java MD5加密

来源：互联网发布：fgo阿尔托利亚技能数据编辑：程序博客网时间：2024/05/16 03:12
    /**     * MD5加密     * @param origin     * @param charsetname     * @return     */    public static String MD5Encode(String origin, String charsetname) {        String resultString = null;        try {            resultString = new String(origin);            MessageDigest md = MessageDigest.getInstance("MD5");            if (charsetname == null || "".equals(charsetname))                resultString = byteArrayToHexString(md.digest(resultString                        .getBytes()));            else                resultString = byteArrayToHexString(md.digest(resultString                        .getBytes(charsetname)));        } catch (Exception exception) {        }        return resultString;    }    private static String byteArrayToHexString(byte b[]) {        StringBuffer resultSb = new StringBuffer();        for (int i = 0; i < b.length; i++)            resultSb.append(byteToHexString(b[i]));        return resultSb.toString();    }    private static String byteToHexString(byte b) {        int n = b;        if (n < 0)            n += 256;        int d1 = n / 16;        int d2 = n % 16;        return hexDigits[d1] + hexDigits[d2];    }    private static final String hexDigits[] = { "0", "1", "2", "3", "4", "5",            "6", "7", "8", "9", "a", "b", "c", "d", "e", "f" };
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