ASP初学者常用的代码


1.获得系统时间:
<%=now()%>
2.取得来访用的IP:
<%=request.serverVariables("remote_host")%>
3.获得系统,浏览器版本:
<script>
window.document.write("版本:"+navigator.appName+navigator.appVersion+" browser.")
</script>
4.去除IE混动条:
<body scroll="no">
<body style="overflow-y:hidden">
5.进入网站,跳出广告:
<script language="javascript">
<!--
<!-- 注意更改文件所在路径-->
window.open(''http://www.XXXXXX.com'','''',''height=200,width=300,top=0,left=30'');
// -->
</script>
6.随机数:
<%randomize%>
<%=(int(rnd()*n)+1)%>
N为可改变数
7.向上混动代码:
<marquee direction="up" scrolldelay="200" style="font-size: 9pt; color: #FF0000; line-height: 150%; font-style:italic;

font-weight:bold" scrollamount="2" width="206" height="207" bgcolor="#FFFF00">hhhhhhhhhhhhhhhhhhh</marquee>
8.自动关闭网页:
<script LANGUAGE="javascript">
<!--
setTimeout(''window.close();'', 10000); //60秒后关闭
// -->
</script>
<p align="center">本页10秒后自动关闭,请注意刷新页面</p>
9.随机背景音乐:
<%randomize%>
<bgsound src="mids/<%=(int(rnd()*60)+1)%>.mid" loop="-1">   

 

可以修改数字,限制调用个数,我这里是60个.
10.自动刷新本页面:
<script>
<!--  

var limit="0:10"  

if (document.images){
var parselimit=limit.split(":")
parselimit=parselimit[0]*60+parselimit[1]*1
}
function beginrefresh(){
if (!document.images)
return
if (parselimit==1)
window.location.reload()
else{
parselimit-=1
curmin=Math.floor(parselimit/60)
cursec=parselimit%60
if (curmin!=0)
curtime=curmin+"分"+cursec+"秒后重刷本页!"
else
curtime=cursec+"秒后重刷本页!"
window.status=curtime
setTimeout("beginrefresh()",1000)
}
}  

window.onload=beginrefresh
file://-->
</script>
11.ACCESS数据库连接:
<%
option explicit
dim startime,endtime,conn,connstr,db
startime=timer()
'更改数据库名字
db="data/dvBBS5.mdb"
Set conn = Server.CreateObject("ADODB.Connection")
connstr="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath(db)
'如果你的服务器采用较老版本Access驱动,请用下面连接方法
'connstr="driver={Microsoft Access Driver (*.mdb)};dbq=" & Server.MapPath(db)
conn.Open connstr
function CloseDatabase
Conn.close
Set conn = Nothing
End Function
%>
12.SQL数据库连接:
<%
option explicit
dim startime,endtime,conn,connstr,db
startime=timer()
connstr="driver={SQL Server};server=HUDENQ-N11T33NB;uid=sa;pwd=xsfeihu;database=dvbbs"
Set conn = Server.CreateObject("ADODB.Connection")
conn.Open connstr
function CloseDatabase
Conn.close
Set conn = Nothing
End Function
%>
13.用键盘打开网页代码:
<script language="javascript">
function ctlent(eventobject)
{
if((event.ctrlKey && window.event.keyCode==13)||(event.altKey && window.event.keyCode==83))
{
window.open('网址','','')
}
}
</script> 

这里是Ctrl+Enter和Alt+S的代码 自己查下键盘的ASCII码再换就行
14.让层不被控件复盖代码:
<div z-Index:2><object ***></object></div> # 前面
<div z-Index:1><object ***></object></div> # 后面
<div id="Layer2" style="position:absolute; top:40;width:400px; height:95px;z-index:2"><table height=100% width=100%

bgcolor="#ff0000"><tr><td height=100% width=100%></td></tr></table><iframe width=0 height=0></iframe></div>
<div id="Layer1" style="position:absolute; top:50;width:200px; height:115px;z-index:1"><iframe height=100% width=100%>

</iframe></div>
15.动网FLASH广告代码:
<object classid="clsid27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http:

//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=5,0,0,0" width="468" height="60">

<param name=movie value="images/yj16d.swf"><param name=quality value=high>

<embed src="images/dvbanner.swf" quality=high pluginspage="http://www.macromedia.com/shockwave/download/index.cgi?

