如何訪問Sharepoint webpart中的安全網站？

如何訪問Sharepoint webpart中的安全網站？下面的代碼工作正常的控制檯應用程序，但如果你在一個web部件運行它，你會得到一個訪問衝突如何訪問Sharepoint webpart中的安全網站？

WebRequest request = WebRequest.Create("https://somesecuresite.com"); 
WebResponse firstResponse = null; 
try 
{ 
    firstResponse = request.GetResponse(); 
} 
catch (WebException ex) 
{ 

    writer.WriteLine("Error: " + ex.ToString()); 
    return; 
}

，如果你訪問一個非安全的網站，它也適用。有任何想法嗎？

 
Error: System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. ---> 
System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. 
at System.Net.UnsafeNclNativeMethods.NativePKI.CertVerifyCertificateChainPolicy(IntPtr policy, SafeFreeCertChain chainContext, ChainPolicyParameter& cpp, ChainPolicyStatus& ps) 
at System.Net.PolicyWrapper.VerifyChainPolicy(SafeFreeCertChain chainContext, ChainPolicyParameter& cpp) 
at System.Net.Security.SecureChannel.VerifyRemoteCertificate(RemoteCertValidationCallback remoteCertValidationCallback) 
at System.Net.Security.SslState.CompleteHandshake() 
at System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) 
at System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest) 
at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) 
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.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) 
at System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest) 
at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) 
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.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) 
at System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest) 
at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) 
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.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) 
at System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest) 
at System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest) 
at System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult) 
at System.Net.TlsStream.CallProcessAuthentication(Object state) 
at System.Threading.ExecutionContext.runTryCode(Object userData) 
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) 
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) 
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) --- End of inner exception stack trace --- 
at System.Net.HttpWebRequest.GetResponse()

來源

2009-10-22 Bill

，證書是否有效的網站？ – kemiller2002

是的......它似乎是任何安全的網站將導致此錯誤 – Bill