使用 PowerShell V2 和 CSOM 下载 SharePoint 2010 库项目

Question

我的目标是：获取 SharePoint 2010 库中文件夹中的项目。我正在尝试使用 CSOM 和 PowerShell 从 SharePoint 2010 库中获取一些项目。我尝试了三种在互联网上找到的不同方法，但仍然没有成功。另外微软的文档在这方面真的很糟糕，希望有人能帮助我。所以我们开始吧：

1.Method A

            [Microsoft.SharePoint.Client.FileInformation]$fileInfo = [Microsoft.SharePoint.Client.File]::OpenBinaryDirect($ctx, $file.ServerRelativeUrl);
            [System.IO.FileStream]$writeStream = [System.IO.File]::Open("$($libraryTargetPath)$($file.Name)", [System.IO.FileMode]::Create);
            $fileInfo.Stream.CopyTo($writeStream);
            $writeStream.Close();

使用 A 方法我得到这个错误：

方法调用失败，因为 [System.Net.ConnectStream] 不包含名为 'CopyTo'.
的方法 + $fileInfo.Stream.CopyTo <<<< ($writeStream);
+ CategoryInfo：InvalidOperation：（CopyTo：String）[]，RuntimeException
+ FullyQualifiedErrorId : MethodNotFound

[System.Net.ConnectStream]找不到方法CopyTo
我在 System.Net 命名空间和 "Microsoft.SharePoint.Client.FileInformation" class 中查看有关此的信息，但没有成功:(

2.Method B

            $binary = [Microsoft.SharePoint.Client.File]::OpenBinaryDirect($ctx, $file.ServerRelativeUrl)
            $Action = [System.IO.FileMode]::Create
            $new = "$($libraryTargetPath)$($file.Name)"
            $stream = New-Object System.IO.FileStream $new, $Action
            $writer = New-Object System.IO.BinaryWriter($stream)
            $writer.write($binary)
            $writer.Close()

方法B 不会给我一个错误，但它不会下载项目，而是在目标文件夹中生成空文件。所以这个方法不是下载项目，只是制作新文件。

3.Method C

            $binary = $file.OpenBinary()
            $stream = New-Object System.IO.FileStream("$($libraryTargetPath)$($file.Name)"), Create
            $writer = New-Object System.IO.BinaryWriter($stream)
            $writer.write($binary)
            $writer.Close()

我不确定方法 C 是否属于 CSOM 或 SharPoint 内置服务器端客户端，如果是这样请告诉我。这是我得到的错误：

方法调用失败，因为 [Microsoft.SharePoint.Client.File] 不包含名为 'OpenBinary' 的方法。在 C:\Users\Administrator\Desktop\SharePointOnPremisesBackUp\SharePointOnPremisesBackUp.ps1:77 char:31
+ $二进制= $file.OpenBinary <<<< ()
+ CategoryInfo：InvalidOperation：（OpenBinary：String）[]，RuntimeException
+ FullyQualifiedErrorId : MethodNotFound

而PowerShell在Microsoft.SharePoint.Client.File中找不到OpenBinary()方法，几乎没有相关信息这个方法。

这是我尝试使用的完整函数：

function GetDocumentLibs ($ctx, $web)
{
    Function  IterateFoldersRecursively([Microsoft.SharePoint.Client.Folder]$folder, [Microsoft.SharePoint.Client.ClientContext]$ctx)
    {
      # make sure that the "Web.Context.Url" is the current web url
      if ($web.Context.Url.StartsWith($SiteCollectionUrl) -eq $true)
      {
        $files = $folder.Files
        $ctx.Load($folder.Files)
        $ctx.Load($folder.Folders)
        $ctx.ExecuteQuery()

        foreach ($subFolder in $folder.Folders)
        {
            IterateFoldersRecursively $subFolder $ctx
        }

        # Check if folder Exist and Skip

        $libraryTargetPath = "$($TargetPath)$($folder.ServerRelativeUrl.Replace('/', '\'))"
        New-Item -Path $libraryTargetPath -ItemType Directory -Force

            foreach ($file in $files)
            {
            # Method 1
            [Microsoft.SharePoint.Client.FileInformation]$fileInfo = [Microsoft.SharePoint.Client.File]::OpenBinaryDirect($ctx, $file.ServerRelativeUrl);
            [System.IO.FileStream]$writeStream = [System.IO.File]::Open("$($libraryTargetPath)$($file.Name)", [System.IO.FileMode]::Create);
            $fileInfo.Stream.CopyTo($writeStream)
            $writeStream.Close()

            # Method 2
            $binary = [Microsoft.SharePoint.Client.File]::OpenBinaryDirect($ctx, $file.ServerRelativeUrl)
            $Action = [System.IO.FileMode]::Create
            $new = "$($libraryTargetPath)$($file.Name)"
            $stream = New-Object System.IO.FileStream $new, $Action
            $writer = New-Object System.IO.BinaryWriter($stream)
            $writer.write($binary)
            $writer.Close()

            # Method 3
            $binary = $file.OpenBinary()
            $stream = New-Object System.IO.FileStream("$($libraryTargetPath)$($file.Name)"), Create
            $writer = New-Object System.IO.BinaryWriter($stream)
            $writer.write($binary)
            $writer.Close()

            # delete folder
            }
       }
    }
    $folder = $web.GetFolderByServerRelativeUrl($web.ServerRelativeUrl)
    $ctx.Load($folder)
    $ctx.ExecuteQuery()

    IterateFoldersRecursively $folder $ctx
}

我使用的工具：

Sapien 的 PowerShell Studio
带有 CSOM 的 PowerShell V2
SharePoint 2010 内部部署

如果您有任何有用的解决方案、参考、文档或教程，请告诉我。提前致谢。

Answer 1

经过大量研究，我找到了解决方案并决定使用此方法：

function GetDocumentLibs ($ctx, $web)
{
    $site = $ctx.Site
    $ctx.Load($site)
    $ctx.ExecuteQuery()
    $siteUrl = $site.Url

    Function IterateFoldersRecursively([Microsoft.SharePoint.Client.Folder]$folder, [Microsoft.SharePoint.Client.ClientContext]$ctx)
    {
        if ($web.Context.Url.StartsWith($SiteCollectionUrl) -eq $true)
        {
            $files = $folder.Files
            $ctx.Load($folder.Files)
            $ctx.Load($folder.Folders)
            $ctx.ExecuteQuery()

            foreach ($subFolder in $folder.Folders)
            {
                IterateFoldersRecursively $subFolder $ctx
            }

            $targetPath = "$($TargetPath)$($folder.ServerRelativeUrl.Replace('/', '\'))"
            New-Item -Path $targetPath -ItemType Directory -Force

            foreach ($file in $files)
            {
                $client = new-object System.Net.WebClient
                $client.UseDefaultCredentials = $true
                $client.DownloadFile("$($siteUrl)$($file.ServerRelativeUrl)", "$($targetPath)$($file.Name)")
            }
        }
    }
    $folder = $web.GetFolderByServerRelativeUrl($web.ServerRelativeUrl)
    $ctx.Load($folder)
    $ctx.ExecuteQuery()

    IterateFoldersRecursively $folder $ctx
}

记得实现一些异常处理。我希望这对遇到同样问题的人有所帮助。

使用 PowerShell V2 和 CSOM 下载 SharePoint 2010 库项目

Download SharePoint 2010 Library Items using PowerShell V2 with CSOM

sharepoint-2010

powershell-2.0

csom

powershell-studio