支持多风格变换的ASP分页类

11/19/2006来源:ASP技巧人气:16674

这个分页使用的是0游标,也就是Rs.Open Sql,Conn,0,1。但是感觉也快不了多少,10
万条数据的分页时间300多豪秒之间
<%
Class Page
PRivate CurrPage
Private PageN
Private UrlStr
Private TempStr
Private ErrInfo
Private IsErr
Private TotalRecord
Private TotalPage
Public  PageRs

Private TempA(11)
Private TempB(8)
'------------------------------------------------------------
Private Sub Class_Initialize()
      CurrPage=1'//默认显示当前页为第一页
      PageN=10'//默认每页显示10条数据
      UrlStr="#"
      TempStr=""
      ErrInfo="ErrInfo:"
      IsErr=False
End Sub
Private Sub Class_Terminate()
      If IsObject(PageRs) Then
            PageRs.Close
            Set PageRs=Nothing
      End If
      Erase TempA
      Erase TempB
End Sub
'----------------------------------------------------------
'//获取当前页码
Public Property Let CurrentPage(Val)
      CurrPage=Val
End Property
Public Property Get CurrentPage()
      CurrentPage=CurrPage
End Property
'//获取每页显示条数
Public Property Let PageNum(Val)
      PageN=Val
End Property
Public Property Get PageNum()
      PageNum=PageN
End Property
'//获取URL
Public Property Let Url(Val)
      UrlStr=Val
End Property
Public Property Get Url()
      Url=UrlStr
End Property
'//获取模板
Public Property Let Temp(Val)
      TempStr=Val
End Property
Public Property Get Temp()
      Temp=TempStr
End Property
'------------------------------------------------------------

Public Sub Exec(Sql,ConnObj)
      On Error Resume Next
      Set PageRs=Server.CreateObject("ADODB.RecordSet")
      PageRs.CursorLocation = 3 '使用客户端游标,可以使效率提高
      PageRs.PageSize = PageN '定义分页记录集每页显示记录数
      PageRs.Open Sql,ConnObj,0,1
      If Err.Number<>0 Then
        Err.Clear
     PageRs.Close
     Set PageRs=Nothing
        ErrInfo=ErrInfo&"建立或打开记录集错误..."
     IsErr=True
     Response.Write ErrInfo
     Response.End
      End If
      TotalRecord=PageRs.RecordCount'//如果为0呢?
      If TotalRecord>=1 Then
      '----------------------------------------------------------------------------开始
      '//计算总页数,Ps,为什么不用PageRs.PageCount呢?
      'If TotalRecord Mod PageN=0 Then
        'TotalPage=PageRs.RecordCount\PageN
      'Else
        'TotalPage=PageRs.RecordCount\PageN
     'TotalPage=Abs(Int(TotalPage))
      'End If
   TotalPage=PageRs.PageCount
      '//处理当前接收页码,默认的为1,所以不是数字类型的都会为1
      If IsNumeric(CurrPage) Then
         CurrPage=CLNg(CurrPage)
         If CurrPage<1 Then CurrPage=1
      If CurrPage>TotalPage Then CurrPage=TotalPage
      Else
            '//Dim M:M="":IsNumeric(M)=True
         CurrPage=1
      End If
      '---------------------------------------------------------------------------结束
      Else
         TotalPage=0
         CurrPage=1
      End If
      '//
      PageRs.AbsolutePage = CurrPage 'absolutepage:设置指针指向某页开头
      PageRs.PageSize=PageN
End Sub
Private Sub Init()
      'Private TempA(10)
      TempA(1)="{N1}" '//首页
      TempA(2)="{N2}"'//上一页
      TempA(3)="{N3}"'//下一页
      TempA(4)="{N4}"'//尾页
      TempA(5)="{N5}"'//当前页码
      TempA(6)="{N6}"'//页码总数
      TempA(7)="{N7}"'//每页条数
      TempA(8)="{N8}"'//文章总数
      TempA(9)="{L}"'//循环标签开始
      TempA(10)="{N}"'//循环内单标签:页码
      TempA(11)="{L/}"'//循环标签结束
      'Private TempB(8)
      TempB(1)="首页"
      TempB(2)="上一页"
      TempB(3)="下一页"
      TempB(4)="尾页"
      TempB(5)=CurrPage'//当前页码
      TempB(6)=TotalPage'//页码总数
      TempB(7)=PageN'//每页条数
      TempB(8)=TotalRecord'//文章总数
End Sub
Public Sub Show(Style)
      If IsErr=True Then
        Response.Write ErrInfo
     Exit Sub
      End If

