在将SOAP消息发送到.NET中的Web服务之前获取该消息

您只需在Submit之前序列化请求对象,如下所示:

var sreq = new SomeSoapRequest();

// ... fill in here ...

var serxml = new System.Xml.Serialization.XmlSerializer(sreq.GetType());
var ms = new MemoryStream();
serxml.Serialize(ms, sreq);
string xml = Encoding.UTF8.GetString(ms.ToArray());

// in xml string you have SOAP request

您需要的是一个SoapExtension。这里有很多很好的例子:

How do I get access to SOAP response

Getting RAW Soap Data from a Web Reference Client running in ASP.net

XML Parse error while processing the SOAP response

其中一篇文章链接到: http://msdn.microsoft.com/en-us/magazine/cc164007.aspx

还可以搜索以下内容: https://stackoverflow.com/search?q=SoapExtension

在同一项目中创建如下类:

public class ClientMessageInspector : System.ServiceModel.Dispatcher.IClientMessageInspector
    {
        #region IClientMessageInspector Members
        public string LastRequestXml { get; private set; }

        public void AfterReceiveReply(ref System.ServiceModel.Channels.Message reply, object correlationState)
        {

        }

        public object BeforeSendRequest(ref System.ServiceModel.Channels.Message request, System.ServiceModel.IClientChannel channel)
        {
            string requestHeaderName = request.Headers.Action.Replace("urn:#",string.Empty);
            LastRequestXml = request.ToString();
            string serializedRequestFile = string.Format(requestHeaderName + "_request_{0}.xml", DateTime.Now.ToString("yyyyMMddHHmmss"));
            string exportedFolder = ConfigurationManager.AppSettings["SubmittedRequestXmLocation"];
            printSoapRequest(request, exportedFolder, serializedRequestFile);

            return request;
        }

        public void printSoapRequest(System.ServiceModel.Channels.Message request, string exportedFolder, string fileName)
        {
            if (exportedFolder.Equals(string.Empty))
                return;

            if (!Directory.Exists(exportedFolder))
            {
                Directory.CreateDirectory(exportedFolder);
            }
            string exportedFile = string.Format("{0}\\{1}", exportedFolder, fileName);
            if (File.Exists(exportedFile))
            {
                File.Delete(exportedFile);
            }

            string strRequestXML = request.ToString();
            XDocument xDoc = XDocument.Parse(strRequestXML);
            XmlWriter xw = XmlWriter.Create(exportedFile);
            xDoc.Save(xw);
            xw.Flush();
            xw.Close();
            LogOutput("Request file exported: " + exportedFile);

        }

    }

    public class CustomInspectorBehavior : IEndpointBehavior
    {
        private readonly ClientMessageInspector clientMessageInspector = new ClientMessageInspector();

        public string LastRequestXml
        {
            get { return clientMessageInspector.LastRequestXml; }
        }

        public string LastResponseXml
        {
            get { return clientMessageInspector.LastRequestXml; }
        }

        public void AddBindingParameters(
            ServiceEndpoint endpoint,
            System.ServiceModel.Channels.BindingParameterCollection bindingParameters)
        {
        }

        public void ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher)
        {
        }

        public void Validate(ServiceEndpoint endpoint)
        {
        }

        public void ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime)
        {
            clientRuntime.MessageInspectors.Add(clientMessageInspector);
        }
    }

然后你可以这样称呼它:

ProxyClass _class = new ProxyClass();
var requestInterceptor = new CustomInspectorBehavior();
           _client.Endpoint.Behaviors.Add(requestInterceptor);

当您调用服务方法时,它将自动执行拦截器并打印输出。使用这种方式,您还可以在发送到服务器之前操作soap消息!

其他想法(例如利用SoapExtension,或创建“间谍”类) How do I get access to SOAP response )很有趣,但不能在.NET核心中使用。但生成的SOAP代理类仍然只是一个隐藏的WCF客户机,因此IClientMessageInspector方法非常有效,即使对于调用旧SOAP web服务的.NET核心Azure函数也是如此。

在上面的示例中,暗示了响应wireup,但未完全显示。此外,在最新的.NET核心API中, MessageInspectors ClientMessageInspectors 和 Behaviors EndpointBehaviors

public class SoapMessageInspector : IClientMessageInspector
{
    public string LastRequestXml { get; private set; }
    public string LastResponseXml { get; private set; }

    public object BeforeSendRequest(ref Message request, IClientChannel channel)
    {
        LastRequestXml = request.ToString();
        return request;
    }

    public void AfterReceiveReply(ref Message reply, object correlationState)
    {
        LastResponseXml = reply.ToString();
    }
}

public class SoapInspectorBehavior : IEndpointBehavior
{
    private readonly SoapMessageInspector inspector_ = new SoapMessageInspector();

    public string LastRequestXml => inspector_.LastRequestXml;
    public string LastResponseXml => inspector_.LastResponseXml;

    public void AddBindingParameters(ServiceEndpoint endpoint, BindingParameterCollection bindingParameters)
    {
    }

    public void ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher)
    {
    }

    public void Validate(ServiceEndpoint endpoint)
    {
    }

    public void ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime)
    {
        clientRuntime.ClientMessageInspectors.Add(inspector_);
    }
}

然后可以这样设置:

    var client = new ServiceClient();
    var soapInspector = new SoapInspectorBehavior();
    client.Endpoint.EndpointBehaviors.Add(soapInspector);

在客户端代理上调用web服务调用后, soapInspector.LastRequestXml 和 soapInspector.LastResponseXml

将其添加到web.config或App.config文件的元素中。它将在项目的bin/Debug文件夹中创建一个trace.log文件。或者,可以使用initializeData属性为日志文件指定绝对路径。

  <system.diagnostics>
    <trace autoflush="true"/>
    <sources>
      <source name="System.Net" maxdatasize="9999" tracemode="protocolonly">
        <listeners>
          <add name="TraceFile" type="System.Diagnostics.TextWriterTraceListener" initializeData="trace.log"/>
        </listeners>
      </source>
    </sources>
    <switches>
      <add name="System.Net" value="Verbose"/>
    </switches>
  </system.diagnostics>

它警告不允许使用maxdatasize和tracemode属性,但它们会增加可记录的数据量,并避免以十六进制记录所有内容。

1. 像往常一样生成您的web引用。
2. 编写代码来执行您要调用的任何web方法。
4. 创建处理程序或控制器/操作,并按如下方式提取请求流:

using (var reader = new System.IO.StreamReader(Request.InputStream)) { result = reader.ReadToEnd(); }

1. 在其上放置断点并在调试模式下运行。
2. 在客户端上,将SOAP请求的Url设置为新的控制器/处理程序。
3. 运行你的客户。您应该用SOAP消息捕获web应用程序上的断点。