统计web应用程序的访问人数
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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:
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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:
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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:
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