P1_Prod_Version=ShockwaveFlash";;;; type="application/x-shockwave-flash" width="468" height="60"></embed></object>
16.VBS弹出窗口小代码:
<script language=vbscript>
msgbox"你还没有注册或登陆论坛","0","精品论坛"
location.href = "login.asp"
</script>
16.使用FSO修改文件特定内容的函数
function FSOchange(filename,Target,String)
Dim objFSO,objCountFile,FiletempData
Set objFSO = Server.CreateObject("Scripting.FileSystemObject")
Set objCountFile = objFSO.OpenTextFile(Server.MapPath(filename),1,True)
FiletempData = objCountFile.ReadAll
objCountFile.Close
FiletempData=Replace(FiletempData,Target,String)
Set objCountFile=objFSO.CreateTextFile(Server.MapPath(filename),True)
objCountFile.Write FiletempData
objCountFile.Close
Set objCountFile=Nothing
Set objFSO = Nothing
End Function
17.使用FSO读取文件内容的函数
function FSOFileRead(filename)
Dim objFSO,objCountFile,FiletempData
Set objFSO = Server.CreateObject("Scripting.FileSystemObject")
Set objCountFile = objFSO.OpenTextFile(Server.MapPath(filename),1,True)
FSOFileRead = objCountFile.ReadAll
objCountFile.Close
Set objCountFile=Nothing
Set objFSO = Nothing
End Function
18.使用FSO读取文件某一行的函数
function FSOlinedit(filename,lineNum)
if linenum < 1 then exit function
dim fso,f,temparray,tempcnt
set fso = server.CreateObject("scripting.filesystemobject")
if not fso.fileExists(server.mappath(filename)) then exit function
set f = fso.opentextfile(server.mappath(filename),1)
if not f.AtEndofStream then
tempcnt = f.readall
f.close
set f = nothing
temparray = split(tempcnt,chr(13)&chr(10))
if lineNum>ubound(temparray)+1 then
exit function
else
FSOlinedit = temparray(lineNum-1)
end if
end if
end function
19.使用FSO写文件某一行的函数
function FSOlinewrite(filename,lineNum,Linecontent)
if linenum < 1 then exit function
dim fso,f,temparray,tempCnt
set fso = server.CreateObject("scripting.filesystemobject")
if not fso.fileExists(server.mappath(filename)) then exit function
set f = fso.opentextfile(server.mappath(filename),1)
if not f.AtEndofStream then
tempcnt = f.readall
f.close
temparray = split(tempcnt,chr(13)&chr(10))
if lineNum>ubound(temparray)+1 then
exit function
else
temparray(lineNum-1) = lineContent
end if
tempcnt = join(temparray,chr(13)&chr(10))
set f = fso.createtextfile(server.mappath(filename),true)
f.write tempcnt
end if
f.close
set f = nothing
end function
20.使用FSO添加文件新行的函数
function FSOappline(filename,Linecontent)
dim fso,f
set fso = server.CreateObject("scripting.filesystemobject")
if not fso.fileExists(server.mappath(filename)) then exit function
set f = fso.opentextfile(server.mappath(filename),8,1)
f.write chr(13)&chr(10)&Linecontent
f.close
set f = nothing
end function


21.读文件最后一行的函数
function FSOlastline(filename)
dim fso,f,temparray,tempcnt
set fso = server.CreateObject("scripting.filesystemobject")
if not fso.fileExists(server.mappath(filename)) then exit function
set f = fso.opentextfile(server.mappath(filename),1)
if not f.AtEndofStream then
tempcnt = f.readall
f.close
set f = nothing
temparray = split(tempcnt,chr(13)&chr(10))
FSOlastline = temparray(ubound(temparray))
end if
end function
利用FSO取得BMP,JPG,PNG,GIF文件信息(大小,宽、高等)
<%
'::: BMP, GIF, JPG and PNG ::: 

'::: This function gets a specified number of bytes from any :::
'::: file, starting at the offset (base 1) :::
'::: :::
'::: Passed: :::
'::: flnm => Filespec of file to read :::
'::: offset => Offset at which to start reading :::
'::: bytes => How many bytes to read :::
'::: :::
':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
function GetBytes(flnm, offset, bytes)
Dim objFSO
Dim objFTemp
Dim objTextStream
Dim lngSize
on error resume next
Set objFSO = CreateObject("Scripting.FileSystemObject") 

