Question

为我的团队编写脚本，该脚本对url列表进行状态检查。完全虚假的url仍然可以返回200。如果我应该使用else吗？

   #Place URL list file in the below path
   $sites = Get-Content -Path .\customer_sites.txt

   foreach ($site in $sites){
   $status = (Invoke-WebRequest -Uri $site -UseDefaultCredentials -AllowUnencryptedAuthentication - 
   ErrorAction SilentlyContinue).statuscode
   switch ($status) {
    200 { 
        Write-Host "Status code $status for site $site ALL GOOD" -ForegroundColor Green
        # further action/code specific to code 200 here 
    }
    401 { 
        Write-Host "Status code $status for site $site SERVER IS UP BUT NO ACCESS" -ForegroundColor Yellow
        # further action/code specific to code 404 here  
    }
    default { 
        Write-Host "Status code $status for site $site ITS DEAD, GO LOOK" -ForegroundColor Red
        # further action/code specific to 'other' here 
    }
}

}

Answer 1

我认为通过使用-ErrorAction SilentlyContinue，状态变量将保持其旧值并因此返回“ ALL GOOD”。

更好的方法是将测试放在try..catch块中。

类似

$sites = Get-Content -Path .\customer_sites.txt

foreach ($site in $sites) {
    try{
        $response  = Invoke-WebRequest $site -UseDefaultCredentials -UseBasicParsing -Method Head -ErrorAction Stop
        $status = [int]$response.StatusCode
    }
    catch {
        $status = [int]$_.Exception.Response.StatusCode.value__
    }
    switch ($status) {
        {$_ -ge 100 -and $_ -lt 300}  { 
            Write-Host "Status code $status for site $site ALL GOOD" -ForegroundColor Green
            break
        }
        {$_ -ge 300 -and $_ -lt 400}  { 
            Write-Host "$site is redirected. Statuscode: $status" -ForegroundColor Green
            break
        }
        {$_ -ge 400 -and $_ -lt 500}  { 
            Write-Host "Status code $status for site $site SERVER IS UP BUT NO ACCESS" -ForegroundColor Yellow
            break
        }
        {$_ -ge 500 -and $_ -lt 600}  { 
            Write-Host "Status code $status for site $site ITS DEAD, GO LOOK" -ForegroundColor Red
            break
        }
        default { Write-Host "$site returned an unhandled status code. Statuscode: $status, GO LOOK" -ForegroundColor Red}
    }
}

if语句应该是其他吗？

1 个答案: