如何使用PowerShell從SharePoint下載文件？

Question

我使用了以下網站來幫助我解決這個問題並排除故障。

1. Download file from SharePoint
2. How to download newest file from SharePoint using PowerShell
3. Mike Smith's Tech Training Notes SharePoint, PowerShell and .Net!
4. Upload file to a SharePoint doc library via PowerShell
5. Download latest file from SharePoint Document Library
6. How to iterate each folders in each of the SharePoint websites using PowerShell
7. PowerShell's Get-ChildItem on SharePoint Library

我試圖從SharePoint文件夾中下載隨機文件，並且當它確實知道文件名和擴展名時，我就可以使用它。

用名和擴展名工作代碼：

$SharePoint = "https://Share.MyCompany.com/MyCustomer/WorkLoad.docx" 
$Path = "$ScriptPath\$($CustomerName)_WorkLoad.docx" 

#Get User Information 
$user = Read-Host "Enter your username" 
$username = "$user@MyCompany" 
$password = Read-Host "Enter your password" -AsSecureString 

#Download Files 
$WebClient = New-Object System.Net.WebClient 
$WebClient.Credentials = New-Object System.Net.Networkcredential($UserName, $Password) 
$WebClient.DownloadFile($SharePoint, $Path) 

不過，我似乎不能夠想出如何與未知名或擴展名的多個文件做到這一點。

我試過映射驅動器，只能以「驅動器映射失敗」結束&「找不到網絡路徑。」錯誤：

$SharePoint = Read-Host 'Enter the full path to Delivery Site' 
$LocalDrive = 'P:' 
$Credentials = Get-Credential 


if (!(Test-Path $LocalDrive -PathType Container)) { 
    $retrycount = 0; $completed = $false 
    while (-not $completed) { 
     Try { 
      if (!(Test-Path $LocalDrive -PathType Container)) { 
       (New-Object -ComObject WScript.Network).MapNetworkDrive($LocalDrive,$SharePoint,$false,$($Credentials.username),$($Credentials.GetNetworkCredential().password)) 
      } 
      $Completed = $true 
     } 
     Catch { 
      if ($retrycount -ge '5') { 
       Write-Verbose "Mapping SharePoint drive failed the maximum number of times" 
       throw "SharePoint drive mapping failed for '$($SharePoint)': $($Global:Error[0].Exception.Message)" 
      } else { 
       Write-Verbose "Mapping SharePoint drive failed, retrying in 5 seconds." 
       Start-Sleep '5' 
       $retrycount++ 
      } 
     } 
    } 
} 

我也使用了下面的代碼，類似的結果或根本沒有結果。

#Get User Information 
$user = Read-Host "Enter your username" 
$username = "$user@MyCompany" 
$password = Read-Host "Enter your password" -AsSecureString 

#Gathering the location of the Card Formats and Destination folder 
$Customer = "$SharePoint\MyCustomer" 
$Products = "$Path\$($CustomerName)\Products\" 

#Get Documents from SharePoint 
$credential = New-Object System.Management.Automation.PSCredential($UserName, $Password) 
New-PSDrive -Credential $credential -Name "A" -PSProvider "FileSystem" -Root "$SharePoint" 
net use $spPath #$password /USER:$user@corporate 

#Get PMDeliverables file objects recursively 
Get-ChildItem -Path "$Customer" | Where-Object { $_.name -like 'MS*' } | Copy-Item -Destination $Products -Force -Verbose 

Answer 1

沒有定義的「輸入參數」，它不完全清楚你需要，所以我會提供的PowerShell應該根據你所描述什麼是有用的幾個片段的完整的解決方案。

我會盡全力爲您提供各種OOTB功能（即Get-SPWeb等）的基礎知識，但如果需要也可以提供這些詳細信息。我在腳本中也過於明確，但知道其中一些行可以被鏈接，管道等等，以使其更有效。

這個例子將遍歷SharePoint庫的內容，並將它們下載到本地機器：

$Destination = "C:\YourDestinationFolder\ForFilesFromSP" 
$Web = Get-SPWeb "https://YourServerRoot/sites/YourSiteCollection/YourSPWebURL" 
$DocLib = $Web.Lists["Your Doc Library Name"] 
$DocLibItems = $DocLib.Items 

foreach ($DocLibItem in $DocLibItems) { 
    if($DocLibItem.Url -Like "*.docx") { 
     $File = $Web.GetFile($DocLibItem.Url) 
     $Binary = $File.OpenBinary() 
     $Stream = New-Object System.IO.FileStream($Destination + "\" + $File.Name), Create 
     $Writer = New-Object System.IO.BinaryWriter($Stream) 
     $Writer.write($Binary) 
     $Writer.Close() 
    } 
} 

這是非常基本的;最上面的變量是您希望存儲下載文件（$Destination），您的SharePoint站點/站點（$Web）的URL和文檔庫（Your Doc Library Name）的名稱的本地計算機上的變量。

該腳本隨後遍歷庫中的項目（foreach ($DocLibItem in $DocLibItems) {}），可選地篩選文件擴展名爲.docx的項目，並將每個項目下載到本地計算機。

您可以通過定位文檔庫中的特定子文件夾，按文檔的元數據或屬性進行過濾，甚至可以在一個腳本中迭代多個站點，Web和/或庫，然後根據相似的屬性。