Question

这是我的示例xml数据。如果有任何语法错误或某些xml缺失功能，请忽略。任务是评论上述部分并取消评论以下部分。

<?xml version="1.0" encoding="UTF-8"?>
<providersbeans xmlns="http://www.springframework.org/schema/providers"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:dns="http://www.springframework.org/schema/dns"
  xsi:schemaLocation="http://www.springframework.org/schema/dns/spring-dns.xsd">

<!-- COMMENT THIS SECTION -->

<dns:auth-head alias="authHead">
    <dns:user-generator>    
        <dns:user-data>

            <!-- USER AA -->
            <dns:user name="AA"
                password="AAAAAAAAAAAAAAAA" role="ROLE_AA" />

            <!-- USER BB -->
            <dns:user name="BB"
                password="XXXXXXXXXXXXXXX" role="ROLE_BB" />

        </dns:user-data>            
    </dns:user-generator>
</dns:auth-head>


<!-- UNCOMMENT THIS SECTION-->
<!-- 
<bean id="authHead" class="org.xx.providers"> 
    <property name="providers">
        <list>
            <ref bean="AuthProvider"/>
        </list>
    </property>
</bean>
-->
</providersbeans>

我尝试了一些解决方案，但因为它有一个前缀而无法取得成功。我为评论而修改的代码之一是：

$getxmlpath='C:\Powershell\securityfile.xml'
$xml=[xml](Get-Content $getxmlpath)
$xml.SelectNodes("//auth-head") | ForEach-Object # used with prefix as well, but didnt work
{ 
  $var= $_;
  $mycomment = $xml.CreateComment($var.OuterXml);
  $var.ParentNode.ReplaceChild($mycomment , $var);
}
$xml.Save($getxmlpath);

Answer 1

这样的事可能有用：

[xml]$xml = Get-Content 'C:\Powershell\securityfile.xml'

# create namespace manager
$nsm = New-Object Xml.XmlNamespaceManager($xml.NameTable)
$nsm.AddNamespace('dns', $xml.DocumentElement.dns)

# remove nested comments from <auth-head> node(s)
($xml.SelectNodes('//dns:auth-head//comment()', $nsm)) | % {
  [void]$_.ParentNode.RemoveChild($_)
}
# comment-out node(s)
($xml.SelectNodes('//dns:auth-head', $nsm)) | % {
  $comment = $xml.CreateComment($_.OuterXml)
  [void]$_.ParentNode.ReplaceChild($comment, $_)
}

# uncomment <bean> node(s)
($xml.SelectNodes('//comment()')) | ? {
  $_.InnerText -like '*<bean*'
} | % {
  $newxml = [xml]$_.InnerText
  $node = $xml.ImportNode($newxml.DocumentElement, $true)
  $node.SetAttribute('xmlns', $xml.DocumentElement.NamespaceURI)
  [void]$_.ParentNode.ReplaceChild($node, $_)
}

我没有找到重新插入<bean>节点的方法而没有获得explict（空）命名空间属性（xmlns=""），因此我将该属性设置为默认命名空间XML文档。

请注意，您必须删除（或以其他方式修改）您要注释掉的节点的嵌套注释。否则，第一个嵌套注释中的结束-->会过早地终止注释节点，从而使您的XML结构无效：

<!--dns:auth-head alias="authHead">
    <dns:user-generator>    
        <dns:user-data>

            <!-- USER AA -->   # XML comment ends here!
            <dns:user name="AA"
                password="AAAAAAAAAAAAAAAA" role="ROLE_AA" />

            <!-- USER BB -->
            <dns:user name="BB"
                password="XXXXXXXXXXXXXXX" role="ROLE_BB" />

        </dns:user-data>       # tags from here on are invalid, because
    </dns:user-generator>      # they're missing their respective opening tag
</dns:auth-head-->

注释XML部分（在节点中有前缀）并取消注释其他部分

1 个答案: