alert('System.Net.WebException: 基础连接已经关闭: 发送时发生错误。 ---> System.IO.IOException: 从传输流收到意外的 EOF 或 0 个字节。 在 System.Net.FixedSizeReader.ReadPacket(Byte[] buffer, Int32 offset, Int32 count) 在 System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest) 在 System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) 在 System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest) 在 System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult) 在 System.Threading.ExecutionContext.runTryCode(Object userData) 在 System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) 在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) 在 System.Net.TlsStream.ProcessAuthentication(LazyAsyncResult result) 在 System.Net.TlsStream.Write(Byte[] buffer, Int32 offset, Int32 size) 在 System.Net.PooledStream.Write(Byte[] buffer, Int32 offset, Int32 size) 在 System.Net.ConnectStream.WriteHeaders(Boolean async) --- 内部异常堆栈跟踪的结尾 --- 在 System.Net.HttpWebRequest.GetResponse() 在 PaperDownload.HttpDownload(Page context, String httpUrl)') PaperDownload - Engineering Information Institute
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