无法使用 powershell 提取 XML 节点的值
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/10854009/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Can't extract value of XML nodes with powershell
提问by Micah
I'm trying to extract some info from an xml file and update/create an app pool as needed. Here's the xml I'm reading in:
我正在尝试从 xml 文件中提取一些信息并根据需要更新/创建应用程序池。这是我正在阅读的 xml：
<?xml version="1.0" encoding="utf-8"?>
<appPool name="MyAppPool">
<enable32BitAppOnWin64>true</enable32BitAppOnWin64>
<managedPipelineMode>Integrated</managedPipelineMode>
<managedRuntimeVersion>v4.0</managedRuntimeVersion>
<autoStart>true</autoStart>
</appPool>
Here's what I'm trying to do with it:
这是我想要做的事情：
#read in the xml
$appPoolXml = [xml](Get-Content $file)
#get the name of the app pool
$name = $appPoolXml.appPool.name
#iterate over the nodes and update the app pool
$appPoolXml.appPool.ChildNodes | % {
#this is where the problem exists
set-itemproperty IIS:\AppPools$name -name $_.Name -value $_.Value
}
$_.Namereturns the name of the node, (i.e. enable32BitAppOnWin64) which is correct, but the .Valueproperty doesn't return anything. How do I extract the data I want?
$_.Name返回节点的名称（即enable32BitAppOnWin64），这是正确的，但该.Value属性不返回任何内容。如何提取我想要的数据？
回答by Trevor Sullivan
Corrected answer:
更正的答案：
You want $_.'#text'instead of $_.Value.
你想要$_.'#text'而不是$_.Value.
Consider this also, which uses the InnerTextproperty on the System.Xml.XmlElementobjects:
还要考虑这一点，它使用对象InnerText上的属性System.Xml.XmlElement：
$xml.appPool.ChildNodes | % { $.Name; $.InnerText };
$xml.appPool.ChildNodes | % { $ .Name; $.InnerText };