' First, we get the filesize
Set objFTemp = objFSO.GetFile(flnm)
lngSize = objFTemp.Size
set objFTemp = nothing
fsoForReading = 1
Set objTextStream = objFSO.OpenTextFile(flnm, fsoForReading)
if offset > 0 then
strBuff = objTextStream.Read(offset - 1)
end if
if bytes = -1 then ' Get All!
GetBytes = objTextStream.Read(lngSize) 'ReadAll
else
GetBytes = objTextStream.Read(bytes)
end if
objTextStream.Close
set objTextStream = nothing
set objFSO = nothing
end function 

':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
'::: :::
'::: Functions to convert two bytes to a numeric value (long) :::
'::: (both little-endian and big-endian) :::
'::: :::
':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
function lngConvert(strTemp)
lngConvert = clng(asc(left(strTemp, 1)) + ((asc(right(strTemp, 1)) * 256)))
end function
function lngConvert2(strTemp)
lngConvert2 = clng(asc(right(strTemp, 1)) + ((asc(left(strTemp, 1)) * 256)))
end function 

':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
'::: :::
'::: This function does most of the real work. It will attempt :::
'::: to read any file, regardless of the extension, and will :::
'::: identify if it is a graphical image. :::
'::: :::
'::: Passed: :::
'::: flnm => Filespec of file to read :::
'::: width => width of image :::
'::: height => height of image :::
'::: depth => color depth (in number of colors) :::
'::: strImageType=> type of image (e.g. GIF, BMP, etc.) :::
'::: :::
':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
function gfxSpex(flnm, width, height, depth, strImageType)
dim strPNG
dim strGIF
dim strBMP
dim strType
strType = ""
strImageType = "(unknown)"
gfxSpex = False
strPNG = chr(137) & chr(80) & chr(78)
strGIF = "GIF"
strBMP = chr(66) & chr(77)
strType = GetBytes(flnm, 0, 3)
if strType = strGIF then ' is GIF
strImageType = "GIF"
Width = lngConvert(GetBytes(flnm, 7, 2))
Height = lngConvert(GetBytes(flnm, 9, 2))
Depth = 2 ^ ((asc(GetBytes(flnm, 11, 1)) and 7) + 1)
gfxSpex = True
elseif left(strType, 2) = strBMP then ' is BMP
strImageType = "BMP"
Width = lngConvert(GetBytes(flnm, 19, 2))
Height = lngConvert(GetBytes(flnm, 23, 2))
Depth = 2 ^ (asc(GetBytes(flnm, 29, 1)))
gfxSpex = True
elseif strType = strPNG then ' Is PNG
strImageType = "PNG"
Width = lngConvert2(GetBytes(flnm, 19, 2))
Height = lngConvert2(GetBytes(flnm, 23, 2))
Depth = getBytes(flnm, 25, 2)
select case asc(right(Depth,1))
case 0
Depth = 2 ^ (asc(left(Depth, 1)))
gfxSpex = True
case 2
Depth = 2 ^ (asc(left(Depth, 1)) * 3)
gfxSpex = True
case 3
Depth = 2 ^ (asc(left(Depth, 1))) '8
gfxSpex = True
case 4
Depth = 2 ^ (asc(left(Depth, 1)) * 2)
gfxSpex = True
case 6
Depth = 2 ^ (asc(left(Depth, 1)) * 4)
gfxSpex = True
case else
Depth = -1
end select 

else
strBuff = GetBytes(flnm, 0, -1) ' Get all bytes from file
lngSize = len(strBuff)
flgFound = 0
strTarget = chr(255) & chr(216) & chr(255)
flgFound = instr(strBuff, strTarget)
if flgFound = 0 then
exit function
end if
strImageType = "JPG"
lngPos = flgFound + 2
ExitLoop = false
do while ExitLoop = False and lngPos < lngSize 

do while asc(mid(strBuff, lngPos, 1)) = 255 and lngPos < lngSize
lngPos = lngPos + 1
loop
if asc(mid(strBuff, lngPos, 1)) < 192 or asc(mid(strBuff, lngPos, 1)) > 195 then
lngMarkerSize = lngConvert2(mid(strBuff, lngPos + 1, 2))
lngPos = lngPos + lngMarkerSize + 1
else
ExitLoop = True
end if
loop
'
if ExitLoop = False then
Width = -1
Height = -1
Depth = -1
else
Height = lngConvert2(mid(strBuff, lngPos + 4, 2))
Width = lngConvert2(mid(strBuff, lngPos + 6, 2))
Depth = 2 ^ (asc(mid(strBuff, lngPos + 8, 1)) * 8)
gfxSpex = True
end if 

end if
end function 

':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
'::: Test Harness :::
'::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 

