使用PowerShell从SharePoint Online下载文件

Question

我需要使用PowerShell从sharepoint在线文档库下载文件

我已经设法达到下载应该发生但没有运气的程度.

我知道它与我如何使用流/写入器有关

任何提示将不胜感激

*编辑在我的本地目录中只抛出0个长度的文件没有错误消息

$SPClient =  [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Client")
$SPRuntime = [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Client.Runtime")

$webUrl =  Read-Host -Prompt "HTTPS URL for your SP Online 2013 site" 
$username = Read-Host -Prompt "Email address for logging into that site" 
$password = Read-Host -Prompt "Password for $username" -AsSecureString
$folder = "PoSHTest" 
$destination = "C:\\test"

$ctx = New-Object Microsoft.SharePoint.Client.ClientContext($webUrl) 
$ctx.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($username, $password)
$web = $ctx.Web
$lists = $web.Lists.GetByTitle($folder)
$query = [Microsoft.SharePoint.Client.CamlQuery]::CreateAllItemsQuery(10000) 
$result = $lists.GetItems($query)
$ctx.Load($Lists)
$ctx.Load($result)
$ctx.ExecuteQuery()

#Edited the foreach as per @JNK
foreach ($File in $result) {
         Write-host "Url: $($File["FileRef"]), title: $($File["FileLeafRef"]) "
        $binary = [Microsoft.SharePoint.Client.File]::OpenBinaryDirect($ctx,$File["FileRef"])
        $Action = [System.IO.FileMode]::Create 
        $new = $destination + "\\" + $File["FileLeafRef"]
        $stream = New-Object System.IO.FileStream $new, $Action 
        $writer = New-Object System.IO.BinaryWriter($stream)
        $writer.write($binary)
        $writer.Close()

}

Answer 1

您还可以通过提供SharePoint Online凭据从SharePoint Online下载资源来使用WebClient.DownloadFile方法,如下所示.

先决条件

必须在运行脚本的计算机上安装SharePoint Online Client组件SDK.

如何在PowerShell中的SharePoint Online/O365中下载文件

Download-File.ps1 功能:

[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Client")
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Client.Runtime")


 Function Download-File([string]$UserName, [string]$Password,[string]$FileUrl,[string]$DownloadPath)
 {
    if([string]::IsNullOrEmpty($Password)) {
      $SecurePassword = Read-Host -Prompt "Enter the password" -AsSecureString 
    }
    else {
      $SecurePassword = $Password | ConvertTo-SecureString -AsPlainText -Force
    }
    $fileName = [System.IO.Path]::GetFileName($FileUrl)
    $downloadFilePath = [System.IO.Path]::Combine($DownloadPath,$fileName)


    $client = New-Object System.Net.WebClient 
    $client.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($UserName, $SecurePassword)
    $client.Headers.Add("X-FORMS_BASED_AUTH_ACCEPTED", "f")
    $client.DownloadFile($FileUrl, $downloadFilePath)
    $client.Dispose()
}

用法

Download-File -UserName "username@contoso.onmicrosoft.com" -Password "passowrd" -FileUrl https://consoto.sharepoint.com/Shared Documents/SharePoint User Guide.docx -DownloadPath "c:\downloads"

Answer 2

我可以使用以下相关代码片段成功下载文件。您应该能够根据情况扩展它。

Add-Type –Path "C:\Program Files\Common Files\microsoft shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.dll"
Add-Type –Path "C:\Program Files\Common Files\microsoft shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"
$siteUrl = Read-Host -Prompt "Enter web URL"
$username = Read-Host -Prompt "Enter your username"
$password = Read-Host -Prompt "Enter password" -AsSecureString
$source = "/filepath/sourcefilename.dat" #server relative URL here
$target = "C:/detinationfilename.dat" #URI of the file locally stored

$ctx = New-Object Microsoft.SharePoint.Client.ClientContext($siteUrl)
$credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($username, $password)
$ctx.Credentials = $credentials

[Microsoft.SharePoint.Client.FileInformation] $fileInfo = [Microsoft.SharePoint.Client.File]::OpenBinaryDirect($ctx,$source);
[System.IO.FileStream] $writeStream = [System.IO.File]::Open($target,[System.IO.FileMode]::Create);

$fileInfo.Stream.CopyTo($writeStream);
$writeStream.Close();