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Windows Azure托管站点上的EvoPDF库失败_Azure_Evopdf - Fatal编程技术网

Windows Azure托管站点上的EvoPDF库失败

Windows Azure托管站点上的EvoPDF库失败,azure,evopdf,Azure,Evopdf,PDF HTML到PDF转换库(http://www.evopdf.com/)声称它支持WindowsAzure云平台,但我无法让它工作。我得到一个例外: [Exception: Could not get conversion result header. Data receive error. Could not receive data. Error code: 109] EvoPdf.HtmlToPdf.ImgConverter.GetLayoutFromUrl(String ur

PDF HTML到PDF转换库(http://www.evopdf.com/)声称它支持WindowsAzure云平台,但我无法让它工作。我得到一个例外:

[Exception: Could not get conversion result header. Data receive error. Could not receive data. Error code: 109]
   EvoPdf.HtmlToPdf.ImgConverter.GetLayoutFromUrl(String url, ps& htmlParseInfo) +622
   EvoPdf.HtmlToPdf.PdfConverter.ConvertAndGetPdfDocument(String url, String htmlString, String baseUrl, String internalLinksDocUrl, Boolean fromUrl) +9748
   EvoPdf.HtmlToPdf.PdfConverter.ConvertAndSaveToStream(Stream outStream, String url, String htmlString, String baseUrl, String internalLinksDocUrl, Boolean fromUrl) +61
   EvoPdf.HtmlToPdf.PdfConverter.SavePdfFromUrlToStream(String url, Stream outPdfStream) +20
在库通过web请求获取HTML内容时,这看起来是失败的。Azure中是否存在阻止传出web请求的内容


库被部署为两个DLL,一个本机DLL和一个托管程序集-是否需要任何特殊的Azure配置来允许加载本机DLL?(该库确实支持xcopy部署,我在其他托管环境中也采用了这种方式)。

如果问题与本机DLL有关,您可能希望尝试在中更改以下属性:

  • enablenaviativecodeexecution:确保将其设置为true(默认值为true)
  • executionContext:尝试将其更改为提升
您是否部署了64位版本的DLL

我还在错误消息中看到“错误代码:109”,您不能联系EvoPDF询问这是什么意思吗

更新:如果您在ASP.NET中运行,是否可以尝试更改信任级别

<configuration>
  <system.web>
    <trust level="Full" />
  </system.web>
</configuration>

根据我所见,您需要使用和Azure Web角色,而不是Azure网站。这些站点不支持完全信任运行


EvoPdf有一个Azure的示例项目,您可以下载该项目,该项目展示了如何使用可以运行EvoPdf dll的站点设置Web角色。

EVO HTML to PDF.NET通用库直接在Azure Web角色、Azure工作者角色和Azure虚拟机中工作

对于Azure网站,您可以使用。从中复制的代码示例有:

protected void convertToPdfButton_Click(object sender, EventArgs e)
{
    // Get the server IP and port
    String serverIP = textBoxServerIP.Text;
    uint serverPort = uint.Parse(textBoxServerPort.Text);

    // Create a HTML to PDF converter object with default settings
    HtmlToPdfConverter htmlToPdfConverter = new HtmlToPdfConverter(serverIP, serverPort);

    // Set optional service password
    if (textBoxServicePassword.Text.Length > 0)
        htmlToPdfConverter.ServicePassword = textBoxServicePassword.Text;

    // Set HTML Viewer width in pixels which is the equivalent in converter of the browser window width
    htmlToPdfConverter.HtmlViewerWidth = int.Parse(htmlViewerWidthTextBox.Text);

    // Set HTML viewer height in pixels to convert the top part of a HTML page 
    // Leave it not set to convert the entire HTML
    if (htmlViewerHeightTextBox.Text.Length > 0)
        htmlToPdfConverter.HtmlViewerHeight = int.Parse(htmlViewerHeightTextBox.Text);

    // Set PDF page size which can be a predefined size like A4 or a custom size in points 
    // Leave it not set to have a default A4 PDF page
    htmlToPdfConverter.PdfDocumentOptions.PdfPageSize = SelectedPdfPageSize();

    // Set PDF page orientation to Portrait or Landscape
    // Leave it not set to have a default Portrait orientation for PDF page
    htmlToPdfConverter.PdfDocumentOptions.PdfPageOrientation = SelectedPdfPageOrientation();

    // Set the maximum time in seconds to wait for HTML page to be loaded 
    // Leave it not set for a default 60 seconds maximum wait time
    htmlToPdfConverter.NavigationTimeout = int.Parse(navigationTimeoutTextBox.Text);

    // Set an adddional delay in seconds to wait for JavaScript or AJAX calls after page load completed
    // Set this property to 0 if you don't need to wait for such asynchcronous operations to finish
    if (conversionDelayTextBox.Text.Length > 0)
        htmlToPdfConverter.ConversionDelay = int.Parse(conversionDelayTextBox.Text);

    // The buffer to receive the generated PDF document
    byte[] outPdfBuffer = null;

    if (convertUrlRadioButton.Checked)
    {
        string url = urlTextBox.Text;

        // Convert the HTML page given by an URL to a PDF document in a memory buffer
        outPdfBuffer = htmlToPdfConverter.ConvertUrl(url);
    }
    else
    {
        string htmlString = htmlStringTextBox.Text;
        string baseUrl = baseUrlTextBox.Text;

        // Convert a HTML string with a base URL to a PDF document in a memory buffer
        outPdfBuffer = htmlToPdfConverter.ConvertHtml(htmlString, baseUrl);
    }

    // Send the PDF as response to browser

    // Set response content type
    Response.AddHeader("Content-Type", "application/pdf");

    // Instruct the browser to open the PDF file as an attachment or inline
    Response.AddHeader("Content-Disposition", String.Format("{0}; filename=Getting_Started.pdf; size={1}",
        openInlineCheckBox.Checked ? "inline" : "attachment", outPdfBuffer.Length.ToString()));

    // Write the PDF document buffer to HTTP response
    Response.BinaryWrite(outPdfBuffer);

    // End the HTTP response and stop the current page processing
    Response.End();
}
Include.dat文件 您是否也将evointernal.dat复制/包含到该站点?这为我解决了错误。它应该与*.dll文件位于同一文件夹中

背景:DLL+DAT文件 EVO HTML到PDF库由三个文件组成:

  • EVOTHTMLTOPDF.dll
  • EVOTHTMLTOPDF.xml
  • evointernal.dat

请注意,更新DLL后,也要更新evointeral.dat。否则,109错误将再次发生。

尝试了上述所有方法,但均无效:-(我接受答案,因为建议联系EvoPDF作者:-)您找到解决方案了吗?我也有同样的问题。界面与相同版本的原始EvoPdf完全不同…正如您在上面的代码示例中所看到的,在执行URL或HTML字符串的HTML到PDF转换时,通用库和Azure库之间没有区别。NET的通用库和Azure的库在事件处理方面可能存在一些小的API差异,但不能因此说API完全不同。