asp.net mvc实现简单的实时消息推送

using Microsoft.AspNet.SignalR;

namespace SignalRMvc.ChatHubs
{
 public class ChatHub : Hub
 {
  public void SendMessage(string name,string message)
  {
   // Clients.All.hello();
   Clients.All.receiveMessage(name, message);
   //用户调用客户端的函数
  }
 }
}

using Microsoft.Owin;
using Owin;

[assembly: OwinStartup(typeof(SignalRMvc.ChatHubs.Startup))]

namespace SignalRMvc.ChatHubs
{
 public class Startup
 {
  public void Configuration(IAppBuilder app)
  {
   app.MapSignalR();
   //服务器的hub注册
  }
 }
}

using System.Web.Mvc;

namespace SignalRMvc.Controllers
{
 public class HomeController : Controller
 {
  // GET: Home
  public ActionResult ClientChat()
  {
   return View();
  }
 }
}

@{
 Layout = null;
}

!DOCTYPE html>
html>
head>
 meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 title>/title>
 meta charset="utf-8" />
 link href="~/Content/bootstrap.min.css" rel="stylesheet" />
 @* BootStarp的引入*@
 style>
  #message_box {
   height: 400px;
   overflow-y: scroll;
  }
 /style>
 @* 呈现消息 *@
/head>
body>
 div class="container">
  div class="row">
   div class="jumbotron">
    ul id="message_box">/ul>
   /div>
   发送者名称:input id="text_name" class="form-control" />br />
   消息内容:
   textarea id="text_message" class="form-control" rows="3">/textarea>
   br />
   button id="btn_send" class="btn btn-block btn-success">Send/button>
  /div>
 /div>

 script src="~/scripts/jquery-3.1.0.min.js">/script>
 script src="~/scripts/jquery.signalR-2.2.1.min.js">/script>
 @* 上述引入的两个文件的顺序不以交换，因为下面这个文件依赖于上面那个文件 *@
 script src="~/signalr/hubs">/script>
 !-- 本地没有，动态生成 -->
 script>
  $(function () {
   var $messageBox = $('#message_box');
   var $textMessage = $('#text_message');
   var $textName = $('#text_name');
   //客户端先与服务器连接起来，拿到服务器的代理操作对象
   var hubConnection = $.connection.chatHub;
   //注册客户端函数
    hubConnection.client.receiveMessage = function (name, message) {
    $messageBox.append('li>b>' + name + '/b> say:' + message + '/li>')
   }

   //启动连接到服务器
   $.connection.hub.start().done(function () {
    $('#btn_send').bind('click', function () {
     //调用服务端的函数
     hubConnection.server.sendMessage($textName.val(), $textMessage.val());
    });
   });
  });
 /script>
/body>
/html>