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oracle.i18n.net
Class URLEncoder

java.lang.Object
oracle.i18n.net.URLEncoder

public class URLEncoder

extends Object

The URLEncoder contains a utility method for converting a String object into a MIME format called x-www-form-urlencoded format.

To convert a String object, each character is examined in turn:

• The ASCII characters 'a' through 'z', 'A' through 'Z', '0' through '9', and ".", "-", "", "_" remain the same.
• The space character ' ' is converted into a plus sign '+'.
• All other characters are converted into the 3-character string "%xy", where xy is the two-digit hexadecimal representation of the lower 8-bits of the character.

When you encode a full set of URL string, for example, http://www.acme.com/, it is troublesome to encode special meaning characters such as ':' and '/'. To avoid encoding, you can set the parameter of escResChar to false. The following characters will not be encoded:

• ; - Semicolon (U+003B)
• / - Forward slash (U+002F)
• ? - Question mark (U+003F)
• : - Colon (U+003A)
• ( - At sign (U+0040)
• & - Ampersand (U+0026)
• = - Equal sign (U+002D)
• + - Plus sign (U+002B)
• $ - Dollar sign (U+0024)
• , - Comma (U+002C)

By default, escResChar is true.

For information about URL encode/decode, see RFC 1738.

Since:

10.1.0.2

See Also:

RFC 1738

Method Summary

static String	encode(String s) Encodes a String object into x-www-form-urlencoded format using UTF-8 character set encoding.
static String	encode(String s, boolean escResChar) Encodes a String object into x-www-form-urlencoded format using UTF-8 character set encoding.
static String	encode(String s, boolean escResChar, String enc) Encodes a string object into x-www-form-urlencoded format.

Methods inherited from class java.lang.Object

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

Method Detail

encode

public static String encode(String s)

Encodes a String object into x-www-form-urlencoded format using UTF-8 character set encoding. Any reserved characters are encoded.

Parameters:

s - a String object to be encoded

Returns:

the translated String object

encode

public static String encode(String s,
                            boolean escResChar)

Encodes a String object into x-www-form-urlencoded format using UTF-8 character set encoding. escResChar determines whether it encodes the reserved characters .

Parameters:

s - a String ojbect to be translated

escResChar - determines whether to encode the reserved characters; true - encode (default), false - don't encode

Returns:

the translated String object

Throws:

IllegalStateException - if UTF-8 is not supported by JVM

encode

public static String encode(String s,
                            boolean escResChar,
                            String enc)
                     throws UnsupportedEncodingException

Encodes a string object into x-www-form-urlencoded format.

Currently AL16UTF16(also known as UTF-16BE) is not supported.

Parameters:

s - a String object to be translated

escResChar - determines whether to encode the reserved characters; true - encode (default), false - don't encode

enc - the name of an Oracle or IANA character set

Returns:

the translated String object

Throws:

UnsupportedEncodingException - if the character set is not supported

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