Question

当我尝试从我的.net 3.5 winform应用程序调用rest webservice（HTTP get）时，出现以下错误：

     `Authentication failed because the remote party has closed the transport stream. 
StackTrace:    at System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest)
       at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
       at System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest)
       at System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Net.TlsStream.ProcessAuthentication(LazyAsyncResult result)
       at System.Net.TlsStream.Write(Byte[] buffer, Int32 offset, Int32 size)
       at System.Net.PooledStream.Write(Byte[] buffer, Int32 offset, Int32 size)
       at System.Net.ConnectStream.WriteHeaders(Boolean async)`

从浏览器运行时，请求运行正常。那么，问题是服务器使用更高的tls协议，.net 3.5不支持？这是我调用webservice的代码：

XElement response = XElement.Load(url);

Answer 1

是的，最可能的原因是网络服务器TLS 1.2。如果您无法升级您的.net框架，那么这可能会有所帮助：https://github.com/juhovh/AaltoTLS
顺便说一句，我没有使用过这个第三方代码，也没有认可它 - 由你决定它的适用性。

HTTP Get request error“身份验证失败，因为远程方已关闭传输流。”

1 个答案: