public static String byteArr2HexStr(byte[] bytIn)

        {

            StringBuilder builder = new StringBuilder();

            foreach (byte num in bytIn)

            {

                builder.AppendFormat("{0:X2}", num);

            }

            return builder.ToString();// byteArr2HexStr(encrypt(padStr(strIn).getBytes()));

        }

        public static byte[] encrypt(string str, string key)

        {

            DESCryptoServiceProvider provider = new DESCryptoServiceProvider();

            provider.Mode = System.Security.Cryptography.CipherMode.ECB;

            provider.Key = Encoding.ASCII.GetBytes(key.Substring(, ));

            provider.IV = Encoding.ASCII.GetBytes(key.Substring(, ));

            byte[] bytes = Encoding.GetEncoding("GB2312").GetBytes(str);

            MemoryStream stream = new MemoryStream();

            CryptoStream stream2 = new CryptoStream(stream, provider.CreateEncryptor(), CryptoStreamMode.Write);

            stream2.Write(bytes, , bytes.Length);

            return stream.ToArray();

        }

        public static String padStr(String sourceData)

        {

            byte[] bytes = Encoding.GetEncoding("GB2312").GetBytes(sourceData);

            int n = ( - (bytes.Length) % );

            if (n >  && n != )

            {

                for (int i = ; i < n; i++)

                    sourceData = sourceData + " ";

            }

            return sourceData;

        }

        /// <summary>

        /// 加密算法-适用于java解密，不足8的倍数已补足空格

        /// </summary>

        /// <param name="Text"></param>

        /// <param name="sKey"></param>

        /// <returns></returns>

        public static string Encrypt(string Text, string sKey)

        {

            return byteArr2HexStr(encrypt(padStr(Text), sKey));

        }