使用DTDvalidation – 强制关闭连接

我正在validation文档中带有DTD的文档,该文档不在我的机器上,它存储在互联网上。

我目前收到以下exception

System.Xml.XmlException: An error has occurred while opening external DTD 'http://xml.cxml.org/schemas/cXML/1.2.020/cXML.dtd': Unable to connect to the remote server ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host 216.109.104.11:80
 at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
 at System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP)
 at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception)
 --- End of inner exception stack trace ---
 at System.Net.HttpWebRequest.GetResponse()
 at System.Xml.XmlDownloadManager.GetNonFileStream(Uri uri, ICredentials credentials)
 at System.Xml.XmlDownloadManager.GetStream(Uri uri, ICredentials credentials)
 at System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri, String role, Type ofObjectToReturn)
 at System.Xml.XmlTextReaderImpl.OpenStream(Uri uri)
 at System.Xml.XmlTextReaderImpl.DtdParserProxy_PushExternalSubset(String systemId, String publicId)
 --- End of inner exception stack trace ---
 at System.Xml.XmlTextReaderImpl.Throw(Exception e)
 at System.Xml.XmlTextReaderImpl.DtdParserProxy_PushExternalSubset(String systemId, String publicId)
 at System.Xml.XmlTextReaderImpl.DtdParserProxy.System.Xml.IDtdParserAdapter.PushExternalSubset(String systemId, String publicId)
 at System.Xml.DtdParser.ParseExternalSubset()
 at System.Xml.DtdParser.ParseInDocumentDtd(Boolean saveInternalSubset)
 at System.Xml.DtdParser.Parse(Boolean saveInternalSubset)
 at System.Xml.XmlTextReaderImpl.ParseDoctypeDecl()
 at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
 at System.Xml.XmlTextReaderImpl.Read()
 at System.Xml.XmlValidatingReaderImpl.Read()
 at System.Xml.XmlLoader.LoadDocSequence(XmlDocument parentDoc)
 at System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace)
 at System.Xml.XmlDocument.Load(XmlReader reader)
 at cXML.ResponseFactory..ctor(HttpRequest request) :: System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host 216.109.104.11:80
 at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
 at System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP)
 at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception)
 --- End of inner exception stack trace ---
 at System.Net.HttpWebRequest.GetResponse()
 at System.Xml.XmlDownloadManager.GetNonFileStream(Uri uri, ICredentials credentials)
 at System.Xml.XmlDownloadManager.GetStream(Uri uri, ICredentials credentials)
 at System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri, String role, Type ofObjectToReturn)
 at System.Xml.XmlTextReaderImpl.OpenStream(Uri uri)
 at System.Xml.XmlTextReaderImpl.DtdParserProxy_PushExternalSubset(String systemId, String publicId) :: System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host 216.109.104.11:80
 at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
 at System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP)
 at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception) 

我知道该文件是可访问的,因为我可以浏览它。 但为什么.NET不能访问它?! 提前致谢。

当我浏览[ http://xml.cxml.org/schemas/cXML/1.2.020/cXML.dtd ] dtd文件时出现以下exception。

XML解析错误:语法错误位置: http : //xml.cxml.org/schemas/cXML/1.2.020/cXML.dtd第15行,第1列:

只需下载dtd文件并尝试在本地访问dtd。 你可以缩小你的问题范围。