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动态生成的javascript表单验证代码
将身份证从15位升级为18位的函数
ASP自定义函数,仿VBA中域函数DLookup
6行代码实现无组件上传
用VS2003调试ASP的方法和体会
ASP中存储过程调用的两种方式及比较
升级到2003后访问数据库发生8007007f错误的解决
ACCESS转化成SQL2000需要注意的几个问题
让ASP程序运行于非Windows平台
一些不长见的ASP调用存储过程的技巧
网站图片扫描类
一条sql 语句搞定数据库分页
在ASP中取得服务器网卡的MAC地址、DNS地址等网络信息
ASP中轻松实现变量名-值变换
用Xml2OleDb将XML文件插入到数据库
购物车中数据的存放方式
ASP数据库编程SQL常用技巧
在ASP中利用ADO显示Excel文件内容的函数
ASP+SQL Server之图象数据处理
在 Access 中使用“存储过程”

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: 111 ::
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