VBA 中的 GetElementById

Question

我在使用网上找到的代码将数据从 Excel 输入到 Web 浏览器时遇到问题，并根据我的需要对其进行了自定义。 他向我报告错误号 424，我不知道如何解决。 在自动数据输入过程中，该站点是否可能出现阻塞？ 这是来自网站的代码（检查）： 输入 id="input_form1:j_idt26" name="input_form1:j_idt26" type="text" class="form-control searchbox"

Sub SearchBot()
    
    Dim objIE As InternetExplorer 'special object variable representing the IE browser
    Dim aEle As HTMLLinkElement 'special object variable for an <a> (link) element
    Dim y As Integer 'integer variable we'll use as a counter
    Dim result As String 'string variable that will hold our result link
 
    'initiating a new instance of Internet Explorer and asigning it to objIE
    Set objIE = New InternetExplorer
 
    'make IE browser visible (False would allow IE to run in the background)
    objIE.Visible = True
 
    'navigate IE to this web page (a pretty neat search engine really)
    objIE.navigate "https://nbs.rs/sr_RS/drugi-nivo-navigacije/servisi/registar-menica/"
 
    'wait here a few seconds while the browser is busy
    Do While objIE.Busy = True Or objIE.readyState <> 4: DoEvents: Loop
 
    'in the search box put cell "A2" value, the word "in" and cell "C1" value
    objIE.document.getElementById("input_form1:j_idt26").Value = _
      Sheets("Sheet1").Range("A2").Value
    objIE.document.getElementById("input_form1:j_idt21").Value = _
      Sheets("Sheet1").Range("A3").Value

Answer 1

您要查找的元素隐藏在 iframe 中，因此有点棘手，但这应该可以：

Sub SearchBot()
    
    Dim objIE As InternetExplorer 'special object variable representing the IE browser
    Dim aEle As HTMLLinkElement 'special object variable for an <a> (link) element
    Dim y As Integer 'integer variable we'll use as a counter
    Dim result As String 'string variable that will hold our result link
 
    'initiating a new instance of Internet Explorer and asigning it to objIE
    Set objIE = New InternetExplorer
 
    'make IE browser visible (False would allow IE to run in the background)
    objIE.Visible = True
 
    'navigate IE to this web page (a pretty neat search engine really)
    objIE.navigate "https://nbs.rs/sr_RS/drugi-nivo-navigacije/servisi/registar-menica"
        
    'wait here a few seconds while the browser is busy
    Do While objIE.Busy = True Or objIE.readyState <> 4: DoEvents: Loop
 
    Dim ieDoc As MSHTML.HTMLDocument
    Set ieDoc = objIE.Document
    
    Dim iframeDoc As MSHTML.HTMLDocument
    Set iframeDoc = ieDoc.frames(0).Document
    
    'in the search box put cell "A2" value, the word "in" and cell "C1" value
    iframeDoc.getElementById("input_form1:j_idt26").Value = _
      Sheets("Sheet1").Range("A2").Value
    iframeDoc.getElementById("input_form1:j_idt21").Value = _
      Sheets("Sheet1").Range("A3").Value
End Sub