替换XML属性值

时间:2012-11-27 17:36:41

标签: xml vbscript nodes xmlnode

过去几天我一直在阅读有关处理XML文件的内容,并且正在努力解决问题。

看起来获取属性并更改值很简单,但我无法实现。

我有以下名为input.xml的XML文件:

<gs:GlobalizationService xmlns:gs="urn:longhornGlobalizationUnattend">
    <gs:UserList>
        <gs:User UserID="Current"/>
    </gs:UserList>
    <gs:InputPreferences>
        <gs:InputLanguageID Action="add" ID="0409:00000409" Default="true"/>
    </gs:InputPreferences>
</gs:GlobalizationServices>

我需要能够更改属性ID的值。似乎我应该能够使用selectSingleNode和setAttribute命令的组合来完成此任务,但我无法让它工作。

我一直在努力的片段如下。值根据用户选择在主脚本的其他位置定义。

Dim xmlDoc, xmlNode
Set xmlDoc = CreateObject("Microsoft.XMLDOM")
xmlDoc.Async = "False"
xmldoc.Load("input.xml")

Set xmlNode = xmlDoc.selectSingleNode("gs:GlobalizationServices/gs:InputPreferences/gs:InputLanguageID")
xmlNode.setAttribute "ID", Value
xmlDoc.save("input.xml")

2 个答案:

答案 0 :(得分:0)

您应该使用XPath选择器执行此操作,然后编译选择器。我认为您不需要使用任何第三方库。我认为JDK有你需要的东西。如果您使用谷歌就有例子。

答案 1 :(得分:0)

(1)使用具有基本错误检查的骨架,如

Dim oFS    : Set oFS  = CreateObject("Scripting.FileSystemObject")
Dim sFSpec : sFSpec   = oFS.GetAbsolutePathName("...")
Dim oXML   : Set oXML = CreateObject("Msxml2.DOMDocument")
oXML.setProperty "SelectionLanguage", "XPath"
' If namespace(s)
' oXML.setProperty "SelectionNamespaces", "...'"
oXML.async = False
oXML.load sFSpec
If 0 = oXML.parseError Then
   WScript.Echo oXML.xml
   WScript.Echo "-----------------"
   Dim sXPath : sXPath    = "..."
   Dim ndFnd  : Set ndFnd = oXML.selectSingleNode(sXPath)
   If ndFnd Is Nothing Then
      WScript.Echo sXPath, "not found"
   Else
      WScript.Echo ndFnd.nodeName, ndFnd.getAttribute("UserID")
      WScript.Echo "-----------------"
      ndFnd.setAttribute "UserID", "Changed"
      WScript.Echo oXML.xml
      oXML.save Replace(sFSpec, ".xml", "-o.xml")
   End If
Else
   WScript.Echo oXML.parseError.reason
End If

(2)填写文件规范后,您会发现XML格式不正确。

script 13589885.vbs
nd tag 'gs:GlobalizationServices' does not match the start tag 'gs:GlobalizationService'.

(3)由于XML包含(a)名称空间(s),因此需要

oXML.setProperty "SelectionNamespaces", "xmlns:gs='urn:longhornGlobalizationUnattend'"
...
Dim sXPath : sXPath    = "/gs:GlobalizationService/gs:UserList/gs:User"

(4)现在它并没有明显崩溃:

cscript 13589885.vbs
<gs:GlobalizationService xmlns:gs="urn:longhornGlobalizationUnattend">
        <gs:UserList>
                <gs:User UserID="Current"/>
        </gs:UserList>
        <gs:InputPreferences>
                <gs:InputLanguageID Action="add" ID="0409:00000409" Default="true"/>
        </gs:InputPreferences>
</gs:GlobalizationService>

-----------------
gs:User Current
-----------------
<gs:GlobalizationService xmlns:gs="urn:longhornGlobalizationUnattend">
        <gs:UserList>
                <gs:User UserID="Changed"/>
        </gs:UserList>
        <gs:InputPreferences>
                <gs:InputLanguageID Action="add" ID="0409:00000409" Default="true"/>
        </gs:InputPreferences>
</gs:GlobalizationService>

(5)反思为什么xmldoc.Load("input.xml")xmlDoc.save("input.xml")是坏的VBScript。