字符串转byte(xxx)格式字符串数组

2015-10-04 10:27:57 访问(2273) 赞(0) 踩(0)


        /// <summary>
        /// 字符串转成byte[]数组的String
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string StringToByteArrayString(string str)
        {
            if (str == null || str.Length == 0)
                return "";

            byte[] byteArray = Encoding.Default.GetBytes(str);

            return ByteArrayToString(byteArray);
        }

        /// <summary>
        /// 字符串转成byte[]数组的String
        /// </summary>
        /// <param name="str"></param>
        /// <param name="_encoding"></param>
        /// <returns></returns>
        public static string StringToByteArrayString(string str, System.Text.Encoding _encoding)
        {
            if (str == null || str.Length == 0)
                return "";

            if (_encoding == null)
            {
                throw new Exception
                   (
                       "方法："
                       + MethodBase.GetCurrentMethod().ReflectedType.FullName
                       + " "
                       + MethodBase.GetCurrentMethod().ToString()
                       + " 发生异常："
                       + "传入参数：System.Text.Encoding _encoding 为null。"
                   );
            }

            byte[] byteArray = _encoding.GetBytes(str);

            return ByteArrayToString(byteArray);
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="byteArray"></param>
        /// <returns></returns>
        public static string ByteArrayToString(byte[] byteArray)
        {
            if (byteArray == null)
            {
                throw new Exception
                   (
                       "方法："
                       + MethodBase.GetCurrentMethod().ReflectedType.FullName
                       + " "
                       + MethodBase.GetCurrentMethod().ToString()
                       + " 发生异常："
                       + "传入参数：byte[] byteArray 为null。"
                   );
            }

            StringBuilder theResult = new StringBuilder();

            foreach (byte b in byteArray)
            {
                theResult.Append(b.ToString().PadLeft(3, '0'));
            }

            return theResult.ToString();
        }

        /// <summary>
        /// 字符串转成byte[]数组
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static byte[] StringToByteArray(string str)
        {
            if (str == null || str.Length == 0)
                return null;

            int iLen = str.Length;

            if (iLen % 3 != 0)
            {
                throw new Exception
                   (
                       "方法："
                       + MethodBase.GetCurrentMethod().ReflectedType.FullName
                       + " "
                       + MethodBase.GetCurrentMethod().ToString()
                       + " 发生异常："
                       + "iLen % 3 != 0，传入的字符串不是合理的byte[]值。"
                   );
            }

            int iArrayLen = iLen / 3;
            byte[] theResult = new byte[iArrayLen];

            string strItem = string.Empty;
            byte bItem = 1;

            for (int i = 0; i < iArrayLen; ++i)
            {
                strItem = str.Substring(i * 3, 3);

                bItem = byte.Parse(strItem);

                theResult[i] = bItem;

            }

            return theResult;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string ByteArrayStringToString(string str)
        {
            byte[] bArray = StringToByteArray(str);

            return Encoding.Default.GetString(bArray);
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="str"></param>
        /// <param name="_encoding"></param>
        /// <returns></returns>
        public static string ByteArrayStringToString
            (
                string str, 
                System.Text.Encoding _encoding
            )
        {
            if (_encoding == null)
            {
                throw new Exception
                   (
                       "方法："
                       + MethodBase.GetCurrentMethod().ReflectedType.FullName
                       + " "
                       + MethodBase.GetCurrentMethod().ToString()
                       + " 发生异常："
                       + "传入参数：System.Text.Encoding _encoding 为null。"
                   );
            }

            byte[] bArray = StringToByteArray(str);

            return _encoding.GetString(bArray);
        }