Question

我试图测量核心服务器上的下载目录，这些目录是来自用户的文件夹重定向，还有一些其他没有下载目录的目录。

因此尝试捕获此异常，但它既不捕获指定的异常，也不捕获所有的异常。

$path = "\\Server\folderredirection"
$childitem = Get-ChildItem -Path $path
foreach ($c in $childitem)
{
    $dloads = "$path\$c\Downloads\*"
    Write-Log "------------------------------------------"
        try{
            $files = Get-ChildItem -path $dloads -Recurse
            $Size = ($files | Measure-Object -Sum Length).Sum / 1MB
            $Size = [math]::Round($Size,2)
            if($Size -gt 0)
            {
                Write-Log "$c has worth $Size MB items in downloads"
            }else{
                Write-Log "$c has no items in downloads"
            }
            $totalSize = $totalSize + $Size
        }catch [System.Management.Automation.ItemNotFoundException]{
            Write-Log "$c has no download dir"
        }catch{
            Write-Log "Unexpected Error while $c"
        }        
    Write-Log "------------------------------------------"
}

我不知道我在PW中执行任务时是否失败还是欺骗自己。

谢谢您的帮助。

Answer 1

为了使Catch块在Try..Catch中触发，必须抛出终止错误。 Get-ChildItem默认为不存在的路径引发一个非终止错误。通过使用-ErrorAction开关并将其设置为Stop，可以强制cmdlet为所有错误抛出终止错误。或者，您可以更改全局$ErrorActionPreference变量。

这应该有效：

$path = "\\Server\folderredirection"
$childitem = Get-ChildItem -Path $path
foreach ($c in $childitem)
{
    $dloads = "$path\$c\Downloads\*"
    Write-Log "------------------------------------------"
        try{
            $files = Get-ChildItem -path $dloads -Recurse -ErrorAction Stop
            $Size = ($files | Measure-Object -Sum Length).Sum / 1MB
            $Size = [math]::Round($Size,2)
            if($Size -gt 0)
            {
                Write-Log "$c has worth $Size MB items in downloads"
            }else{
                Write-Log "$c has no items in downloads"
            }
            $totalSize = $totalSize + $Size
        }catch [System.Management.Automation.ItemNotFoundException]{
            Write-Log "$c has no download dir"
        }catch{
            Write-Log "Unexpected Error while $c"
        }        
    Write-Log "------------------------------------------"
}

Powershell在foreach中没有获得Item异常

1 个答案: