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import java.io.UnsupportedEncodingException;
/**
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*/
public class ChangeCharset {
/** 7λASCII×Ö·û£¬Ò²½Ð×÷ISO646-US¡¢Unicode×Ö·û¼¯µÄ»ù±¾À­¶¡¿é */
public static final String US_ASCII = "US-ASCII";
/** ISO À­¶¡×Öĸ±í No.1£¬Ò²½Ð×÷ ISO-LATIN-1 */
public static final String ISO_8859_1 = "ISO-8859-1";
/** 8 λ UCS ת»»¸ñʽ */
public static final String UTF_8 = "UTF-8";
/** 16 λ UCS ת»»¸ñʽ£¬Big Endian£¨×îµÍµØÖ·´æ·Å¸ßλ×Ö½Ú£©×Ö½Ú˳Ðò */
public static final String UTF_16BE = "UTF-16BE";
/** 16 λ UCS ת»»¸ñʽ£¬Little-endian£¨×î¸ßµØÖ·´æ·ÅµÍλ×Ö½Ú£©×Ö½Ú˳Ðò */
public static final String UTF_16LE = "UTF-16LE";
/** 16 λ UCS ת»»¸ñʽ£¬×Ö½Ú˳ÐòÓÉ¿ÉÑ¡µÄ×Ö½Ú˳Ðò±ê¼ÇÀ´±êʶ */
public static final String UTF_16 = "UTF-16";
/** ÖÐÎij¬´ó×Ö·û¼¯ */
public static final String GBK = "GBK";
/**
* ½«×Ö·û±àÂëת»»³ÉUS-ASCIIÂë
*/
public String toASCII(String str) throws UnsupportedEncodingException{
   return this.changeCharset(str, US_ASCII);
}
/**
* ½«×Ö·û±àÂëת»»³ÉISO-8859-1Âë
*/
public String toISO_8859_1(String str) throws UnsupportedEncodingException{
   return this.changeCharset(str, ISO_8859_1);
}
/**
* ½«×Ö·û±àÂëת»»³ÉUTF-8Âë
*/
public String toUTF_8(String str) throws UnsupportedEncodingException{
   return this.changeCharset(str, UTF_8);
}
/**
* ½«×Ö·û±àÂëת»»³ÉUTF-16BEÂë
*/
public String toUTF_16BE(String str) throws UnsupportedEncodingException{
   return this.changeCharset(str, UTF_16BE);
}
/**
* ½«×Ö·û±àÂëת»»³ÉUTF-16LEÂë
*/
public String toUTF_16LE(String str) throws UnsupportedEncodingException{
   return this.changeCharset(str, UTF_16LE);
}
/**
* ½«×Ö·û±àÂëת»»³ÉUTF-16Âë
*/
public String toUTF_16(String str) throws UnsupportedEncodingException{
   return this.changeCharset(str, UTF_16);
}
/**
* ½«×Ö·û±àÂëת»»³ÉGBKÂë
*/
public String toGBK(String str) throws UnsupportedEncodingException{
   return this.changeCharset(str, GBK);
}