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    不用Global.asa实现在线人数统计

    2018-04-16 10:57:16 次阅读 稿源:互联网
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    <%
    'count online user without using Global.asa
    'script by Narong Khotarasakit
    'webmaster of ezebox.com
    'report bug : info@ezebox.com


    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

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