How to deserialize a WCF soap response message from a file with DataContractSerializer?

问题

When I call a web service operation, WCF deserializes the message to the proxy class with the DataContractSerializer: why couldn't I do the same ?

Here is the soap message in the file ActLoginResponse.xml:

<SOAP-ENV:Envelope xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="urn:PlotiIntf" xmlns:ns2="urn:PlotiIntf-IPloti" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <s:Header xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"/>
    <SOAP-ENV:Body SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
        <ns2:ActLoginResponse>
            <return>
                <ResultCode>0</ResultCode>
                <ResultMessage>Login et password correct.</ResultMessage>
                <Acteur>
                    <Id>IMT_706</Id>
                    <Nom>IMA PROTECT</Nom>
                    <Prenom/>
                    <nbFI>0</nbFI>
                    <FonctionActeur>TS</FonctionActeur>
                    <Timeout>30</Timeout>
                </Acteur>
                <ZneGeoList xsi:nil="true"/>
            </return>
        </ns2:ActLoginResponse>
    </SOAP-ENV:Body>
</SOAP-ENV:Envelope>

The WCF proxy code for the corresponding ActLoginResponse class is :

[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")]
[System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Advanced)]
[System.ServiceModel.MessageContractAttribute(WrapperName="ActLoginResponse", WrapperNamespace="urn:PlotiIntf-IPloti", IsWrapped=true)]
public partial class ActLoginResponse {

    [System.ServiceModel.MessageBodyMemberAttribute(Namespace="", Order=0)]
    public Ploti.PlotiClient.LoginResponseType @return;

    public ActLoginResponse() {
    }

    public ActLoginResponse(Ploti.PlotiClient.LoginResponseType @return) {
        this.@return = @return;
    }
}

So I need to parse the XML to an object instance of type ActLoginResponse.

Here is how I perform the parsing:

        ActLoginResponse body;
        FileStream stream = new FileStream("Requests\\ActLoginResponse.xml", FileMode.Open);
        XmlReader xmlReader = XmlReader.Create(stream);

        xmlReader.MoveToContent();
        xmlReader.ReadStartElement();
        xmlReader.MoveToContent();
        xmlReader.ReadStartElement();
        xmlReader.MoveToContent();
        xmlReader.ReadStartElement();
        xmlReader.MoveToContent();

        // the the reader is on the element ActLoginResponse (that is confirmed by a Log.Debug( xmlReader.ReadOuterXml());

        // I create The DataContractSerializer: exception if nampespace is not specified
        DataContractSerializer dataContract = new `DataContractSerializer`(typeof(ActLoginResponse), "ActLoginResponse", "urn:PlotiIntf-IPloti");

        ActLoginResponse actLogin = dataContract.ReadObject(xmlReader, true);

The actLogin object is created, but the content actLogin.return is allways NULL ! Did I miss something ?

回答1:

I used the WSDL you had provided from the other question and created a proxy class from it.

Using the above XML, I seem to have no issues deserializing into the ActLoginResponse by the following:

Message m = Message.CreateMessage(XmlReader.Create("C:\\testSvc\\login.xml"), int.MaxValue, MessageVersion.Soap11);
SoapReflectionImporter importer = new SoapReflectionImporter(new SoapAttributeOverrides(), "urn:PlotiIntf-IPloti");
XmlTypeMapping mapp = importer.ImportTypeMapping(typeof(ActLoginResponse));
XmlSerializer xmlSerializer = new XmlSerializer(mapp); //typeof(T), xr
var o = (ActLoginResponse)xmlSerializer.Deserialize(m.GetReaderAtBodyContents());

reference

回答2:

You should be able to use XmlSerializer to accomplish this with help of SoapReflectionImporter.

var importer = new SoapReflectionImporter("urn:PlotiIntf-IPloti");
var mapping = importer.ImportTypeMapping(typeof(ActLoginResponse));
var serializer = new XmlSerializer(mapping);
var response = serializer.Deserialize(reader) as ActLoginResponse;

The SoapReflectionImporter class provides type mappings to SOAP-encoded message parts, as defined in a Web Services Description Language (WSDL) document. It is used only when a Web service or client specifies SOAP encoding, as described in Section 5 of the SOAP 1.1 specification.

The following command was used to generate your client contracts from WSDL

SvcUtil.exe IPlotiservice.wsdl /t:code /serviceContract

来源：https://stackoverflow.com/questions/43741674/how-to-deserialize-a-wcf-soap-response-message-from-a-file-with-datacontractseri

标签

wcf

soap

datacontractserializer