运行我的脚本时出现 GetEnumerator 错误

Question

我正在尝试使用以下脚本提取和导出 Azure Webapp 设置

 $allWebApps = Get-AzureRmWebApp
 $resourceGroups = $allWebApps | Select-Object 'ResourceGroup' -Unique
 foreach($r in $resourceGroups)
{
$rgName = $r.ResourceGroup    
$webApps = Get-AzureRmWebApp -ResourceGroupName $rgName

foreach($w in $webApps)
{
    $webAppName = $w.Name        
    Write-Host Processing Webapp : $webAppName

    $webApp = Get-AzureRmWebApp -ResourceGroupName $rgName -Name $webAppName
    $appSettings = $webApps.SiteConfig.AppSettings

    # Extract AppSettings to CSV
    $appSettings.GetEnumerator() | 
            Sort-Object -Property Name -Descending |
            Select-Object -Property @{n='Key';e={$_.Name}},Value |
            Export-Csv -Path "C:\Cloud\$webAppName.csv" -NoTypeInformation -Append

}
}    

但我不断收到以下错误：

You cannot call a method on a null-valued expression.
At C:\Cloud\ExportsWebApp_config.ps1:17 char:9
+         $appSettings.GetEnumerator() |
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo          : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull

有人可以帮忙吗？

Answer 1

$appSettings = $webApps.SiteConfig.AppSettings

我认为应该更改此行，否则您将尝试获取整个网络应用程序数组的属性。

$appSettings = $webApp.SiteConfig.AppSettings