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实例讲解实现抓取网上房产信息的ASP程序

  • 时间:2022-04-11 06:35 编辑: 来源: 阅读:
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摘要:实例讲解实现抓取网上房产信息的ASP程序
<%@LANGUAGE=" CODEPAGE="936"%> <!-- #include file="conn.asp" --> <!-- #include file="inc/function.asp" --> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "[url=http://www.w3.org/TR/html4/loose.dtd]http://www.w3.org/TR/html4/loose.dtd[/url]"> <html> <head> <title>Untitled Document</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <meta http-equiv="refresh" content="300;URL=steal_house.asp"> </head> <body> <% on error resume next ' Server.ScriptTimeout = 999999 '======================================================== '字符编码函数 '==================================================== Function BytesToBstr(body,code)         dim objstream         set objstream = Server.CreateObject("adodb.stream")         objstream.Type = 1         objstream.Mode =3         objstream.Open         objstream.Write body         objstream.Position = 0         objstream.Type = 2         objstream.Charset =code         BytesToBstr = objstream.ReadText          objstream.Close         set objstream = nothing End Function '取行字符串在另一字符串中的出现位置 Function Newstring(wstr,strng)         Newstring=Instr(lcase(wstr),lcase(strng))         if Newstring<=0 then Newstring=Len(wstr) End Function '替换字符串函数 function ReplaceStr(ori,str1,str2) ReplaceStr=replace(ori,str1,str2) end function '==================================================== function ReadXml(url,code,start,ends) set oSend=createobject("Microsoft.XMLHTTP") SourceCode = oSend.open ("GET",url,false) oSend.send() ReadXml=BytesToBstr(oSend.responseBody,code ) start=Instr(ReadXml,start) ReadXml=mid(ReadXml,start) ends=Instr(ReadXml,ends) ReadXml=left(ReadXml,ends-1) end function function SubStr(body,start,ends) start=Instr(body,start) SubStr=mid(body,start+len(start)+1) ends=Instr(SubStr,ends) SubStr=left(SubStr,ends-1) end function dim getcont,NewsContent dim url,title url="[url=http://www.***.com%22]http://www.***.com"'[/url]新闻网址knowsky.com getcont=ReadXml(url,"gb2312","<table class=k2 border=""0""","</table>") getcont=RegexHtml(getcont) dim KeyId,NewsClass,City,Position,HouseType,Level,Area,Price,Demostra dim ContactMan,Contact for i=2 to ubound(getcont)  response.Write(getcont(i)&"__<br>")  tempLink=mid(getcont(i),instr(getcont(i),"href=""")+6,instr(getcont(i),""" onClick")-10)  tempLink=replace(tempLink,"../","")  response.Write(i&":"&tempLink&"<br>")  NewsContent=ReadXml(tempLink,"gb2312","<td valign=""bottom"" width=""400"">","<hr width=""760"" noshade size=""1"" color=""#808080""> ")  NewsContent=RemoveHtml(NewsContent)  NewsContent=replace(NewsContent,VbCrLf,"")  NewsContent=replace(NewsContent,vbNewLine,"")  NewsContent=replace(NewsContent," ","")  NewsContent=replace(NewsContent," ","")  NewsContent=replace(NewsContent," ","")  NewsContent=replace(NewsContent,"\n","")  NewsContent=replace(NewsContent,chr(10),"")  NewsContent=replace(NewsContent,chr(13),"")  '===============get Content=======================  response.Write(NewsContent)  KeyId=SubStr(NewsContent,"列号:","信息类别:")  NewsClass=SubStr(NewsContent,"类别:","所在城市:")  City=SubStr(NewsContent,"城市:","房屋具体位置:")  Position=SubStr(NewsContent,"位置:","房屋类型:")  HouseType=SubStr(NewsContent,"类型:","楼层:")  Level=SubStr(NewsContent,"楼层:","使用面积:")  Area=SubStr(NewsContent,"面积:","房价:")  Price=SubStr(NewsContent,"房价:","其他说明:")  Demostra=SubStr(NewsContent,"说明:","联系人:")  ContactMan=SubStr(NewsContent,"联系人:","联系方式:")  Contact=SubStr(NewsContent,"联系方式:","信息来源:")  response.Write("总序列号:"&KeyId&"<br>")  response.Write("信息类别:"&NewsClass&"<br>")  response.Write("所在城市:"&City&"<br>")  response.Write("房屋具体位置:"&Position&"<br>")  response.Write("房屋类型:"&HouseType&"<br>")  response.Write("楼层:"&Level&"<br>")  response.Write("使用面积:"&Area&"<br>")  