新建一个空网站,添加Global.asax全局处理。
文件目录如图:
在global类中添加代码:
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Security; using System.Web.SessionState; namespace WebApplication { public class Global : System.Web.HttpApplication { protected void Application_Start(object sender, EventArgs e) { Application["UserCount"] = 0; } protected void Session_Start(object sender, EventArgs e) { try { Application.Lock(); int countUser = (int)Application["UserCount"]; Application["UserCount"] = ++countUser; } catch { } finally { Application.UnLock(); } }
新建一个web窗体applicationstateread类添加在如下代码:
public partial class ApplicationStateRead : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { int userCount = (int)Application["UserCount"]; Label1.Text = userCount.ToString(); } }public partial class ApplicationStateRead : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { int userCount = (int)Application["UserCount"]; Label1.Text = userCount.ToString(); } }public partial class ApplicationStateRead : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { int userCount = (int)Application["UserCount"]; Label1.Text = userCount.ToString(); } }
运行效果图: