转换HTML Contenttpo Word文档时出现错误
作者：互联网
您好,我正在使用HTml Agility和Openxml将我的html内容转换为word文件内容.
<div>
<div id="container">
<div>
<div>
<!--content starts here//-->
<form name="questions" method="post">
<img src="../../content/0/Static UPload/Divya_3LevelLeftMenu_Operating System v8.0 English/unit9/lesson27/../../images/less_title_27.jpg" width="750" height="75">
<div id="title">Exercise
<table border="0" cellspacing="20" cellpadding="0">
<tr>
<td><b> Student's Name: </b><br>
<input type="text" name="b1" size="45"></td>
<td><b>Class:</b><br>
<input type="text" name="b2" size="45"></td>
</tr>
</table>
<td width="176" align="left"> </td>
<tr><td width="779" align="left"> </td>
</tr>
<ol>
<li>Describe the purpose of Windows Update.
<p align="left"><textarea name="a1" rows="10" wrap="VIRTUAL" cols="55"></textarea></p>
</li>
</ol>
<ol start="2">
<li>Explain why using Windows Update is critical to maintaining an operating system.
<p align="left"><textarea name="a2" rows="10" wrap="VIRTUAL" cols="55"></textarea></p>
</li>
</ol>
<ol start="3">
<li>Summarize the process used to access and install Windows Updates.
<p align="left"><textarea name="a3" rows="10" wrap="VIRTUAL" cols="55"></textarea></p>
</li>
</ol>
<ol start="4">
<li>Compare and contrast using Windows Update and using a Windows Service Pack.
<p align="left"><textarea name="a4" rows="10" wrap="VIRTUAL" cols="55"></textarea></p>
</li>
</ol>
<center><p><b>Note: You must print your completed exercise
to submit to your instructor.</b><br>
<b class="style1"><u>Do Not</u></b> close this window without printing your exercise or your answers will be lost.<br><br>
<input onclick="reLoadMe(document.questions) " type="button" value="Print Preview">
</p>
</center>
</form>
<div align="center"><a href="#top"><img src="../../content/0/Static UPload/Divya_3LevelLeftMenu_Operating System v8.0 English/unit9/lesson27/../../images/back_to_top.jpg" alt="" width="40" height="21" border="0"></a>
</div></div></div></div></div></div>
这是我用来转换的html内容.
但是我在解析它时遇到以下错误.
at NotesFor.HtmlToOpenXml.TableContext.get_CurrentTable()
at NotesFor.HtmlToOpenXml.HtmlConverter.ProcessTableColumn(HtmlEnumerator en)
at NotesFor.HtmlToOpenXml.HtmlConverter.ProcessHtmlChunks(HtmlEnumerator en, String endTag)
at NotesFor.HtmlToOpenXml.HtmlConverter.Parse(String html)
at WebApplication3.WebForm3.Button1_Click(Object sender, EventArgs e) in C:\Users\USER\Documents\Visual Studio 2008\Projects\Piyush_training\WebApplication3\WebForm3.aspx.cs:line 102
我的代码如下.
