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实例讲解asp实现抓取网上房产信息

来源：中文源码网    浏览：150 次    日期：2024-05-16 09:41:13
【下载文档:  实例讲解asp实现抓取网上房产信息.txt 】

实例讲解ASP实现抓取网上房产信息
<%@LANGUAGE="VBSCRIPT" CODEPAGE="936"%> Untitled Document <% 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="http://www.***.com"'新闻网址knowsky.com getcont=ReadXml(url,"gb2312","") 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)&"__
") tempLink=mid(getcont(i),instr(getcont(i),"href=""")+6,instr(getcont(i),""" onClick")-10) tempLink=replace(tempLink,"../","") response.Write(i&":"&tempLink&"
") NewsContent=ReadXml(tempLink,"gb2312","","") TempStr=replace(TempStr,"","") TempStr=replace(TempStr,"","") 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 ="" 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 %> 　　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 %>

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","
") 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&"
") response.Write("信息类别:"&NewsClass&"
") response.Write("所在城市:"&City&"
") response.Write("房屋具体位置:"&Position&"
") response.Write("房屋类型:"&HouseType&"
") response.Write("楼层:"&Level&"
") response.Write("使用面积:"&Area&"
") response.Write("房价:"&Price&"
") response.Write("其他说明:"&Demostra&"
") response.Write("联系人:"&ContactMan&"
") response.Write("联系方式:"&Contact&"
") '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 '添加到数据库 '==================================================== 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,"		","") TempStr=replace(TempStr,"