1. using System;using System.Collections.Generic;using System.Linq;using System.Web;using XXX.WMS.Core.Log;using Microsoft.AspNet.SignalR;namespace XXX.WebUI{ public class SaleBackHub : Hub { private void Send(string connectionId, string percent) { // Call the addNewMessageToPage method to update clients. try { Clients.Client(connectionId).updateProgressbar(percent); } catch (Exception ex) { LoggerManager.GetInstance().Fatal(ex); } } public string GetConnectionId() { return this.Context.ConnectionId; } }}

    

2. 服务端调用前端action更新进度条

    1 //使用外部方式调用Hub类方法 2 var saleBackHub = Microsoft.AspNet.SignalR.GlobalHost.ConnectionManager.GetHubContext<SaleBackHub>(); 3 var percent = 0; 4 if (!string.IsNullOrWhiteSpace(requestDto.ProgressbarKey)) 5 { 6 　　percent = (int)((decimal)++progressCount / (decimal)saleBackModelListCount * 100); 7 try 8 { 9 //调用前端action 更新进度条10 saleBackHub.Clients.Client(requestDto.ProgressbarKey).updateProgressbar(percent.ToString());11 }12 catch (Exception ex)13 {14 throw;15 }16 }

    

1. 　　

   using System;using System.Threading.Tasks;using Microsoft.Owin;using Owin;[assembly: OwinStartup(typeof(Frxs.WMS.Management.WebUI.Startup))]namespace xxx.WMS.Management.WebUI{ public class Startup { public void Configuration(IAppBuilder app) { // 有关如何配置应用程序的详细信息，请访问 https://go.microsoft.com/fwlink/?LinkID=316888 app.MapSignalR(); } }}

    

　前端代码

1. 对应页面引入signalR.js

   <script src="@Url.Content("~/Scripts/signalR/jquery.signalR-2.0.3.min.js“)" type="text/javascript"></script><script src="~/signalr/hubs"></script>

2. 初始化signalR 连接 定义后端推送action  渲染进度条  本次用的是jeasyui 进度条弹窗

   var chat;var chatConnectionId;function initchatHub() { // Reference the auto-generated proxy for the hub. chat = $.connection.saleBackHub; $.connection.hub.logging = true; // Get the user name and store it to prepend to messages. // Set initial focus to message input box. // Start the connection. $.connection.hub.start().done(function () { chat.server.getConnectionId().done(function (connectionId) { chatConnectionId = connectionId; }); }); // Create a function that the hub can call back to display messages. chat.client.updateProgressbar = function (percent) { // Add the message to the page. if (parseInt(percent) <= 100) { $.messager.progress(‘bar‘).progressbar(‘setValue‘, percent); } //var value = $.messager.progress(‘bar‘).progressbar(‘getValue‘); };}function showProgressbar() { $.messager.progress({ title: ‘测试进度条‘, interval: 0 //每次进度更新之间以毫秒为单位的时间长度。默认值是 300。  });}

　　实际效果图

　　参考地址 https://docs.microsoft.com/zh-cn/aspnet/signalr/overview/