dotnet-svcutil生成的WCF代理（甚至是自定义Channel <>）对于有效的SOAP响应返回null

问题描述 投票：3回答：1

使用dotnet-svcutil 2.0.1（dotnet-svcutil --sync --outputDir . http://XXX/?WSDL）和System.ServiceModel。* 4.7.0生成的代理，在下面调用代码和WSDL。代理只是无法反序列化有效响应，而只返回null。在Windows 10和macOS Catalina上都尝试了.NET Core 3.0和3.1，结果均为空。提琴手的请求和响应以及来自服务器（我无法控制的服务器）的WSDL附加。

[使用代理，我正在使用@shmao的set_mode解决方法（https://github.com/dotnet/wcf/issues/2219）来避免'不支持JScript / CSharp脚本'异常。此外，我必须删除Namespace=""属性，以使请求部分也能正常工作。我添加了EventListeners并将所有事件源中的所有内容转储到Verbose，没有警告/错误，只是空值。

我也尝试过基于Channel的MessageContract / DataContract方法，最终还是空结果（！），我无法利用任何基于.NET Core WCF的代码对给定的响应进行反序列化。

将考虑使用.NET Core 3.1 WCF反序列化给定响应的任何解决方案，甚至是部分解决方案，最好使用dotnet-svcutil。相对于非WCF字符串/基于HttpRequest的方法，发现警告/错误甚至手动访问响应字符串仍然是一种改进。

      WSWebServiceSoapPortClient proxy;
      try {
        proxy = new WSWebServiceSoapPortClient(new BasicHttpBinding(),
          new EndpointAddress("http://XXX"));

        await proxy.OpenAsync();
      } catch (Exception e) {
        Console.WriteLine(e.Message);
        return;
      }

      if (proxy.State == System.ServiceModel.CommunicationState.Faulted) {
        System.Console.WriteLine("Unable to connect to the proxy.");
        return;
      }

      var one = new WSUserLoginRequest1(new WSUserLoginRequest() {
        userName = "XXX",
        userPassword = "XXX",
      });
      WSUserLoginResponse1 wsUserLoginResponse = null;

      try {
        wsUserLoginResponse = await proxy.WSUserLoginAsync(one);   // returns null
      } catch (Exception e) {
        Console.WriteLine(e.ToString());
        return;
      }

来自服务器的相关WSDL

<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" 
  xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" 
  xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" 
  xmlns:s="http://www.w3.org/2001/XMLSchema" 
  xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" 
  xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" 
  xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" 
  xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" 
  xmlns:tns="WSWebService" name="WSWebService" targetNamespace="WSWebService">
  <wsdl:types>
    <schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="WSWebService">

      ...

      <s:complexType name="WSUserLoginRequest">
        <s:sequence>
          <s:element name="userName" type="s:string" />
          <s:element name="userPassword" type="s:string" />
        </s:sequence>
      </s:complexType>
      <s:complexType name="WSUserLoginResponse">
        <s:sequence>
          <s:element name="userToken" type="s:string" />
          <s:element name="wsdlVersion" type="s:string" minOccurs="1" maxOccurs="1" default="2.0.0.0" />
          <s:element name="result" type="s:int" />
          <s:element name="resultString" type="s:string" />
        </s:sequence>
      </s:complexType>

      ...

      <wsdl:message name="WSUserLoginSoapIn">
        <wsdl:part name="parameters" type="tns:WSUserLoginRequest" />
      </wsdl:message>
      <wsdl:message name="WSUserLoginSoapOut">
        <wsdl:part name="parameters" type="tns:WSUserLoginResponse" />
      </wsdl:message>

      ...

