c#调用腾讯云API的实例

时间：2023-06-09 11:20:44
　　　　　　　//获取时间戳 .net framework

            /*

            DateTime dt = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));

            int time = (int)(DateTime.Now - dt).TotalSeconds;

            String Timestamp = time.ToString();

            */

            // .net core 获取时间戳

            DateTime dt = new DateTime(, , ,, , , DateTimeKind.Utc);

            int time = (int)(DateTime.Now.AddHours(-) - dt).TotalSeconds;

            String Timestamp = time.ToString();

            //随机正整数,用于防止重放攻击

            Random rd = new Random();

            int rd_i = rd.Next();

            String nonce = Convert.ToString(rd_i);

            //SecretId

            String SecretId = "";

            //参数(用于编码)

            String PostStr = string.Format("Action=DescribeLVBChannelList&Nonce={0}&Region=bj&SecretId={1}&Timestamp={2}", nonce, SecretId, Timestamp);

            //地址

            String url = "https://live.api.qcloud.com/v2/index.php";

            //编码

            UTF8Encoding enc = new UTF8Encoding();

            String qm = "POSTlive.api.qcloud.com/v2/index.php"  + "?" + PostStr;

            byte[] dataToHash = enc.GetBytes(qm);

            /*

            var sha1 = SHA1.Create();

            var result = sha1.ComputeHash(dataToHash);

            */

            HMACSHA1 hmac = new HMACSHA1()

            {

                Key = enc.GetBytes("")//SecretKey

            };

            var result = hmac.ComputeHash(dataToHash);

            string Signature = Convert.ToBase64String(result);

            //完整参数

            var completeUrl = string.Format("Action=DescribeLVBChannelList&Nonce={0}&Region=bj&SecretId={1}&Signature={2}&Timestamp={3}", nonce, SecretId, Signature, Timestamp);

            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

            request.Method = "POST";

            request.ContentType = "application/x-www-form-urlencoded";

            request.ProtocolVersion = HttpVersion.Version10;

            byte[] data = Encoding.UTF8.GetBytes(completeUrl);

            request.ContentLength = data.Length;

            Stream newStream = request.GetRequestStream();

            newStream.Write(data, , data.Length);

            newStream.Close();

            HttpWebResponse response = null;

            int httpStatus = ;

            string content;

            try

            {

                response = (HttpWebResponse)request.GetResponse();

                httpStatus = (int)response.StatusCode;

                StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);

                content = reader.ReadToEnd();

            }

            catch (WebException e)

            {

                response = (HttpWebResponse)e.Response;

                httpStatus = (int)response.StatusCode;

                using (Stream errData = response.GetResponseStream())

                {

                    using (StreamReader reader = new StreamReader(errData))

                    {

                        content = reader.ReadToEnd();

                    }

                }

            }

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