现在网上的采集程序很多，但是有时候你发现一个好的网站，想自己做个采集工具采集一些信息，就需要自己去写程序了，其实这样的采集程序并不难写，主要是去分析源网站的网页结构。
首先去下载个XMLHTTP的类文件：
<%
Class xhttp
private cset,sUrl,sError
Private Sub Class_Initialize()
'cset="UTF-8"
cset="GB2312"
sError=""
end sub
Private Sub Class_Terminate()
End Sub
Public Property LET URL(theurl)
sUrl=theurl
end property
public property GET BasePath()
BasePath=mid(sUrl,1,InStrRev(sUrl,"/")-1)
end property
public property GET FileName()
FileName=mid(sUrl,InStrRev(sUrl,"/")+1)
end property
public property GET Html()
Html=BytesToBstr(getBody(sUrl))
end property
public property GET xhttpError()
xhttpError=sError
end property
private Function BytesToBstr(body)
on error resume next
'Cset:GB2312 UTF-8
dim objstream
set objstream = Server.CreateObject("adodb.stream")
with objstream
.Type = 1 '
.Mode = 3 '
.Open
.Write body '
.Position = 0 '
.Type = 2 '
.Charset = Cset '
BytesToBstr = .ReadText '
.Close
end with
set objstream = nothing
End Function
private function getBody(surl)
on error resume next
dim xmlHttp
'Set xmlHttp=server.createobject("Msxml2.XMLHTTP.4.0")
'set xmlHttp=server.createobject("Microsoft.XMLHTTP")
set xmlHttp=server.createobject("MSXML2.ServerXMLHTTP")
xmlHttp.setTimeouts 10000,10000,10000,30000
xmlHttp.open "GET",surl,false
xmlHttp.send
if xmlHttp.readystate=4 then
'if xmlHttp.status=200 then
getBody=xmlhttp.responsebody
'end if
else
getBody=""
end if
if Err.Number<>0 then
sError=Err.Number
Err.clear
else
sError=""
end if
set xmlHttp=nothing
end function
Public function saveimage(tofile,isoverwrite)
on error resume next
dim objStream,objFSO,imgs
if Not isoverwrite Then
Set objFSO = Server.CreateObject("Scripting.FileSystemObject")
If objFSO.FileExists(Server.MapPath(tofile)) Then
Exit Function
End If
Set objFSO = Nothing
End IF
imgs=getBody(sUrl)
Set objStream = Server.CreateObject("ADODB.Stream")
with objStream
.Type =1
.Open
.write imgs
.SaveToFile server.mappath(tofile),2
.Close()
end with
set objstream=nothing
end function
end class
%>
用了这个类文件，做起事情来就方便多了。
然后就可以分析采集网站的网页结构，写采集程序了。
下面给个例子：
<!--#include file="conn.asp"-->
<!--#include file="inc/xhttp_class.asp"-->
<!--#include file="inc/function.asp"-->
<%
server.ScriptTimeout = 1000
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>BT采集器</title>
</head>
<body>
<form name="form1" method="post" action="get81bt.asp">
分类ID：
<input type="text" name="cid" value="<%=request("cid")%>"><br>
开始ID：
<input type="text" name="startid" value="<%=request("startid")%>">
<br>
结束ID：
<input type="text" name="overid" value="<%=request("overid")%>">
<br>
分类名称：<input type="text" name="classname" value="<%=request("classname")%>">为空自动获取
<br>
<input name="action" type="hidden" id="action" value="getdata">
<input type="submit" name="Submit" value="采集">
</form>
当前ID：<%=request("id")%> <br>
<%
dim action
action = Request("action")
if action = "getdata" then
cid = Request("cid")
startid = Request("startid")
overid = Request("overid")
id = Request("id")
if id = "" then id = startid
set objxhttp = new xhttp
objxhttp.URL = "http://www.81dd.com/Class/"&cid&"_"&id&".htm"
content = objxhttp.Html
if InStr(content,"网站维护中") then
call NextID
response.End()
end if
list = GetContent(content,"<!--内容开始-->","<!--内容结束-->",0)
Dim regEx, Match, Matches,patrn
Set regEx = New RegExp
patrn = "<a href=""../BtHtml/(.+?)"">"
regEx.Pattern = patrn
regEx.IgnoreCase = True
regEx.Global = True
Set Matches = regEx.Execute(list)
on error resume next
For Each Match in Matches
'response.write Match.Value & "<br>"
weburl = "http://www.81dd.com/BtHtml/" & regEx.Replace(Match.Value,"$1")
response.write weburl & "<br>"
response.Flush()
objxhttp.URL = weburl
cpage = objxhttp.Html
cpage = GetContent(cpage,"<!--内容开始-->","<!--内容结束-->",0)
title = GetContent(cpage,"BT资源名称：<strong>","</strong>",0)
title = stripHTML(title)
IF Request("classname") <> "" then
classname = Request("classname")
Else
if InStr(title,"喜剧") then
classname = "喜剧"
Elseif InStr(title,"动作") then
classname = "动作"
Elseif InStr(title,"惊悚") then
classname = "惊悚"
Elseif InStr(title,"犯罪") then
classname = "犯罪"
Elseif InStr(title,"恐怖") then
classname = "恐怖"
Elseif InStr(title,"爱情") then
classname = "爱情"
