我在 Powershell、XML 和 XPath 上苦苦挣扎。
我想要一个脚本来读取文件,提取我需要的节点并转换为我可以在脚本中使用的对象。
该文件如下所示:
<?xml version="1.0"?>
<Objs xmlns="http://schemas.microsoft.com/powershell/2004/04" Version="1.1.0.1">
<Obj RefId="0">
<TN RefId="0">
<T>System.Object</T>
</TN>
<Props>
<Obj N="Set1" RefId="1">
<TN RefId="1">
<T>System.Object</T>
</TN>
<Props>
<S N="Folder">C:\t1</S>
<Obj N="Configs" RefId="10">
<TN RefId="10">
<T>System.Object</T>
</TN>
<Props>
<S N="N1">Geralt</S>
<S N="N2">Ciri</S>
</Props>
</Obj>
</Props>
</Obj>
<Obj N="Set2" RefId="2">
<TN RefId="2">
<T>System.Object</T>
</TN>
<Props>
<S N="Folder">C:\t2</S>
<Obj N="Configs" RefId="20">
<TN RefId="20">
<T>System.Object</T>
</TN>
<Props>
<S N="N1">Triss</S>
<S N="N2">Yen</S>
</Props>
</Obj>
</Props>
</Obj>
</Props>
</Obj>
</Objs>
我写了这段代码:
$path = "c:\file.xml"
$xpath = "/ns:Objs/ns:Obj/ns:Props/ns:Obj[@N='Set2']"
$ns = "@{ns='http://schemas.microsoft.com/powershell/2004/04'}"
[xml]$apps = Select-Xml -Path $path -XPath $xpath -Namespace $ns
我期待能够写:
写入主机“文件夹是:$apps.Folder”-> C:\t1 写入主机“配置是:$apps.Configs.N2”-> 日元
但由于此错误,我无法获取对象:
Cannot convert value "...". Error: "This document already has a 'DocumentElement' node."
At line:1 char:1
+ [xml]$t = Select-Xml -Path $path -XPath "/ns:Objs/ns:Obj/ns:Props/ns:Obj[@N='Set2']"
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : MetadataError: (:) [], ArgumentTransformationMetadataException
+ FullyQualifiedErrorId : RuntimeException
有什么建议么 ?