Question

我正在尝试运行Powershell脚本并显示错误代码和错误消息（如果失败）。应该以这种格式向我输出结果：

"FAILED;ErrorCode;ErrorMessage;"

这是我的剧本：

param([String]$Cab_Type)
$output

if(!(Test-Connection -Cn 165.100.10.10 -BufferSize 16 -Count 1 -quiet))
{
$output = "FAILED; " + $LASTEXITCODE + ";" + $error[0] + ";"
}
else
{
$output = "PASSED"
}

Write-Host $Cab_Type
Write-Host "<ScriptResult_Start>"
Write-Host $output
Write-Host "<ScriptResult_End>"

我试图故意对我知道会失败的地址执行ping操作。运行脚本时，它会向我返回错误消息，但不会返回错误代码。

$ LASTEXITCODE是否不返回脚本的错误代码？即使我的脚本有效，它是否仅返回0或1？有没有办法获取脚本的实际错误代码？

Answer 1

也许这就是你所追求的？

# set up a hash with possible Ping status codes
$status = @{
    11001 = 'Buffer Too Small'
    11002 = 'Destination Net Unreachable'
    11003 = 'Destination Host Unreachable'
    11004 = 'Destination Protocol Unreachable'
    11005 = 'Destination Port Unreachable'
    11006 = 'No Resources'
    11007 = 'Bad Option'
    11008 = 'Hardware Error'
    11009 = 'Packet Too Big'
    11010 = 'Request Timed Out'
    11011 = 'Bad Request'
    11012 = 'Bad Route'
    11013 = 'TimeToLive Expired Transit'
    11014 = 'TimeToLive Expired Reassembly'
    11015 = 'Parameter Problem'
    11016 = 'Source Quench'
    11017 = 'Option Too Big'
    11018 = 'Bad Destination'
    11032 = 'Negotiating IPSEC'
    11050 = 'General Failure'
}

$server = '165.100.10.10'
$ping   = (Get-WmiObject -Class Win32_PingStatus -Filter "Address='$server'").StatusCode

if (!$ping -or [int]$ping -ne 0) {
    $err = if ( $status[[int]$ping]) { $status[[int]$ping] } else { "Unknown Failure" }
    $output = "FAILED; $ping; $err"

}
else { $output = "PASSED" }

Write-Host $output

上面的示例输出：

FAILED; 11010; Request Timed Out

Answer 2

有多种方法可以处理错误并进行验证。首先，我希望您将主要代码保留在try/catch块下并捕获错误消息，以便您了解错误的确切含义。下面是对代码的修改。

param([String]$Cab_Type)
$output
try
{
    if(!(Test-Connection -Cn 165.100.10.10 -BufferSize 16 -Count 1 -quiet))
    {
    $output = "FAILED; " + $LASTEXITCODE + ";" + $error[0] + ";"
    }
    else
    {
    $output = "PASSED"
    }

    Write-Host $Cab_Type
    Write-Host "<ScriptResult_Start>"
    Write-Host $output
    Write-Host "<ScriptResult_End>"
}
catch
{
    $_.Exception.Message
}

还要经历大约1个。TRY CATCH FINALLY in PS

除此之外，您可以使用$Error变量来了解所有错误。

浏览2。About $Error variable and how to use it effectively

您还需要了解3。Powershell Exceptions and Everything you ever wanted to know

希望它会有所帮助，并为您提供指导。

如何显示Powershell脚本中的错误代码？

2 个答案: