使用 Powershell 从特定日期的 Outlook 下载 .xlsx 附件

Question

我有以下脚本。 此 $Tests 显示特定日期的 .xlsx 附件列表，但无法下载并引发错误。 请找到以下脚本。

Add-type -assembly "Microsoft.Office.Interop.Outlook"
$olDefaultFolders = "Microsoft.Office.Interop.Outlook.olDefaultFolders" -as [type]
$outlook = New-Object -comobject Outlook.Application
$mapi = $outlook.GetNameSpace(“MAPI”)
$inbox = $mapi.GetDefaultFolder(6)
$FilePath= "c:\temp\Test\"
$subfolder = $inbox.Folders | Where-Object {$_.Name -eq “Test”}
$mail=$subfolder.Items |Select-Object -Property "ReceivedTime",@{name="Attachments";expression={$_.Attachments|%{$_.DisplayName}}} | Where-Object{$_.attachments -match ".xlsx" -and ($_.receivedtime -match "9/15/2020")} | Select-Object "attachments"
$Test = $mail.attachments
foreach ($out in $test) {$_.attachments|foreach {
Write-Host $_.filename
$Filename = $_.filename
If ($out.Contains("xlsx")) {
$_.saveasfile((Join-Path $FilePath "$out")) }}}

我能够过滤具有特定日期的 .xlsx 附件。 但在此之后，我不知道如何保存/下载它们。

Answer 1

在 powershell 中使用 com 对象可能会令人沮丧。 我建议您非常熟悉Get-Member 。 您真的必须询问每个对象。 我已经简化了您的脚本并进行了彻底的测试。 它将从每个匹配的电子邮件（接收日期）中下载每个匹配的附件（名称）

Add-type -assembly "Microsoft.Office.Interop.Outlook"
$olDefaultFolders = "Microsoft.Office.Interop.Outlook.olDefaultFolders" -as [type]
$outlook = New-Object -comobject Outlook.Application
$mapi = $outlook.GetNameSpace(“MAPI”)
$inbox = $mapi.GetDefaultFolder(6)
$FilePath= "c:\temp\Test\"
$subfolder.Items | Where-Object {$_.receivedtime -match "9/20/2020" -and $($_.attachments).filename -match '.xlsx'} | foreach {
    $filename = $($_.attachments | where filename -match '.xlsx').filename
    foreach($file in $filename)
    {
        Write-Host Downloading $file to $filepath -ForegroundColor green
        $outpath = join-path $filepath $file
        $($_.attachments).saveasfile($outpath)
    }
}

您可以将其用于更多“内联”方法。

Add-type -assembly "Microsoft.Office.Interop.Outlook"
$olDefaultFolders = "Microsoft.Office.Interop.Outlook.olDefaultFolders" -as [type]
$outlook = New-Object -comobject Outlook.Application
$mapi = $outlook.GetNameSpace(“MAPI”)
$inbox = $mapi.GetDefaultFolder(6)
$FilePath= "c:\temp\Test\"
$subfolder.Items | Where-Object {$_.receivedtime -match "9/20/2020" -and $($_.attachments).filename -match '.xlsx'} | foreach {
    foreach($attachment in $($_.attachments | where filename -match '.xlsx'))
    {
        Write-Host Downloading $attachment.filename to $filepath -ForegroundColor green
        $attachment.SaveAsFile((join-path $FilePath $attachment.filename))
        
    }
}