[英]Using Powershell to edit XML file
我有一個 XML 文件,我需要修改其中的連接字符串。 以下是該文件的示例。
<policy>
<application-policy name="Part1">
<authentication>
<login-module code="jboss.loginmodule" flag="required">
<module-option name="allowEmptyPasswords">false</module-option>
<module-option name="dbUrl">jdbc:oracle:thin:@hostname:1521/test=</module-option>
</login-module>
</authentication>
</application-policy>
<application-policy name="Part2">
<authentication>
<login-module code="jboss.loginmodule" flag="required">
<module-option name="allowEmptyPasswords">false</module-option>
<module-option name="dbUrl">jdbc:oracle:thin:@hostname:1521/test=</module-option>
</login-module>
</authentication>
</application-policy>
<application-policy name="Part3">
<authentication>
<login-module code="jboss.loginmodule" flag="required">
<module-option name="allowEmptyPasswords">false</module-option>
<module-option name="dbUrl">jdbc:oracle:thin:@hostname:1521/test=</module-option>
</login-module>
</authentication>
</application-policy>
<application-policy name="Part4">
<authentication>
<login-module code="jboss.loginmodule" flag="required">
<module-option name="allowEmptyPasswords">false</module-option>
<module-option name="dbUrl">jdbc:oracle:thin:@hostname:1521/test</module-option>
</login-module>
</authentication>
</application-policy>
</policy>
如何更改四個地方的module-option
中的字符串“jdbc:oracle:thin:@hostname:1521/test”。
該字符串始終相同,並且將從同一個變量中替換四次。
以下是我嘗試過的,但它只是更改了實際名稱“dbUrl”,而且只是第一次。
$xmlFile = "C:\Users\Dan\Desktop\login-Config.xml"
[xml]$doc = Get-Content $xmlFile
$node = $doc.SelectSingleNode("/policy/application-policy/authentication/login-module/module-option[@name='dbUrl']")
$node.name = "jdbc:oracle:thin:@hostname1:1521/test1"
$doc.Save($xmlFile)
下面是我希望 output 的樣子。
<policy>
<application-policy name="Part1">
<authentication>
<login-module code="jboss.loginmodule" flag="required">
<module-option name="allowEmptyPasswords">false</module-option>
<module-option name="dbUrl">jdbc:oracle:thin:@hostname1:1521/test1/test=</module-option>
</login-module>
</authentication>
</application-policy>
<application-policy name="Part2">
<authentication>
<login-module code="jboss.loginmodule" flag="required">
<module-option name="allowEmptyPasswords">false</module-option>
<module-option name="dbUrl">jdbc:oracle:thin:@hostname1:1521/test1/test=</module-option>
</login-module>
</authentication>
</application-policy>
<application-policy name="Part3">
<authentication>
<login-module code="jboss.loginmodule" flag="required">
<module-option name="allowEmptyPasswords">false</module-option>
<module-option name="dbUrl">jdbc:oracle:thin:@hostname1:1521/test1/test=</module-option>
</login-module>
</authentication>
</application-policy>
<application-policy name="Part4">
<authentication>
<login-module code="jboss.loginmodule" flag="required">
<module-option name="allowEmptyPasswords">false</module-option>
<module-option name="dbUrl">jdbc:oracle:thin:@hostname1:1521/test1/test</module-option>
</login-module>
</authentication>
</application-policy>
</policy>
如果您想要所有這些,請使用SelectNodes()
而不是SelectSingleNode()
,並確保寫入InnerText
屬性而不是Name
:
foreach($urlNode in $doc.SelectNodes("/policy/application-policy/authentication/login-module/module-option[@name='dbUrl']")){
$urlNode.InnerText = "jdbc:oracle:thin:@hostname1:1521/test1"
}
您可以首先迭代每個<application-policy>
節點,然后迭代每個<module-option>
節點,並且只將InnerText
設置為name="dbUrl"
的新連接字符串。
演示:
# Create XML object from file
[xml]$xml = Get-Content -Path "test.xml"
# Iterate each policy node
foreach ($policy in $xml.policy.ChildNodes)
{
# Iterate each module option node
foreach ($moduleOption in $policy.authentication.'login-module'.'module-option')
{
# Only the dbUrl module option
if ($moduleOption.name -eq "dbUrl")
{
$moduleOption.InnerText = "jdbc:oracle:thin:@hostname1:1521/test1/test"
}
}
}
# Save to output XML file
$xml.Save("output.xml")
output.xml
<policy>
<application-policy name="Part1">
<authentication>
<login-module code="jboss.loginmodule" flag="required">
<module-option name="allowEmptyPasswords">false</module-option>
<module-option name="dbUrl">jdbc:oracle:thin:@hostname1:1521/test1/test</module-option>
</login-module>
</authentication>
</application-policy>
<application-policy name="Part2">
<authentication>
<login-module code="jboss.loginmodule" flag="required">
<module-option name="allowEmptyPasswords">false</module-option>
<module-option name="dbUrl">jdbc:oracle:thin:@hostname1:1521/test1/test</module-option>
</login-module>
</authentication>
</application-policy>
<application-policy name="Part3">
<authentication>
<login-module code="jboss.loginmodule" flag="required">
<module-option name="allowEmptyPasswords">false</module-option>
<module-option name="dbUrl">jdbc:oracle:thin:@hostname1:1521/test1/test</module-option>
</login-module>
</authentication>
</application-policy>
<application-policy name="Part4">
<authentication>
<login-module code="jboss.loginmodule" flag="required">
<module-option name="allowEmptyPasswords">false</module-option>
<module-option name="dbUrl">jdbc:oracle:thin:@hostname1:1521/test1/test</module-option>
</login-module>
</authentication>
</application-policy>
</policy>
像這樣加載您的 XML 文件$doc = (gc $configPath) -as [xml]
將 xml 存儲在 var.. 中后,現在您可以讀取和替換數據
$doc.SelectSingleNode('//connectionStrings/add[@name="'+ $connectionName +'"]/@connectionString').'#text' = $connectionString
$doc.Save($configPath)
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