Elseif InStr(title,"冒险") then
classname = "冒险"
Elseif InStr(title,"科幻") then
classname = "科幻"
Elseif InStr(title,"悬念") then
classname = "悬念"
Elseif InStr(title,"奇幻") then
classname = "奇幻"
Elseif InStr(title,"战争") then
classname = "战争"
Elseif InStr(title,"连续剧") then
classname = "连续剧"
Elseif InStr(title,"综艺") then
classname = "综艺"
Elseif InStr(title,"灾难") then
classname = "灾难"
Elseif InStr(title,"伦理") then
classname = "伦理"
Elseif InStr(title,"动漫") or InStr(title,"动画") then
classname = "动漫"
Elseif InStr(title,"国语") or InStr(title,"集") then
classname = "其他影视"
Else
classname = "其他"
End if
End IF
intro = GetContent(cpage,"<tr><td width=770 bgcolor=#FFFFFF><div style=""margin:10px;line-height:150%"">","</div>",0)
intro = Replace(intro,"<br />","[br]")
intro = Replace(intro,"<BR />","[br]")
intro = Replace(intro,"<BR>","[br]")
intro = Replace(intro,"<br>","[br]")
intro = Replace(intro,"<p>","[p]")
intro = Replace(intro,"<P>","[p]")
intro = Replace(intro,"</p>","[/p]")
intro = Replace(intro,"</P>","[p]")
intro = Replace(intro,"<img","[img")
intro = Replace(intro,"<IMG","[img")
intro = stripHTML(intro)
intro = Replace(intro,"[br]","<br>")
intro = Replace(intro,"[p]","<p>")
intro = Replace(intro,"[/p]","</p>")
intro = Replace(intro,"[img","<img")
intro = Replace(intro,"[img]","<img src="/UploadFiles/2021-04-02/)
intro = Replace(intro,"> intro = Replace(intro,"[IMG]","<img src=")
intro = Replace(intro,"> 'response.write t
'response.End()
addtime = Trim(GetContent(cpage,"发布时间："," ",0))
if Not IsDate(addtime) then addtime = now()
username = "bt"
filesize = GetContent(content,"BT文件大小："," ",0)
title2 = title
downurl = GetContent(cpage,"<a style=""color:red"" href=""","""",0)
p = CDate(addtime)
Dim sRnd
Randomize
sRnd = Int(900 * Rnd) + 100
sFileName = year(p) & month(p) & day(p) & hour(now) & minute(now) & second(now) & sRnd & ".torrent"
url = "torrent/" & year(p) & "-" & month(p) & "-" & day(p) & "/" & sFileName
Call CreateF(url)
'Text
Response.Write classname & "<br>"
Response.write title & "<br>"
'response.Write intro & "<br>"
'response.Write addtime & "<br>"
'response.Write username & "<br>"
'response.Write filesize & "<br>"
response.Write downurl & "<br>"
response.Write url & "<br>"
response.Flush()
'response.End()
'database
if err.number = 0 then
if (Not IsNull(title)) and title <> "" and downurl <> "" then
set rs = server.CreateObject("adodb.recordset")
sql = "select * from bt_class where classname = '" & classname & "'"
rs.open sql,conn,1,3
if rs.eof then
rs.addnew
rs("classname") = classname
rs.update
end if
classid = rs("classid")
rs.close
set rs = nothing
set rs = server.CreateObject("adodb.recordset")
sql = "select * from bt_movie where title in ('" & title & "')"
rs.open sql,conn,1,3
if rs.eof then
response.Write "<div><font color=blue>写入数据库...</font></div>"
response.Flush()
rs.addnew
rs("classid") = classid
rs("title") = title
rs("title2") = title2
rs("intro") = intro
rs("username") = username
rs("filesize") = filesize
rs("url") = url
rs("serverid") = 1
rs("addtime") = addtime
rs("ismake") = 0
rs.update
objxhttp.URL = downurl
objxhttp.saveimage url,False
else
response.Write "<div><font color=red>已经存在！</font></div>"
end if
rs.close
set rs = nothing
'objxhttp.URL = downurl
'objxhttp.saveimage url,False
End IF
Else
err.clear
End IF
response.Write "-------------------------------------------<br>"
Next
set regEx = nothing
response.Write "下一页<br>"
response.Flush()
Call NextID()
end if
Sub NextID
conn.close
set conn = nothing
if cint(startid) < cint(overid) and cint(id) < cint(overid) then
response.Write "<script>location.href='get81bt.asp?action=getdata&classname=" & Request("classname") & "&cid=" & cid & "&startid=" & startid & "&overid=" & overid & "&id="& id + 1 &"'</script>"
Elseif cint(startid) > cint(overid) and cint(id) > cint(overid) then
response.Write "<script>location.href='get81bt.asp?action=getdata&classname=" & Request("classname") & "&cid=" & cid & "&startid=" & startid & "&overid=" & overid & "&id="& id - 1 &"'</script>"
Else
Response.Write "采集完成！<br>"
response.End()
End if
End Sub
%>
</body>
</html>
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