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以下の SOAP 応答がC# クライアントで逆シリアル化されない理由を誰か説明してもらえますか? 「リモート サーバーが予期しない応答を返しました: (400) 不正な要求」FaultExceptionというメッセージが表示され、内部例外として「リモート サーバーがエラーを返しました: (400) 不正な要求」というメッセージが表示されます。System.ServiceModel.ProtocolExceptionSystem.Net.WebException

私のクライアント コードでは、svcutil.exe (サービス参照の追加) で定義された複数のコントラクトを使用しています。このリクエストでは、基本認証を使用します。
バインディングのコードは、応答 SOAP の下にあります。

HTTP/1.1 400 Bad Request
Server: gSOAP/2.7
Content-Type: application/soap+xml; charset=utf-8
Content-Length: 2087
Connection: close

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://www.w3.org/2003/05/soap-envelope" 
xmlns:SOAP-ENC="http://www.w3.org/2003/05/soap-encoding"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
xmlns:tns1="http://www.onvif.org/ver10/topics" 
xmlns:tnsacti="http://www.acti.com/2009/event/topics"
xmlns:http="http://tempuri.org/http.xsd" 
xmlns:wsadis="http://schemas.xmlsoap.org/ws/2004/08/addressing" 
xmlns:wsbf="http://docs.oasis-open.org/wsrf/bf-2" 
xmlns:wstop="http://docs.oasis-open.org/wsn/t-1" 
xmlns:wsr="http://docs.oasis-open.org/wsrf/r-2" 
xmlns:tt="http://www.onvif.org/ver10/schema" 
xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl" 
xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" 
xmlns:ns3="http://www.onvif.org/ver10/events/wsdl/PullPointSubscriptionBinding" 
xmlns:ns4="http://www.onvif.org/ver10/events/wsdl/EventBinding" 
xmlns:tev="http://www.onvif.org/ver10/events/wsdl" 
xmlns:ns5="http://www.onvif.org/ver10/events/wsdl/SubscriptionManagerBinding"
xmlns:ns6="http://www.onvif.org/ver10/events/wsdl/NotificationProducerBinding"
xmlns:ns7="http://www.onvif.org/ver10/events/wsdl/NotificationConsumerBinding"
xmlns:wsnt="http://docs.oasis-open.org/wsn/b-2" 
xmlns:tds="http://www.onvif.org/ver10/device/wsdl" 
xmlns:tptz="http://www.onvif.org/ver20/ptz/wsdl"
xmlns:trt="http://www.onvif.org/ver10/media/wsdl"
xmlns:wsa="http://www.w3.org/2005/08/addressing"
xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" 
xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" 
xmlns:ter="http://www.onvif.org/ver10/error">
    <SOAP-ENV:Body>
        <SOAP-ENV:Fault SOAP-ENV:encodingStyle="http://www.w3.org/2003/05/soap-encoding">
            <SOAP-ENV:Code>
                <SOAP-ENV:Value>SOAP-ENV:Sender</SOAP-ENV:Value>
            </SOAP-ENV:Code>
            <SOAP-ENV:Reason>
                <SOAP-ENV:Text xml:lang="en">Method 'GetImagingSettings' not implemented: method name or namespace not recognized
</SOAP-ENV:Text>
            </SOAP-ENV:Reason>
        </SOAP-ENV:Fault>
    </SOAP-ENV:Body>
</SOAP-ENV:Envelope>

C# コード

private T GetClient(ISecurityTokenSelector securityToken, ref ChannelFactory<T> channelFactory) {
    if (ServiceAddress == null)
        throw new ArgumentNullException(string.Format("The service address to the {0} is null", typeof(T).Name));

    var endpointAddress = new EndpointAddress(ServiceAddress.ToString());
    //Gets custom binding
    var binding = BindingFactory.GetBinding(securityToken, false, false);
    channelFactory = new ChannelFactory<T>(binding, endpointAddress);

    if (securityToken is BasicUserNameSecurityTokenSelector) {
        channelFactory.Endpoint.Behaviors.Remove(typeof(ClientCredentials));
        channelFactory.Credentials.UserName.UserName = UserName;
        channelFactory.Credentials.UserName.Password = Password;
    }
    if (securityToken is DigestSecurityTokenSelector) {
        // configure the username credentials on the channel factory 
        var credentials = new UsernameClientCredentials(new UsernameInfo(UserName, Password));