' To test, we'll just try to show all files with a .GIF extension in the root of C:
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objF = objFSO.GetFolder("c:\")
Set objFC = objF.Files
response.write "<table border=""0"" cellpadding=""5"">"
For Each f1 in objFC
if instr(ucase(f1.Name), ".GIF") then
response.write "<tr><td>" & f1.name & "</td><td>" & f1.DateCreated & "</td><td>" & f1.Size & "</td><td>"
if gfxSpex(f1.Path, w, h, c, strType) = true then
response.write w & " x " & h & " " & c & " colors"
else
response.write " "
end if
response.write "</td></tr>"
end if
Next
response.write "</table>"
set objFC = nothing
set objF = nothing
set objFSO = nothing 

%>


24.点击返回上页代码:
<form>
<p><input TYPE="button" value="返回上一步" onCLICK="history.back(-1)"></p>
</form>
24.点击刷新代码:
<form>
<p><input TYPE="button" value="刷新按钮一" onCLICK="ReloadButton()"></p>
</form>
<script language="javascript"><!--
function ReloadButton(){location.href="allbutton.htm";}
// --></script> 

24.点击刷新代码2:
<form>
<p><input TYPE="button" value="刷新按钮二" onClick="history.go(0)"> </p>
</form> 

<form>
<p><input TYPE="button" value="打开一个网站" onCLICK="HomeButton()"></p>
</form>
<script language="javascript"><!--
function HomeButton(){location.href="http://nettrain.126.com";;;;}
// --></script> 

25.弹出警告框代码:
<form>
<p><input TYPE="button" value="弹出警告框" onCLICK="AlertButton()"></p>
</form>
<script language="javascript"><!--
function AlertButton(){window.alert("要多多光临呀!");}
// --></script> 

26.状态栏信息
<form>
<p><input TYPE="button" value="状态栏信息" onCLICK="StatusButton()"></p>
</form>
<script language="javascript"><!--
function StatusButton(){window.status="要多多光临呀!";}
// --></script> 

27.背景色变换
<form>
<p><input TYPE="button" value="背景色变换" onClick="BgButton()"></p>
</form>
<script>function BgButton(){
if (document.bgColor=='#00ffff')
{document.bgColor='#ffffff';}
else{document.bgColor='#00ffff';}
}
</script> 

28.点击打开新窗口
<form>
<p><input TYPE="button" value="打开新窗口" onCLICK="NewWindow()"></p>
</form>
<script language="javascript"><!--
function NewWindow(){window.open("http://www.mcmx.com";;;,"","height=240,width=

340,status=no,location=no,toolbar=no,directories=no,menubar=no");}
// --></script></body>
29.分页代码:
<%''本程序文件名为:Pages.asp%>
<%''包含ADO常量表文件adovbs.inc,可从"\Program Files\Common Files\System\ADO"目录下拷贝%>
<!--#Include File="adovbs.inc"-->
<%''*建立数据库连接,这里是Oracle8.05数据库
Set conn=Server.CreateObject("ADODB.Connection")
conn.Open "Provider=msdaora.1;Data Source=YourSrcName;User ID=YourUserID;Password=YourPassword;"  

Set rs=Server.CreateObject("ADODB.Recordset") ''创建Recordset对象
rs.CursorLocation=adUseClient ''设定记录集指针属性
''*设定一页内的记录总数,可根据需要进行调整
rs.PageSize=10  

