httpWebRequest调用wcf服务时url出现问题

Question

当我手动调用 wcf 服务时，我应该在 url 位置输入什么：

HttpWebRequest httpWebRequest = WebRequest.Create(url)as HttpWebRequest;

应该有我的 svc 文件的 url

http://localhost/service/LMTService.svc

或 wsdl

http://localhost/service/LMTService.svc?wsdl

或服务操作的 url 吗？

http://localhost/service/LMTService.svc/soap/GetSerializedSoapData

Answer 1

这取决于端点的绑定。如果使用 SOAP 绑定（即 basicHttpBinding、wsHttpBinding 等），请求 URI 应为端点 地址（而不是服务地址） 。此外，在某些 SOAP 版本（例如 basicHttpBinding 中使用的 SOAP11）中，您需要将操作指定为 HTTP 标头。如果您使用 webHttpBinding（具有 webHttp 行为），则地址是端点的地址加上操作的 UriTemplate（默认情况下只是方法名称）你想打电话。

下面的代码显示了一个基于 HttpWebRequest 的请求被发送到两个端点，一个使用 BasicHttpBinding，一个使用 WebHttpBinding。

public class StackOverflow_7525850
{
    [ServiceContract]
    public interface ITest
    {
        [OperationContract]
        [WebInvoke(BodyStyle = WebMessageBodyStyle.WrappedRequest)]
        int Add(int x, int y);
    }
    public class Service : ITest
    {
        public int Add(int x, int y)
        {
            return x + y;
        }
    }
    public static string SendRequest(string uri, string method, string contentType, string body, Dictionary<string, string> headers)
    {
        string responseBody = null;

        HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(uri);
        req.Method = method;
        if (headers != null)
        {
            foreach (string headerName in headers.Keys)
            {
                req.Headers[headerName] = headers[headerName];
            }
        }
        if (!String.IsNullOrEmpty(contentType))
        {
            req.ContentType = contentType;
        }

        if (body != null)
        {
            byte[] bodyBytes = Encoding.UTF8.GetBytes(body);
            req.GetRequestStream().Write(bodyBytes, 0, bodyBytes.Length);
            req.GetRequestStream().Close();
        }

        HttpWebResponse resp;
        try
        {
            resp = (HttpWebResponse)req.GetResponse();
        }
        catch (WebException e)
        {
            resp = (HttpWebResponse)e.Response;
        }

        if (resp == null)
        {
            responseBody = null;
            Console.WriteLine("Response is null");
        }
        else
        {
            Console.WriteLine("HTTP/{0} {1} {2}", resp.ProtocolVersion, (int)resp.StatusCode, resp.StatusDescription);
            foreach (string headerName in resp.Headers.AllKeys)
            {
                Console.WriteLine("{0}: {1}", headerName, resp.Headers[headerName]);
            }
            Console.WriteLine();
            Stream respStream = resp.GetResponseStream();
            if (respStream != null)
            {
                responseBody = new StreamReader(respStream).ReadToEnd();
                Console.WriteLine(responseBody);
            }
            else
            {
                Console.WriteLine("HttpWebResponse.GetResponseStream returned null");
            }
        }

        Console.WriteLine();
        Console.WriteLine("  *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*  ");
        Console.WriteLine();

        return responseBody;
    }
    public static void Test()
    {
        string baseAddress = "http://" + Environment.MachineName + ":8000/Service";
        ServiceHost host = new ServiceHost(typeof(Service), new Uri(baseAddress));
        host.AddServiceEndpoint(typeof(ITest), new BasicHttpBinding(), "basic");
        host.AddServiceEndpoint(typeof(ITest), new WebHttpBinding(), "web").Behaviors.Add(new WebHttpBehavior());
        host.Open();
        Console.WriteLine("Host opened");

        string soapBody = @"<s:Envelope xmlns:s=""http://schemas.xmlsoap.org/soap/envelope/"">
  <s:Body>
    <Add xmlns=""http://tempuri.org/"">
      <x>44</x>
      <y>55</y>
    </Add>
  </s:Body>
</s:Envelope>";
        SendRequest(baseAddress + "/basic", "POST", "text/xml", soapBody, new Dictionary<string, string> { { "SOAPAction", "http://tempuri.org/ITest/Add" } });

        SendRequest(baseAddress + "/web/Add", "POST", "text/xml", "<Add xmlns=\"http://tempuri.org/\"><x>55</x><y>66</y></Add>", null);

        Console.Write("Press ENTER to close the host");
        Console.ReadLine();
        host.Close();
    }
}