ASP.NET MVC在线人数统计

在Global.asax.cs文件中代码：

protected void Application_Start()
{
    Application["OnLineUserCount"] = ;
    AreaRegistration.RegisterAllAreas();
 
    RegisterGlobalFilters(GlobalFilters.Filters);
    RegisterRoutes(RouteTable.Routes);
}
 
protected void Session_Start(object sender, EventArgs e)
{
    Application.Lock();
    Application["OnLineUserCount"] = Convert.ToInt32(Application["OnLineUserCount"]) + ;
    Application.UnLock();
}
 
protected void Session_End(object sender, EventArgs e)
{
    Application.Lock();
    Application["OnLineUserCount"] = Convert.ToInt32(Application["OnLineUserCount"]) - ;
    Application.UnLock();
}