Question

我希望有人能够帮助我，我还没有用C＃编程一段时间。我确信答案很简单，但我无法理解它。

我有以下内容，我调用System.Web.Services.Protocols.SoapHttpClientProtocol。我已经包含了我所拥有的众多电话中的一个。

public partial class ExchangeService : System.Web.Services.Protocols.SoapHttpClientProtocol   {

//Lots of code using Soap 

    [System.Web.Services.Protocols.SoapDocumentMethodAttribute("getDetailsLite", RequestNamespace="http://www.MySite.com/ExchangeService/", ResponseNamespace=" http://www.MySite.com/ExchangeService/", ", Use=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]
    [return: System.Xml.Serialization.XmlElementAttribute("Result", IsNullable=true)]
    public GetDetailsLiteResp getDetailsLite(getDetailsLiteReq request) {
        object[] results = this.Invoke("getDetailsLite", new object[] {
                    request});
        return ((getDetailsLiteResp)(results[0]));
    }

    public void getDetailsLiteAsync(getDetailsLiteReq request) {
        this. getDetailsLiteAsync(request, null);
    }

    public void getDetailsLiteAsync (getDetailsLiteReq request, object userState) {
        if ((this.getDetailsLiteOperationCompleted == null)) {
            this.getDetailsLiteOperationCompleted = new System.Threading.SendOrPostCallback(this.OngetDetailsLiteOperationCompleted);
        }
        this.InvokeAsync("getDetailsLite", new object[] {
                    request}, this. getDetailsLiteOperationCompleted, userState);
    }
}

我想覆盖SoapHttpClientProtocol调用的WebRequest。 SoapHttpClientProtocol看起来像这样（我相信是从System.Web.Services.dll调用的）

namespace System.Web.Services.Protocols  {
    public class SoapHttpClientProtocol : HttpWebClientProtocol    {
    public SoapHttpClientProtocol();
    public SoapProtocolVersion SoapVersion { get; set; }
    protected IAsyncResult BeginInvoke(string methodName, object[] parameters, AsyncCallback callback, object asyncState);
    public void Discover();
    protected object[] EndInvoke(IAsyncResult asyncResult);
    protected virtual XmlReader GetReaderForMessage(SoapClientMessage message, int bufferSize);

    //This line is the one i am talking about
    protected override WebRequest GetWebRequest(Uri uri);

    protected virtual XmlWriter GetWriterForMessage(SoapClientMessage message, int bufferSize);
    protected object[] Invoke(string methodName, object[] parameters);
    protected void InvokeAsync(string methodName, object[] parameters, SendOrPostCallback callback);
    protected void InvokeAsync(string methodName, object[] parameters, SendOrPostCallback callback, object userState);
    }
}

我需要保护覆盖WebRequest GetWebRequest（Uri uri）看起来像这样：

protected override WebRequest GetWebRequest(Uri uri)  {
    HttpWebRequest webRequest = (HttpWebRequest) base.GetWebRequest(uri);
    webRequest.KeepAlive = false;
    webRequest.ProtocolVersion=HttpVersion.Version10;
    return webRequest;
}

有谁知道我会怎么做？我无法直接在SoapHttpClientProtocol中编辑它，我很肯定我不应该这样做。

感谢您提供的任何帮助

Answer 1

由于ExchangeService是partial class，您可以创建另一个添加到ExchangeService声明的文件，并为GetWebRequest声明一个合适的覆盖。这将允许您为ExchangeService编写自定义功能，同时如果WSDL发生更改，它仍然可以更新。

有关详细信息，请参阅MSDN文章Partial Classes and Methods (C# Programming Guide)。

Answer 2

子类吗？根类 WebClientProtocol 中的 GetWebRequest 为marked as virtual，因此您可以覆盖该方法。

public class MyHttpProtocol : SoapHttpClientProtocol  
{
    public override WebRequest GetWebRequest(Uri uri)
    {
        // Base request:
        WebRequest request = base.GetWebRequest(uri);

        // You code goes here...

        // Return...
        return request;
    }
}

然后在服务类中根据需要使用 MyHttpProtocol 。

Soap中的WebRequest

2 个答案: