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从上次,跟合作方的站点对接开始就产生了这个问题,当时用C#进行POST提交,总是会出现问题,找了很久发现对方的站点居然是TLS 1.2 的。 正文:然而,在.NET FrameWork 4.0的环境下,居然找不到。。。System.Net.SecurityProtocolType 这个枚举,没有这个值。。。 所以,在POST提交的时候,是会出现问题,有的网站就不会有这个问题,因为他们是1.0的。 所以啊,感觉这就是一个坑,好在,即使没有现成的,1.2我们也是可以用代码来实现1.2的 ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072; //SecurityProtocolType.Tls1.2; 当然,如果是4.0以后的环境,查看这个枚举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 } } ,,,,到这里,该说的,都说了,最后附上,C# https POST的代码吧。 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; // 这里设置了协议类型。 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方式发送数据 request.ContentType = "application/x-www-form-urlencoded"; 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(); //获取网页响应结果 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; //总是接受 } } https是应用层协议,tls是传输层 s就是Security安全的意思 https,就是带签名
同理 tls也是一样 从上次,跟合作方的站点对接开始就产生了这个问题,当时用C#进行POST提交,总是会出现问题,找了很久发现对方的站点居然是TLS 1.2 的。 正文:然而,在.NET FrameWork 4.0的环境下,居然找不到。。。System.Net.SecurityProtocolType 这个枚举,没有这个值。。。 所以,在POST提交的时候,是会出现问题,有的网站就不会有这个问题,因为他们是1.0的。 所以啊,感觉这就是一个坑,好在,即使没有现成的,1.2我们也是可以用代码来实现1.2的 ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072; //SecurityProtocolType.Tls1.2; 当然,如果是4.0以后的环境,查看这个枚举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 } } ,,,,到这里,该说的,都说了,最后附上,C# https POST的代码吧。 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; // 这里设置了协议类型。 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方式发送数据 request.ContentType = "application/x-www-form-urlencoded"; 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(); //获取网页响应结果 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; //总是接受 } } https是应用层协议,tls是传输层 s就是Security安全的意思 https,就是带签名
同理 tls也是一样 |
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