请求被中止: 未能创建 SSL/TLS 安全通道
public static string PostData(string postUrl, string paramData, Encoding dataEncode)
{
string ret = string.Empty;
try
{
Console.WriteLine(postUrl + paramData);
string result = string.Empty;
byte[] byteArray = dataEncode.GetBytes(paramData);
HttpWebRequest webReq = null;
if (postUrl.StartsWith("https", StringComparison.OrdinalIgnoreCase))
{
Console.WriteLine("https");
ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072 | SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls | (SecurityProtocolType)0x300 | (SecurityProtocolType)0xC00;
ServicePointManager.ServerCertificateValidationCallback += CheckValidationResult;
//ServicePointManager.CheckCertificateRevocationList = false;
//ServicePointManager.DefaultConnectionLimit = 512;
//ServicePointManager.Expect100Continue = false;
webReq = WebRequest.Create(postUrl) as HttpWebRequest;
//webReq.ProtocolVersion = HttpVersion.Version10;
}
else
{
webReq = (HttpWebRequest)WebRequest.Create(new Uri(postUrl));
}
webReq.Method = "post";
webReq.ContentType = "application/json";
webReq.ContentLength = byteArray.Length;
Stream newStream = webReq.GetRequestStream();
newStream.Write(byteArray, 0, byteArray.Length);//写入参数
newStream.Close();
HttpWebResponse response = (HttpWebResponse)webReq.GetResponse();
using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))
{
result = reader.ReadToEnd();
}
Console.WriteLine(result);
return result;
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return ret;
}
public static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
{
return true;
}
访问https接口
一台服务器有返回结果 这台服务器.netframework 4.7
另一台服务器返回结果为请求被中止: 未能创建 SSL/TLS 安全通道 这台服务器.netframework 4.0
有知道吗
