public class EncryDes {    /* 加密类 */    protected Cipher ecipher;    /* 接密类 */    protected Cipher dcipher;    public EncryDes() {        try {            // Create the key，"emosdnah"为随即初始化密文            String passPhrase = "emosdnah";            /* 生成秘钥 */            KeySpec keySpec = new DESKeySpec(passPhrase.getBytes());            SecretKey key = SecretKeyFactory.getInstance("DES").generateSecret(                    keySpec);            // SecretKeySpec key = new            // SecretKeySpec(passPhrase.getBytes(),"DES");            /* 初始化加解密实例 */            ecipher = Cipher.getInstance(key.getAlgorithm());            dcipher = Cipher.getInstance(key.getAlgorithm());            // Prepare the parameter to the ciphers            // AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt,            // iterationCount);            // Create the ciphers            ecipher.init(Cipher.ENCRYPT_MODE, key);            dcipher.init(Cipher.DECRYPT_MODE, key);        } catch (Exception e) {            e.printStackTrace();        }    }    /**     * 对字符串加密     *      * @param source     *            String 要加密的字符串     * @return byte[] 已加密的字节     */    public byte[] encrypt(String source) {        try {            // Encode the string into bytes using utf-8            // byte[] utf8 = new sun.misc.BASE64Decoder().decodeBuffer(str);            // Encrypt            byte[] enc = ecipher.doFinal(source.getBytes());            // Encode bytes to base64 to get a string            // return new sun.misc.BASE64Encoder().encode(enc);            return enc;        } catch (Exception e) {            e.printStackTrace();        }        return null;    }    /**     * 对字节数组解密     *      * @param buf     *            byte[]     * @return String     */    public String decrypt(byte[] buf) {        try {            // Decode base64 to get bytes            // byte[] dec = new sun.misc.BASE64Decoder().decodeBuffer(str);            // Decrypt            byte[] utf8 = dcipher.doFinal(buf);            // Decode using utf-8            // return new String(utf8, "UTF8");            return new String(utf8);        } catch (javax.crypto.BadPaddingException e) {        } catch (IllegalBlockSizeException e) {            // } catch (UnsupportedEncodingException e) {        }        return null;    }    /**     * 专用密码加密     *      * @param password     *            String     * @return String     */    public String getEncPass(String password) {        byte[] dst = encrypt(password + "        ");// 密码补足十二位        String dstStr = "";        for (int i = 0; i < dst.length && i < 12; i++) {// 密文只取前64位            int cTmp = (int) dst[i] & 0xff;            String hexStr = Integer.toHexString(cTmp);            while (hexStr.length() < 2) {                hexStr = "0" + hexStr;            }            dstStr += hexStr;        }        return dstStr.toUpperCase();    }        public static void main(String []args){        EncryDes des = new EncryDes();        System.out.println(des.getEncPass("1234567890123"));    }}