什麼時候關閉了來自瀏覽器的SignalR連接

我正在用SignalR 2.0創建一個小聊天應用程序（就像每個人一樣）。什麼時候關閉了來自瀏覽器的SignalR連接

我有一個win8.1應用程序，當應用程序關閉時，集線器收到OnDisconnected事件並從集線器列表中刪除用戶。集線器發送給用戶已離開聊天的每個客戶端，以便我們可以看到用戶已離開。

但是當我在網頁中使用SignalR和Javascript以及網頁被關閉，該中心沒有得到通知的標籤/瀏覽器關閉...

任何人任何想法連接如何能被關閉？

我所編碼：

創業中心

[assembly: OwinStartup(typeof(ChatServer.Startup))] 

namespace ChatServer 
{ 
public class Startup 
{ 
    public void Configuration(IAppBuilder app) 
    { 
     // Map all hubs to "/signalr" 
     app.MapSignalR(); 
    } 
} 
}

樞紐

[HubName("ChatHub")] 
public class ChatHub : Hub 
{ 
    private static List<User> Users = new List<User>(); 
    public void Send(string name, string message) 
    { 
     // Call the broadcastMessage method to update clients. 
     Clients.All.broadcastMessage(name, message, DateTime.Now); 
    } 

    public void UserConnected(string name) 
    { 
     Clients.Caller.connected(JsonConvert.SerializeObject(Users)); 
     User user = new User() { Name = name, ConnectionID = Context.ConnectionId }; 
     Clients.Others.userConnected(JsonConvert.SerializeObject(user)); 
     Users.Add(user); 
    } 

    public void UserLeft() 
    { 
     if(Users.Any(x=>x.ConnectionID == Context.ConnectionId)) 
     { 
      User user = Users.First(x => x.ConnectionID == Context.ConnectionId); 
      Users.Remove(user); 
      Clients.Others.userLeft(JsonConvert.SerializeObject(user), Context.ConnectionId); 
     } 
    } 

    public override System.Threading.Tasks.Task OnDisconnected() 
    { 
     // Only called when win8.1 app closes 
     // Not called when browsers closes page 
     UserLeft(); 
     return base.OnDisconnected(); 
    } 
}

HTML - 使用Javascript：

的Javascript：

chat = new function() { 

var ChatHub; 
// Connecting to the hub 
this.attachEvents = function() { 
    if ($.connection != null) { 
     ChatHub = $.connection.ChatHub; 
     $.connection.hub.start({ transport: 'auto' }, function() { 
      // Register client on hub 
      ChatHub.server.userConnected("web name"); 
     }); 
    } 

    this.send = function (name,message) { 
     if ($.connection != null) { 
       //Send chat message 
       ChatHub.server.send(name, message).fail(function (e) { 
        alert(e); 
       }); 
     } 
    } 
    } 
}; 

window.onbeforeunload = function (e) { 
    //This is called when we close the page 
    $.connection.hub.stop(); 
    return "You killed me! :'("; 
};

Win8.1客戶

internal async void ConnectToHub(string userName) 
    { 
     try 
     { 
      HubConnection hubConnection = new HubConnection(SERVER_PROXY); 
      chat = hubConnection.CreateHubProxy("ChatHub"); 
      Context = SynchronizationContext.Current; 

      MakeHubFunctionsAvailableOnClient(); 

      await hubConnection.Start(); 
      // Register client on hub 
      await chat.Invoke("UserConnected", userName); 
     } 
     catch (Exception) 
     { 
      throw; 
     } 
    } 

    private void MakeHubFunctionsAvailableOnClient() 
    { 
     //Receive chat messages 
     chat.On<string, string, DateTime>("broadcastMessage", 
       (name, message, date) => Context.Post(
        delegate { 
         Messages.Add(new UserMessage() { Message = message, User = name, Date = date }); 
        }, null 
       ) 
     ); 

     //Receive all online users 
     chat.On<string>("connected", 
       (users) => Context.Post(
        delegate 
        { 
         List<User> userList = JsonConvert.DeserializeObject<List<User>>(users); 
         foreach (User user in userList) 
         { 
          Users.Add(user); 
         } 
         Messages.Add(new UserMessage() { Message = "CONNECTED", User = "System", Date = DateTime.Now }); 
        }, null 
       ) 
     ); 

     //New user connected 
     chat.On<string>("userConnected", 
       (user) => Context.Post(
        delegate 
        { 
         User newUser = JsonConvert.DeserializeObject<User>(user); 
         Users.Add(newUser); 
         Messages.Add(new UserMessage() { Message = newUser.Name + " CONNECTED", User = "System", Date = DateTime.Now }); 
        }, null 
       ) 
     ); 

     //User left, remove user from list on client 
     chat.On<string>("userLeft", 
       (user) => Context.Post(
        delegate 
        { 
         User newUser = JsonConvert.DeserializeObject<User>(user); 
         User y = Users.First(x=>x.ConnectionID == newUser.ConnectionID); 
         bool ux = Users.Remove(y); 
         Messages.Add(new UserMessage() { Message = newUser.Name + " left the conversation", User = "System", Date = DateTime.Now }); 
        }, null 
       ) 
     ); 
    }

我中心不觸發OnDisconnected，當我關閉標籤/瀏覽器/導航到其他網站該網站是一個燎頁網站（暫時）

我用什麼瀏覽器？
Chrome：版本32.0.1700.68 beta -m
Internet Explorer 11

來源

2014-01-09 brouckaertd

什麼時候關閉了來自瀏覽器的SignalR連接

回答

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