Silverlight超时退出怎么实现？(AuthticationTimeOut)

来源：互联网发布：如何修改手机淘宝评价编辑：程序博客网时间：2024/04/29 10:25

Silverlight用户用表单身份认证FormsAuthentication登录以后，如果一定的时间没有动作（Idle）就超时退出登录，这样的功能怎么实现？（关于Silverlight FormsAuthentication用户登录，可以参考BusinessApplication，新建一个BusinessApplication即可）。好了，来实现这个超时退出功能。

新的类FormsWithTimeoutAuthentication继承FormsAuthentication

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public class FormsWithTimeoutAuthentication : FormsAuthentication
    {
        privateDispatcherTimer idleTimer;
        privateint minutesIdle;
        privatebool idle;
        privatebool attached = false;
        publicFormsWithTimeoutAuthentication()
            :this(20)
         { }
         publicFormsWithTimeoutAuthentication(intidleMinutes)
         {
             IdleMinutesBeforeTimeout = idleMinutes;
             idleTimer =new DispatcherTimer();
             idleTimer.Interval = TimeSpan.FromMinutes(1);
             idleTimer.Tick +=new EventHandler(idleTimer_Tick);
         }
         publicint IdleMinutesBeforeTimeout
         {
             get;
             set;
         }
         protectedoverride LoginResult EndLogin(IAsyncResult asyncResult)
         {
             var result =base.EndLogin(asyncResult);
             if(result.LoginSuccess == true)
             {
                 if(!attached) AttachEvents();
                 minutesIdle = 0;
                 idleTimer.Start();
             }
             returnresult;
         }
         protectedoverride LogoutResult EndLogout(IAsyncResult asyncResult)
         {
             idleTimer.Stop();
             returnbase.EndLogout(asyncResult);
         }
         privatevoid AttachEvents()
         {
             attached =true;
             Application.Current.RootVisual.MouseMove +=new MouseEventHandler(RootVisual_MouseMove);
             Application.Current.RootVisual.KeyDown +=new KeyEventHandler(RootVisual_KeyDown);
         }
         privatevoid RootVisual_KeyDown(objectsender, KeyEventArgs e)
         {
             idle =false;
         }
         privatevoid RootVisual_MouseMove(objectsender, MouseEventArgs e)
         {
             idle =false;
         }
         privatevoid idleTimer_Tick(objectsender, EventArgs e)
         {
             if(idle == true)
             {
                 minutesIdle += idleTimer.Interval.Minutes;
                 if(minutesIdle >= IdleMinutesBeforeTimeout)
                 {
                     Logout();
                 }
             }
             else
             {
                 minutesIdle = 0;
             }
             idle =true;
         }
         privatevoid Logout()
         {
             //这里是你自己的退出登录代码，我这里是调用JS，刷新页面而已
              HtmlPage.Window.Invoke("RefreshSL","Invoke");
         }
     }

修改App.xaml，修改WebContext表单认证模式

 1 <Application  2  x:Class="MyAppSL.App" 3  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 4  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 5  xmlns:app="clr-namespace:MyAppSL" 6  xmlns:appService="clr-namespace:MyAppSL.Services" 7  xmlns:Lng="clr-namespace:MyAppSL.Resources"  8  xmlns:appsvc="clr-namespace:System.ServiceModel.DomainServices.Client.ApplicationServices;assembly=System.ServiceModel.DomainServices.Client.Web" 9  Startup="Application_Startup"10  UnhandledException="Application_UnhandledException">11 12  <Application.ApplicationLifetimeObjects>13  <app:WebContext>14  <app:WebContext.Authentication>15  <appService:FormsWithTimeoutAuthentication IdleMinutesBeforeTimeout="2"/>16  </app:WebContext.Authentication>17  </app:WebContext>18  </Application.ApplicationLifetimeObjects>19 20  <!--原来是这样的-->21  <!--<Application.ApplicationLifetimeObjects>22  <app:WebContext>23  <app:WebContext.Authentication>24  <appsvc:FormsAuthentication />25  </app:WebContext.Authentication>26  </app:WebContext>27  </Application.ApplicationLifetimeObjects>-->28 29  </Application>

我这里配置的Idle两分钟就超时退出登录，可以自己配置超时时间。实现的效果就是用户登录Silverlight应用以后，如果一定的时间没有动作（Idle）就超时退出登录，返回登录页面。