''*设置查询语句
StrSQL="Select ID,姓名,住址,电话 from 通讯录 order By ID"
rs.Open StrSQL,conn,adOpenStatic,adLockReadOnly,adCmdText
%>
<HTML>
<HEAD>
<title>分页示例</title>
<script language=javascript>
//点击"[第一页]"时响应:
function PageFirst()
{
document.MyForm.CurrentPage.selectedIndex=0;
document.MyForm.CurrentPage.onchange();
}
//点击"[上一页]"时响应:
function PagePrior()
{
document.MyForm.CurrentPage.selectedIndex--;
document.MyForm.CurrentPage.onchange();
}
//点击"[下一页]"时响应:
function PageNext()
{
document.MyForm.CurrentPage.selectedIndex++;
document.MyForm.CurrentPage.onchange();
}
//点击"[最后一页]"时响应:
function PageLast()
{
document.MyForm.CurrentPage.selectedIndex=document.MyForm.CurrentPage.length-1;
document.MyForm.CurrentPage.onchange();
}
//选择"第?页"时响应:
function PageCurrent()
{ //Pages.asp是本程序的文件名
document.MyForm.action='Pages.asp?Page='+(document.MyForm.CurrentPage.selectedIndex+1)
document.MyForm.submit();
}
</Script>
</HEAD>
<BODY bgcolor="#ffffcc" link="#008000" vlink="#008000" alink="#FF0000""> 

<%IF rs.Eof THEN
Response.Write("<font size=2 color=#000080>[数据库中没有记录!]</font>")
ELSE
''指定当前页码
If Request("CurrentPage")="" Then
rs.AbsolutePage=1
Else
rs.AbsolutePage=CLng(Request("CurrentPage"))
End If  

''创建表单MyForm,方法为Get
Response.Write("<form method=Get name=MyForm>")
Response.Write("<p align=center><font size=2 color=#008000>")
''设置翻页超链接
if rs.PageCount=1 then
Response.Write("[第一页] [上一页] [下一页] [最后一页] ")
else
if rs.AbsolutePage=1 then
Response.Write("[第一页] [上一页] ")
Response.Write("[<a href=java script:PageNext()>下一页</a>] ")
Response.Write("[<a href=java script:PageLast()>最后一页</a>] ")
else
if rs.AbsolutePage=rs.PageCount then
Response.Write("[<a href=java script:PageFirst()>第一页</a>] ")
Response.Write("[<a href=java script:PagePrior()>上一页</a>] ")
Response.Write("[下一页] [最后一页] ")
else
Response.Write("[<a href=java script:PageFirst()>第一页</a>] ")
Response.Write("[<a href=java script:PagePrior()>上一页</a>] ")
Response.Write("[<a href=java script:PageNext()>下一页</a>] ")
Response.Write("[<a href=java script:PageLast()>最后一页</a>] ")
end if
end if
end if 

''创建下拉列表框,用于选择浏览页码
Response.Write("第<select size=1 name=CurrentPage onchange=PageCurrent()>")
For i=1 to rs.PageCount
if rs.AbsolutePage=i then
Response.Write("<option selected>"&i&"</option>") ''当前页码
else
Response.Write("<option>"&i&"</option>")
end if
Next
Response.Write("</select>页/共"&rs.PageCount&"页 共"&rs.RecordCount&"条记录</font><p>")
Response.Write("</form>") 

''创建表格,用于显示
Response.Write("<table align=center cellspacing=1 cellpadding=1 border=1")
Response.Write(" bordercolor=#99CCFF bordercolordark=#b0e0e6 bordercolorlight=#000066>") 

Response.Write("<tr bgcolor=#ccccff bordercolor=#000066>")  

Set Columns=rs.Fields  

''显示表头
For i=0 to Columns.Count-1
Response.Write("<td align=center width=200 height=13>")
Response.Write("<font size=2><b>"&Columns(i).name&"</b></font></td>")
Next
Response.Write("</tr>")
''显示内容
For i=1 to rs.PageSize
Response.Write("<tr bgcolor=#99ccff bordercolor=#000066>")
For j=0 to Columns.Count-1
Response.Write("<td><font size=2>"&Columns(j)&"</font></td>")
Next
Response.Write("</tr>") 

rs.movenext
if rs.EOF then exit for
Next 

Response.Write("</table>")  

END IF
%>
</BODY>
</HTML>


24.点击返回上页代码:
<form>
<p><input TYPE="button" value="返回上一步" onCLICK="history.back(-1)"></p>
</form>
24.点击刷新代码:
<form>
<p><input TYPE="button" value="刷新按钮一" onCLICK="ReloadButton()"></p>
</form>
<script language="javascript"><!--
function ReloadButton(){location.href="allbutton.htm";}
// --></script> 