      Call Init()
      Select Case Style
      Case 1
         Response.Write StyleA()
      Case 2
         Response.Write StyleB()
      Case 3
         Response.Write StyleC()
      Case 4
         Response.Write StyleD()
      Case Else
         ErrInfo=ErrInfo&"不存在当前样式..."
      Response.Write ErrInfo
      End Select
End Sub
Public Function ShowStyle(Style)
      If IsErr=True Then
        ShowStyle=ErrInfo
     Exit Function
      End If

      Call Init()
      Select Case Style
      Case 1
         ShowStyle= StyleA()
      Case 2
         ShowStyle= StyleB()
      Case Else
         ErrInfo=ErrInfo&"不存在当前样式..."
  ShowStyle=ErrInfo
      End Select
End Function

Private Function StyleA()
'首页 上一页 下一页 尾页  本页为第1/20页,共20页,每页10条,文章总数200条
'//分页样例:[首页] [上页] [下页] [尾页] [页次:4/5页] [共86篇 20篇/页] 转到:_ 页
'//标签:{N1} {N2} {N3} {N4} || 共:{N8}条记录 {N6}页 当前为第{N5}页 每页{N7}条
If IsEmpty(TempStr) Then
      ErrInfo=ErrInfo&"模板为空..."
      StyleB=ErrInfo
      Exit Function
End If
Dim M
If TotalPage>1 Then
      If CurrPage>1 Then
        M="<a href='"&UrlStr&"Page=1'>"&"首页"&"</a>"
     TempStr=Replace(TempStr,"{N1}",M)
     M="<a href='"&UrlStr&"Page="&CurrPage-1&"'>"&"上一页"&"</a>"
     TempStr=Replace(TempStr,"{N2}",M)
     If CurrPage<TotalPage Then
       M="<a href='"&UrlStr&"Page="&CurrPage+1&"'>"&"下一页"&"</a>"
    TempStr=Replace(TempStr,"{N3}",M)
    M="<a href='"&UrlStr&"Page="&TotalPage&"'>"&"尾页"&"</a>"
          TempStr=Replace(TempStr,"{N4}",M)
        Else
       TempStr=Replace(TempStr,"{N3}","下一页")
    TempStr=Replace(TempStr,"{N4}","尾页")
     End If
      Else
        TempStr=Replace(TempStr,"{N1}","首页")
     TempStr=Replace(TempStr,"{N2}","上一页")
        M="<a href='"&UrlStr&"Page="&CurrPage+1&"'>"&"下一页"&"</a>"
     TempStr=Replace(TempStr,"{N3}",M)
     M="<a href='"&UrlStr&"Page="&TotalPage&"'>"&"尾页"&"</a>"
        TempStr=Replace(TempStr,"{N4}",M)
      End If
Else
      TempStr=Replace(TempStr,"{N1}","首页")
      TempStr=Replace(TempStr,"{N2}","上一页")
      TempStr=Replace(TempStr,"{N3}","下一页")
      TempStr=Replace(TempStr,"{N4}","尾页")
End If
T=TempStr
T=Replace(T,"{N8}",TotalRecord)
T=Replace(T,"{N6}",TotalPage)
T=Replace(T,"{N5}",CurrPage)
T=Replace(T,"{N7}",PageN)
TempStr=T
StyleA=TempStr
End Function

