从互联网上的路径获取文件列表

Question

我正在自动化一个项目，每个月我都需要访问网站并从那里复制文件。 我能够复制文件，问题是它们的名字如下所示，所以我无法知道那个月要复制哪个文件。

filename2015011023549.zip

filename2015021922876.zip

有没有办法从网站获取文件列表？

Answer 1

您将包含文件列表的页面（请参阅内嵌注释）下载到本地文件，然后解析该文件以寻找可能的文件名候选者：

Option Compare Database
Option Explicit

Private Declare Function URLDownloadToFile Lib "urlmon" Alias "URLDownloadToFileA" ( _
    ByVal pCaller As Long, _
    ByVal szURL As String, _
    ByVal szFileName As String, _
    ByVal dwReserved As Long, _
    ByVal lpfnCB As Long) _
    As Long

Public Function DownloadFile( _
    ByVal strURL As String, _
    ByVal strLocalFilename As String) _
    As Long

' Download file or page with public access from the web.
' 2004-12-17. Cactus Data ApS, CPH.

' Usage, download a file:
' lngRet = DownloadFile("http://www.databaseadvisors.com/Graphics/conf2002/2002ConferencePicsbySmolin/images/dba02smolin27.jpg", "c:\happybassett.jpg")
'
' Usage, download a page:
' lngRet = DownloadFile("http://www.databaseadvisors.com/conf2002/conf200202.asp", "c:\dbaconference.htm")

' Returns 0 if success, error code if not.
' Error codes:
' -2146697210 "file not found".
' -2146697211 "domain not found".

' Limitation.
' Does not check if local file was created successfully.

    Dim lngRetVal As Long

    lngRetVal = URLDownloadToFile(0, strURL & vbNullChar, strLocalFilename & vbNullChar, 0, 0)

    DownloadFile = lngRetVal

End Function