using DocumentFormat.OpenXml.Drawing;
using NotesFor.HtmlToOpenXml;
using System.IO;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;
using wp = DocumentFormat.OpenXml.Drawing.Wordprocessing;
using DocumentFormat.OpenXml;
using HtmlAgilityPack;
using System.Text;
protected void Button1_Click(object sender, EventArgs e)
{
const string filename = "C:/Temp/test.docx";
Response.ContentEncoding = System.Text.Encoding.UTF7;
System.Text.StringBuilder SB = new System.Text.StringBuilder();
System.IO.StringWriter SW = new System.IO.StringWriter();
字符串pagecontent =以上html内容；
HtmlAgilityPack.HtmlDocument doc =新的HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(pagecontent);
如果(doc == null);
doc.OptionCheckSyntax = true;
doc.OptionAutoCloseOnEnd = true;
doc.OptionFixNestedTags = true;
int errorCount = doc.ParseErrors.Count();
字符串输出=“”;
doc.Save(SW);
System.Web.UI.HtmlTextWriter htmlTW = new System.Web.UI.HtmlTextWriter(SW);
strBody = "<html>" + "<body>" + "<div><b>" + htmlTW.InnerWriter.ToString() + "</b></div>" + "</body>" + "</html>";
string html = strBody;
try
{
using (MemoryStream generatedDocument = new MemoryStream())
{
using (WordprocessingDocument package = WordprocessingDocument.Create(generatedDocument, WordprocessingDocumentType.Document))
{
MainDocumentPart mainPart = package.MainDocumentPart;
if (mainPart == null)
{
mainPart = package.AddMainDocumentPart();
new Document(new Body()).Save(mainPart);
}
HtmlConverter converter = new HtmlConverter(mainPart);
converter.ExcludeLinkAnchor = true;
converter.RefreshStyles();
converter.ImageProcessing = ImageProcessing.AutomaticDownload;
Body body = mainPart.Document.Body;
converter.ConsiderDivAsParagraph = false;
var paragraphs = converter.Parse(html);
for (int i = 0; i < paragraphs.Count; i++)
{
body.Append(paragraphs[i]);
}
mainPart.Document.Save();
}
File.WriteAllBytes(filename, generatedDocument.ToArray());
}
System.Diagnostics.Process.Start(filename);
}
catch (Exception ex)
{
Response.Write(ex.ToString());
}
}
解决方法:
使用此文件获取具有内容的图像第一个文件将创建一个.docx文件,下一个文件将在其中附加HTML文档.
要使用AltChunk方法,您必须使用创建的文件来创建文件动态地首先使用默认内容创建文件,因为altChunk不接受空白文件.
1.创建一个内容较小的.docx文件.
2.在默认内容后附加html内容.
try
{strBody = "<html>" + "<body>" + "<div> Word File </div>" + "</body>" + "</html>";
using (MemoryStream generatedDocument = new MemoryStream())
{
using (WordprocessingDocument package = WordprocessingDocument.Create(generatedDocument, WordprocessingDocumentType.Document))
{
MainDocumentPart mainPart = package.MainDocumentPart;
if (mainPart == null)
{
mainPart = package.AddMainDocumentPart();
new Document(new Body()).Save(mainPart);
}
HtmlConverter converter = new HtmlConverter(mainPart);
converter.ExcludeLinkAnchor = true;
converter.RefreshStyles();
converter.ImageProcessing = ImageProcessing.AutomaticDownload;
converter.BaseImageUrl = new Uri(domainNameURL + "Images/");
Body body = mainPart.Document.Body;
converter.ConsiderDivAsParagraph = false;
var paragraphs = converter.Parse({strBody);
for (int i = 0; i < paragraphs.Count; i++)
{
body.Append(paragraphs[i]);
}
mainPart.Document.Save();
}
File.WriteAllBytes(filename, generatedDocument.ToArray());
}
using (WordprocessingDocument myDoc = WordprocessingDocument.Open(filename, true))
{
XNamespace w =
"http://schemas.openxmlformats.org/wordprocessingml/2006/main";
XNamespace r =
"http://schemas.openxmlformats.org/officeDocument/2006/relationships";
string altChunkId = "AltChunkId1";
MainDocumentPart mainPart = myDoc.MainDocumentPart;
AlternativeFormatImportPart chunk = mainPart.AddAlternativeFormatImportPart("application/xhtml+xml", altChunkId);
using (Stream chunkStream = chunk.GetStream(FileMode.Create, FileAccess.Write))
using (StreamWriter stringStream = new StreamWriter(chunkStream))
stringStream.Write(html);
XElement altChunk = new XElement(w + "altChunk",
new XAttribute(r + "id", altChunkId)
);
XDocument mainDocumentXDoc = GetXDocument(myDoc);
mainDocumentXDoc.Root
.Element(w + "body")
.Elements(w + "p")
.Last()
.AddAfterSelf(altChunk);
SaveXDocument(myDoc, mainDocumentXDoc);
}
System.Diagnostics.Process.Start(filename);
}
catch (Exception ex)
{
Response.Write(ex.ToString());
}
标签：openxml,asp-net,c 来源： https://codeday.me/bug/20191202/2087049.html