如何使用VBA到Excel读取XML属性？

Question

这是我的代码..

   <?xml version="1.0" ?> 
   <DTS:Executable xmlns:DTS="www.microsoft.com/abc" DTS:ExecutableType="xyz">
       <DTS:Property DTS:Name="PackageFormatVersion">3</DTS:Property> 
       <DTS:Property DTS:Name="VersionComments" /> 
       <DTS:Property DTS:Name="CreatorName">FirstUser</DTS:Property> 
       <DTS:Property DTS:Name="CreatorComputerName">MySystem</DTS:Property>
   </DTS:Executable>

在此我能够使用＆＃34; abc.baseName＆＃34;读取元素。及其值使用＆＃34; abc.Text＆＃34;。 它给我的结果是

财产3 物业
物业FirstUser

在此我怎样才能阅读＆＃34; PackageFormatVersion＆＃34; 3？也就是说，我知道有些价值是3，但这个价值是什么，我怎么知道？

我的意思是我必须选择我想要阅读的属性。

Answer 1

请参阅元素的.Text属性或.nodeTypeValue属性：

Sub TestXML()
Dim xmlDoc As Object 'Or enable reference to Microsoft XML 6.0 and use: MSXML2.DOMDocument
Dim elements As Object
Dim el As Variant
Dim xml$
xml = "<?xml version=""1.0"" ?>"
xml = xml & "<DTS:Executable xmlns:DTS=""www.microsoft.com/abc"" DTS:ExecutableType=""xyz"">"
xml = xml & "<DTS:Property DTS:Name=""PackageFormatVersion"">3</DTS:Property>"
xml = xml & "<DTS:Property DTS:Name=""VersionComments"" />"
xml = xml & "<DTS:Property DTS:Name=""CreatorName"">FirstUser</DTS:Property>"
xml = xml & "<DTS:Property DTS:Name=""CreatorComputerName"">MySystem</DTS:Property>"
xml = xml & "</DTS:Executable>"

Set xmlDoc = CreateObject("MSXML2.DOMDocument")
'## Use the LoadXML method to load a known XML string
xmlDoc.LoadXML xml
'## OR use the Load method to load xml string from a file location:
'xmlDoc.Load "C:\my_xml_filename.xml"

'## Get the elements matching the tag:
Set elements = xmlDoc.getElementsByTagName("DTS:Property")
'## Iterate over the elements and print their Text property
For Each el In elements
    Debug.Print el.Text
    '## Alternatively:
    'Debug.Print el.nodeTypeValue
Next

End Sub

我知道有些值是3，但是这个值是什么我知道怎么做？

您可以在“本地”窗口中查看对象，并检查其属性：

这是一个替代方案，对我来说比使用GetElementsByTagName更笨，但如果你需要遍历文档，你可以使用这样的东西：

Sub TestXML2()
Dim xmlDoc As MSXML2.DOMDocument
Dim xmlNodes As MSXML2.IXMLDOMNodeList
Dim xNode As MSXML2.IXMLDOMNode
Dim cNode As MSXML2.IXMLDOMNode
Dim el As Variant
Dim xml$
xml = "<?xml version=""1.0"" ?>"
xml = xml & "<DTS:Executable xmlns:DTS=""www.microsoft.com/abc"" DTS:ExecutableType=""xyz"">"
xml = xml & "<DTS:Property DTS:Name=""PackageFormatVersion"">3</DTS:Property>"
xml = xml & "<DTS:Property DTS:Name=""VersionComments"" />"
xml = xml & "<DTS:Property DTS:Name=""CreatorName"">FirstUser</DTS:Property>"
xml = xml & "<DTS:Property DTS:Name=""CreatorComputerName"">MySystem</DTS:Property>"
xml = xml & "</DTS:Executable>"

Set xmlDoc = CreateObject("MSXML2.DOMDocument")
'## Use the LoadXML method to load a known XML string
xmlDoc.LoadXML xml
'## OR use the Load method to load xml string from a file location:
'xmlDoc.Load "C:\my_xml_filename.xml"

'## Get the elements matching the tag:
Set xmlNodes = xmlDoc.ChildNodes
'## Iterate over the elements and print their Text property
For Each xNode In xmlDoc.ChildNodes
    If xNode.NodeType = 1 Then  ' only look at type=NODE_ELEMENT
        For Each cNode In xNode.ChildNodes
            Debug.Print cNode.nodeTypedValue
            Debug.Print cNode.Text
        Next
    End If
Next

End Sub

Answer 2

Sub TestXML()
Set Reference to Microsoft XML 6.0
Dim Init As Integer
Dim xmlDoc As MSXML2.DOMDocument
Dim elements As Object
Dim el As Variant
Dim Prop As String
Dim NumberOfElements As Integer
Dim n As IXMLDOMNode
Init = 5

Set xmlDoc = CreateObject("MSXML2.DOMDocument")

xmlDoc.Load ("C:\Users\Saashu\Testing.xml")

Set elements = xmlDoc.getElementsByTagName("DTS:Property")

Prop = xmlDoc.SelectSingleNode("//DTS:Property").Attributes.getNamedItem("DTS:Name").Text

NumberOfElements = xmlDoc.getElementsByTagName("DTS:Property").Length

For Each n In xmlDoc.SelectNodes("//DTS:Property")
   Prop = n.Attributes.getNamedItem("DTS:Name").Text
   Prop = Prop & " :: " & n.Text
   ActiveSheet.Cells(Init, 9).Value = Prop
   Init = Init + 1
Next
End Sub

此代码仍需要改进，因为我的要求是只显示其中一些属性，如CreatorName和CreatorComputerName，而不是全部。

感谢大卫帮助我解决这个问题。