调用soap服务时dispatchOperation.Formatter NULL [英] dispatchOperation.Formatter NULL when call soap service

问题描述

我有 IDispatchMessageFormatter 实现

I have IDispatchMessageFormatter implementation

    class ServerMessageFormatter : IDispatchMessageFormatter
{
    private IDispatchMessageFormatter Formatter;

    public ServerMessageFormatter(IDispatchMessageFormatter formatter)
    {
        this.Formatter = formatter;
    }

    public void DeserializeRequest(System.ServiceModel.Channels.Message message, object[] parameters)
    {
        Formatter.DeserializeRequest(message, parameters);
    }
}

在OperationBegavior中

and in OperationBegavior

        public void ApplyDispatchBehavior(OperationDescription operationDescription, DispatchOperation dispatchOperation)
    {
        ServerMessageFormatter Formatter = new ServerMessageFormatter(dispatchOperation.Formatter);
        dispatchOperation.Formatter = Formatter;
    }

并调用soap服务

  GetInfoRequest message = CheckedFields;
    string soap = @"<?xml version=""1.0"" encoding=""utf-8""?>
            <soap12:Envelope xmlns:soap12=""http://www.w3.org/2003/05/soap-envelope"">
              <soap12:Header>
                <Action soap12:mustUnderstand=""1"" xmlns=""http://www.w3.org/2005/08/addressing"">ServiceModel/IService/GetSoapData</Action>
              </soap12:Header>
            <soap12:Body>
        <GetInfoRequest  xmlns=""ServiceModel"">
            <Data xmlns:d4p1=""http://schemas.microsoft.com/2003/10/Serialization/Arrays"" xmlns:i=""http://www.w3.org/2001/XMLSchema-instance""/>
        </GetInfoRequest>
        </soap12:Body>
        </soap12:Envelope>";
    XmlSerializer serializer = new XmlSerializer(typeof(GetInfoRequest));
    HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create("http://dev.add.renault.com/Service.svc/soap");
    MemoryStream stream1 = new MemoryStream();
    serializer.Serialize(stream1, message);
    stream1.Position = 0;
    StreamReader sr = new StreamReader(stream1);
    string t = sr.ReadToEnd();
    t = t.Remove(0, 22).Trim();
    t = string.Format(soap, t);
    ASCIIEncoding encoding = new ASCIIEncoding();
    request.Timeout = 99999999;
    request.ContentLength = t.Length;
    request.Method = "POST";
    request.ContentType = "application/soap+xml; charset=utf-8";
    request.Accept = "application/soap+xml; charset=utf-8";

    using (Stream stm = request.GetRequestStream())
    {
        using (StreamWriter stmw = new StreamWriter(stm))
        {
            stmw.Write(t);
        }
    }

    var response = (HttpWebResponse)request.GetResponse();
    var abc = new StreamReader(response.GetResponseStream());

问题是，当我调用 REST 服务并在 DeserializeRequest 中设置断点时，我看到 Formatter 已从操作行为中设置了值.但是当调用soap服务时，我的格式化程序具有空值并且反序列化被中止.为什么在调用肥皂时我有这个问题?有什么想法吗?

Problem is that when I call my REST service and set breakpoint in DeserializeRequest I see that Formatter has set value from Operation Behavior. But when call soap service my Formatter has null value and deserialization was aborted. Why when calling soap I have that problem? Any idea?

不幸的是，我无法在操作行为中触发断点并查看 dispatchOperation 的值...

Unfortunatelly I can not fire breakpoint in Operaration Behavior and see what value have dispatchOperation...

推荐答案

您没有展示如何配置服务以添加自定义 IDispatchMessageFormatter 扩展.所以只是在这里猜测一下，您可能只将它添加到 webHttpBinding 端点，而不是基于soap的绑定端点.如果您正在使用 WebHttpBehavior 方法(GetRequestDispatchFormatter & GetReplyDispatchFormatter)，那么这将不适用于您的soap 端点.此博文很好地概述了如何将 IDispatchMessageFormatter 与 webHttpBinding 和 basicHttpBinding 结合使用.

You don't show how you configure your service to add your custom IDispatchMessageFormatter extension. So just taking a guess here, you may be adding it only to the webHttpBinding endpoint and not to the soap based binding endpoint. If you are using the WebHttpBehavior methods (GetRequestDispatchFormatter & GetReplyDispatchFormatter) then this won't apply to your soap endpoints. This blog post has a good overview of how to use IDispatchMessageFormatter with webHttpBinding and basicHttpBinding.

文章中显示如何将自定义消息格式化程序添加到 basicHttpBinding 的具体代码如下.在该部分之前，他解释了为什么需要这种方法.

The specific code in the article that shows how to add the a custom message formatter to the basicHttpBinding is below. Just prior to that section, he explains why this approach is necessary.

    //--- snipped ---//

    string baseAddress = "http://" + Environment.MachineName + ":8000/Service";
    ServiceHost host = new ServiceHost(typeof(Service), new Uri(baseAddress));
    ServiceEndpoint endpoint = host.AddServiceEndpoint(typeof(ITest), new BasicHttpBinding(), "");
    endpoint.Contract.Operations.Find("Add").Behaviors.Add(new MyOperationBehaviorAttribute());
    host.Open();

    //--- snipped ---//

这篇关于调用soap服务时dispatchOperation.Formatter NULL的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！