24.点击刷新代码2:
<form>
<p><input TYPE="button" value="刷新按钮二" onClick="history.go(0)"> </p>
</form> 

<form>
<p><input TYPE="button" value="打开一个网站" onCLICK="HomeButton()"></p>
</form>
<script language="javascript"><!--
function HomeButton(){location.href="http://nettrain.126.com";;;;}
// --></script> 

25.弹出警告框代码:
<form>
<p><input TYPE="button" value="弹出警告框" onCLICK="AlertButton()"></p>
</form>
<script language="javascript"><!--
function AlertButton(){window.alert("要多多光临呀!");}
// --></script> 

26.状态栏信息
<form>
<p><input TYPE="button" value="状态栏信息" onCLICK="StatusButton()"></p>
</form>
<script language="javascript"><!--
function StatusButton(){window.status="要多多光临呀!";}
// --></script> 

27.背景色变换
<form>
<p><input TYPE="button" value="背景色变换" onClick="BgButton()"></p>
</form>
<script>function BgButton(){
if (document.bgColor=='#00ffff')
{document.bgColor='#ffffff';}
else{document.bgColor='#00ffff';}
}
</script> 

28.点击打开新窗口
<form>
<p><input TYPE="button" value="打开新窗口" onCLICK="NewWindow()"></p>
</form>
<script language="javascript"><!--
function NewWindow(){window.open("http://www.mcmx.com";;;,"","height=240,width=

340,status=no,location=no,toolbar=no,directories=no,menubar=no");}
// --></script></body>
29.分页代码:
<%''本程序文件名为:Pages.asp%>
<%''包含ADO常量表文件adovbs.inc,可从"\Program Files\Common Files\System\ADO"目录下拷贝%>
<!--#Include File="adovbs.inc"-->
<%''*建立数据库连接,这里是Oracle8.05数据库
Set conn=Server.CreateObject("ADODB.Connection")
conn.Open "Provider=msdaora.1;Data Source=YourSrcName;User ID=YourUserID;Password=YourPassword;"  

Set rs=Server.CreateObject("ADODB.Recordset") ''创建Recordset对象
rs.CursorLocation=adUseClient ''设定记录集指针属性
''*设定一页内的记录总数,可根据需要进行调整
rs.PageSize=10  

''*设置查询语句
StrSQL="Select ID,姓名,住址,电话 from 通讯录 order By ID"
rs.Open StrSQL,conn,adOpenStatic,adLockReadOnly,adCmdText
%>
<HTML>
<HEAD>
<title>分页示例</title>
<script language=javascript>
//点击"[第一页]"时响应:
function PageFirst()
{
document.MyForm.CurrentPage.selectedIndex=0;
document.MyForm.CurrentPage.onchange();
}
//点击"[上一页]"时响应:
function PagePrior()
{
document.MyForm.CurrentPage.selectedIndex--;
document.MyForm.CurrentPage.onchange();
}
//点击"[下一页]"时响应:
function PageNext()
{
document.MyForm.CurrentPage.selectedIndex++;
document.MyForm.CurrentPage.onchange();
}
//点击"[最后一页]"时响应:
function PageLast()
{
document.MyForm.CurrentPage.selectedIndex=document.MyForm.CurrentPage.length-1;
document.MyForm.CurrentPage.onchange();
}
//选择"第?页"时响应:
function PageCurrent()
{ //Pages.asp是本程序的文件名
document.MyForm.action='Pages.asp?Page='+(document.MyForm.CurrentPage.selectedIndex+1)
document.MyForm.submit();
}
</Script>
</HEAD>
<BODY bgcolor="#ffffcc" link="#008000" vlink="#008000" alink="#FF0000""> 

<%IF rs.Eof THEN
Response.Write("<font size=2 color=#000080>[数据库中没有记录!]</font>")
ELSE
''指定当前页码
If Request("CurrentPage")="" Then
rs.AbsolutePage=1
Else
rs.AbsolutePage=CLng(Request("CurrentPage"))
End If  

