JAVA字符串编码转换常用类，java字符串编码,package com.

JAVA字符串编码转换常用类，java字符串编码,package com.

package com.using.test;import java.io.UnsupportedEncodingException;/** * 转换字符串的编码 */public class ConverStr {    public static void main(String[] args) throws UnsupportedEncodingException {        ConverStr test = new ConverStr();        String str = "\\u9519\\u8bef\\u7684\\u6765\\u6e90";        System.out.println("str: " + str);        String gbk = test.toGBK(str);        System.out.println("转换成GBK码: " + gbk);        System.out.println();        String ascii = test.toASCII(str);        System.out.println("转换成US-ASCII码: " + ascii);        gbk = test.changeCharset(ascii, ConverStr.US_ASCII, ConverStr.GBK);        System.out.println("再把ASCII码的字符串转换成GBK码: " + gbk);        System.out.println();        String iso88591 = test.toISO_8859_1(str);        System.out.println("转换成ISO-8859-1码: " + iso88591);        gbk = test.changeCharset(iso88591, ConverStr.ISO_8859_1, ConverStr.GBK);        System.out.println("再把ISO-8859-1码的字符串转换成GBK码: " + gbk);        System.out.println();        String utf8 = test.toUTF_8(str);        System.out.println("转换成UTF-8码: " + utf8);        gbk = test.changeCharset(utf8, ConverStr.UTF_8, ConverStr.GBK);        System.out.println("再把UTF-8码的字符串转换成GBK码: " + gbk);        System.out.println();        String utf16be = test.toUTF_16BE(str);        System.out.println("转换成UTF-16BE码:" + utf16be);        gbk = test.changeCharset(utf16be, ConverStr.UTF_16BE, ConverStr.GBK);        System.out.println("再把UTF-16BE码的字符串转换成GBK码: " + gbk);        System.out.println();        String utf16le = test.toUTF_16LE(str);        System.out.println("转换成UTF-16LE码:" + utf16le);        gbk = test.changeCharset(utf16le, ConverStr.UTF_16LE, ConverStr.GBK);        System.out.println("再把UTF-16LE码的字符串转换成GBK码: " + gbk);        System.out.println();        String utf16 = test.toUTF_16(str);        System.out.println("转换成UTF-16码:" + utf16);        gbk = test.changeCharset(utf16, ConverStr.UTF_16LE, ConverStr.GBK);        System.out.println("再把UTF-16码的字符串转换成GBK码: " + gbk);        String s = new String("中文".getBytes("UTF-8"), "UTF-8");        System.out.println(s);    }    /** 7位ASCII字符，也叫作ISO646-US、Unicode字符集的基本拉丁块 */    public static final String US_ASCII = "US-ASCII";    /** ISO 拉丁字母表 No.1，也叫作 ISO-LATIN-1 */    public static final String ISO_8859_1 = "ISO-8859-1";    /** 8 位 UCS 转换格式 */    public static final String UTF_8 = "UTF-8";    /** 16 位 UCS 转换格式，Big Endian（最低地址存放高位字节）字节顺序 */    public static final String UTF_16BE = "UTF-16BE";    /** 16 位 UCS 转换格式，Little-endian（最高地址存放低位字节）字节顺序 */    public static final String UTF_16LE = "UTF-16LE";    /** 16 位 UCS 转换格式，字节顺序由可选的字节顺序标记来标识 */    public static final String UTF_16 = "UTF-16";    /** 中文超大字符集 */    public static final String GBK = "GBK";    /**     * 将字符编码转换成US-ASCII码     */    public String toASCII(String str) throws UnsupportedEncodingException {        return this.changeCharset(str, US_ASCII);    }    /**     * 将字符编码转换成ISO-8859-1码     */    public String toISO_8859_1(String str) throws UnsupportedEncodingException {        return this.changeCharset(str, ISO_8859_1);    }    /**     * 将字符编码转换成UTF-8码     */    public String toUTF_8(String str) throws UnsupportedEncodingException {        return this.changeCharset(str, UTF_8);    }    /**     * 将字符编码转换成UTF-16BE码     */    public String toUTF_16BE(String str) throws UnsupportedEncodingException {        return this.changeCharset(str, UTF_16BE);    }    /**     * 将字符编码转换成UTF-16LE码     */    public String toUTF_16LE(String str) throws UnsupportedEncodingException {        return this.changeCharset(str, UTF_16LE);    }    /**     * 将字符编码转换成UTF-16码     */    public String toUTF_16(String str) throws UnsupportedEncodingException {        return this.changeCharset(str, UTF_16);    }    /**     * 将字符编码转换成GBK码     */    public String toGBK(String str) throws UnsupportedEncodingException {        return this.changeCharset(str, GBK);    }    /**     * 字符串编码转换的实现方法     *      * @param str     *            待转换编码的字符串     * @param newCharset     *            目标编码     * @return     * @throws UnsupportedEncodingException     */    public String changeCharset(String str, String newCharset) throws UnsupportedEncodingException {        if (str != null) {            // 用默认字符编码解码字符串。            byte[] bs = str.getBytes();            // 用新的字符编码生成字符串            return new String(bs, newCharset);        }        return null;    }    /**     * 字符串编码转换的实现方法     *      * @param str     *            待转换编码的字符串     * @param oldCharset     *            原编码     * @param newCharset     *            目标编码     * @return     * @throws UnsupportedEncodingException     */    public String changeCharset(String str, String oldCharset, String newCharset) throws UnsupportedEncodingException {        if (str != null) {            // 用旧的字符编码解码字符串。解码可能会出现异常。            byte[] bs = str.getBytes(oldCharset);            // 用新的字符编码生成字符串            return new String(bs, newCharset);        }        return null;    }}//该片段来自于http://byrx.net