如何在PowerShell中捕获异常并将其发送到方法来处理属性？

Question

我有一个这样工作的时钟：

catch  [System.InvalidOperationException]
{
     Process-Exception($_.Exception,1111) 
}

然后我想这样处理异常：

# Write exceptions to eventlog and reset socket
function Process-Exception { param ($exception, $eventID)

    $dateTime = Get-Date
    #Write-EventLog -ComputerName $env:COMPUTERNAME -Source PowerShell -LogName Application -EventId $eventID `

    #for now: write-host [string] instead of -Message [string]
    write-host "Date and time:`t" + $dateTime + "`r`n`" 
    write-host "Exception Source:`t" + $exception.Source   
    write-host "Error Code:`t"+ $exception.NativeErrorCode  
    write-host "Exception Message:" + $exception.Message  
    write-host "Stack Trace:`t" + $exception.StackTrace + "`r`n`r`n`

    $socket = $null
}

其中`t是一个选项卡，需要访问$exception属性。不幸的是，当我这样做时，异常没有发送到方法，只有错误代码（本例为1111）被发送。信息是：

 write-host   Stack Trace:   + Cannot find type [[System.InvalidOperationException]]: 
make sure the assembly containing this type is loaded. 9999.StackTrace + 

如何向方法发送完整异常？如果你对代码有改进，请告诉我！

Answer 1

这和你的情况不完全一样，但我想知道这是否适合你。据我所知，你的代码看起来不错。我对函数及其参数定义做了一些更改。

function Process-Exception {
    [CmdletBinding()]
    param (
        [System.Exception] $Exception
        , [int] $EventID
    )

    $dateTime = Get-Date
    #Write-EventLog -ComputerName $env:COMPUTERNAME -Source PowerShell -LogName Application -EventId $eventID `

    #for now: write-host [string] instead of -Message [string]
    write-host "Date and time:`t" + $dateTime + "`r`n";
    write-host "Exception Source:`t" + $exception.Source   
    write-host "Error Code:`t"+ $exception.NativeErrorCode  
    write-host "Exception Message:" + $exception.Message  
    write-host "Stack Trace:`t" + $exception.StackTrace + "`r`n`r`n"
}

try {
    [invalidtype]
}
catch [System.Exception] {
    Process-Exception -Exception $_.Exception -EventID 1111;
}

Answer 2

您的函数中存在语法错误，您将其称为错误。

1. 您在行上有额外的波浪线来写入日期时间，在行上有额外的波浪线来写入堆栈跟踪

校正功能：

# Write exceptions to eventlog and reset socket
function Process-Exception { param ([Exception]$exception, [int]$eventID)

    $dateTime = Get-Date

    write-host ("Date and time:`t" + $dateTime + "`r`n")
    write-host ("Exception Source:`t" + $exception.Source)
    write-host ("Error Code:`t"+ $exception.NativeErrorCode)
    write-host ("Exception Message:" + $exception.Message)
    write-host ("Stack Trace:`t" + $exception.StackTrace + "`r`n`r`n")

    $socket = $null
}

在catch块中调用函数的示例：

Process-Exception $_.Exception 111

参考链接：

如何在PowerShell中连接字符串和变量？

圆括号Powershell函数

Answer 3

这是我刚才玩的一些代码。

function Process-Exception
{
    param([System.InvalidOperationException]$Exception, [int] $EventID)
    $dateTime = Get-Date
    #Write-EventLog -ComputerName $env:COMPUTERNAME -Source PowerShell -LogName Application -EventId $eventID `

    #for now: write-host [string] instead of -Message [string]
    write-host "Date and time:`t" + $dateTime + "`r`n`" 
    write-host "Exception Source:`t" + $exception.Source   
    write-host "Error Code:`t"+ $exception.NativeErrorCode  
    write-host "Exception Message:" + $exception.Message  
    write-host "Stack Trace:`t" + $exception.StackTrace + "`r`n`r`n`

    $socket = $null

}

function ExceptionTesting
{
    Try 
    {
        throw  [System.InvalidOperationException] "Here is a message"
    }
    catch [System.InvalidOperationException]
    {
        #Write-Host $_.Exception
        Process-Exception $_.Exception  1111
    }
}

ExceptionTesting