Sub DeleteObject(ByRef obj)
Set obj = nothing
obj = null
End Sub
Class CDB
private m_oConn, m_oRS
private m_pageIndex, m_pageSize, m_pageCount, m_recordCount
private strError
private m_QueryString
private Sub Class_Initialize()
m_oConn = null
m_oRS = null
m_pageIndex = 1
m_pageSize = 10
m_pageCount = 1
m_recordCount = 0
Call connect()
End Sub
private property Get GetConnectionString()
if InStr(LCase(Request.ServerVariables("SCRIPT_NAME")), "/admin/") > 0 then
GetConnectionString = "Provider=microsoft.jet.oledb.4.0;data source=" & Server.MapPath("DataBasedata.mdb")
else
GetConnectionString = "Provider=microsoft.jet.oledb.4.0;data source=" & Server.MapPath("AdminDataBasedata.mdb")
end if
end property
public property Let SetPageSize(num)
if Not isNumeric(num) then Exit property
num = CInt(num)
if num > 0 Then m_pageSize = num
End property
'object.AppendSearch(paraName) = paraValue
public property Let AppendQueryString(paraName, paraValue)
m_QueryString = m_QueryString & "&"& paraName & "=" & Server.URLEncode(paraValue)
end property
public property Let SetPageIndex(num)
if Not isNumeric(num) then Exit property
num = CInt(num)
if num > 0 then m_pageIndex = num
End property
public default function toString()
toString = strError
end function
private sub Connect()
Set m_oConn = Server.CreateObject("ADODB.Connection")
m_oConn.ConnectionString= GetConnectionString
m_oConn.Open()
if err then
strError = err.Description
Response.write("Sorry, failed to connect Database!")
err.Clear()
DeleteObject(m_oConn)
Response.End()
end if
end sub
private sub Close(ByRef DBObject)
if 1 = DBObject.state then Call DBObject.Close()
end sub
public function ExecuteScalar(strSql)
ExecuteScalar = m_oConn.Execute(strSql)(0)
end function
public sub Execute(ByVal strSql)
if (Not isObject(m_oConn)) then Exit Sub
m_oConn.Execute(strSql)
end sub
private function OpenRS()
OpenRS = false
if ((Not isObject(m_oConn)) Or m_oConn.State = 0) thenexit function
if (isObject(m_oRS)) then
if 1 = m_oRS.State then Call m_oRS.Close()
else
Set m_oRS = Server.CreateObject("ADODB.RecordSet")
end if
OpenRS = true
end function
public function GetData(ByVal strSql)
if not OpenRS() then
GetData = null
exit function
end if
call m_oRS.Open(strSql, m_oConn, 1, 1)
if m_oRS.EOF then
GetData = null
else
GetData = m_oRS.GetRows()
end if
m_oRS.Close()
end function
public function GetMultPageData(ByVal strSQL)
if Not OpenRS() then
GetMultPageData = null
exit function
end If
Call m_oRS.Open(strSQL, m_oConn, 1, 1)
if m_oRS.EOF then
GetMultPageData = null
else
m_oRS.PageSize = m_pageSize
m_recordCount = m_oRS.RecordCount
m_pageCount = m_oRS.PageCount
if (m_pageIndex > m_pageCount) then m_pageIndex = m_pageCount
m_oRS.AbsolutePage = m_pageIndex
GetMultPageData = m_oRS.GetRows(m_pageSize)
end if
Call m_oRS.Close()
end function
public function PageInfo(style)
Dim sHtml : set sHtml = new StringBuild
sHtml.SetValue = "<div id=""divPageNav"">"
call sHtml.AppendFormat("<label>共:{0}记录,当前:{1}/{2}:</label>", Array(m_recordCount, m_pageIndex, m_pageCount))
Select Case style
Case 1 :if 1 = m_pageIndex then
call sHtml.Append("<span>首页</span><span>上页</span>")
else
call sHtml.AppendFormat("<a href=""?page=1{0}"">首页</a><a href=""?page={1}{0}"">上页</a>", Array(m_QueryString,m_pageIndex - 1))
end if
if m_pageCount = m_pageIndex then
call sHtml.Append("<span>下页</span><span>尾页</span>")
else
call sHtml.AppendFormat("<a href=""?page={1}{0}"">下页</a><a href=""?page={2}{0}"">尾页</a>", Array(m_QueryString, m_pageIndex + 1, m_pageCount))
end if
Case 2 :dim interval, startPage, endPage, i
interval = 5
startPage = m_pageIndex - interval
ifstartPage < 1 then startPage = 1
endPage = startPage + 2 * interval
ifendPage > m_pageCount then endPage = m_pageCount
startPage = endPage - 2 * interval
ifstartPage < 1 then startPage = 1
if 1 = m_pageIndex then
call sHtml.Append("<span style=""font-family: Webdings;"">9</span><span style=""font-family: Webdings;"">7</span>")
else
call sHtml.AppendFormat("<a href=""?page=1{0}"" style=""font-family: Webdings;"">9</a><a href=""?page={1}{0}"" style=""font-family: Webdings;"">7</a>", Array(m_queryString, CStr(m_pageIndex - 1)))
end if
for i = startPage to m_pageIndex-1
call sHtml.AppendFormat("<a href=""?page={1}{0}"">{1}</a>", Array( m_queryString, CStr(i)))
next
call sHtml.Append("<span>" & m_pageIndex & "</span>")
for i = m_pageIndex+1 to endPage
call sHtml.AppendFormat("<a href=""?page={1}{0}"">{1}</a>", Array( m_queryString, CStr(i)))
next
if m_pageCount = m_pageIndex then
sHtml.Append("<span style=""font-family:Webdings;"">8</span><span style=""font-family:Webdings;"">:</span>")
else
call sHtml.AppendFormat("<a href=""?page={1}{0}"" style=""font-family: Webdings;"">8</a><a href=""?page={2}{0}"" style=""font-family: Webdings;"">:</a>", Array(m_queryString,m_pageIndex+1,m_pageCount))
end if
end Select
call sHtml.Append("</div>")
PageInfo = sHtml
DeleteObject(sHtml)
end function
private Sub Class_Terminate()
Close(m_oRS)
Close(m_oConn)
DeleteObject(m_oRS)
DeleteObject(m_oConn)
End Sub
end Class
dim i, oDB, arrData : set oDB = new CDB
oDB.SetPageSize = 2
oDB.SetPageIndex = Request.QueryString("page")
arrData = oDB.GetMultPageData("SELECT [TITLE] FROM [CLASS]")
for i = 0 to ubound(arrData, 2)
echo(arrData(0, i) & "<br/>")
next
echo(oDB.PageInfo(1))
DeleteObject(oDB)
