Question

我有一个大型XML文件，我试图使用DOM进行解析。我尝试做的只是从节点中提取信息，如果它的父节点包含特定的＆＃34; id＆＃34;属性。

例如，如果我只想为包含＆＃34; id = Adventure＆＃34;的书籍拉出TITLE或AUTHOR。 - 我怎么用DOM做呢？

<?xml version="1.0"?>
<catalog>
<book id="Adventure">
   <author>Gambardella, Matthew</author>
   <title>XML Developer's Guide</title>
   <price>44.95</price>
</book>
<book id="Adventure">
   <author>Ralls, Kim</author>
   <title>Midnight Rain</title>
   <price>5.95</price>
</book>
<book id="Adventure">
   <author>Boal, John</author>
   <title>Mist</title>
   <price>15.95</price>
</book>
<book id="Mystery">
   <author>Ralls, Kim</author>
   <title>Some Mystery Book</title>
   <price>9.95</price>
</book>
</catalog>

现在使用此代码：

Sub mySub()

Dim mainWorkBook As Workbook
Dim XCMFILE As Variant
Dim BookType As String
Dim BookTitle As Variant
Dim Title As String
Dim n As IXMLDOMNode
Dim i As Integer

Set mainWorkBook = ActiveWorkbook
Set XCMFILE = CreateObject("Microsoft.XMLDOM")

XCMFILE.Load (XCMFileName) 'Load XCM File


i = 0

For Each n In XCMFILE.SelectNodes("/catalog/book")
    BookType= n.Attributes.getNamedItem("id").Text 'Search for id attribute within node
    If BookID = "Adventure" Then
        Set BookTitle = = XCMFILE.SelectNodes("/catalog/book/title/text()")
        Title = BookTitle(i).NodeValue
        mainWorkBook.Sheets("Sheet1").Range("B" & i + 3).Value = BookTitle'Prints values into B column
        i = i + 1
    EndIf

Next
End Sub

我不知道如何正确增加以仅提取符合我的规范/类别的节点。

感谢您的任何提示和指示 - 我很感激。

Answer 1

你不需要增加任何东西。只需编写一个XPath查询，只选择您感兴趣的节点：

For Each n In XCMFILE.SelectNodes("/catalog/book[@id=""Adventure""]")
    ' n is a book node with the "id" attribute value "Adventure"
Next

VBA DOM查找具有属性的特定节点

1 个答案: