import java.io.UnsupportedEncodingException;

import org.apache.commons.codec.binary.Hex;

public class Example {

    /**

     * 将普通字符串转换成Hex编码字符串

     *

     * @param dataCoding 编码格式，15表示GBK编码，8表示UnicodeBigUnmarked编码，0表示ISO8859-1编码

     * @param realStr 普通字符串

     * @return Hex编码字符串

     * @throws UnsupportedEncodingException

     */

    public static String encodeHexStr(int dataCoding, String realStr) {

        String hexStr = null;

        if (realStr != null) {

            try {

                if (dataCoding == 15) {

                    hexStr = new String(Hex.encodeHex(realStr.getBytes("GBK")));

                } else if ((dataCoding & 0x0C) == 0x08) {

                    hexStr = new String(Hex.encodeHex(realStr.getBytes("UnicodeBigUnmarked")));

                } else {

                    hexStr = new String(Hex.encodeHex(realStr.getBytes("ISO8859-1")));

                }

            } catch (UnsupportedEncodingException e) {

                System.out.println(e.toString());

            }

        }

        return hexStr;

    }

    /**

     * 将Hex编码字符串转换成普通字符串

     *

     * @param dataCoding 反编码格式，15表示GBK编码，8表示UnicodeBigUnmarked编码，0表示ISO8859-1编码

     * @param hexStr Hex编码字符串

     * @return 普通字符串

     */

    public static String decodeHexStr(int dataCoding, String hexStr) {

        String realStr = null;

        try {

            if (hexStr != null) {

                if (dataCoding == 15) {

                    realStr = new String(Hex.decodeHex(hexStr.toCharArray()), "GBK");

                } else if ((dataCoding & 0x0C) == 0x08) {

                    realStr = new String(Hex.decodeHex(hexStr.toCharArray()), "UnicodeBigUnmarked");

                } else {

                    realStr = new String(Hex.decodeHex(hexStr.toCharArray()), "ISO8859-1");

                }

            }

        } catch (Exception e) {

            System.out.println(e.toString());

        }

        return realStr;

    }

}