C#———post请求http 或 https_c#中使用post请求

		private static string Post(string PostUrl, string Parameters)
        {
            string content = string.Empty;
            try
            {
                ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Ssl3;  //https 请求必需语句，http 请求可省略
                                                                                                                                                                        //跳过ssl验证
                ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) => true;
                //path不是登录界面，是登录界面向服务器提交数据的界面
                HttpWebRequest myReq = (HttpWebRequest)HttpWebRequest.Create(PostUrl);
                myReq.Method = "Post";
                myReq.ContentType = "application/json";
                myReq.Headers.Add("Authorization", "Basic " + GetEncodedCredentials());	//https添加 Basic auth验证
                //myReq.Connection = "keep-alive";
                myReq.Headers.Add("Cookie", "477cadb5a1f917cda5f5d9cab20f8841=42c7f20d7a509babe62c3e74995d5140; 3c343960f5dd4584c34cd6b38885cefe=000e1bf2bbd8e5ae2dabff0eb27e3b6f");
                //myReq.Headers.Add("usercode", "JRFZCX_MYFK");
                //myReq.Headers.Add("password", "*&ZHY&*0379");//&JRFZ&01
                //填充POST数据
                if (Parameters != null)
                {
                    //转换为字节数组
                    byte[] bytesRequestData = Encoding.UTF8.GetBytes(Parameters);
                    myReq.ContentLength = bytesRequestData.Length;
                    Stream requestStream = myReq.GetRequestStream();
                    requestStream.Write(bytesRequestData, 0, bytesRequestData.Length);
                    requestStream.Close();
                }
                else
                {
                    myReq.ContentLength = 0;
                }

                //发送POST数据请求服务器
                HttpWebResponse HttpWResp = (HttpWebResponse)myReq.GetResponse();
                //获取服务器返回信息
                Stream myStream = HttpWResp.GetResponseStream();
                StreamReader reader = new StreamReader(myStream, Encoding.UTF8);
                content = reader.ReadToEnd();
                reader.Close();
                HttpWResp.Close();
            }
            catch (Exception ex)
            {
                content = ex.ToString();
            }
            return content;
        }
        
		private  string GetEncodedCredentials()
        {
            string mergedCredentials = string.Format("{0}:{1}", _username, _password);
            byte[] byteCredentials = UTF8Encoding.UTF8.GetBytes(mergedCredentials);
            return Convert.ToBase64String(byteCredentials);
        }
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54