如何使用 Powershell 从 XML 文件中删除特定标签？

Question

下面的 xml 片段我只想从中删除 "ConnectionString" 标签 <appSettings> 父标签：

     <configuration>  
        <appSettings>
            <add key="ConnectionString" value=" Data Source=192.168.1.19;Network Library=DBMSSOCN;Initial Catalog=Demo;Persist Security Info=True; User ID=sa;Password=powershell;Application Name=web;Connect Timeout=200; pooling='true'; Max Pool Size=200;"/>
            <add key="ConnectionString1" value=" Data Source=192.168.1.19;Network Library=DBMSSOCN;Initial Catalog=Demo;Persist Security Info=True; User ID=sa;Password=powershell;Application Name=web;Connect Timeout=200; pooling='true'; Max Pool Size=200;"/>
            <add key="ConnectionString2" value=" Data Source=192.168.1.19;Network Library=DBMSSOCN;Initial Catalog=Demo;Persist Security Info=True; User ID=sa;Password=powershell;Application Name=web;Connect Timeout=200; pooling='true'; Max Pool Size=200;"/>
          </appSettings>
    </configuration>

请告诉我如何使用 powershell 执行此操作？

Answer 1

试试这个：

# Set file path
$File = '.\config.xml'

# Get file contents as XML
[xml]$xml = Get-Content $File

# Find node with key="ConnectionString"
$Remove = $xml.appSettings.configuration.appSettings.add |
                Where-Object {$_.Key -eq 'ConnectionString'}

# Remove this node from it's parent
$xml.appSettings.configuration.appSettings.RemoveChild($Remove) | Out-Null

# Save file
$xml.Save($File)

Answer 2

删除由节点的父节点完成。首先找到所需的节点，您将通过 ParentNode 属性获得其父节点。然后通过父节点，通过 RemoveChild() 删除子节点。像这样，

[xml]$doc = cat 'path/to/xml'
$nodeToRemove = $doc.SelectSingleNode("//add[@key='ConnectionString']")
$parent = $nodeToRemove.ParentNode
$parent.RemoveChild($nodeToRemove)
$doc.Save([console]::out)

如何使用 Powershell 从 XML 文件中删除特定标签？

How to remove particular tag from XML file using Powershell?

xml

iis

powershell

powershell-ise

powershell-cmdlet