如何在C＃中使用SSL的HTTP GET请求？ （协议违规）

我目前正在尝试从在C＃中使用SSL的服务器获得响应。 我有在Java中执行此操作的代码，但看起来它们不会以1：1进行翻译。

我确实有一些代码，我发现它适用于常规页面，但不适用于我需要的代码（可能是因为SSL的事情）。 这是代码：

WebRequest request = WebRequest.Create("https://" + sslServerHost + ":" + sslServerPort); request.Proxy = null; request.Credentials = CredentialCache.DefaultCredentials; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream dataStream = response.GetResponseStream(); StreamReader reader = new StreamReader(dataStream); string responseFromServer = reader.ReadToEnd(); 

更新：对不起，我似乎忘记了错误是什么。 我在“HttpWebResponse response =（HttpWebResponse）request.GetResponse（）;”行中遇到了协议违规exception。 有任何想法吗？ 多谢你们。

Answer 1

SSL上的HTTP会话使用正确颁发的证书进行validation。

您可以使用RemoteCertificateValidationCallback委托来validationSSL证书，如下所示：

 public static void ConnectSSL() { WebRequest request = WebRequest.Create("https://" + sslServerHost + ":" + sslServerPort); request.Proxy = null; request.Credentials = CredentialCache.DefaultCredentials; //allows for validation of SSL certificates ServicePointManager.ServerCertificateValidationCallback += new System.Net.Security.RemoteCertificateValidationCallback(ValidateServerCertificate); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream dataStream = response.GetResponseStream(); StreamReader reader = new StreamReader(dataStream); string responseFromServer = reader.ReadToEnd(); } //for testing purpose only, accept any dodgy certificate... public static bool ValidateServerCertificate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) { return true; } 

Answer 2

只是一个想法，但你有没有尝试过最后的“/”？ 此外 – 您可能会发现这种方法更容易：

 string s; using(WebClient client = new WebClient()) { client.UseDefaultCredentials = true; s = client.DownloadString("https://" + sslServerHost + ":" + sslServerPort + "/"); } 

Answer 3

以下是我成功用于测试SSL连接的一些测试代码……

 HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://www.dscoduc.com"); //request.Method = "HEAD"; //request.AllowAutoRedirect = false; request.Credentials = CredentialCache.DefaultCredentials; // Ignore Certificate validation failures (aka untrusted certificate + certificate chains) ServicePointManager.ServerCertificateValidationCallback = ((sender, certificate, chain, sslPolicyErrors) => true); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream resStream = response.GetResponseStream(); StreamReader reader = new StreamReader(resStream); string responseFromServer = reader.ReadToEnd();