在 IIS 上使用 wcf 服务时引发 System.ServiceModel.EndpointNotFoundException

Question

我创建了一个 WCF 服务来上传文件，并且 WCF 服务托管在 Windows IIS 上。我还有一个客户端通过 HTTPS 使用这个 WCF 服务，目前客户端和服务在同一台机器上。代码如下：

IService1.cs：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;

namespace WcfService1
{
    // NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "IService1" in both code and config file together.
    [ServiceContract]
    public interface IService1
    {


        [OperationContract]
        void UploadFile(RemoteFileInfo request);


        // TODO: Add your service operations here
    }


    [MessageContract]
    public class RemoteFileInfo : IDisposable
    {
        [MessageHeader(MustUnderstand = true)]
        public string FilePath;

        /*
        [MessageHeader(MustUnderstand = true)]
        public string DestinationDirectory;
        */

        [MessageBodyMember(Order = 1)]
        public System.IO.Stream FileByteStream;

        public void Dispose()
        {
            if (FileByteStream != null)
            {
                FileByteStream.Close();
                FileByteStream = null;
            }
        }
    }
}

Service1.cvs.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.Text;
using System.IO;
using System.ServiceModel.Web;
using System.Diagnostics;

namespace WcfService1
{
    // NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "Service1" in code, svc and config file together.
    // NOTE: In order to launch WCF Test Client for testing this service, please select Service1.svc or Service1.svc.cs at the Solution Explorer and start debugging.
    public class Service1 : IService1
    {

        public void UploadFile(RemoteFileInfo request)
        {
            FileStream targetStream = null;
            Stream sourceStream = request.FileByteStream;

            //string destinationDirectory = request.DestinationDirectory;
            Console.WriteLine(request.FilePath);
            string fileName = Path.GetFileName(request.FilePath);

            string filePath = Path.Combine("C:\\upload", fileName);

            using (targetStream = new FileStream(filePath, FileMode.Create,
                                  FileAccess.Write, FileShare.None))
            {


                const int bufferLen = 65000;
                byte[] buffer = new byte[bufferLen];
                int count = 0;
                while ((count = sourceStream.Read(buffer, 0, bufferLen)) > 0)
                {

                    targetStream.Write(buffer, 0, count);
                }
                targetStream.Close();
                sourceStream.Close();
            }
        }


    }
}

web.config：

<?xml version="1.0"?>
<configuration>

  <appSettings>
    <add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
  </appSettings>
  <system.web>
    <compilation targetFramework="4.5" />
    <httpRuntime targetFramework="4.5"/>
  </system.web>
  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <!-- To avoid disclosing metadata information, set the values below to false before deployment -->
          <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
          <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
          <serviceDebug includeExceptionDetailInFaults="false"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <protocolMapping>
        <add binding="basicHttpsBinding" scheme="https" />
    </protocolMapping>    
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
    <!--
        To browse web app root directory during debugging, set the value below to true.
        Set to false before deployment to avoid disclosing web app folder information.
      -->
    <directoryBrowse enabled="true"/>
  </system.webServer>

</configuration>

客户端代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using ClientApp.ServiceReference1;

namespace ClientApp
{
    class Program
    {
        static void Main(string[] args)
        {
            Service1Client client = new Service1Client();

            string FilePath1 = "C:\\Users\\user1\\Desktop\\data.csv";
            System.IO.FileStream stream1 =
            new System.IO.FileStream("C:\\Users\\user1\\Desktop\\data.csv",
            System.IO.FileMode.Open, System.IO.FileAccess.Read);

            string dest = "C:\\upload";
            client.UploadFile(FilePath1, stream1);
            client.Close();

        }
    }
}

此客户端代码在“client.UploadFile(FilePath1, stream1);”行抛出异常：

An unhandled exception of type 'System.ServiceModel.EndpointNotFoundException' occurred in mscorlib.dll

Additional information: There was no endpoint listening at http://localhost:53673/Service1.svc that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.

但是，如果我启动浏览器访问该站点，我可以成功访问 Service1.svc（这意味着我配置了 IIS 并将服务正确发布到 IIS），如下面的屏幕截图：

我想知道问题出在哪里？提前致谢！

编辑：

原始客户端的App.config如下：

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
    </startup>
    <system.serviceModel>
        <bindings>
            <basicHttpBinding>
                <binding name="BasicHttpBinding_IService1" />
            </basicHttpBinding>
        </bindings>
        <client>
            <endpoint address="http://localhost:53673/Service1.svc" binding="basicHttpBinding"
                bindingConfiguration="BasicHttpBinding_IService1" contract="ServiceReference1.IService1"
                name="BasicHttpBinding_IService1" />
        </client>
    </system.serviceModel>
</configuration>

根据建议，我将其更改为：

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
    </startup>
    <system.serviceModel>
        <bindings>
            <basicHttpsBinding>
                <binding name="BasicHttpsBinding_IService1" />
            </basicHttpsBinding>
        </bindings>
        <client>
            <endpoint address="https://localhost:53673/Service1.svc" binding="basicHttpsBinding"
                bindingConfiguration="BasicHttpsBinding_IService1" contract="ServiceReference1.IService1"
                name="BasicHttpsBinding_IService1" />
        </client>
    </system.serviceModel>
</configuration>

现在，我又遇到了一个错误：

An unhandled exception of type 'System.ServiceModel.CommunicationException' occurred in mscorlib.dll

Additional information: An error occurred while making the HTTP request to https://localhost:53673/Service1.svc. This could be due to the fact that the server certificate is not configured properly with HTTP.SYS in the HTTPS case. This could also be caused by a mismatch of the security binding between the client and the server.

如果我可以从浏览器启动网站，我认为证书没有问题。另外，我使用自签名证书，客户端和服务器在同一台机器上。我在想是不是我不能直接更改客户端的app.config，服务的配置有问题？我注意到每次更新客户端服务引用中的服务时，http绑定都会出现在app.config中。我想知道处理它的正确方法是什么？

Answer 1

更改客户端 app.config 文件以指向正确的地址。它目前指向：

<endpoint address="https://localhost:53673/Service1.svc" binding="basicHttpsBinding"

将地址部分更改为屏幕截图中被屏蔽的部分。