Package com. using. test;
Import java. io. UnsupportedEncodingException; /**
* Encode the conversion string
*/
Public class ConverStr {
Public static void main (String [] args) throws UnsupportedEncodingException {
ConverStr test = new ConverStr ();
String str = "u9519u8befu7684u6765u6e90 ";
System. out. println ("str:" + str );
String gbk = test. toGBK (str );
System. out. println ("converted to GBK code:" + gbk );
System. out. println ();
String ascii = test. toASCII (str );
System. out. println ("converted to US-ASCII:" + ascii );
Gbk = test. changeCharset (ascii, ConverStr. US_ASCII, ConverStr. GBK );
System. out. println ("convert the ASCII code string to GBK:" + gbk );
System. out. println ();
String iso88591 = test. toISO_8859_1 (str );
System. out. println ("converted to ISO-8859-1 code:" + iso88591 );
Gbk = test. changeCharset (iso88591, ConverStr. ISO_8859_1, ConverStr. GBK );
System. out. println ("then convert the ISO-8859-1 code string into GBK code:" + gbk );
System. out. println ();
String utf8 = test. toUTF_8 (str );
System. out. println ("convert to UTF-8 code:" + utf8 );
Gbk = test. changeCharset (utf8, ConverStr. UTF_8, ConverStr. GBK );
System. out. println ("then convert the UTF-8 code string into GBK code:" + gbk );
System. out. println ();
String utf16be = test. toUTF_16BE (str );
System. out. println ("convert to UTF-16BE code:" + utf16be );
Gbk = test. changeCharset (utf16be, ConverStr. UTF_16BE, ConverStr. GBK );
System. out. println ("then convert the UTF-16BE code string into GBK code:" + gbk );
System. out. println ();
String utf16le = test. toUTF_16LE (str );
System. out. println ("convert to UTF-16LE code:" + utf16le );
Gbk = test. changeCharset (utf16le, ConverStr. UTF_16LE, ConverStr. GBK );
System. out. println ("then convert the UTF-16LE code string into GBK code:" + gbk );
System. out. println ();
String utf16 = test. toUTF_16 (str );
System. out. println ("convert to UTF-16 code:" + utf16 );
Gbk = test. changeCharset (utf16, ConverStr. UTF_16LE, ConverStr. GBK );
System. out. println ("then convert the UTF-16 code string into GBK code:" + gbk );
String s = new String ("Chinese". getBytes ("UTF-8"), "UTF-8 ");
System. out. println (s );
}
/** 7-bit ASCII characters, also known as the basic Latin block of the ISO646-US and Unicode character set */
Public static final String US_ASCII = "US-ASCII "; /** ISO Latin alphabet No.1, also known as ISO-LATIN-1 */
Public static final String ISO_8859_1 = "ISO-8859-1 "; /** Convert 8-bit UCS */
Public static final String UTF_8 = "UTF-8 "; /** 16-bit UCS conversion format, Big Endian (the lowest address stores high byte) byte order */
Public static final String UTF_16BE = "UTF-16BE "; /** 16-bit UCS conversion format, Little-endian (the highest address stores low byte) byte order */
Public static final String UTF_16LE = "UTF-16LE "; /** The 16-bit UCS conversion format. The byte sequence is identified by optional byte sequence tags */
Public static final String UTF_16 = "UTF-16 "; /** Chinese character set */
Public static final String GBK = "GBK "; /**
* Convert character encoding into US-ASCII code
*/
Public String toASCII (String str) throws UnsupportedEncodingException {
Return this. changeCharset (str, US_ASCII );
} /**
* Convert character encoding into ISO-8859-1 code
*/
Public String toISO_8859_1 (String str) throws UnsupportedEncodingException {
Return this. changeCharset (str, ISO_8859_1 );
} /**
* Convert character encoding into UTF-8 code
*/
Public String toUTF_8 (String str) throws UnsupportedEncodingException {
Return this. changeCharset (str, UTF_8 );
} /**
* Convert character encoding into UTF-16BE code
*/
Public String toUTF_16BE (String str) throws UnsupportedEncodingException {
Return this. changeCharset (str, UTF_16BE );
} /**
* Convert character encoding into UTF-16LE code
*/
Public String toUTF_16LE (String str) throws UnsupportedEncodingException {
Return this. changeCharset (str, UTF_16LE );
} /**
* Convert character encoding into UTF-16 code
*/
Public String toUTF_16 (String str) throws UnsupportedEncodingException {
Return this. changeCharset (str, UTF_16 );
} /**
* Convert character encoding to GBK code
*/
Public String toGBK (String str) throws UnsupportedEncodingException {
Return this. changeCharset (str, GBK );
} /**
* Implementation of string encoding conversion
*
* @ Param str
* String to be converted
* @ Param newCharset
* Target encoding
* @ Return
* @ Throws UnsupportedEncodingException
*/
Public String changeCharset (String str, String newCharset) throws UnsupportedEncodingException {
If (str! = Null ){
// Use the default character encoding to decode the string.
Byte [] bs = str. getBytes ();
// Generate a string encoded with a new character
Return new String (bs, newCharset );
}
Return null;
} /**
* Implementation of string encoding conversion
*
* @ Param str
* String to be converted
* @ Param oldCharset
* Original encoding
* @ Param newCharset
* Target encoding
* @ Return
* @ Throws UnsupportedEncodingException
*/
Public String changeCharset (String str, String oldCharset, String newCharset) throws UnsupportedEncodingException {
If (str! = Null ){
// Encode and decode the string with the old character. An exception may occur during decoding.
Byte [] bs = str. getBytes (oldCharset );
// Generate a string encoded with a new character
Return new String (bs, newCharset );
}
Return null;
}
} |