        // replace ClientCredentials with UsernameClientCredentials
        channelFactory.Endpoint.Behaviors.Remove(typeof(ClientCredentials));
        channelFactory.Endpoint.Behaviors.Add(credentials);
    }
    return channelFactory.CreateChannel();
}

private Binding GetCustomBinding(ISecurityTokenSelector token, bool mtomEncoding, bool wsAddressing) {
    var binding = new CustomBinding(CreateBindingElements(mtomEncoding, wsAddressing, token));
    binding.CloseTimeout = TimeSpan.FromSeconds(30.0);
    binding.OpenTimeout = TimeSpan.FromSeconds(30.0);
    binding.SendTimeout = TimeSpan.FromMinutes(10.0);
    binding.ReceiveTimeout = TimeSpan.FromMinutes(3.0);
    return binding;
}

private static IEnumerable<BindingElement> CreateBindingElements(bool mtomEncoding, bool wsAddressing, ISecurityTokenSelector token) {
    if (token is DigestSecurityTokenSelector) {
        TransportSecurityBindingElement transportSecurity = new TransportSecurityBindingElement();
        transportSecurity.EndpointSupportingTokenParameters.SignedEncrypted.Add(new UsernameTokenParameters());

        // here you can require secure transport, in which case you'd probably replace HTTP with HTTPS as well
        transportSecurity.AllowInsecureTransport = true;
        transportSecurity.IncludeTimestamp = false;
        yield return transportSecurity;
    }
    var msgVer = wsAddressing ? MessageVersion.Soap12WSAddressing10 : MessageVersion.Soap12;
    if (mtomEncoding) {
        var encoding = new MtomMessageEncodingBindingElement(msgVer, Encoding.UTF8);
        encoding.ReaderQuotas.MaxStringContentLength = Int32.MaxValue;
        encoding.MaxBufferSize = Int32.MaxValue;
        yield return encoding;
    } else {
        var encoding = new TextMessageEncodingBindingElement(msgVer, Encoding.UTF8);
        encoding.ReaderQuotas.MaxStringContentLength = Int32.MaxValue; //100 * 1024 * 1024
        yield return encoding;
    }

    HttpTransportBindingElement transport = CreateTransportBindingElement(token);
    transport.MaxReceivedMessageSize = Int32.MaxValue; //100L * 1024L * 1024L
    transport.KeepAliveEnabled = false;
    transport.MaxBufferSize = Int32.MaxValue;
    //transport.ProxyAddress = null;
    //transport.BypassProxyOnLocal = true;
    //transport.UseDefaultWebProxy = false;
    transport.TransferMode = TransferMode.Buffered;
    if (token is BasicUserNameSecurityTokenSelector)
        transport.AuthenticationScheme = AuthenticationSchemes.Basic;

    yield return transport;
}

private static HttpTransportBindingElement CreateTransportBindingElement(ISecurityTokenSelector token) {
    if (token != null && token.UseTls) {
        var transport = new HttpsTransportBindingElement();
        transport.RequireClientCertificate = false;
        return transport;
    } else {
        return new HttpTransportBindingElement();
    }
}
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1 に答える 1

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受信者は400 Bad Request、返信のコンテンツ部分に到達する前に を取得しています。

コール スタックは、このエラーがHttpWebRequestレベルで発生し、渡されたことを示しています。

System.ServiceModel.ProtocolException: The remote server returned an unexpected response: (400) Bad Request. ---> System.Net.WebException: The remote server returned an error: (400) Bad Request. 
   at System.Net.HttpWebRequest.GetResponse() 
   at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout) 
   --- End of inner exception stack trace --- 

を取得するFaultExceptionには、200 (または同様の) ステータス コードを受信して​​いる必要があります。

于 2014-05-02T12:02:08.417 に答える