      <wsdl:operation name="WSUserLogin">
        <wsdl:documentation>Authenticate user using provided username and password.</wsdl:documentation>
        <wsdl:input message="tns:WSUserLoginSoapIn" />
        <wsdl:output message="tns:WSUserLoginSoapOut" />
      </wsdl:operation>

requestresponse

（编辑）

WSUserLoginResponse1生成的dotnet-svcutil 2.0.1的类定义：

[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.Tools.ServiceModel.Svcutil", "2.0.1")]
[System.ServiceModel.MessageContractAttribute(WrapperName = "WSUserLoginResponse", WrapperNamespace = "WSWebService", IsWrapped = true)]
public partial class WSUserLoginResponse1 {

  [System.ServiceModel.MessageBodyMemberAttribute(Namespace = "", Order = 0)]
  public WSUserLoginResponse parameters;

  public WSUserLoginResponse1() {
  }

  public WSUserLoginResponse1(WSUserLoginResponse parameters) {
    this.parameters = parameters;
  }
}

（编辑2）按建议从dotnet-svcutil获得WSUserLoginResponse。

/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.Tools.ServiceModel.Svcutil", "2.0.1")]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.Xml.Serialization.XmlTypeAttribute(Namespace = "WSWebService")]
public partial class WSUserLoginResponse {

  private string userTokenField;

  private string wsdlVersionField;

  private int resultField;

  private string resultStringField;

  public WSUserLoginResponse() {
    this.wsdlVersionField = "2.0.0.0";
  }

  /// <remarks/>
  [System.Xml.Serialization.XmlElementAttribute(Form = System.Xml.Schema.XmlSchemaForm.Unqualified, Order = 0)]
  public string userToken {
    get {
      return this.userTokenField;
    }
    set {
      this.userTokenField = value;
    }
  }

  /// <remarks/>
  [System.Xml.Serialization.XmlElementAttribute(Form = System.Xml.Schema.XmlSchemaForm.Unqualified, Order = 1)]
  public string wsdlVersion {
    get {
      return this.wsdlVersionField;
    }
    set {
      this.wsdlVersionField = value;
    }
  }

  /// <remarks/>
  [System.Xml.Serialization.XmlElementAttribute(Form = System.Xml.Schema.XmlSchemaForm.Unqualified, Order = 2)]
  public int result {
    get {
      return this.resultField;
    }
    set {
      this.resultField = value;
    }
  }

  /// <remarks/>
  [System.Xml.Serialization.XmlElementAttribute(Form = System.Xml.Schema.XmlSchemaForm.Unqualified, Order = 3)]
  public string resultString {
    get {
      return this.resultStringField;
    }
    set {
      this.resultStringField = value;
    }
  }
}

（编辑3）根据建议从wsdl.exe进行WSUserLoginResponse。没有WSUserLoginResponse1

    [System.CodeDom.Compiler.GeneratedCodeAttribute("System.Xml", "4.6.1087.0")]
    [System.SerializableAttribute()]
    [System.Diagnostics.DebuggerStepThroughAttribute()]
    [System.ComponentModel.DesignerCategoryAttribute("code")]
    [System.Xml.Serialization.XmlTypeAttribute(Namespace="WSWebService")]
    public partial class WSUserLoginResponse : object, System.ComponentModel.INotifyPropertyChanged {

        private string userTokenField;

        private string wsdlVersionField;

        private int resultField;

        private string resultStringField;

        public WSUserLoginResponse() {
            this.wsdlVersionField = "2.0.0.0";
        }

        /// <remarks/>
        [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified, Order=0)]
        public string userToken {
            get {
                return this.userTokenField;
            }
            set {
                this.userTokenField = value;
                this.RaisePropertyChanged("userToken");
            }
        }

        /// <remarks/>
        [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified, Order=1)]
        public string wsdlVersion {
            get {
                return this.wsdlVersionField;
            }
            set {
                this.wsdlVersionField = value;
                this.RaisePropertyChanged("wsdlVersion");
            }
        }

        /// <remarks/>
        [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified, Order=2)]
        public int result {
            get {
                return this.resultField;
            }
            set {
                this.resultField = value;
                this.RaisePropertyChanged("result");
            }
        }

        /// <remarks/>
        [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified, Order=3)]
        public string resultString {
            get {
                return this.resultStringField;
            }
            set {
                this.resultStringField = value;
                this.RaisePropertyChanged("resultString");
            }
        }

        public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;

        protected void RaisePropertyChanged(string propertyName) {
            System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;
            if ((propertyChanged != null)) {
                propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
            }
        }
    }