''创建表单MyForm,方法为Get
Response.Write("<form method=Get name=MyForm>")
Response.Write("<p align=center><font size=2 color=#008000>")
''设置翻页超链接
if rs.PageCount=1 then
Response.Write("[第一页] [上一页] [下一页] [最后一页] ")
else
if rs.AbsolutePage=1 then
Response.Write("[第一页] [上一页] ")
Response.Write("[<a href=java script:PageNext()>下一页</a>] ")
Response.Write("[<a href=java script:PageLast()>最后一页</a>] ")
else
if rs.AbsolutePage=rs.PageCount then
Response.Write("[<a href=java script:PageFirst()>第一页</a>] ")
Response.Write("[<a href=java script:PagePrior()>上一页</a>] ")
Response.Write("[下一页] [最后一页] ")
else
Response.Write("[<a href=java script:PageFirst()>第一页</a>] ")
Response.Write("[<a href=java script:PagePrior()>上一页</a>] ")
Response.Write("[<a href=java script:PageNext()>下一页</a>] ")
Response.Write("[<a href=java script:PageLast()>最后一页</a>] ")
end if
end if
end if 

''创建下拉列表框,用于选择浏览页码
Response.Write("第<select size=1 name=CurrentPage onchange=PageCurrent()>")
For i=1 to rs.PageCount
if rs.AbsolutePage=i then
Response.Write("<option selected>"&i&"</option>") ''当前页码
else
Response.Write("<option>"&i&"</option>")
end if
Next
Response.Write("</select>页/共"&rs.PageCount&"页 共"&rs.RecordCount&"条记录</font><p>")
Response.Write("</form>") 

''创建表格,用于显示
Response.Write("<table align=center cellspacing=1 cellpadding=1 border=1")
Response.Write(" bordercolor=#99CCFF bordercolordark=#b0e0e6 bordercolorlight=#000066>") 

Response.Write("<tr bgcolor=#ccccff bordercolor=#000066>")  

Set Columns=rs.Fields  

''显示表头
For i=0 to Columns.Count-1
Response.Write("<td align=center width=200 height=13>")
Response.Write("<font size=2><b>"&Columns(i).name&"</b></font></td>")
Next
Response.Write("</tr>")
''显示内容
For i=1 to rs.PageSize
Response.Write("<tr bgcolor=#99ccff bordercolor=#000066>")
For j=0 to Columns.Count-1
Response.Write("<td><font size=2>"&Columns(j)&"</font></td>")
Next
Response.Write("</tr>") 

rs.movenext
if rs.EOF then exit for
Next 

Response.Write("</table>")  

END IF
%>
</BODY>
</HTML>


ASP与数据库应用(给初学者)


一般来说,一个真正的、完整的站点是离不开数据库的,因为实际应用中,需要保存的数据很多,而且这些数据之间往往还有关联,利用数据库来管理这些数据,可以很方便的查询和更新。数据库有很多种,如:Fox 数据库(.dbf)、Access 数据库(.mdb)、Informix、Oracle 和 SQL Server 等等,在这里,我将以 Microsoft Access 数据库为例来说明ASP是如何访问数据库的。

常用数据库语句

  1.Select 语句:命令数据库引擎从数据库里返回信息,作为一组记录。
  2.Insert INTO 语句:添加一个或多个记录至一个表。
  3.Update 语句:创建更新查询来改变基于特定准则的指定表中的字段值。
  4.Delete 语句:创建一个删除查询把记录从 FROM 子句列出并符合 Where 子句的一个或更多的表中清除。
  5.EXECUTE 语句:用于激活 PROCEDURE(过程)

用 ASP 来做一个自己的通讯录练练手吧……

一、建立数据库:

  用 Microsoft Access 建立一个名为 data.mdb 的空数据库,使用设计器创建一个新表。输入以下几个字段:

  字段名称  数据类型  说明      其它
  ID     自动编号  数据标识    字段大小:长整型 新值:递增 索引:有(无重复)
  username  文本    姓名      缺省值
  usermail  文本    E-mail     缺省值
  view    数字    查看次数    字段大小:长整型 默认值:0 索引:无
  indate   时间日期  加入时间    缺省值

  保存为 data.mdb 文件,为了便于说明,只是做了一个比较简单的库。

二、连接数据库

  方法1:
  Set conn = Server.CreateObject("ADODB.Connection")
  conn.Open "driver={Microsoft Access Driver (*.mdb)};dbq="&Server.MapPath("data.mdb")

