从ASP.Net服务器推送通知 [英] Push notification from an ASP.Net server

问题描述

我有执行某些操作的web服务。当事件发生时，我会想，通知客户端。我的问题是，我能够从客户端其他方式连接到服务器，但不是因为客户端恰好是一个NAT（路由器）的后面。目前，我做的每一分钟来检查通知的请求。这将是很好，如果我能有一个技术，我可以在客户更快的通知，而无需让这么多不必要的请求。

I have a web service that performs some operations. When an event occurs I will like to notify the clients. The problem that I have is that I am able to connect from the client to the server but not the other way around because clients happen to be behind a NAT (router). Currently I am making a request every minute to check for notifications. It would be nice if I can have a technique where I could notify the clients faster without having to make so many unnecessary request.

请注意：
客户端是一个C＃控制台应用程序和服务器是一个asp.net网站。

Note: The client is a c# console application and the server is a asp.net website.

（注意，如果事件在服务器上发生了，我会想通知所有客户端）

(note if an event happens on the server I will like to notify all clients)

推荐答案

使用SignalR。这是微软对抽象出实时服务器，客户端连接新的图书馆，如果你的设置允许，它支持新的WebSockets协议。

Use SignalR. This is Microsoft's new library for abstracting out real time server-client connections and if your setup allows it, it supports the new WebSockets protocol.

从asp.net网站拍摄。客户code

var hubConnection = new HubConnection("http://www.contoso.com/");
IHubProxy stockTickerHubProxy = hubConnection.CreateHubProxy("StockTickerHub");
stockTickerHubProxy.On<Stock>("UpdateStockPrice", 
    stock => Console.WriteLine("Stock update for {0} new price {1}", stock.Symbol, stock.Price));
await hubConnection.Start();

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