temp = temp & "</td><td>" & rs("szd_t")
temp = temp & "</td></tr>"
rs.MoveNext
Wend
temp = temp & "</table>"
DisplayRecords = temp
Else
DisplayRecords = "Data Not Available."
End If
rs.Close
conn.Close
Set rs = Nothing
Set conn = Nothing
End Function
Function DisplayCachedRecords(Secs)
Dim retVal, datVal, temp1
retVal = Application("cache_demo")
datVal = Application("cache_demo_date")
If datVal = "" Then
datVal = DateAdd("s",Secs,Now)
End If
temp1 = DateDiff("s", Now, datVal)
If temp1 > 0 And retVal <> "" Then
DisplayCachedRecords = retVal
Response.Write "<b><font color=""green"">利用缓存读取数据"
Response.Write " ... (" & temp1 & " 秒剩余)</font></b>"
Response.Write "<br><br>"
Else
Dim temp2
temp2 = DisplayRecords()
Application.Lock
Application("cache_demo") = temp2
Application("cache_demo_date") = DateAdd("s",Secs,Now)
Application.UnLock
DisplayCachedRecords = temp2
Response.Write "<b><font color=""red"">刷新缓存显示 ..."
Response.Write "</font></b><br><br>"
End If
End Function
%>
调用方法:
<%=DisplayCachedRecords(20)%>
写在后面的话:如果你感觉你的服务器内存不够大的话,不要大量使用缓存.
下载: cache.rar
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