excel - 使用 getElementsByTagName() 进行网页抓取

Question

我想将餐厅名称、电话号码、网站和地址等餐厅数据导入 Excel，但不幸的是我收到了广告和垃圾数据。我已经使用http://automatetheweb.net/vba-getelementsbytagname-method/网站创建了一个代码，但它没有帮助。请纠正我的代码中的问题。网站：https
: //www.yellowpages.com/atlanta-ga/attorneys 请不要引用 json，因为它不适用于其他网站。

Sub Yellowcom()
    'Dim ieObj As InternetExplorer
    Dim htmlELe As IHTMLElement
    Dim HTML As HTMLDocument
    Dim i As Integer

    Dim URL As String
    Dim URLParameter As String
    Dim page As Long
    Dim links As Object
    Dim IE As Object


    i = 1

    Set IE = CreateObject("InternetExplorer.Application")
    'Set ieObj = New InternetExplorer
    IE.Visible = True
    URL = "https://www.yellowpages.com/atlanta-ga/attorneys"
    'Application.Wait Now + TimeValue("00:00:05")

    For page = 2 To 4

        If page > 1 Then URLParameter = "?page=" & page

        IE.navigate URL & URLParameter

        ' Wait for the browser to load the page
        Do Until IE.readyState = 4

            DoEvents

        Loop

        Set HTML = IE.document
        Set links = HTML.getElementsByClassName("info")

    For Each htmlELe In links

        With ActiveSheet
            .Range("A" & i).Value = htmlELe.Children(0).textContent
            .Range("B" & i).Value = htmlELe.getElementsByTagName("a")(0).href
            .Range("C" & i).Value = htmlELe.Children(2).textContent
            .Range("D" & i).Value = htmlELe.Children(2).querySelector("a[href]")
             'links2 = htmlELe.getElementsByClassName("links")(1)
           ' .Range("D" & i).Value = links2.href


        End With
    i = i + 1

    Next htmlELe

    Next page

    IE.Quit
    Set IE = Nothing

    End Sub

所需的输出应该是这样的

标签： excelvbaweb-scrapinggetelementsbyclassname

Answer 1

我会使用 xhr 而不是浏览器，并将每个页面的数据存储在一个数组中，然后将其写入工作表。您真的可以根据每页结果和页数预先确定一个数组以保存所有结果，但以下仍然有效

Option Explicit
Public Sub GetListings()
    Dim html As HTMLDocument, page As Long, html2 As HTMLDocument
    Dim results As Object, headers(), ws As Worksheet, i As Long

    Const START_PAGE As Long = 1
    Const END_PAGE As Long = 2

    Set ws = ThisWorkbook.Worksheets("Sheet1")
    headers = Array("Name", "Phone", "Website", "Address")
    Application.ScreenUpdating = False
    Set html = New HTMLDocument
    Set html2 = New HTMLDocument
    ws.Cells(1, 1).Resize(1, UBound(headers) + 1) = headers

    With CreateObject("MSXML2.XMLHTTP")
        For page = START_PAGE To END_PAGE
            .Open "GET", "https://www.yellowpages.com/atlanta-ga/attorneys?page=" & page, False
            .send
            html.body.innerHTML = .responseText
            Set results = html.querySelectorAll(".organic .result")
            Dim output(), r As Long
            ReDim output(1 To results.Length, 1 To 4)
            r = 1
            For i = 0 To results.Length - 1
                On Error Resume Next
                html2.body.innerHTML = results.item(i).outerHTML
                output(r, 1) = html2.querySelector(".business-name").innerText
                output(r, 2) = html2.querySelector(".phone").innerText
                output(r, 3) = html2.querySelector(".track-visit-website").href
                output(r, 4) = html2.querySelector(".street-address").innerText & " " & html2.querySelector(".locality").innerText
                On Error GoTo 0
                r = r + 1
            Next
            ws.Cells(GetLastRow(ws, 1) + 1, 1).Resize(UBound(output, 1), UBound(output, 2)) = output
        Next
    End With
    Application.ScreenUpdating = True
End Sub
Public Function GetLastRow(ByVal ws As Worksheet, Optional ByVal columnNumber As Long = 1) As Long
    With ws
        GetLastRow = .Cells(.rows.Count, columnNumber).End(xlUp).Row
    End With
End Function

---

输出样本：