SaveRemoteFile函數之asp實現儲存遠端檔案到本地的代碼_應用技巧

來源:互聯網
上載者:User
'==================================================
'過程名:SaveRemoteFile
'作  用:儲存遠端檔案到本地
'參  數:LocalFileName ------ 本地檔案名稱
'參  數:RemoteFileUrl ------ 遠程檔案URL
'==================================================
Function SaveRemoteFile(LocalFileName,RemoteFileUrl)
    SaveRemoteFile=True
    dim Ads,Retrieval,GetRemoteData    
    On Error Resume Next
    Set Retrieval = Server.CreateObject("Microsoft.XMLHTTP")
    With Retrieval
        .Open "Get", RemoteFileUrl, False, "", ""
        .Send
        If .Readystate<>4 or .Status > 300 then
            SaveRemoteFile=False
            Exit Function
        End If
        GetRemoteData = .ResponseBody
    End With
    Set Retrieval = Nothing
    'If LenB(GetRemoteData) < 100 Then Exit Function
    'If MaxFileSize > 0 Then
            'If LenB(GetRemoteData) > 5000 Then Exit Function
            Response.Write(Round(LenB(GetRemoteData)/1024)) & "KB"
    'End If
    Set Ads = Server.CreateObject("Adodb.Stream")
    With Ads
        .Type = 1
        .Open
        .Write GetRemoteData
        .SaveToFile server.MapPath(LocalFileName),2
        .Cancel()
        .Close()
    End With
    If Err.number<>0 then
      SaveRemoteFile=False
      Exit Function
         Err.Clear
       End If
    Set Ads=nothing

end Function

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