從上次,跟合作方的站點對接開始就產生了這個問題,當時用C#進行POST提交,總是會出現問題,找了很久發現對方的站點居然是TLS 1.2 的。
然而,在.NET FrameWork 4.0的環境下,居然找不到。。。System.Net.SecurityProtocolType 這個枚舉,沒有這個值。。。
所以,在POST提交的時候,是會出現問題,有的網站就不會有這個問題,因為他們是1.0的。
所以啊,感覺這就是一個坑,好在,即使沒有現成的,1.2我們也是可以用代碼來實現1.2的
ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072; //SecurityProtocolType.Tls1.2;
當然,如果是4.0以後的環境,查看這個枚舉是可以看到不同的值的。
namespace System.Net { using System; [Flags] public enum SecurityProtocolType { Ssl3 = 0x30, Tls = 0xc0, Tls11 = 0x300, Tls12 = 0xc00 } }
,,,,到這裡,該說的,都說了,最後附上,C# https POST的代碼吧。
class ProgramTest { static void Main(string[] args) { string url = "https://www.test.com"; string result = PostUrl(url, "key=123"); // key=4da4193e-384b-44d8-8a7f-2dd8b076d784 Console.WriteLine(result); Console.WriteLine("OVER"); Console.ReadLine(); } private static string PostUrl(string url, string postData) { HttpWebRequest request = null; if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase)) { request = WebRequest.Create(url) as HttpWebRequest; ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); request.ProtocolVersion = HttpVersion.Version11;
// 這裡設置了協議類型。 ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;// SecurityProtocolType.Tls1.2; request.KeepAlive = false; ServicePointManager.CheckCertificateRevocationList = true; ServicePointManager.DefaultConnectionLimit = 100; ServicePointManager.Expect100Continue = false; } else { request = (HttpWebRequest)WebRequest.Create(url); } request.Method = "POST"; //使用get方式發送數據 request.ContentType = null; request.Referer = null; request.AllowAutoRedirect = true; request.UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727)"; request.Accept = "*/*"; byte[] data = Encoding.UTF8.GetBytes(postData); Stream newStream = request.GetRequestStream(); newStream.Write(data, 0, data.Length); newStream.Close(); //獲取網頁響應結果 HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream stream = response.GetResponseStream(); //client.Headers.Add("Content-Type", "application/x-www-form-urlencoded"); string result = string.Empty; using (StreamReader sr = new StreamReader(stream)) { result = sr.ReadToEnd(); } return result; } private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { return true; //總是接受 } }