  方法2:
  Set conn = Server.CreateObject("ADODB.Connection")
  conn.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="&Server.MapPath("data.mdb")

  注意:一个页面中,只要连接一次就可以了,数据库使用完后要及时关闭连接。
  conn.Close
  Set conn = Nothing

三、添加新记录到数据库

  Set conn = Server.CreateObject("ADODB.Connection")
  conn.Open "driver={Microsoft Access Driver (*.mdb)};dbq="&Server.MapPath("data.mdb")

  username = "风云突变"
  usermail = "fytb@163.com"
  indate = Now()

  sql = "insert into data (username,usermail,indata) values('"&username&"','"&usermail&"','"&indate&"')"
  conn.Execute(sql)

  conn.Close
  Set conn = Nothing

  说明:建立数据库连接;通过表单获取姓名、E-mail 字符串,Now()获取当前时间日期;使用 insert into 语句添加新记录;conn.Execute 来执行;最后关闭。

四、选择数据库里的记录

  1.选择所有记录的字段(按记录倒序排序):sql = "select * from data order by ID desc"
  2.选择所有记录的姓名和E-mail字段(不排序):sql = "select username,usermail from data"
  3.选择姓名为“风云突变”的所有记录:sql = "select * from data where username='"风云突变"'"
  4.选择使用 163 信箱的所有记录(按查看次数排序):sql = "select * from data where usermail like '%"@163.com"%' order by view desc"
  5.选择最新的10个记录:sql = "select top 10 * from data order by ID desc"

  SQL 语句已经知道了,不过在Web应用时,还得创建一个 RecordSet 对象得到记录集,才能把从数据库里取出的值应用在网页上,如果现在将所有的记录显示在网页上就这样:

  Set conn = Server.CreateObject("ADODB.Connection")
  conn.Open "driver={Microsoft Access Driver (*.mdb)};dbq="&Server.MapPath("data.mdb")

  sql = "select * from data"
  Set rs = Server.CreateObject("ADODB.RecordSet")
  rs.Open sql,conn,1,1

  Do While Not rs.Eof
    Response.Write "<p>姓名:"& rs("username") &" E-mail:"& rs("usermail") &" 查看:"& rs("view") &"次 "& rs("indate") &"加入</p>"
    rs.MoveNext
  Loop

  rs.Close
  Set rs = Nothing
  conn.Close
  Set conn = Nothing

  说明:建立数据库连接;创建 rs 得到记录集;循环显示记录,rs.Eof 表示记录末,rs.MoveNext 表示移到下一个记录;最后关闭。

五、修改(更新)数据库记录

  修改记录的E-mail:

  Set conn = Server.CreateObject("ADODB.Connection")
  conn.Open "driver={Microsoft Access Driver (*.mdb)};dbq="&Server.MapPath("data.mdb")

  ID = 1
  usermail = "fytb@163.com"

  sql = "update data set usermail='"&usermail&"' where ID="&CInt(ID)
  conn.Execute(sql)

  conn.Close
  Set conn = Nothing

  说明:建立数据库连接;获取记录ID、新 E-mail 字符串;使用 update 语句修改记录;conn.Execute 来执行;最后关闭。
  如果使记录的查看值加1,则:sql = "update data set view=view+1 where ID="&CInt(ID)

六、删除数据库记录

  删除某一条记录:

  Set conn = Server.CreateObject("ADODB.Connection")
  conn.Open "driver={Microsoft Access Driver (*.mdb)};dbq="&Server.MapPath("data.mdb")

  ID = 1

  sql = "delete from data where ID="&CInt(ID)
  conn.Execute(sql)

  conn.Close
  Set conn = Nothing

  说明:建立数据库连接;获取记录ID;使用 delete 语句删除记录;conn.Execute 来执行;最后关闭。
  删除多条记录为:sql = "delete from data where ID in (ID1,ID2,ID3)"
  删除所有记录为:sql = "delete from data"

总结:

  以上教程是针对ASP的初学者而写的,只是介绍了一些基本的用法,在了解之后可以自己去试试,重要的在于能举一反三、综合运用。更多的语法和参数请参阅 Microsoft Access 帮助中的 Microsoft Jet SQL 参考

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