扫描二维码登陆 原理以及（SignalR实现消息推送）

using System;
using System.Collections.Generic;
using TxSms.Models;

namespace TxSms.Actions
{
    /// 

    /// 二维码管理
    /// 

    public class QRCodeAction
    {
        /// 

        /// 存储二维码
        /// 

        public static Dictionary QRCodeLists = new Dictionary（）;

        private static readonly object Lockobject = new object（）;

        /// 

        /// 判断UUID是否有效
        /// 

        /// 
        /// 
        public bool IsValid（string connectionId）
        {
            lock （Lockobject）
            {
                bool isOk;
                if （QRCodeLists.ContainsKey（connectionId））
              

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

    .CA....    426496  2016-07-05 14:53  TxSms.SingalR\bin\Debug\Abp.dll

    .CA....   1320448  2016-07-05 14:53  TxSms.SingalR\bin\Debug\Abp.pdb

    .CA....    592486  2016-09-08 18:01  TxSms.SingalR\bin\Debug\Abp.xml

    .CA....   5196496  2015-03-02 09:32  TxSms.SingalR\bin\Debug\Entityframework.dll

    .CA....   3652961  2016-08-29 11:02  TxSms.SingalR\bin\Debug\Entityframework.xml

    .CA....    200704  2011-01-03 14:16  TxSms.SingalR\bin\Debug\ICSharpCode.SharpZipLib.dll

    .CA....    346848  2016-07-14 02:35  TxSms.SingalR\bin\Debug\Microsoft.AspNet.SignalR.Core.dll

    .CA....    202157  2016-07-14 02:35  TxSms.SingalR\bin\Debug\Microsoft.AspNet.SignalR.Core.xml

    .CA....     23264  2016-07-14 02:35  TxSms.SingalR\bin\Debug\Microsoft.AspNet.SignalR.SystemWeb.dll

    .CA....      7588  2016-07-14 02:35  TxSms.SingalR\bin\Debug\Microsoft.AspNet.SignalR.SystemWeb.xml

    .CA....     93872  2014-01-13 16:11  TxSms.SingalR\bin\Debug\Microsoft.Owin.dll

    .CA....    148656  2014-01-13 16:11  TxSms.SingalR\bin\Debug\Microsoft.Owin.Host.SystemWeb.dll

    .CA....     32389  2014-01-13 16:11  TxSms.SingalR\bin\Debug\Microsoft.Owin.Host.SystemWeb.xml

    .CA....     49840  2014-01-13 16:11  TxSms.SingalR\bin\Debug\Microsoft.Owin.Security.dll

    .CA....     71856  2014-01-13 16:11  TxSms.SingalR\bin\Debug\Microsoft.Owin.Security.OAuth.dll

    .CA....    100669  2016-08-29 11:03  TxSms.SingalR\bin\Debug\Microsoft.Owin.Security.OAuth.xml

    .CA....     28577  2016-08-29 11:03  TxSms.SingalR\bin\Debug\Microsoft.Owin.Security.xml

    .CA....    161648  2014-01-13 16:11  TxSms.SingalR\bin\Debug\Microsoft.Owin.xml

    .CA....     45416  2016-02-15 09:23  TxSms.SingalR\bin\Debug\Microsoft.Web.Infrastructure.dll

    .CA....    502272  2014-08-03 20:33  TxSms.SingalR\bin\Debug\Newtonsoft.Json.dll

    .CA....    478726  2014-08-03 20:33  TxSms.SingalR\bin\Debug\Newtonsoft.Json.xml

    .CA....   1678848  2016-06-01 06:50  TxSms.SingalR\bin\Debug\NPOI.dll

    .CA....   2254144  2016-08-29 11:03  TxSms.SingalR\bin\Debug\NPOI.xml

    .CA....      4608  2012-11-13 12:19  TxSms.SingalR\bin\Debug\Owin.dll

    .CA....    185544  2016-02-27 15:11  TxSms.SingalR\bin\Debug\System.Net.Http.Formatting.dll

    .CA....    192626  2016-08-29 11:03  TxSms.SingalR\bin\Debug\System.Net.Http.Formatting.xml

    .CA....    471240  2016-02-27 15:12  TxSms.SingalR\bin\Debug\System.Web.Http.dll

    .CA....    539657  2016-08-29 11:03  TxSms.SingalR\bin\Debug\System.Web.Http.xml

    .CA....    566472  2016-02-27 15:14  TxSms.SingalR\bin\Debug\System.Web.Mvc.dll

    .CA....    952428  2016-08-29 11:03  TxSms.SingalR\bin\Debug\System.Web.Mvc.xml

............此处省略73个文件信息