（编辑4）独立的wsdl。

<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" 
  xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" 
  xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" 
  xmlns:s="http://www.w3.org/2001/XMLSchema" 
  xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" 
  xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" 
  xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" 
  xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" 
  xmlns:tns="WSWebService" name="WSWebService" targetNamespace="WSWebService">
  <wsdl:types>
    <schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="WSWebService">
      <s:complexType name="WSUserLoginRequest">
        <s:sequence>
          <s:element name="userName" type="s:string" />
          <s:element name="userPassword" type="s:string" />
        </s:sequence>
      </s:complexType>
      <s:complexType name="WSUserLoginResponse">
        <s:sequence>
          <s:element name="userToken" type="s:string" />
          <s:element name="wsdlVersion" type="s:string" minOccurs="1" maxOccurs="1" default="2.0.0.0" />
          <s:element name="result" type="s:int" />
          <s:element name="resultString" type="s:string" />
        </s:sequence>
      </s:complexType>
    </schema>
  </wsdl:types>
  <wsdl:message name="WSUserLoginSoapIn">
    <wsdl:part name="parameters" type="tns:WSUserLoginRequest" />
  </wsdl:message>
  <wsdl:message name="WSUserLoginSoapOut">
    <wsdl:part name="parameters" type="tns:WSUserLoginResponse" />
  </wsdl:message>
  <wsdl:portType name="WSWebServiceSoapPort">
    <wsdl:operation name="WSUserLogin">
      <wsdl:documentation>Documentation</wsdl:documentation>
      <wsdl:input message="tns:WSUserLoginSoapIn" />
      <wsdl:output message="tns:WSUserLoginSoapOut" />
    </wsdl:operation>
  </wsdl:portType>
  <wsdl:binding name="WSWebServiceSoapBinding" type="tns:WSWebServiceSoapPort">
    <soap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http" />
    <wsdl:operation name="WSUserLogin">
      <soap:operation soapAction="WSUserLogin" style="rpc" />
      <wsdl:input>
        <soap:body use="literal" namespace="WSWebService" />
      </wsdl:input>
      <wsdl:output>
        <soap:body use="literal" namespace="WSWebService" />
      </wsdl:output>
    </wsdl:operation>
  </wsdl:binding>
  <wsdl:service name="WSWebService">
    <wsdl:port name="WSWebServiceSoapPort" binding="tns:WSWebServiceSoapBinding">
      <soap:address location="https://x.x.x.x:x" />
    </wsdl:port>
  </wsdl:service>
</wsdl:definitions>
c# wcf soap .net-core wsdl
1个回答
0
投票

我像您一样使用wsdl文件使用dotnet-svcutil 2.0.1生成c＃代码。

[我使用SoapUI mocking service模拟了SOAP端点，将其触发，然后在您的机器上运行您的代码（连接到本地主机上的模拟端点）。>>

我在打电话给proxy.OpenAsync时很早就遇到了例外。我收到的异常消息是：

来自命名空间的顶级XML元素'参数'引用不同的类型WSUserLoginRequest和WSUserLoginResponse。使用XML属性以指定元素的另一个XML名称或名称空间，或类型。

因此，我进入生成的代码内的WSUserLoginRequest1，并向Namespace的parameters添加了一个值，如here所述：

[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.Tools.ServiceModel.Svcutil", "2.0.1")]
[System.ServiceModel.MessageContractAttribute(WrapperName="WSUserLogin", WrapperNamespace="WSWebService", IsWrapped=true)]
public partial class WSUserLoginRequest1
{
    // replaced Namespace empty string value with my endpoint url
    [System.ServiceModel.MessageBodyMemberAttribute(Namespace="http://localhost:8181/WSUserLogin", Order=0)]
    public WSUserLoginRequest parameters;

    public WSUserLoginRequest1()
    {
    }

    // ...
}

更改之后，它就起作用了，我打电话给proxy.WSUserLoginAsync时得到了响应。

[我希望我知道如何通过将值传递到Namespace的/namespace选项来添加dotnet-svcutil值，但是遵循这些SO帖子（1，2，尽管它们与svcutil相关，不是dotnet-svcutil）仅将名称空间添加到生成文件的其他位置。

我希望这对您的问题有任何价值。

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