ASP下載網(wǎng)頁內(nèi)的圖片實(shí)例分享

作者：來源：發(fā)布時(shí)間：2011-6-8 11:38:07 點(diǎn)擊：

本文是關(guān)于ASP下載網(wǎng)頁內(nèi)的圖片的實(shí)例分享，希望對(duì)能給大家?guī)韼椭蛦l(fā)。

<%
Function ReplaceRemoteUrl(sHTML, sSaveFilePath, sFileExt)
'//
'//遠(yuǎn)程保存圖片
'/////////////////////////////////////////////////////
'作用：替換字符串中的遠(yuǎn)程文件為本地文件并保存遠(yuǎn)程文件
'參數(shù)：
'     sHTML        : 要替換的字符串
'     sSavePath    : 保存文件的路徑
'     sExt         : 執(zhí)行替換的擴(kuò)展名
    Dim s_Content
    s_Content = sHTML
'If IsObjInstalled("Microsoft.XMLHTTP") = False then
'ReplaceRemoteUrl = s_Content
' Exit Function
   ' End If
'遠(yuǎn)程圖片保存目錄,結(jié)尾請(qǐng)不要加“/”
SaveFilePath="/upload"
'遠(yuǎn)程圖片保存類型
FileExt="jpg|gif|bmp|png"
   Dim re, RemoteFile, RemoteFileurl,SaveFileName,SaveFileType,arrSaveFileNameS,arrSaveFileName,sSaveFilePaths
    Set re = new RegExp
    re.IgnoreCase = True
    re.Global = True
    re.Pattern = "((http|https|ftp|rtsp|mms):(\/\/|\\\\){1}((\w)+[.]){1,}(net|com|cn|org|cc|tv|[0-9]{1,3})(\S*\/)((\S)+[.]{1}(" & sFileExt & ")))"
    's_Content="http://union.3721.com/v2/images/sicon.gif sfsdf"
    response.write s_Content
    Set RemoteFile = re.Execute(s_Content)
    For Each RemoteFileurl in RemoteFile
        SaveFileType = Replace(Replace(RemoteFileurl,"/", "a"), ":", "a")
        'arrSaveFileName = Right(SaveFileType,12)
arrSaveFileName = Mid(RemoteFileurl,InStrRev(RemoteFileurl, "/")+1)
sSaveFilePaths=sSaveFilePath & "/"
        SaveFileName = sSaveFilePaths & arrSaveFileName
        Call SaveRemoteFile(SaveFileName, RemoteFileurl)
        s_Content = Replace(s_Content,RemoteFileurl,SaveFileName)
    Next
    ReplaceRemoteUrl = s_Content
End Function

Sub SaveRemoteFile(LocalFileName,RemoteFileUrl)
    Dim Ads, Retrieval, GetRemoteData
    On Error Resume Next
    Set Retrieval = Server.CreateObject("Microsoft.XMLHTTP")
    With Retrieval
        .Open "Get", RemoteFileUrl, False, "", ""
        .Send
        GetRemoteData = .ResponseBody
    End With
    Set Retrieval = Nothing
    Set Ads = Server.CreateObject("Adodb.Stream")
    With Ads
        .Type = 1
        .Open
        .Write GetRemoteData
        .SaveToFile Server.MapPath(LocalFileName), 2
        .Cancel()
        .Close()
    End With
    Set Ads=nothing
End Sub

Server.ScriptTimeOut=6000 '頁面超時(shí)時(shí)間
url="http://www.webjx.com/htmldata/2006-02-20/1140402873.html"'接收的網(wǎng)址
code=replace(getHTTPPage(url),vbcrlf,"")'替換掉代碼中的回車符

start=Instr(code,"<html>")'開始的代碼這里取網(wǎng)頁中有唯一性質(zhì)的代碼開始
over=Instr(code,"</html>")'結(jié)束的代碼這里取網(wǎng)頁中有唯一性質(zhì)的代碼結(jié)束
types=mid(code,start,over-start) 'types 變量就是你需要的部分
'//這里應(yīng)該繼續(xù)對(duì)取得后的代碼做休整以便符合自己需要
'//我才取的是從<html>到</html> 所以是讀整個(gè)頁面實(shí)際上根據(jù)自己需要查看人家的代碼對(duì)照下
'//實(shí)際上還需要一些其他的函數(shù) 比如整理HTML標(biāo)志符的函數(shù), 自動(dòng)接收遠(yuǎn)程圖片的函數(shù)
'//還有就是頁面的自動(dòng)跳轉(zhuǎn)等 == 這個(gè)就看自己的擴(kuò)展了
types=ReplaceRemoteUrl(types,SaveFilePath,FileExt)//下載遠(yuǎn)程圖片
response.write types ' 測(cè)試輸出
'下邊的函數(shù)不用管, 包括打開,讀取,網(wǎng)頁
Function getHTTPPage(Path)
        t = GetBody(Path)
        getHTTPPage=BytesToBstr(t,"GB2312")
End function
Function GetBody(url)
        on error resume next
        Set Retrieval = CreateObject("Microsoft.XMLHTTP")
        With Retrieval
        .Open "Get", url, False, "", ""