从 SharePoint Online 导出 Power BI 报表答案

【问题标题】：Export Power BI Report from SharePoint Online从 SharePoint Online 导出 Power BI 报表
【发布时间】：2020-10-16 20:57:07
【问题描述】：

Power BI 报告可以使用内置的导出功能从https://app.powerbi.com/ 页面导出。

我需要从嵌入此报告的 SharePoint Online 页面中提供相同的功能。请告诉我步骤。

【问题讨论】：

标签： sharepoint powerbi reporting sharepoint-online powerbi-embedded

【解决方案1】：

您可以使用Export To File / Export To File In Group API。

调用 Export-To-File API 时，会触发导出作业。
触发导出作业后，您可以使用 Polling API (Get Export To File Status / Get Export To File Status In Group) 跟踪作业，直到完成。
导出作业完成后，轮询 API 调用会返回用于获取文件的 Power BI URL（该 URL 可在 24 小时内使用）。也可以调用Get File Of Export To File/Get File Of Export To File In Group API 下载。

API 支持并发导出作业请求。您可以同时运行的作业数量取决于您的报告所在的 SKU，详见 this table（即它需要专用容量 - Power BI Premium 或 Power BI Embedded）。

例如，您可以通过以下方式将 API 与 PowerShell 代码一起使用：

Import-Module MicrosoftPowerBIMgmt
$username = "account@example.com" 
$password = "SuperStrongPassword" | ConvertTo-SecureString -asPlainText -Force
$groupId = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
$reportId = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
$format = "PDF" # or PNG, or PPTX. For paginated reports can be CSV, DOCX, IMAGE (i.e. page definition plus file format - BMP, EMF, etc.), MHTML, XLSX or XML
$saveToFolder = "D:\"

$credential = New-Object System.Management.Automation.PSCredential($username, $password)
Connect-PowerBIServiceAccount -Credential $credential
$settings = @{ includeHiddenPages = $false; locale = "en-us" }
$powerBIReportConfiguration = @{ settings = $settings }
$export_body = @{ format = $format; powerBIReportConfiguration = $powerBIReportConfiguration }
$export_response = Invoke-PowerBIRestMethod -Url "https://api.powerbi.com/v1.0/myorg/groups/$groupId/reports/$reportId/ExportTo" -Method Post -Body ($export_body | ConvertTo-Json)
$export_response_json = ConvertFrom-Json $export_response
$exportId = $export_response_json.id

Write-Output "Polling export status..."
$maxPollCount = 500
$exportSucceeded = $false
do
{
    $maxPollCount = $maxPollCount - 1
    Start-Sleep -Seconds 5
    $status_response = Invoke-PowerBIRestMethod -Url "https://api.powerbi.com/v1.0/myorg/groups/$groupId/reports/$reportId/exports/$exportId" -Method Get
    $status_response_json = ConvertFrom-Json $status_response
    $status = $status_response_json.status
    $percentComplete = $status_response_json.percentComplete
    Write-Output "Status: $status, percent complete: $percentComplete (retries left: $maxPollCount)"
    if ($status -eq "Succeeded")
    {
        $exportSucceeded = $true
        $resourceLocation = $status_response_json.resourceLocation
        $reportName = $status_response_json.reportName
        $resourceFileExtension = $status_response_json.resourceFileExtension
        $outFile = [IO.Path]::Combine($saveToFolder, $reportName + $resourceFileExtension)
    }
}
until($exportSucceeded -or $maxPollCount -le 0)

Write-Output "Downloading export..."
$download_response = Invoke-PowerBIRestMethod -Url $resourceLocation -Method Get -OutFile $outFile
Write-Output "Download completed."
Disconnect-PowerBIServiceAccount

【讨论】：