24%25" -> "A B C $%".

Parameters:

s - the encoded string.

Returns:

the decoded clear-text representation of the given string.

decode

public static String decode(String s,
                            String charsetName)
                     throws UnsupportedEncodingException

Decodes the argument which is assumed to be encoded in the x-www-form-urlencoded MIME content type, assuming the given charsetName. '

+' will be converted to space, '%' and two following hex digit characters are converted to the equivalent byte value. All other characters are passed through unmodified. For example "A+B+C %24%25" -> "A B C $%".

Throws:

UnsupportedEncodingException - if charsetName is not supported.

decode

public static String decode(String s,
                            Charset charset)

Decodes an application/x-www-form-urlencoded string using a specific Charset. The supplied charset 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 incompatibilities.

Parameters:

s - the String to decode

charset - the given charset

Returns:

the newly decoded String

Throws:

NullPointerException - if s or charset is null

IllegalArgumentException - if the implementation encounters illegal characters

Since:

10

See Also:

URLEncoder.encode(java.lang.String, java.nio.charset.Charset)