保持与 WCF 的 TcpClient 连接

Question

你好 我需要一个到后台服务器的 Tcp 连接，应用程序将使用此连接发送数据。我四处搜索，发现 WCF 单例适合此任务 这是我在下面使用的代码 sn-p 我的问题是好方法和任何问题都可能与此有关？

 string hostAddress = string.Empty;
           try
            {
                srvHost = new ServiceHost(typeof(ControllerClass));
                NetTcpBinding netTcpBinding = new NetTcpBinding(SecurityMode.None);
                netTcpBinding.Security.Message.ClientCredentialType = MessageCredentialType.None;
                netTcpBinding.Security.Transport.ProtectionLevel =      System.Net.Security.ProtectionLevel.None;
                netTcpBinding.Security.Transport.ClientCredentialType = TcpClientCredentialType.None;

                srvHost.AddServiceEndpoint(typeof(IControllerContract), netTcpBinding, hostAddress);
                srvHost.Credentials.WindowsAuthentication.AllowAnonymousLogons = true;

                ServiceThrottlingBehavior serviceThrottlingBehavior = new ServiceThrottlingBehavior();
                serviceThrottlingBehavior.MaxConcurrentCalls = 1000;
                serviceThrottlingBehavior.MaxConcurrentInstances = 1000;
                serviceThrottlingBehavior.MaxConcurrentSessions = 1000;
                srvHost.Description.Behaviors.Add(serviceThrottlingBehavior);
                srvHost.Open();
            }
            catch (System.TimeoutException timeoutEx)
            {

                Thread.Sleep(1000);
                ReOpenHostConnection();//initialize again Controller Class
            }
            catch (Exception ex)
            {
                Trace.WriteLine(string.Format("cannot start Service Ex:{0}", ex.ToString()), TraceEventType.Error.ToString());
            }

//Controller Class Initialize Code Snippet

TcpClient iTcpClient = new TcpClient();
                iTcpClient.Connect(serverIP, serverPort);
                networkStream = iTcpClient.GetStream();
                aSychDataByte = new byte[iTcpClient.ReceiveBufferSize];
                networkStream.BeginRead(aSychDataByte, 0, incommTcpClient.ReceiveBufferSize, ReadAsych, null);

Answer 1

为什么将 TcpClient 与 WCF 结合使用？如果您需要基于低级别 Tcp 类的低级别 Tcp 通信构建客户端和服务器。如果您需要服务并且不关心消息格式，请使用 WCF。

针对您的问题。你不需要单例。您只需要打开连接。为此，您需要在客户端上创建 WCF 代理实例（开放通道）并调用服务。它将创建与服务实例的连接，直到您关闭客户端代理、服务主机停止工作或超时（默认为 10 分钟客户端不活动）。