工具类

    public class DataConvert
    {

        /// <summary>
        /// 获得MD5加密字符串
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string GetMD5String(string str)
        {
            return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5");
        }


        /// <summary>
        /// 获得MD5加密字符串
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string GetFileMD5String(string FilePath)
        {
            if (!File.Exists(FilePath))
            {
                return "";
            }

            try
            {
                using (FileStream get_file = new FileStream(FilePath, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    System.Security.Cryptography.MD5CryptoServiceProvider get_md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
                    byte[] hash_byte = get_md5.ComputeHash(get_file);
                    string resule = System.BitConverter.ToString(hash_byte);
                    resule = resule.Replace("-", "");
                    get_file.Close();
                    get_file.Dispose();
                    return resule;
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                return GetMD5String("");
            }
        }


        /// <summary>
        /// 将对象序列化
        /// </summary>
        /// <param name="info"></param>
        /// <returns>返回UTF8格式编码的字节数组</returns>
        public static byte[] Serialize(object info)
        {
            if (info == null)
            {
                return null;
            }
            JavaScriptSerializer js = new JavaScriptSerializer();
            try
            {
                string str = js.Serialize(info);
                if (str == null)
                {
                    return null;
                }
                return Encoding.UTF8.GetBytes(str);
            }
            catch (InvalidOperationException ex)
            {
                Console.WriteLine(ex.Message);
                return null;
            }
        }


        /// <summary>
        /// 反序列化
        /// </summary>
        /// <returns></returns>
        public static Dictionary<string, object> Dserialize(string strJsonData)
        {
            if (strJsonData == null || strJsonData == "")
            {
                return null;
            }

            JavaScriptSerializer js = new JavaScriptSerializer();
            try
            {
                return js.Deserialize<Dictionary<string, object>>(strJsonData);
            }
            catch (InvalidOperationException ex)
            {
                Console.WriteLine(ex.Message);
                return null;
            }
            catch (ArgumentException exec)
            {
                Console.WriteLine(exec.Message);
                return null;
            }
        }


        /// <summary>
        /// 反序列化
        /// </summary>
        /// <returns></returns>
        public static Dictionary<string, object> Dserialize(byte[]  bufferJsonData)
        {
            return Dserialize(Encoding.Default.GetString(bufferJsonData));
        }

    }