Question

我正在尝试使用itextsharp将html内容转换为pdf。我有版本5.5.4的xmlworker和itextsharp。在尝试执行代码时，在C：/ Test中提到的路径中生成pdf文件，但无法打开该文件。我正在使用外部css文件，下面也会给出参考。

body {margin: 0;font-family: Arial;font-size: 10px;}
table {border-collapse: collapse;font-size: 13px; font-weight:bold; width:100%; border-color:black;}
.NoTableTop{border-top:none;}
tr.NoTop td{border-top:none;}
tr.NoBot td {border-bottom-color:white;}

        Dim sb As New System.Text.StringBuilder()
        sb.Append("<html xmlns=""http://www.w3.org/1999/xhtml"">")
        sb.Append("<head><title></title></head><body>")
        sb.Append("<table cellpadding=0 cellspacing=0 border=""1""> ")
        sb.Append("<tr><td>")
        sb.Append("<div style=""float:left;"" width=""50%"">&nbsp;<img style=""padding-top:3px;"" src=""C:/image1.jpg"" width=70 height=75 style=""vertical-align:middle;"" /></div>")
        sb.Append("<div style=""float:right; padding:8px""><img src=""c:/images/Logo.jpg"" width=""400"" height=""70"" /></div>")
        sb.Append("</td></tr>")
        sb.Append("<tr style=""vertical-align:middle;"">")
        sb.Append("<td style=""padding:3px; vertical-align:middle;"">")
        sb.Append("<div align=""center"" width=""50%"">Company Invoice - JAN 2015")
        sb.Append("</div></td></tr><tr><td>")
        sb.Append("<div align=""center"" width=""50%"">Invoice Details</div>")
        sb.Append("</td></tr></table>")
        sb.Append("<table cellpadding=0 cellspacing=0 border=""1"" class=""NoTableTop"">")
        sb.Append("<tr class=""NoTop"">")
        sb.Append("<td width=""15%""><div align=""center"">&nbsp; Name of the Company</div></td>")
        sb.Append("<td>&nbsp;Company1</td>")
        sb.Append("<td><div align=""center"">&nbsp;No.</div></td>")
        sb.Append("<td><div align=""center"">12345</div></td></tr>")
        sb.Append("<tr><td><div align=""center"">&nbsp; Department</div></td>")
        sb.Append("<td colspan=""3""><div>&nbsp;Dept 1</div></td></tr></table>")

我有两个用于生成PDF的代码

代码1

        Dim html As New StringReader(sb.ToString)

        Using Stream As New MemoryStream
            Using doc As New iTextSharp.text.Document(PageSize.A4, 10, 10, 10, 10)
                Using writer As iTextSharp.text.pdf.PdfWriter = iTextSharp.text.pdf.PdfWriter.GetInstance(doc, Stream)
                    writer.CloseStream = False
                    Dim xmlworker = XMLWorkerHelper.GetInstance
                    doc.Open()
                    XMLWorkerHelper.GetInstance().ParseXHtml(writer, doc, html)
                    doc.Close()
                    writer.Close()
                    Stream.Close()
                    Response.ContentType = "application/pdf"
                    Response.AddHeader("Content-Disposition", String.Format("inline;filename={0}.pdf", "filename"))
                    Response.BufferOutput = False
                    Response.BinaryWrite(Stream.ToArray())
                    Response.Flush()
                    Response.Close()
                    Response.End()
                End Using
            End Using
        End Using

代码2

        Dim Document As New iTextSharp.text.Document(PageSize.A4, 10, 10, 10, 10)
        Dim PdfWriter As PdfWriter = PdfWriter.GetInstance(Document, New FileStream("C:/Test/Jan15.pdf", FileMode.Create))
        Dim HtmlContext As New HtmlPipelineContext(Nothing)
        HtmlContext.SetTagFactory(iTextSharp.tool.xml.html.Tags.GetHtmlTagProcessorFactory)
        Dim CSSResolver As ICSSResolver = XMLWorkerHelper.GetInstance().GetDefaultCssResolver(True)
        '--- The location of the external CSS file
        Dim BCMiCss As String = HttpContext.Current.Server.MapPath("~/style/style12.css")
        '--- Add the external CSS file        
        CSSResolver.AddCssFile(BCMiCss, True)
        Dim Pipeline As IPipeline = New CssResolverPipeline(CSSResolver, New HtmlPipeline(HtmlContext, New PdfWriterPipeline(Document, PdfWriter)))
        Dim Worker As XMLWorker = New XMLWorker(Pipeline, True)
        Dim Parser As XMLParser = New XMLParser(True, Worker)
        Parser.Parse(New StringReader(sb.ToString))
        Parser.Flush()

代码2不使用外部文件。我尝试在字符串生成器“sb”中添加样式标记。没有任何效果。

        sb.Append("<style type=""text/css"">")
        sb.Append("body {margin: 0;font-family: Arial;font-size: 10px;}")
        sb.Append("table {border-collapse: collapse;font-size: 13px; font-weight:bold; width:100%; border-color:black;}")
        sb.Append(".NoTableTop{border-top:none;}")
        sb.Append("tr.NoTop td{border-top:none;}")
        sb.Append("tr.NoBot td {border-bottom-color:white;}")
        sb.Append("</style>")

我坚持这份报告。

ItextSharp - 无法打开此文件。文件的格式存在问题

0 个答案: