Question

如果某些Windows 10可选功能被禁用，我试图通过powershell进行检查，如果缺少任何组件，则添加所有组件。 $ required_IIS_results foreach循环可能不是最有效的方法。这就是我到目前为止所拥有的：

$required_IIS_features = @(
    # Windows 10 IIS Features
    "IIS-WebServerRole",
    "IIS-WebServer",
    "IIS-WebServerManagementTools",
    "IIS-ManagementConsole",
    "IIS-CommonHttpFeatures",
    "IIS-CGI",
    "IIS-HttpRedirect",
    "IIS-IPSecurity"
    )

Function Confirm-IISPrerequisites {
    #Check to see if IIS components are installed
    Write-Host "## Determining if all necessary IIS components have been installed" -ForegroundColor Green
    $required_IIS_results = ForEach ($feature in $required_IIS_features) {Get-WindowsOptionalFeature -Online -FeatureName $feature | Where-Object {$_.State -eq "Disabled"}}

    If($required_IIS_results){
        Write-Host "Installing Required IIS and CGI module" -ForegroundColor Yellow
        Enable-WindowsOptionalFeature -Online -FeatureName IIS-WebServerRole
        Enable-WindowsOptionalFeature -Online -FeatureName IIS-WebServer
        Enable-WindowsOptionalFeature -Online -FeatureName IIS-WebServerManagementTools
        Enable-WindowsOptionalFeature -Online -FeatureName IIS-ManagementConsole
        Enable-WindowsOptionalFeature -Online -FeatureName IIS-CommonHttpFeatures
        Enable-WindowsOptionalFeature -Online -FeatureName IIS-CGI
        Enable-WindowsOptionalFeature -Online -FeatureName IIS-HttpRedirect
        Enable-WindowsOptionalFeature -Online -FeatureName IIS-IPSecurity
    } Else {
        Write-Host "## All of the Necessary IIS Role Services have been installed" -ForegroundColor Green
    }
}
#execute function
Confirm-IISPrerequisites

Answer 1

避免使用foreach的方法：

$required_IIS_features = @(
    # Windows 10 IIS Features
    "IIS-WebServerRole",
    "IIS-WebServer",
    "IIS-WebServerManagementTools",
    "IIS-ManagementConsole",
    "IIS-CommonHttpFeatures",
    "IIS-CGI",
    "IIS-HttpRedirect",
    "IIS-IPSecurity"
)
$required_IIS_results = Get-WindowsOptionalFeature -FeatureName IIS* -Online | Where-Object {$_.FeatureName -in $required_IIS_features -and $_.state -eq "Disabled"}

然后不是尝试启用所有功能，而只启用缺少的功能：

If ($required_IIS_results)
{
    foreach ($MissingFeature in $required_IIS_results)
    {
        Enable-WindowsOptionalFeature -Online -FeatureName $MissingFeature
    }
}

Answer 2

为什么不检查每一个请求。功能并立即安装

Function Confirm-IISPrerequisites {
    #Check to see if IIS components are installed
    Write-Host "## Determining if all necessary IIS components have been installed" -ForegroundColor Green
    ForEach ($feature in $required_IIS_features) {
        IF ((Get-WindowsOptionalFeature -Online -FeatureName $feature).State -eq "Disabled"){
           Write-Host "$($feature) missing - installing" -ForegroundColor Red
           Enable-WindowsOptionalFeature -Online -FeatureName $feature
        }
    }
    Write-Host "## All of the Necessary IIS Role Services have been installed" -ForegroundColor Green
}

Answer 3

这是我在工作中寻找缺少的功能的方法。

using (var conn = new NpgsqlConnection(connString))
            {
                conn.Open();                                
                using (var cmd = new NpgsqlCommand(command, conn))
                ...

Powershell检查窗口可选功能已禁用

3 个答案: