net core 3.1 开发 我的代码 用的是IHttpClientFactory 生成的对象 进行https请求 [图片] 接口地址  https://api.weixin.qq.com/sns/jscode2session?appid=APPID&secret=SECRET&js_code=JSCODE&grant_type=authorization_code 偶尔会报错，不是每次都会出现： "System.Net.WebException: The SSL connection could not be established, see inner exception. Authentication failed because the remote party has closed the transport stream.  ---> System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception.  ---> System.IO.IOException: Authentication failed because the remote party has closed the transport stream.    at System.Net.Security.SslStream.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest)    at System.Net.Security.SslStream.PartialFrameCallback(AsyncProtocolRequest asyncRequest) --- End of stack trace from previous location where exception was thrown ---    at System.Net.Security.SslStream.EndProcessAuthentication(IAsyncResult result)    at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization) --- End of stack trace from previous location where exception was thrown ---    at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken)    --- End of inner exception stack trace ---    at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken)    at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean allowHttp2, CancellationToken cancellationToken)    at System.Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken)    at System.Net.Http.HttpConnectionPool.GetHttpConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken)    at System.Net.Http.HttpConnectionPool.SendWithRetryAsync(HttpRequestMessage request, Boolean doRequestAuth, CancellationToken cancellationToken)    at System.Net.Http.AuthenticationHelper.SendWithAuthAsync(HttpRequestMessage request, Uri authUri, ICredentials credentials, Boolean preAuthenticate, Boolean isProxyAuth, Boolean doRequestAuth, HttpConnectionPool pool, CancellationToken cancellationToken)    at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)    at System.Net.Http.DiagnosticsHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)    at System.Net.Http.HttpClient.FinishSendAsyncUnbuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts)    at System.Net.HttpWebRequest.SendRequest()    at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)    --- End of inner exception stack trace ---    at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)    at System.Net.WebClient.GetWebResponse(WebRequest request, IAsyncResult result)    at System.Net.WebClient.GetWebResponseTaskAsync(WebRequest request)    at System.Net.WebClient.DownloadBitsAsync(WebRequest request, Stream writeStream, AsyncOperation asyncOp, Action`3 completionDelegate)