wcf 请考虑增加操作超时

发送到 net.tcp://192.168.1.18:8732/CallbackService 的请求操作在配置的超时(00:00:59.9879994)内未收到回复。

分配给此操作的时间可能已经是更长超时的一部分。这可能由于服务仍在处理操作或服务无法发送回复消息。

请考虑增加操作超时(将通道/代理转换为 IContextChannel 并设置 OperationTimeout 属性)并确保服务能够连接到客户端。

网上找了很多资料，都无法解决我的问题。

  INotificationServices proxy;
            DuplexChannelFactory<INotificationServices> channelFactory;
            const string wsDualHttpBinding = "WSDualHttpBinding_INotificationServices";
            const string netTcpBinding = "NetTcpBinding_INotificationServices";
            InstanceContext context = new InstanceContext(new NotificationServiceCallBack());

            channelFactory = new DuplexChannelFactory<INotificationServices>(context, wsDualHttpBinding);
            proxy = channelFactory.CreateChannel();
            proxy.SendNotification("Are u ready?");

            channelFactory = new DuplexChannelFactory<INotificationServices>(context, netTcpBinding);
            proxy = channelFactory.CreateChannel();
            proxy.SendNotification("Are u ready?");

            Console.WriteLine("Press Enter to terminate the client");
            Console.ReadLine();

客户端配置

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <system.serviceModel>
        <client>
            <endpoint address="http://192.168.1.18:8888/CallbackService"
                binding="wsDualHttpBinding" bindingConfiguration="" contract="Library.INotificationServices"
                name="WSDualHttpBinding_INotificationServices" />
            <endpoint address="net.Tcp://192.168.1.18:8732/CallbackService"
                binding="netTcpBinding" bindingConfiguration="" contract="Library.INotificationServices"
                name="NetTcpBinding_INotificationServices" />
        </client>
    </system.serviceModel>
</configuration>

问题在于

context = new InstanceContext(new NotificationServiceCallBack());

这个是无法共用的。

第二个代理必须重新new一个新的InstanceContext对象，才能够正常查询