我正面临着一些恼人的情况。我们尝试在我们的应用程序中使用 PuppeteerSharp 来生成背景 PDF,虽然它在开发模式下运行良好,但在生产中却无法运行。
该应用程序是一个 WebAPI 2.0 站点、.NET4.7.1、Windows 10 机器。我认为这两种环境之间的主要区别是:
我们使用以下代码:
var launchOptions = new LaunchOptions
{
DefaultViewport = new ViewPortOptions
{
Width = 1920,
Height = 1080,
IsLandscape = printOptions.Orientation == PrintOrientation.Landscape
},
ExecutablePath = this._chromiumPath,
Timeout = Timeout,
TransportFactory = AspNetWebSocketTransport.AspNetTransportFactory
};
var browser = await Puppeteer.LaunchAsync(launchOptions)
.ConfigureAwait(false);
var page = await browser.NewPageAsync()
.ConfigureAwait(false);
await page.EmulateMediaTypeAsync(PuppeteerSharp.Media.MediaType.Print)
.ConfigureAwait(false);
await page.GoToAsync(url, Timeout, new[] { WaitUntilNavigation.Networkidle0 })
.ConfigureAwait(false);
await page.WaitForTimeoutAsync(2000)
.ConfigureAwait(false);
var options = new PdfOptions
{
Width = printOptions.Format == PrintFormat.A4 ? "210mm" : "297mm",
Height = printOptions.Format == PrintFormat.A4 ? "297mm" : "420mm",
PrintBackground = true,
Landscape = printOptions.Orientation == PrintOrientation.Landscape,
MarginOptions = new PuppeteerSharp.Media.MarginOptions
{
Top = ".4in",
Bottom = ".4in",
Left = ".4in",
Right = ".4in"
}
};
await page.PdfAsync(outputFile, options)
.ConfigureAwait(false);
return result;
page.GoToAsync
永远不会返回,并最终超时。编辑:
false
在所有异步调用中 AspNetWebSocketTransport.AspNetTransportFactory
运输工厂,这似乎也不起作用 最佳答案
如果您要在 IIS 上部署 .NET Framework 应用程序。您还需要使用 PuppeteerSharp.AspNetFramwork并设置 TransportFactory
到浏览器:
using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions()
{
Headless = true,
TransportFactory = AspNetWebSocketTransport.AspNetTransportFactory,
ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)
}).ConfigureAwait(false))
关于puppeteer-sharp - IIS 中的 PuppeteerSharp,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/62426256/