System.Net.WebException: 基础连接已经关闭: 接收时发生错误。 ---> System.IO.IOException: 无法从传输连接中

方便面丶 2018-05-22 11:46:39

System.Net.WebException: 基础连接已经关闭: 接收时发生错误。 ---> System.IO.IOException: 无法从传输连接中读取数据: 远程主机强迫关闭了一个现有的连接。。 ---> System.Net.Sockets.SocketException: 远程主机强迫关闭了一个现有的连接。
在 System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
在 System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
--- 内部异常堆栈跟踪的结尾 ---
在 System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
在 System.Net.PooledStream.Read(Byte[] buffer, Int32 offset, Int32 size)
在 System.Net.Connection.SyncRead(HttpWebRequest request, Boolean userRetrievedStream, Boolean probeRead)
--- 内部异常堆栈跟踪的结尾 ---
在 System.Net.HttpWebRequest.GetResponse()
在 System.Xml.XmlDownloadManager.GetNonFileStream(Uri uri, ICredentials credentials, IWebProxy proxy, RequestCachePolicy cachePolicy)
在 System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri, String role, Type ofObjectToReturn)
在 System.Xml.XmlTextReaderImpl.FinishInitUriString()
在 System.Xml.XmlReaderSettings.CreateReader(String inputUri, XmlParserContext inputContext)
在 ZT.DAL.ShenDa.Auth.AuthUser(String UserName, String PassWord, String& Msg)
在 ZT.WebApi.Controllers.AuthController.AuthUser()*****

代码
HttpWebResponse response = null;
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (string.IsNullOrEmpty(postDataStr) ? "" : "?") + postDataStr);
request.Timeout = 30000; // 设置超时时间,单位毫秒。默认100000毫秒，100秒
try
{
request.Method = "GET";
request.ContentType = "application/xml";
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)";
ServicePointManager.CheckCertificateRevocationList = true;
ServicePointManager.DefaultConnectionLimit = 100;
ServicePointManager.Expect100Continue = false;
//ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
request.KeepAlive = true;
request.ProtocolVersion = HttpVersion.Version10;
request.Referer = "";
request.AllowAutoRedirect = true;
request.Timeout = 5 * 60 * 1000; // 5 minutes

response = (HttpWebResponse)request.GetResponse();

Stream myResponseStream = response.GetResponseStream();
StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
string retString = myStreamReader.ReadToEnd();

myStreamReader.Close();
myStreamReader.Dispose();
myResponseStream.Close();
myResponseStream.Dispose();
return retString;

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