ASP.NET在线人数和访问人数总量统计

说明：限制

在web.config里面

<sessionState mode="InProc" cookieless="false" timeout="30" />   <!--三十分钟后,session失效-->

 

global.asax页面

<%@ Application Language="C#" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Text" %>

<script runat="server">

    protected void Application_Start(object sender, EventArgs e)
    {
        // 在应用程序启动时运行的代码
        Application["onlinenum"] = 0;  // 在线人数
       
    }

    protected void Application_End(object sender, EventArgs e)
    {
        //  在应用程序关闭时运行的代码

    }

    protected void Application_Error(object sender, EventArgs e)
    {
        // 在出现未处理的错误时运行的代码

    }

    protected void Session_Start(object sender, EventArgs e)
    {
        // 在新会话启动时运行的代码
        Application.Lock();
        Application["onlinenum"] = (int)Application["onlinenum"] + 1;
        Application.UnLock();

       
        //总人数访问统计
        if (Session["total"] == null)
        {
            StreamReader objReader;
            StreamWriter objWriter;
            String sFile;
            String sCount;
            int iCount;
            try
            {
                sFile = Server.MapPath("counter/counter.txt");
                if (!File.Exists(sFile))
                {
                    objWriter = File.CreateText(sFile);
                    objWriter.Write("0");
                    objWriter.Close();
                }
                objReader = File.OpenText(sFile);
                sCount = objReader.ReadToEnd();
                objReader.Close();
                iCount = Int32.Parse(sCount);
                iCount = iCount + 1;
                sCount = iCount.ToString();
                objWriter = File.CreateText(sFile);
                objWriter.Write(sCount);
                objWriter.Close();
                Session["total"] = "set";
            }
            catch (Exception edd)
            {
            }
        }  
    }

    protected void Session_End(object sender, EventArgs e)
    {
        // 在会话结束时运行的代码。
        // 注意: 只有在 Web.config 文件中的 sessionstate 模式设置为
        // InProc 时，才会引发 Session_End 事件。如果会话模式设置为 StateServer
        // 或 SQLServer，则不会引发该事件。
        Application.Lock();
        Application["onlinenum"] = (int)Application["onlinenum"] - 1;
        Application.UnLock();
    }
</script>

 

前台调用代码：

using System;
using System.Data;
using System.Data.OleDb;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Text;

public partial class foot : System.Web.UI.UserControl
{
    protected void Page_Load(object sender, EventArgs e)
    {
        lbl_onlineNum.Text = Application["onlinenum"].ToString();
        StreamReader objReader;
        string sFile;
        string sCount= "";
        int iCount;
        try
        {
            sFile = Server.MapPath("counter/counter.txt");
           
            objReader = File.OpenText(sFile);
            sCount = objReader.ReadToEnd();
            objReader.Close();
        }
        catch (Exception edd)
        {
        }
        lbl_num.Text = sCount.ToString();
    }
}

原帖地址：http://cfeng518.blog.163.com/blog/static/17467732200772311219489/