使用 iTextSharp CSSResolver 类的命名空间

Question

我正在使用 iTextSharp CSSResolver 类在 vb.net 中使用外部 css

请告诉我使用 XMLWorkerFontProvider、CssFilesImpl、StyleAttrCSSResolver 类的命名空间。

下面是我的代码：

    Dim fontProvider As XMLWorkerFontProvider = New XMLWorkerFontProvider()

    Dim cssFiles As CssFilesImpl = New CssFilesImpl(fontProvider)

    cssFiles.Add(XMLWorkerHelper.GetInstance().GetDefaultCSS())

    Dim cssRevolver As StyleAttrCSSResolver = New StyleAttrCSSResolver()

    Dim htmlContext As HtmlPipelineContext = New HtmlPipelineContext()

    htmlContext.SetTagFactory(Tags.GetHtmlTagProcessorFactory())

    htmlContext.SetImageProvider(New MyImageProvider(imagePath))

    Dim pipeline As IPipeline = New CssResolverPipeline(cssRevolver, New HtmlPipeline(htmlContext, New PdfWriterPipeline(Document, writer)))

    Dim worker As XMLWorker = New XMLWorker(pipeline, True)

    Dim p As XMLParser = New XMLParser(worker)

    p.Parse(xmlString)

谢谢 拉梅什

Dim sw As New StringWriter()

将硬件调暗为新的 HtmlTextWriter(sw)

strMonthlyDataHtml = LoadReport("PDF")

ltrPDFReport.Text = strMonthlyDataHtml

ltrPDFReport.RenderControl(hw)

Dim sr As New StringReader(sw.ToString())

将 pdfDoc 调暗为新文档(iTextSharp.text.PageSize.A4, 10.0F, 10.0F, 100.0F, 0.0F)

Dim memStream = New MemoryStream()

Dim writer = PdfWriter.GetInstance(pdfDoc, memStream)

writer.CloseStream = False

pdfDoc.Open()

将 htmlContext 调暗为新的 HtmlPipelineContext(Nothing)

htmlContext.SetTagFactory(Tags.GetHtmlTagProcessorFactory())

Dim cssResolver = XMLWorkerHelper.GetInstance().GetDefaultCssResolver(False)

cssResolver.AddCssFile(Server.MapPath("../Assets/css/Efficiency.css"), True)

cssResolver.AddCssFile(Server.MapPath("/Assets/css/Efficiency.css"), True)

Dim pipeline As IPipeline = New CssResolverPipeline(cssResolver, New
HtmlPipeline(htmlContext, New PdfWriterPipeline(pdfDoc, writer))))

Dim worker As XMLWorker = New XMLWorker(pipeline, True)

Dim p As New XMLParser(worker)

p.Parse(sr)

pdfDoc.Close()

Answer 1

您似乎在混合两种不同的东西。当我看到iTextSharp.text.html.simpleparser 时，我假设您使用的是旧的HTMLWorker，这是一个已经停止使用的类。

当我查看您的代码时，我发现您正在使用 XML Worker，它需要一个单独的 DLL (itextsharp.xmlworker.dll)。你使用的类在iTextSharp.tool.xml，与iTextSharp.text.html.simpleparser无关。您可以通过downloading the ZIP file 进行检查，并查看itextsharp-src-xmlworker.zip 中的源代码。