Question

我想用VBA（Excel）解析一长串本地网页（.HTM文件）并将一些数据提取到excel中。该计划需要抓取超过9000个网页。这是一个例子：

> C:\Users\User_ID\Webpages\BS_1000.HTM.htm
C:\Users\User_ID\Webpages\BS_1001.HTM.htm
C:\Users\User_ID\Webpages\BS_1002.HTM.htm
C:\Users\User_ID\Webpages\BS_1003.HTM.htm
C:\Users\User_ID\Webpages\BS_1006.HTM.htm
C:\Users\User_ID\Webpages\BS_1007.HTM.htm
C:\Users\User_ID\Webpages\BS_1011.HTM.htm
C:\Users\User_ID\Webpages\BS_1012.HTM.htm
C:\Users\User_ID\Webpages\BS_1015.HTM.htm
C:\Users\User_ID\Webpages\BS_1016.HTM.htm
[... and the list goes on ...]

这是VBA：

<!-- language: lang-HTML -->
For startNumber = 1 To TotalProfiles
Dim ie As InternetExplorerMedium
Set ie = New InternetExplorerMedium
ie.Visible = True

Application.StatusBar = "Loading profile " & ProfileNumber & " from a total of " & TotalProfiles & " profiles"
Set currentProfile = Worksheets("List_of_Files").Range("B" & CurrentRowPosition)
ie.navigate currentProfile

Application.StatusBar = "Loading profile: " & ProfileNumber & "; file location: " & currentProfile
Do While ie.READYSTATE <> READYSTATE_COMPLET
DoEvents
Loop

Application.StatusBar = "Storing " & currentProfile & " information into HTMLElement"
Set html = ie.document
Set ie = Nothing
[some code here...]

问题是我当前的代码在新的IE窗口中打开每个页面（不关闭前一个）。有超过9000个网页需要抓取，这很快就会成为一个非常大的问题。

我在Microsoft Office 2013中使用Internet Explorer 11（在Windows 7 Enterprise SP1上）。

我想要的是IE应该在同一个标签页面中打开每个网页（在完成解析并加载下一页后，或者至少关闭窗口时，几乎只需刷新已经使用过的＃34;正在使用＆＃34;标签完成解析后，在＆＃34; new＆＃34;窗口中打开下一个网页。可悲的是，到目前为止，我还没有找到解决办法。任何帮助将不胜感激。

Answer 1

每次打开一个新窗口的原因是您在循环开始时使用此行Set ie = New InternetExplorerMedium

告诉它

有两种方法可以解决它。

在循环之前启动IE，然后在循环完成后退出IE：

像这样：

Dim ie As InternetExplorerMedium
Set ie = New InternetExplorerMedium
ie.Visible = True

For startNumber = 1 To TotalProfiles

     Application.StatusBar = "Loading profile: " & ProfileNumber & "; file location: " & currentProfile
     Do While ie.READYSTATE <> READYSTATE_COMPLET
          DoEvents
     Loop

     Set currentProfile = Worksheets("List_of_Files").Range("B" & CurrentRowPosition)
     ie.navigate currentProfile

     Application.StatusBar = "Storing " & currentProfile & " information into HTMLElement"

     Set html = ie.document

     [some code here...]

Next

Set html = Nothing
ie.Quit
Set ie = Nothing

每次在结束循环之前退出IE实例（可能没有第一种方式那么高效）

像这样：

For startNumber = 1 To TotalProfiles

     Dim ie As InternetExplorerMedium
     Set ie = New InternetExplorerMedium
     ie.Visible = True

     Application.StatusBar = "Loading profile " & ProfileNumber & " from a total of " & TotalProfiles & " profiles"
     Set currentProfile = Worksheets("List_of_Files").Range("B" & CurrentRowPosition)
     ie.navigate currentProfile

     Application.StatusBar = "Loading profile: " & ProfileNumber & "; file location: " & currentProfile
     Do While ie.READYSTATE <> READYSTATE_COMPLET
          DoEvents
     Loop

     Application.StatusBar = "Storing " & currentProfile & " information into HTMLElement"
     Set html = ie.document

     [some code here...]

     Set html = Nothing
     ie.Quit
     Set ie = Nothing

Next

VBA [EXCEL 2013]：自动化：在相同浏览器窗口/选项卡中打开链接

1 个答案: