如何获取xml属性值？

Question

假设我有一些 xml。如何使用VB获取属性值？

Answer 1

假设您正在使用 MSXML 库？

以下代码将输出子节点的所有属性值。本例中的 XML 是：-

<?xml version="1.0" encoding="utf-8"?>
<documents>
  <document id="12345" created="2002-09-24" owner="Andy" />
</documents>

因此输出将显示 id、created 和owner 的值。

这是代码：-

    Dim XML As String
    Dim objXML As New MSXML2.DOMDocument
    Dim objElem As MSXML2.IXMLDOMElement
    Dim objSub As MSXML2.IXMLDOMElement

    XML = "<?xml version=""1.0"" encoding=""utf-8""?><documents><document id=""12345"" created=""2002-09-24"" owner=""Andy"" /></documents>"

    If Not objXML.LoadXML(XML) Then
        Err.Raise objXML.parseError.ErrorCode, , objXML.parseError.reason
    End If

    Set objElem = objXML.selectSingleNode("//documents")

    For Each objSub In objElem.childNodes
        Debug.Print objSub.nodeName

        If objSub.Attributes.length > 0 Then

        For i = 0 To objSub.Attributes.length - 1

            Debug.Print objSub.Attributes(i).nodeName & " - " & objSub.Attributes(i).nodeValue

        Next i

        End If

    Next