[WCF ContractFilter启用可靠会话时不匹配

Question

我在Windows服务中托管了WCF服务。然后，我有一个GUI（客户端），然后与该服务进行通信。最近有报道说，与该服务的通信在闲置10分钟后会停止。

我进行了一些研究，似乎该服务由于不活动而正在放弃连接。因此，我想增加接收超时并启用可靠的会话，并将inactivityTimeout设置为更长。但是，当我同时在WCF服务和客户端app.config文件中执行此操作时，出现以下错误：

设置authenticableSession enabled =“ False”导致客户端和服务运行。 （尽管仅持续10分钟）

进行研究表明，这是由于以下三个原因之一：

• 您在客户和发送者之间有不同的合同。
• 您在客户端和发送者之间使用了不同的绑定。
• 邮件安全设置在客户端和发件人之间不一致。

但是据我所知，客户端和服务器之间的设置/合同是一致的。我希望这是愚蠢的。这是我用于服务和客户端的app.config：

服务

<?xml version="1.0" encoding="utf-8" ?>
<configuration>

  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
  </startup>

  <appSettings>
    <add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
  </appSettings>

  <system.web>
    <compilation debug="true" />
  </system.web>
  <!-- When deploying the service library project, the content of the config file must be added to the host's 
  app.config file. System.Configuration does not support config files for libraries. -->
  <system.serviceModel>
    <bindings>
      <netTcpBinding>
        <binding name="NetTcpBinding_IHwResourceManagerWcfService" receiveTimeout="infinite" >
          <reliableSession enabled="True" inactivityTimeout="infinite"/>
        </binding>
      </netTcpBinding>
    </bindings>
    <client>
      <endpoint address="net.tcp://localhost:8523/HwResourceManagerWcfService"
        binding="netTcpBinding" bindingConfiguration="NetTcpBinding_IHwResourceManagerWcfService"
        contract="WindowsServices.IHwResourceManagerWcfService" name="NetTcpBinding_IHwResourceManagerWcfService">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
    </client>
    <services>
      <service name="MT.Tools.HwResourceManager.WCF.HwResourceManagerWcfService">
        <endpoint address="" binding="netTcpBinding" bindingConfiguration=""
          contract="MT.Tools.HwResourceManager.WCF.IHwResourceManagerWcfService">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexTcpBinding" bindingConfiguration=""
          contract="IMetadataExchange" />
        <host>
          <baseAddresses>
            <add baseAddress="net.tcp://localhost:8523/HwResourceManagerWcfService" />
          </baseAddresses>
        </host>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="">
          <serviceMetadata httpGetEnabled="false" httpsGetEnabled="false" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>

</configuration>

客户

<?xml version="1.0" encoding="utf-8" ?>
<configuration>

    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
    </startup>

  <system.serviceModel>
    <bindings>
      <netTcpBinding>
        <binding name="NetTcpBinding_IHwResourceManagerWcfService" receiveTimeout="infinite" >
          <reliableSession enabled="True" inactivityTimeout="infinite"/>
        </binding>
      </netTcpBinding>
    </bindings>
    <client>
      <endpoint address="net.tcp://localhost:8523/HwResourceManagerWcfService"
        binding="netTcpBinding" bindingConfiguration="NetTcpBinding_IHwResourceManagerWcfService"
        contract="WindowsServices.IHwResourceManagerWcfService" name="NetTcpBinding_IHwResourceManagerWcfService">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
    </client>
    <behaviors>
      <serviceBehaviors>
        <behavior name="">
          <serviceMetadata httpGetEnabled="false" httpsGetEnabled="false" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
    </behaviors>

  </system.serviceModel>

</configuration>

任何帮助将不胜感激。

Answer 1

您的配置中有几个问题。该项目似乎是一个类库项目。请使用WCF服务应用程序模板。然后，应该在IIS中而不是在配置文件中配置服务的基地址。此外，您的绑定配置不会生效，因为您没有在服务端点中应用它。

<endpoint address="" binding="netTcpBinding" bindingConfiguration=""

请参考我的示例。服务器（WCF服务应用程序）。

IService.
    [ServiceContract]
    public interface IService1
    {
        [OperationContract]
        string GetData(string value);
}

Service1.svc

public class Service1 : IService1
    {
        public string GetData(string value)
        {
            return DateTime.Now.ToLongTimeString();
        }
}

Web.config

  <system.serviceModel>
    <services>
      <service name="WcfService3.Service1">
        <endpoint address="" binding="netTcpBinding" 
          contract="WcfService3.IService1">
        </endpoint>
        <endpoint address="mex" binding="mexTcpBinding" 
          contract="IMetadataExchange" />
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <serviceMetadata />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>

然后我们将服务部署在IIS中。在部署它之前，我们应该为net.tcp协议启用Windows功能。在网站上添加对net.tcp协议的支持。然后添加站点绑定。我们需要注意的另一件事是确保以下服务处于运行状态。Client。（通过添加服务引用，客户端代理发送调用）

static void Main(string[] args)
{
    ServiceReference1.Service1Client client = new ServiceReference1.Service1Client();
    //by default, the nettcpbinding uses windows credential, we should provide server windows account.
    client.ClientCredentials.Windows.ClientCredential.UserName = "administrator";
    client.ClientCredentials.Windows.ClientCredential.Password = "abcd1234!";
    try
    {
        var result = client.GetData("Hello");
        Console.WriteLine(result);
    }
    catch (Exception)
    {
        throw;
    }    
}

App.config。

<system.serviceModel>
    <bindings>
        <netTcpBinding>
            <binding name="NetTcpBinding_IService1">
                <security>
                    <transport sslProtocols="None" />
                </security>
            </binding>
        </netTcpBinding>
    </bindings>
    <client>
        <endpoint address="net.tcp://vabqia969vm/Service1.svc" binding="netTcpBinding"
            bindingConfiguration="NetTcpBinding_IService1" contract="ServiceReference1.IService1"
            name="NetTcpBinding_IService1">
            <identity>
                <servicePrincipalName value="host/vabqia969VM" />
            </identity>
        </endpoint>
    </client>
</system.serviceModel>

结果。请随时告诉我是否有什么我可以帮助的。