Private Function StyleB()
'首页 |< 1 2 3 4 5 6 7 >| 尾页
'//标签:{N1} {N2} {L}{N}{L/}{N3}{N4}
If IsEmpty(TempStr) Then
      ErrInfo=ErrInfo&"模板为空..."
      StyleB=ErrInfo
      Exit Function
End If
Dim ForceNum,BackNum'//当前页的前面和后面显示个数
ForceNum=5
BackNum=4
Dim M
'//首页
M="<a href='"&UrlStr&"Page=1'>"&TempB(1)&"</a>"
TempStr=Replace(TempStr,"{N1}",M)
'//尾页
M="<a href='"&UrlStr&"Page="&TempB(6)&"'>"&TempB(4)&"</a>"
TempStr=Replace(TempStr,"{N4}",M)
'//前一页
M="|<"
If CurrPage-1>=1 Then
      M="<a href='"&UrlStr&"Page="&CurrPage-1&"'>"&"|<"&"</a>"
End If
TempStr=Replace(TempStr,"{N2}",M)
'//后一页
M=">|"
If CurrPage+1<=TotalPage Then
      M="<a href='"&UrlStr&"Page="&CurrPage+1&"'>"&">|"&"</a>"
End If
TempStr=Replace(TempStr,"{N3}",M)
'//取出循环标签
Dim N1,N2,N3,N4,N5,N6
If InStr(TempStr,"{L}")>0 Then
      N1=InStr(TempStr,"{L}")
End If
If InStr(TempStr,"{L/}")>0 Then
      N2=InStr(TempStr,"{L/}")
End If
If N2<=N1 Then
      ErrInfo=ErrInfo&"循环标签出错..."
      StyleB=ErrInfo
      Exit Function
End If
N3=Mid(TempStr,N1,N2-N1+4)'//储存包括{L}{L/}循环标签的模板
N4=Replace(N3,"{L}","")'//储存不包括{L}{L/}循环标签的模板
N4=Replace(N4,"{L/}","")
'//页码列表
Dim FirstPageNum,LastPageNum
If CurrPage-ForceNum<=1 Then
   FirstPageNum=1
   PageList=""
Else
   FirstPageNum=CurrPage-ForceNum
   PageList="... ..."
End If
If CurrPage+BackNum>=TotalPage Then
   LastPageNum=TotalPage
   PageList_2=""
Else
   LastPageNum=CurrPage+BackNum
   PageList_2="... ..."
End If
Dim I
For I=FirstPageNum To LastPageNum
      If I=CurrPage Then
        N5=Replace(N4,"{N}","<b>"&I&"</b>")
     N6=N6&N5
      Else
        M="<a href='"&UrlStr&"Page="&I&"'>"&I&"</a>"
     N5=Replace(N4,"{N}",M)
     N6=N6&N5
      End If
Next
TempStr=Replace(TempStr,N3,N6)
StyleB=TempStr
End Function

Private Function StyleC()
'首页 |< |<< 1 2 3 4 5 6 7 >>| >| 尾页
'//此风格在StyleB的基础上修改,增加两个标签:{N9}上10页 {N10}下10页
'//标签:{N1}{N2}{N9}{L}{N}{L/}{N10}{N3}{N4}
Dim T
T=StyleB()
'//前十页
M="|<<"
If CurrPage-10>=1 Then
      M="<a href='"&UrlStr&"Page="&CurrPage-10&"'>"&"|<<"&"</a>"
End If
T=Replace(T,"{N9}",M)
M=">>|"
If CurrPage+10<=TotalPage Then
      M="<a href='"&UrlStr&"Page="&CurrPage+10&"'>"&">>|"&"</a>"
End If
T=Replace(T,"{N10}",M)
StyleC=T
End Function

Private Function StyleD()
'//此风格在StyleC的基础上修改
'//共{N8}条记录 {N6}页 当前为第{N5}页 每页{N7}条
'//首页 |< |<< 1 2 3 4 5 6 7 >>| >| 尾页
'//标签:{N1}{N2}{N9}{L}{N}{L/}{N10}{N3}{N4}
Dim T
T=StyleC()
T=Replace(T,"{N8}",TotalRecord)
T=Replace(T,"{N6}",TotalPage)
T=Replace(T,"{N5}",CurrPage)
T=Replace(T,"{N7}",PageN)
StyleD=T
End Function

End Class
%>