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
在ASP程序中实现数据库事务控制
怎样开始一个ASP网站的设计
ASP中使用ServerVariables集合详解
关于解决商务平台ASP程序的源代码泄漏设想与思考
ASP通用模板类
javascript利用xmlhttp获得服务器时钟的方法
asp+oracle分页程序类(XDOWNPAGE2.0)
ASP中实现小偷程序的原理和简单
asp中vbscript访问xml文件
ASP防SQL注入攻击程序
用ASP读INI配置文件的函数
asp实现关键词获取(各搜索引擎,gb2312及utf-8)
xmlhttp组件获取远程文件并筛选出目标数据
XMLHTTP Get HTML页面时的中文乱码之完全客户端Script解决方案
WEB打印设置解决方案一(通过修改注册表改变IE打印设置)
WEB打印设置解决方案二(利用ScriptX.cab控件改变IE打印设置)
WEB打印设置解决方案三(FileSystem组件实现WEB打印)
WEB打印设置解决方案四(在ASP中实现网络打印功能)
ASP实用技巧 强制刷新网页
Access通用-自动替换数据库中的字符串

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: 89 ::
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