Question

如何使用powershell脚本

更改“设置”名称属性的值

XML

**

<ServiceConfiguration serviceName="test" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceConfiguration">
  <Role name="Role1">
    <Instances count="1" />
    <ConfigurationSettings>
      <Setting name="enableCounter" value="true" />
    </ConfigurationSettings>
  </Role>
  <Role name="Role2">
    <Instances count="1" />
    <ConfigurationSettings>
      <Setting name="enableCounter" value="true" />
    </ConfigurationSettings>
  </Role>
</ServiceConfiguration >

**

我有一个这样的剧本，它不能正常工作

$serviceconfigpath= "D:\ServiceConfiguration.cscfg"
$doc = new-object System.Xml.XmlDocument
$doc.Load($serviceconfigpath)

$testValue= "test"

foreach($n in $doc.selectnodes("/ServiceConfiguration/Role"))
{
    foreach($n in $doc.selectnode("/ServiceConfiguration/Role/ConfigurationSettings/Setting"))
    {
        switch($n.name)
        {
            "enableCounter" { $n.value = $testValue}
        }
    }
}

$doc.Save($serviceconfigpath)

Answer 1

您需要修复XML并使用XmlNamespaceManager来访问文档：

$nsMgr = new-object xml.XmlNamespaceManager($doc.NameTable)
$doc.selectnodes("/ServiceConfiguration/Role/ConfigurationSettings/Setting", $nsMgr)

Answer 2

这是一个如何做你想做的事情的例子。你可以写ii更短，我详细解释了一切，只是为了解释。

$testValue= "test"

# Read the XML file
$file = Get-Content "c:\temp\FileBefore.xml"

# See it as an XMLDocument
$xml = [xml] $file

foreach ($role in $xml.ServiceConfiguration.role)
{
  # name before
  $role.ConfigurationSettings.Setting.name
  # modification
  $role.ConfigurationSettings.Setting.name = $testValue
  # name after
  $role.ConfigurationSettings.Setting.name  
}

# Save it back to a file
$xml.Save("c:\temp\FileAfter.xml")

JP

如何使用powershell脚本更改“设置”名称属性的值

2 个答案: