XMLWorker：找到无效的嵌套标记div，预计结束标记img

问题描述：

我只是想使用XMLWorker将图像添加到我的PDF文档中。但由于某种原因，它想要一个密切的img标签。但即使我把它放在它仍然失败。XMLWorker：找到无效的嵌套标记div，预计结束标记img

C＃代码

 Byte[] bytes; 
     using (var ms = new MemoryStream()) 
     { 
      using (var doc = new Document(PageSize.A4.Rotate())) 
      { 
       using (var writer = PdfWriter.GetInstance(doc, ms)) 
       { 

        //Open the document for writing 
        doc.Open(); 

        //Our HTML and CSS 

        string exampleHtml = @"<div style='position: relative; width: 100%'>" + 

               "<img src='/Content/images/certificate.jpg'><img>" + 

               "<div style='position: absolute; top: 100px; left: 100px; width: 800px; height: 550px; text-align: center;'>" + 
               "<h1>" + 
               "<img src='/Content/images/CertTitle.png' alt='CERTIFICATE PDF' style='width: 800px;'/>" + 
               "</h1>" + 


               "<p>" + 
               "The School certifies that<br/>" + 

               "<h2>FIRSTNAME LAST NAME TITLE</h2>" + 

               "has participated in the class titled<br />" + 

               "<h2>COURSCODE - COURSENAME</h2>" + 


               "This activity was designated for # Credit(s)&trade;" + 

               "</p>" + 




               "<div style='float: left; position: absolute; bottom: 50px;'>" + 
               "<i>Date issued: DATE<br/></i><img src='Content/images/ceo-signature.jpg' style='border-bottom: solid #000 1px;'>" + 
               "</div>" + 
               "</div>" + 

               "</div>"; 

        using (var srHtml = new StringReader(exampleHtml)) 
        { 

         //Parse the HTML 
         iTextSharp.tool.xml.XMLWorkerHelper.GetInstance().ParseXHtml(writer, doc, srHtml); //right here is where it crashes ({"Invalid nested tag div found, expected closing tag img."} {"The document has no pages."} 
        } 


        doc.Close(); 
       } 
      } 

      bytes = ms.ToArray(); 
     } 

     var testFile = HttpContext.Server.MapPath("~/Content/documents/UserCertificates/test.pdf"); ; 
     System.IO.File.WriteAllBytes(testFile, bytes); 

     Response.AddHeader("Content-Disposition", "inline; filename=test.pdf"); 
     return File(testFile, "application/pdf");

我从来没有使用结束的img标签，所以我很好奇，如果我在这里做什么了吗？

XMLWorker适用于XML。虽然HTML支持未封闭的标签（如'img'标签），但这不是有效的XML。您必须确保使用方法来确保您的“HTML”有效。这将是没有什么不同，你的“br”标签，虽然它可能在HTML中作为
，它会打破作为无效的XML。 –

答

据我所知img标签是这样< img src="" />

，但你写这样的< img src="" >< img>

答

您的图片标签没有被正确关闭。要正确执行此操作，您需要将<img src='...'><img>更改为<img src='...'/>或<img src='...'></img>。

请参阅How to close tag properly answer by M. Rabe

XMLWorker：找到无效的嵌套标记div，预计结束标记img

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