在将SOAP消息发送到.NET中的WebService之前获取它

Rom*_*ias 16 .net soap web-services

我正在调用外部HTTPS Web服务.

为了检查出错了什么,所有者需要我发送的SOAP请求.

我有一个Web引用和由VS 2008生成的生成的代理类...

有没有办法在发送之前查看SOAP消息?

我正在考虑一些.net代码...因为我试过的Sniffer没有"看到"web服务调用不知道为什么.

diz*_*128 12

在submit之前,您可以简单地序列化请求对象,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
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And*_*ray 7

@mting923 的建议真的很有帮助,谢谢!

其他想法(例如,利用 SoapExtension,或创建“间谍”类 a la如何访问 SOAP 响应)很有趣,但不能在 .NET Core 中使用。但是生成的 SOAP 代理类仍然只是底层的 WCF 客户端,因此 IClientMessageInspector 方法是一种享受,即使对于调用旧 SOAP Web 服务的 .NET Core Azure 函数也是如此。

在上面的例子中,响应连线是隐含的,但没有完全显示。此外,在最新的 .NET Core API 中,MessageInspectors现在ClientMessageInspectorsBehaviors现在都是EndpointBehaviors. 因此,为了完整起见,以下内容在 .NET Core 3.1 Azure 函数中对我有用:

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_);
    }
}
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然后它可以像这样设置:

    var client = new ServiceClient();
    var soapInspector = new SoapInspectorBehavior();
    client.Endpoint.EndpointBehaviors.Add(soapInspector);
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在客户端代理调用Web服务调用,后soapInspector.LastRequestXmlsoapInspector.LastResponseXml将包含原始SOAP请求和响应(字符串)。


Col*_*son 6

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,您可以使用initializeData 属性指定日志文件的绝对路径。

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


mti*_*923 5

您可以使用IClientMEssageInspector和IEndpointBehavior来完成此任务。我发现使用这种方法可以捕获确切的肥皂​​请求,就像提琴手一样:

在同一项目中创建一个像这样的类:

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);
        }
    }
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然后,您可以像下面这样调用它:

ProxyClass _class = new ProxyClass();
var requestInterceptor = new CustomInspectorBehavior();
           _client.Endpoint.Behaviors.Add(requestInterceptor);
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当您调用service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纵肥皂消息!