Excel VBA：获取HTML表格td的内部文本 [英] Excel VBA: Get inner text of HTML table td

问题描述

我正在使用excel从网页获取值。除了其他元素，HTML包含下表：

I'm using excel to get values from a webpage. Among other elements, the HTML contains the following table:

<div id="myDiv">    
<table class="myTable">
        <tbody>
            <tr>
                <td>Text1:</td>
                <td class="data"><strong>0.51</strong></td>
            </tr>
            <tr>
                <td>Text2:</td>
                <td class="data"><strong>2199</strong></td>
            </tr>
        </tbody>
    </table>
</div>

页面存储在变量oHtml中。抓住桌子外面的其他元素是很好的。但是当我尝试捕获值0,51时，我在控制台中使用JS：

The page is stored in variable oHtml. It is working fine to grab other elements outside this table. But when I try to capture the value 0,51 for example, I use JS in the console:

document.getElementById("myDiv").getElementsByClassName("myTable")[0].getElementsByClassName("data")[0].innerText

选择值0,51。

但是，函数内使用的以下VBA代码返回#VALUE！

However, the following VBA code used inside a function is returning #VALUE!

Function myFunction(id)
Call myConnection(id)    
Set myDadta = oHtml.getElementById("myDiv").getElementsByClassName("myTable")(0).getElementsByClassName("data")(0)
        myFunction = myData.innerText
End Function

这是与IE的连接：

Public Sub myConnection(id)

Set oHtml = New HTMLDocument

With CreateObject("WINHTTP.WinHTTPRequest.5.1")
    .Open "GET", "http://www.example.com" & id, False
    .send
    oHtml.body.innerHTML = .responseText
End With

End Sub

正如我所说，这种语法与这个表中的其他元素工作正常，所以为什么我会收到这个错误？ >

As I said, this kind of syntax is working fine with other elements out of this table in this same page, so why am I getting this error?

推荐答案

你似乎在你的变量名中有一个错字。你有没有使用 Option Explicit ？

You seem to have a typo in your variable name. Have you used Option Explicit?

Function myFunction(id)
    Call myConnection(id)    
    Set myDadta = oHtml.getElementById("myDiv").getElementsByClassName("myTable")(0).getElementsByClassName("data")(0)
    myFunction = myData.innerText   ' <-- This line
End Function

更新

我把一个Button放在VBA表单上，并且修改了以下代码：

I put a Button on VBA form and the following corrected code that works:

Option Explicit

Dim oHtml, myData

Private Sub CommandButton1_Click()
    MsgBox myFunction(0)
End Sub

Function myFunction(id)
    Call myConnection(id)
    Set myData = oHtml.getElementById("myDiv").getElementsByTagName("Table")(0).getElementsByTagName("td")(1)
    myFunction = myData.innerText ' <-- will give 0.51
End Function

Public Sub myConnection(id)
    Set oHtml = New HTMLDocument
    With CreateObject("WINHTTP.WinHTTPRequest.5.1")
        '.Open "GET", "http://www.example.com" & id, False
        .Open "GET", "http://localhost/Test/Test.htm", False   '<-- this is my local machine; replace appropriately
        .send
        oHtml.body.innerHTML = .responseText
    End With
End Sub

更新的代码演示LIVE URL上的功能

Option Explicit

Dim oHtml, myData

Private Sub CommandButton1_Click()
    MsgBox myFunction(0)
End Sub

Function myFunction(id)
    Call myConnection(id)
    Set myData = oHtml.getElementById("overallRatios").getElementsByTagName("Table")(0).getElementsByTagName("td")(1)
    myFunction = myData.innerText  
End Function

Public Sub myConnection(id)
    Set oHtml = New HTMLDocument
    With CreateObject("WINHTTP.WinHTTPRequest.5.1")
        '.Open "GET", "http://www.example.com" & id, False
        .Open "GET", "http://www.reuters.com/finance/stocks/overview?symbol=PTI.LS", False
        .send
        oHtml.body.innerHTML = .responseText
    End With
End Sub

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