2008-6-18 21:16
寒冰
一个简单的采集程序
好久没来了,发个简单的采集程序,希望对新手有些帮助,高手就不用看了,怕笑掉你的大牙,哈哈/:haha3
<%
'声明取得目标信息的函数,通过xml组件进行实现。
function geturl(url)
set retrieval = createobject("microsoft.xmlhttp")
with retrieval
.open "get", url, false
.send
geturl = bytes2bstr(.responsebody)
'对取得信息进行验证,如果信息长度小于100则说明截取失败
if len(.responsebody)<100 then
response.write "获取远程文件 <a href="&url&" target=_blank>"&url&"</a> 失败。"
response.end
end if
end with
set retrieval = nothing
end function
'二进制转字符串,否则会出现乱码的!
function bytes2bstr(vin)
strreturn = ""
for i = 1 to lenb(vin)
thischarcode = ascb(midb(vin,i,1))
if thischarcode < &h80 then
strreturn = strreturn & chr(thischarcode)
else
nextcharcode = ascb(midb(vin,i+1,1))
strreturn = strreturn & chr(clng(thischarcode) * &h100 + cint(nextcharcode))
i = i + 1
end if
next
bytes2bstr = strreturn
end function
'声明截取的格式,从start开始截取,到last为结束
function getkey(html,start,last)
filearray=split(html,start)
filearray2=split(filearray(1),last)
getkey=filearray2(0)
end function
dim url,html,title
url="想要采集的网页"
html = geturl(url)
title = getkey(html,"开始标记","结束标记")
'将采集的数据插入数据库中
dim connstr,conn,rs,sql
c+server.mappath("db1.mdb")+";defaultdir=;driver={microsoft access driver (*.mdb)};"
set conn=server.createobject("adodb.connection")
conn.open connstr
set rs=server.createobject("adodb.recordset")
sql="select [列名] from [表名] where [列名]="&title&""
rs.open sql,conn,3,3
if rs.eof and rs.bof then
rs("列名")=title
rs.update
set rs=nothing
end if
set rs=nothing
response.write"采集完毕!"
%>