Question

我正在处理一个监视错误文件夹的脚本，并在发生错误时发送电子邮件。对于每个错误，我们在文件夹中获得两个文件，一个文本文件和一个xml。在电子邮件中，我想要包含文本文件的全部内容和xml文件的部分内容。

在以下脚本中，我只获得文本文件的内容。（发送电子邮件的行已注释掉用于测试目的）。我已经阅读过有关变量和foreach的内容，我想这可能是问题所在，但我仍然不确定如何在我的脚本中解决这个问题。或者也许有一种更简单的方法可以做到这一点？

$Foldertowatch = 'C:\lpos\invalidArts' 
$FilterXML = '*.xml' 
$FilterTXT = '*.txt' 

Unregister-Event -SourceIdentifier CreatedEventXML
$fswXML = New-Object System.IO.FileSystemWatcher $Foldertowatch, $FilterXML
$fswXML.EnableRaisingEvents=$true
$fswXML.IncludeSubdirectories=$false

Register-ObjectEvent -InputObject $fswXML -EventName Created -SourceIdentifier CreatedEventXML -Action {
$Filename = $Event.SourceEventArgs.Name
[XML]$XMLFile = (Get-Content $Foldertowatch\$Filename)
$XMLtmp = foreach ($user in $XMLFile.POSLog.POSLogTransaction)
{
$user.RetailStoreID
$user.WorkStationID
$user.OperatorID
$user.SequenceNumber
}
}

Unregister-Event -SourceIdentifier CreatedEventTXT
$fswTXT = New-Object System.IO.FileSystemWatcher $Foldertowatch, $FilterTXT
$fswTXT.EnableRaisingEvents=$true
$fswTXT.IncludeSubdirectories=$false

Register-ObjectEvent -InputObject $fswTXT -EventName Created -SourceIdentifier CreatedEventTXT -Action {
$FilenameTXT = $Event.SourceEventArgs.Name
$ContentTXT = (Get-Content $Foldertowatch\$FilenameTXT) -join "`n"

write-host $user.retailstoreid
Write-Host $contenttxt

<#$From = "from@mail.com"
$To = "to@mail.com"
$SMTPServer = "mailserver.com"
$subject = $env:COMPUTERNAME + " contains invalid ARTSXML"#>
<#Write-Host "Store:" + $ContentXML.RetailStoreID + "`n" + "Workstation:" + $ContentXML.WorkStationID + "`n" +"Operator:" + $ContentXML.OperatorID + "`n" +"Receiptnumber:" + $ContentXML.sequencenumber + "`n" + "`n" + "Filelocation: $Foldertowatch\$FilenameTXT" + "`n" + "`n" + <#$ContentTXT##>
<#$smtp = New-Object System.Net.Mail.SmtpClient($SMTPServer);
$smtp.Send($From, $To, $subject, $body);#>
}

$ ContentXML是早期尝试，现在应该是$ user。如果我像这样运行脚本的第一部分，我设法从XML获取内容：

$Foldertowatch = 'C:\lpos\invalidArts' <# Folder to watch #>
$FilterXML = '*.xml' <# Use *.xml #>
$FilterTXT = '*.txt' <# Use *.txt for poslog2arts, use *.log for POS Reporting #>

Unregister-Event -SourceIdentifier CreatedEventXML
$fswXML = New-Object System.IO.FileSystemWatcher $Foldertowatch, $FilterXML
$fswXML.EnableRaisingEvents=$true
$fswXML.IncludeSubdirectories=$false

Register-ObjectEvent -InputObject $fswXML -EventName Created -SourceIdentifier CreatedEventXML -Action {
$Filename = $Event.SourceEventArgs.Name
[XML]$XMLFile = (Get-Content $Foldertowatch\$Filename)
$XMLtmp = foreach ($user in $XMLFile.POSLog.POSLogTransaction)
{
write-host $user.RetailStoreID
write-host $user.WorkStationID
write-host $user.OperatorID
write-hosts $user.SequenceNumber
}
}

Answer 1

我不确定你的意图，但我看到了一个可能的解决方案。首先，这段代码：

$XMLtmp = foreach ($user in $XMLFile.POSLog.POSLogTransaction)
{
  $user.RetailStoreID
  $user.WorkStationID
  $user.OperatorID
  $user.SequenceNumber
}

你再也不会使用$ XMLtmp了。此外，它只是包含一个字符串数组，而不是像$ user.RetailStoreID

这样的属性。

你可以做的是：

$users = @()

Register-ObjectEvent -InputObject $fswXML -EventName Created -SourceIdentifier CreatedEventXML -Action {
  $Filename = $Event.SourceEventArgs.Name
  [XML]$XMLFile = (Get-Content $Foldertowatch\$Filename)
  foreach ($user in $XMLFile.POSLog.POSLogTransaction) {
    $users += $user
  }
}

然后您可以索引该数组。有多个用户吗？您想发送多封电子邮件吗？

此时您可以执行以下操作：

$users | % { Write-Host $_.RetailStoreId  }

当foreach () {}被点击时，您在}中创建的$ user变量超出范围（又名“消失”）。 $ XMLtmp是不必要的。在$users和Action范围之外声明foreach可确保它对整个脚本都是全局的。

Powershell变量变得“迷失”

1 个答案: