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我正在研究 ASP.NET WCF 简单的 HelloWorld 示例。我已成功完成服务器端，但在客户端工作时遇到问题。我使用 SVCUTIL.exe 为我生成代理类。

在调试时，我收到以下错误；

An exception of type 'System.InvalidOperationException' occurred in System.ServiceModel.dll but was not handled in user code

Additional information: Could not find endpoint element with name    'WSHttpBinding_IHelloWorldService' and contract 'IHelloWorldService' in the  ServiceModel client configuration section. This might be because no configuration file was found for your application, or because no endpoint element matching this name could be found in the client element.

另一件事，如果我不能从服务器访问 dll 文件，我可以使用 Channel Factory，比如如果我可以访问 WSDL url 链接

在客户端 app.config

<system.serviceModel>
    <bindings>
        <wsHttpBinding>
            <binding name="WSHttpBinding_IHelloWorldService" />
            <binding name="WSHttpBinding_IHelloWorldServiceAsyn" />
        </wsHttpBinding>
    </bindings>
    <client>
        <endpoint address="http://localhost:8087/CreditUnionServices/HelloWorldServices/HelloWorldService"
            binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_IHelloWorldService"
            contract="IHelloWorldService" name="WSHttpBinding_IHelloWorldService">
            <identity>
                <userPrincipalName value="DESKTOP-G6LE8I4\Khurram Zahid" />
            </identity>
        </endpoint>
        <endpoint address="http://localhost:8087/CreditUnionServices/HelloWorldServices/HelloWorldServiceAsyn"
            binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_IHelloWorldServiceAsyn"
            contract="IHelloWorldServiceAsyn" name="WSHttpBinding_IHelloWorldServiceAsyn">
            <identity>
                <userPrincipalName value="xyz\abc" />
            </identity>
        </endpoint>
    </client>
</system.serviceModel>

客户端代理通道工厂

 public class HelloWorldClient
{
    public string SendTestMessage(string name)
    {
        ChannelFactory<IHelloWorldService> _HelloWorldClientService = new ChannelFactory<IHelloWorldService>("WSHttpBinding_IHelloWorldService");

        IHelloWorldService _HelloWorldChannelService = _HelloWorldClientService.CreateChannel();

        var _returnMessage = _HelloWorldChannelService.GetMessage(name);

        ((IClientChannel)_HelloWorldChannelService).Close();

        return _returnMessage;
    }
}

服务器端配置文件

 <system.serviceModel>
<services>
  <service name="App.Services.Managers.HelloWorldManager" behaviorConfiguration="DefaultServiceBehavior">
    <host>
      <baseAddresses>
        <add baseAddress="http://localhost:8087/CreditUnionServices/HelloWorldServices"/>
      </baseAddresses>
    </host>
    <endpoint address="HelloWorldService" binding="wsHttpBinding" contract="App.Services.Contracts.IHelloWorldService"></endpoint>
    <endpoint address="HelloWorldServiceAsyn" binding="wsHttpBinding" contract="App.Services.Contracts.IHelloWorldServiceAsyn"></endpoint>
  </service>
</services>
<behaviors>
  <serviceBehaviors>
    <behavior name="DefaultServiceBehavior">
      <serviceMetadata httpGetEnabled="True" httpsGetEnabled="true"/>
      <serviceDebug includeExceptionDetailInFaults="False" />
    </behavior>
  </serviceBehaviors>
</behaviors>

更新代码

public static class HelloWorldClient 
{
    public static string SendTestMessage(string name)
    {

        HelloWorldServiceClient _helloWorldService = new HelloWorldServiceClient("WSHttpBinding_IHelloWorldService");

        var _returnMessage =  _helloWorldService.GetMessage("mr kz ....");

        return _returnMessage;
    }
}
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