心跳解释

Question

我在服务器应用程序中使用servicestack。 这是启动服务的代码：

        public override void Configure(Container container)
    {
        LogManager.LogFactory = new KCServiceObjects.ServiceLoggerFactory();
        ServiceStack.Text.JsConfig.EmitCamelCaseNames = true;

        Plugins.Add(new ServerEventsFeature()
        {
            HeartbeatInterval = TimeSpan.FromSeconds(60),
            NotifyChannelOfSubscriptions = true,

        });
        Plugins.Add(new ValidationFeature());

        container.Register<IServerEvents>(c => new MemoryServerEvents());
        notifier = new FrontendMessages(container.Resolve<IServerEvents>(), broker);
        container.Register(c => notifier);
        container.Register<IWebServiceEventManager>(c =>
                    new WebServiceEventManager(broker));

        SetConfig(new HostConfig
        {  
            DebugMode = true, 
            DefaultContentType = MimeTypes.Json,
            EnableFeatures = Feature.All.Remove(Feature.Html),
            GlobalResponseHeaders =
            {
                { "Access-Control-Allow-Origin", "*" },
                { "Access-Control-Allow-Methods", "GET, POST, PUT, DELETE" },
                { "Access-Control-Allow-Headers", "Content-Type" },
            },
        });
    }

这是.NET客户端：

                clientEvents = new ServerEventsClient(string.Format("http://{0}:{1}/", sIP, 20001), "messages");
            client = (IServiceClient)(clientEvents.ServiceClient);

            clientEvents.Resolver = resolver;
            clientEvents.RegisterReceiver<GlobalReceiver>();
            clientEvents.OnConnect = (e) =>
            {
                var msg = JsonObject.Parse(e.Json);
                ConnectionInfo = new ServerEventConnect
                {
                    HeartbeatIntervalMs = DefaultHeartbeatMs,
                    IdleTimeoutMs = DefaultIdleTimeoutMs,
                }.Populate(e, msg);

                ConnectionInfo.Id = msg.Get("id");
                ConnectionInfo.HeartbeatUrl = msg.Get("heartbeatUrl");
                ConnectionInfo.HeartbeatIntervalMs = msg.Get<long>("heartbeatIntervalMs");
                ConnectionInfo.IdleTimeoutMs = msg.Get<long>("idleTimeoutMs");
                ConnectionInfo.UnRegisterUrl = msg.Get("unRegisterUrl");
                ConnectionInfo.UserId = msg.Get("userId");
                ConnectionInfo.DisplayName = msg.Get("displayName");
                ConnectionInfo.ProfileUrl = msg.Get("profileUrl");


            };

目前心跳不起作用，但我确定我错过了我的代码中的某些内容。查看日志，服务器发送STOP（）然后发送START（）。 如何在c＃中实现？客户端是否必须每隔n秒向服务器发送一条消息？

感谢所有人 莱昂纳多

Answer 1

一些事情：

如果要更改间隔，还需要更改IdleTimeout，例如：

Plugins.Add(new ServerEventsFeature {
    HeartbeatInterval = TimeSpan.FromSeconds(60),
    IdleTimeout = TimeSpan.FromSeconds(180),
});

您无需设置NotifyChannelOfSubscriptions = true，这是默认设置。

您无需注册MemoryServerEvents，这是默认设置：

//container.Register<IServerEvents>(c => new MemoryServerEvents());

永远不要像在ConnectionInfo处理程序中那样自己填充OnConnect，如果操作不正确，可能会破坏行为。

只需注册GlobalResponseHeaders插件，而不是添加CORS CorsFeature，例如：

Plugins.Add(new CorsFeature());