vba - 从网站提取数据到excel错误

Question

我在设置从网站到 Excel 的数据提取时遇到了困难。
我想提取产品的确切价格以脱颖而出。
到目前为止，我有这个代码:

Sub GetData()

    Dim objIE As InternetExplorer  'Microsoft Internet Controls library added
    Dim itemEle As Object
    Dim data As String
    Dim y As Integer

    Set objIE = New InternetExplorer
    objIE.Visible = True

    objIE.navigate "https://www.nay.sk/samsung-ue55nu7172"
    Do While objIE.Busy = True Or objIE.readyState <> 4: DoEvents: Loop

    y = 1

    For Each itemEle In objIE.document.getElementsByClassName("price")
    data = itemEle.getElementsByClassName("price")(0).innerText
        y = y + 1
    Next
    data = Range("A1").Value
End Sub

你有什么建议？

Answer 1

你想要每一个价格吗？

例如，您可以通过以下方式列出前两个:

Option Explicit
Public Sub GetInfo()
    Dim sResponse As String, i As Long, html As New HTMLDocument
    With CreateObject("MSXML2.XMLHTTP")
        .Open "GET", "https://www.nay.sk/samsung-ue55nu7172", False
        .send
        sResponse = StrConv(.responseBody, vbUnicode)
    End With
    sResponse = Mid$(sResponse, InStr(1, sResponse, "<!DOCTYPE "))
    Dim titles As Object, prices As Object
    With html
        .body.innerHTML = sResponse
        Set titles = .querySelectorAll(".title")
        Set prices = .querySelectorAll(".price")
    End With
    For i = 0 To 1
        Debug.Print titles(i).innerText & prices(i).innerText
    Next i
End Sub

该循环返回您这些:



实际上，页面上的所有元素都带有 price类存储在对象 prices .

您可以通过循环该对象/节点列表的长度来查看所有价格:

For i = 0 To prices.Length - 1
    Debug.Print Prices.item(i).innerText
Next i

同样，您可以循环 .Length的 titles但请注意，它与 prices 的长度不同.页面上有更多价格(或者更确切地说，具有 price 类的元素与具有 title 类的元素相比。

引用资料(VBE>工具>引用资料):

HTML 对象库