ASP.NET SignaiR 实现消息的即时推送，并使用Push.js实现通知的示例代码_实用技巧_

 public class MyConnection1 : PersistentConnection { /// 
 /// 发送消息 /// 
 ///  ///  ///  protected override Task OnConnected(IRequest request, string connectionId) { Debug.WriteLine(connectionId); return Connection.Send(connectionId, "Welcome!");//单推事列 } /// 
 /// 接受客户端消息 /// 
 ///  ///  ///  ///  protected override Task OnReceived(IRequest request, string connectionId, string data) { Debug.WriteLine(data); return Connection.Broadcast(data);//广播 } /// 
 /// 掉线 /// 
 ///  ///  ///  ///  protected override Task OnDisconnected(IRequest request, string connectionId, bool stopCalled) { Debug.WriteLine("掉线"); return base.OnDisconnected(request, connectionId, stopCalled); } /// 
 /// 重连 /// 
 ///  ///  ///  protected override Task OnReconnected(IRequest request, string connectionId) { Debug.WriteLine("重连"); return base.OnReconnected(request, connectionId); } } 

 public void Configuration(IAppBuilder app) { app.MapSignalR("/myconnection"); }

 @{ ViewBag.Title = "Home Page"; Layout = null; } 

 function push(data, url, img) { var imgurl = img != "" ? img : "../Images/icon.png"; Push.create("新通知", { body: data, icon: imgurl, requireInteraction: true, onClick: function () { window.focus(); this.close(); window.location.href =url; } }); }

 //实时推送 var conn = $.connection("/myconnection"); conn.start().done(function (data) { console.log("已连接服务器,当前GUID为" + data.id); }); //接受服务器的推送 conn.received(function (msg) { console.log("服务器返回消息： " + msg); if (msg != "") { push(msg, "#", "") } }); 

 var context = GlobalHost.ConnectionManager.GetConnectionContext();//获取你当前的Connection连接 context.Connection.Broadcast("我是一条新的推送消息！");//广播推送 

 var context = GlobalHost.ConnectionManager.GetConnectionContext();//获取你当前的Connection连接 context.Connection.Send(connectionId, "Welcome!");//单推事列