response.Write("房价:"&Price&"<br>")  response.Write("其他说明:"&Demostra&"<br>")  response.Write("联系人:"&ContactMan&"<br>")  response.Write("联系方式:"&Contact&"<br>")  'title=RemoveHTML(aa(i))  'response.Write("title:"&title)  for n=0 to application.Contents.count    if(application.Contents(n)=KeyId) then     ifexit=true        end if    next   if not ifexit then    application(time&i)=KeyId  '添加到[url=http://www.knowsky.com/sql.asp]数据库[/url]  '====================================================  set rs=server.CreateObject("adodb.recordset")  rs.open "select top 1 * from news order by id desc",conn,3,3  rs.addnew  rs("NewsClass")=NewsClass  rs("City")=City  rs("Position")=Position  rs("HouseType")=HouseType  rs("Level")=Level  rs("Area")=Area  rs("Price")=Price  rs("Demostra")=Demostra  rs("ContactMan")=ContactMan  rs("Contact")=Contact  rs.update  rs.close  set rs=nothing  end if  '================================================== next function RemoveTag(body)  Set regEx = New RegExp  regEx.Pattern = "<[a].*?<\/[a]>"  regEx.IgnoreCase = True  regEx.Global = True  Set Matches = regEx.Execute(body)  dim i,arr(15),ifexit  i=0  j=0  For Each Match in Matches   TempStr = Match.Value    TempStr=replace(TempStr,"<td>","")   TempStr=replace(TempStr,"</td>","")   TempStr=replace(TempStr,"<tr>","")   TempStr=replace(TempStr,"</tr>","")    arr(i)=TempStr    i=i+1   if(i>=15) then    exit for   end if  Next  Set regEx=nothing  Set Matches =nothing  RemoveTag=arr end function function RegexHtml(body)  dim r_arr(47),r_temp  Set regEx2 = New RegExp  regEx2.Pattern ="<a.*?<\/a>"  regEx2.IgnoreCase = True  regEx2.Global = True  Set Matches2 = regEx2.Execute(body)  iii=0  For Each Match in Matches2   r_arr(iii)=Match.Value   iii=iii+1   Next  RegexHtml=r_arr  set regEx2=nothing  set Matches2=nothing end function '====================================================== conn.close set conn=nothing %> </body> </html>     function.asp  <% '************************************************** '函数名:gotTopic '作  用:截字符串,汉字一个算两个字符,英文算一个字符 '参  数:str   ----原字符串 '       strlen ----截取长度 '返回值:截取后的字符串 '************************************************** function gotTopic(str,strlen)  if str="" then   gotTopic=""   exit function  end if  dim l,t,c, i  str=replace(replace(replace(replace(str," "," "),""",chr(34)),">",">"),"<","<")  str=replace(str,"?","")  l=len(str)  t=0  for i=1 to l   c=Abs(Asc(Mid(str,i,1)))   if c>255 then    t=t+2   else    t=t+1   end if   if t>=strlen then    gotTopic=left(str,i) & "…"    exit for   else    gotTopic=str   end if  next  gotTopic=replace(replace(replace(replace(gotTopic," "," "),chr(34),"""),">",">"),"<","<") end function '========================================================= '函数:RemoveHTML(strHTML) '功能:去除HTML标记 '参数:strHTML  --要去除HTML标记的字符串 '========================================================= Function RemoveHTML(strHTML) Dim objRegExp, Match, Matches Set objRegExp = New Regexp objRegExp.IgnoreCase = True objRegExp.Global = True '取闭合的<> objRegExp.Pattern = "<.+?>" '进行匹配 Set Matches = objRegExp.Execute(strHTML) ' 遍历匹配集合,并替换掉匹配的项目 For Each Match in Matches strHtml=Replace(strHTML,Match.Value,"") Next RemoveHTML=strHTML Set objRegExp = Nothing set Matches=nothing End Function %>     conn.asp  <% 'on error resume next set conn=server.CreateObject("adodb.connection") con= "driver={Microsoft Access Driver (*.mdb)};dbq=" & Server.MapPath("stest.mdb") conn.open con sub connclose    conn.close    set conn=nothing   end sub %>     附:抓取信息的详细页面事例

[b]总序列号:[/b]

479280  
信息类别:
出租
所在城市:
济南
房屋具体位置:
华龙路华信路交界口
房屋类型:
其他
楼层:
六层
使用面积:
24~240 平方米之间
房价:
0  [租赁:元/月,买卖:万元/套]
其他说明:
华信商务楼3至6层小空间对外出租(0.5元/平起),本楼属纯商务办公投资使用,可用于办公写字间,周边设施齐全、交通便利(37、80、K95在本楼前经过),全产权、市证,楼内设施包括水、电、暖、电梯设施齐全,有意者可电讯!
联系人:
鲁、王
联系方式:
88017966、86812217
信息来源:
2005-8-4 8:28:55  来自:218.98.86.175
点击次数:
19

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