.NET对接TSINGSEE青犀视频智能分析平台API的部分功能及技巧总结(内含POST和GET的调用)

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TSINGSEE青犀视频智能分析平台EasyNVR、EasyCVR等都具备丰富的API接口,API接口中密码需要MD5加密,这一点是为了系统安全考虑,下文中有具体实现,可以参考。本文我们总结下NET对接TSINGSEE青犀视频智能分析平台API用到的几个小功能,TSINGSEE青犀视频智能分析平台中API接口提供的POST和GET的调用下文中也有具体实现,请注意下,我们反复强调接口调用的时候请注意下TOKEN值的传递。

1、Easy系列产品在登录时对密码需要进行32位MD5加密,.NET对应实现如下:

public string GetMd5(string str)
        {
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] bytes = System.Text.Encoding.UTF8.GetBytes(str);
            bytes = md5.ComputeHash(bytes);
            md5.Clear();
            string ret = "";
            for (int i = 0; i < bytes.Length; i++)
            {
                ret += Convert.ToString(bytes[i], 16).PadLeft(2, '0');
            }
            return ret.PadLeft(32, '0');
        }

2、向指定URL发送HTTP -GET方法的请求

public string SendGet(string url, string param)
        {
            string result = String.Empty;
            StreamReader reader = null;
            try
            {
                string urlNameString = url + "?" + param;
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(urlNameString);
                request.Method = "GET";
                request.ContentType = "text/html;charset=UTF-8";
                request.Accept = "*/*";
                request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)";
                //头里面要带入token
                request.Headers.Add("Cookie", "token=acMyRwXZg");
                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                Stream responseStream = response.GetResponseStream();
                reader = new StreamReader(responseStream, Encoding.GetEncoding("utf-8"));
                result = reader.ReadToEnd();

                reader.Close();
                responseStream.Close();
                response.Close();
                reader = null;
                responseStream = null;
                response = null;
            }
            catch (Exception ex)
            {
                Console.WriteLine("发送GET请求出现异常:" + ex.Message);
            }
            finally
            {
                if (reader != null)
                {
                    reader.Close();
                }
            }
            return result;
        }

3、向指定 URL 发送HTTP-POST方法的请求

public string SendPost(string url, string jsonData, string encoding)
        {
            string result = String.Empty;
            try
            {
                CookieContainer cookie = new CookieContainer();
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                request.Method = "POST";
                request.Headers.Add("x-requested-with", "XMLHttpRequest");
                request.ServicePoint.Expect100Continue = false;
                request.ContentType = "application/x-www-form-urlencoded";
                request.Accept = "*/*";
                request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)";
                request.ContentLength = Encoding.UTF8.GetByteCount(jsonData);
                request.CookieContainer = cookie;
                using (StreamWriter writer = new StreamWriter(request.GetRequestStream(), Encoding.GetEncoding(encoding)))
                {
                    writer.Write(jsonData);
                }

                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                response.Cookies = cookie.GetCookies(response.ResponseUri);
                using (Stream responseStream = response.GetResponseStream())
                {
                    using (StreamReader reader = new StreamReader(responseStream, Encoding.GetEncoding(encoding)))
                    {
                        result = reader.ReadToEnd();

                        reader.Close();
                    }
                    responseStream.Close();
                }
                response.Close();
                response = null;
                request = null;
            }
            catch (Exception ex)
            {
                Console.WriteLine("发送GET请求出现异常:" + ex.Message);
            }
            return result;
        }

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