当前位置: 首页 > 图文教程 > 网络编程 > ASP > 不用Global.asa实现在线人数统计

ASP
ASP视频教程:后台页面加入限制访问和禁用缓存功能
ASP视频教程:制作网站前台首页
ASP视频教程:备份和还原SQL Server 2000数据库
ASP实例教程:asp无限级显示分类代码
IIS无法启动错误的几种情况汇总
asp Http_Referer,Server_Name和Http_Host
ASP 调用带参数输出的COM接口
隐藏修改文件时间和文件属性的ASP脚本
ASP Crazy 模版操作类(最简单的模板类、仅提供交流)
asp 动态数组 提供Add、Insert、Remove、RemoveAt、Search等方法。
asp 取一个数的整数 但不是四舍五入,只要有小数,就取大于这个数的整数
asp 判断上传文件中是否存在危险代码
asp 获取url函数小结
ASP 调用dll及封装dll实例
asp 实现的冒泡排序程序
asp 自定义分段函数/求第N名成绩
ASP 高级模板引擎实现类
ASP 常见的连接字符串写法(access2007)
ASP向Excel导数据(图片)终结版 ASP操作Excel
ASP实现防止网站被采集代码

ASP 中的 不用Global.asa实现在线人数统计


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-11-03   浏览: 249 ::
收藏到网摘: n/a

  <%
'count online user without using Global.asa
'script by Narong Khotarasakit
'webmaster of ezebox.com
'report bug : [email protected]


sessionID = session.SessionID
timeout = 5
' set how long to keep this session in minute you can increase this number

Conn_String = "DRIVER={Microsoft Access Driver (*.mdb)};DBQ=" & Server.MapPath("count.mdb")
'Conn_String = "activeUser"
'set your DSN = "activeuser" is a better way because you need include this file to all your asp scripts.


Set ConnCount =Server.CreateObject("ADODB.Connection")
ConnCount.Open Conn_String

' delete session after timeout
aaa = dateadd("n", -timeout, now())
connCount.Execute ("delete * from count where postdate < #" & aaa & "#")


' keep sessionID
sql0 = "select sess from count where sess='" & sessionID & "'"
set rscheck = connCount.Execute (sql0)
if rscheck.eof then
sql = "insert into count (sess,postdate) values('" & sessionID & "', '" & now() & "')"
connCount.Execute (sql)
end if
rscheck.close
set rscheck = nothing

'count sessionID
sql2 = "select count(sess) from count"
set rs = connCount.Execute (sql2)
count = rs(0)
rs.close
set rs = nothing


sql3 = "select * from count"
set rspredel = connCount.Execute (sql3)
do until rspredel.eof
xxx=DateDiff("n", rspredel("postdate"), Now())
if xxx > timeout then
count = count-1
end if
rspredel.movenext
loop
rspredel.close
set rspredel = nothing

connCount.Close
set connCount = nothing

if count = 0 then
count = 1
end if
%>

<%=count%> Active users