C# 调用移动MAS接口发送普通短信WebClient方式

  public string PostMAS(string mobiles)
        {
            
            
            string str = myContent.ecName + myContent.apId + myContent.secretKey + mobiles + myContent.content + myContent.sign + myContent.addSerial;
            myContent.mac = GetStrMD5_32(str);
            myContent.mobiles = mobiles;

            string strJson = JsonConvert.SerializeObject(myContent);

            string  _data = EncryptBase64(strJson);
            WebClient webClient = new WebClient();
            webClient.Headers.Add("Content-Type", "application/json;charset=UTF-8");
            webClient.Headers.Add(HttpRequestHeader.Accept, "*/*");
            webClient.Headers.Add("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)");
            byte[] responseBytes = webClient.UploadData(baseUrl,"POST",System.Text.Encoding.UTF8.GetBytes(_data));

            return System.Text.Encoding.UTF8.GetString(responseBytes);
            

           

        }

public string GetStrMD5_32(string str)
        {
            MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
            string Md5Str = BitConverter.ToString(md5.ComputeHash(UTF8Encoding.Default.GetBytes(str)));
            Md5Str = Md5Str.Replace("-","");
            return Md5Str.ToLower();
        }

 public string EncryptBase64(string source)
        {
            byte[] bytes = Encoding.Default.GetBytes(source);
            return Convert.ToBase64String(bytes);
        }