我想问一下如何转换MS Word文档的页眉/页脚部分（doc / docx） 到HTML。 我打开文档就像：
using (WordprocessingDocument wDoc = WordprocessingDocument.Open(memoryStream, true))
a.k.a OpenXML
我正在使用WmlToHtmlConverter转换文档，该文档将文档转换为优秀，但页眉和页脚是跳过的，因为hz标准不支持分页。我想知道我怎么能得到它们并将它们提取为html。
我试着让他们像：
using (WordprocessingDocument wdDoc = WordprocessingDocument.Open(mainFileMemoryStream, true))
{
Document mainPart = wdDoc.MainDocumentPart.Document;
DocumentFormat.OpenXml.Packaging.HeaderPart firstHeader =
wdDoc.MainDocumentPart.HeaderParts.FirstOrDefault();
if (firstHeader != null)
{
using (var headerStream = firstHeader.GetStream())
{
return headerStream.ReadFully();
}
}
return null;
}
然后将其传递给转换函数，但我得到例外情况：
文件包含损坏的数据，堆栈跟踪：
at System.IO.Packaging.ZipPackage..ctor(Stream s, FileMode packageFileMode, FileAccess packageFileAccess)
at System.IO.Packaging.Package.Open(Stream stream, FileMode packageMode, FileAccess packageAccess)
at DocumentFormat.OpenXml.Packaging.OpenXmlPackage.OpenCore(Stream stream, Boolean readWriteMode)
at DocumentFormat.OpenXml.Packaging.WordprocessingDocument.Open(Stream stream, Boolean isEditable, OpenSettings openSettings)
at DocumentFormat.OpenXml.Packaging.WordprocessingDocument.Open(Stream stream, Boolean isEditable)
at DocxToHTML.Converter.HTMLConverter.ParseDOCX(Byte[] fileInfo, String fileName) in D:\eTemida\eTemida.Web\DocxToHTML.Converter\HTMLConverter.cs:line 96
任何帮助将不胜感激
答案 0 :(得分：1)
很多斗争让我得到了以下解决方案：
我创建了一个函数，用于将docx文档的字节数组转换为Html As Follows
public string ConvertToHtml(byte[] fileInfo, string fileName = "Default.docx")
{
if (string.IsNullOrEmpty(fileName) || Path.GetExtension(fileName) != ".docx")
return "Unsupported format";
//FileInfo fileInfo = new FileInfo(fullFilePath);
string htmlText = string.Empty;
try
{
htmlText = ParseDOCX(fileInfo, fileName);
}
catch (OpenXmlPackageException e)
{
if (e.ToString().Contains("Invalid Hyperlink"))
{
using (MemoryStream fs = new MemoryStream(fileInfo))
{
UriFixer.FixInvalidUri(fs, brokenUri => FixUri(brokenUri));
}
htmlText = ParseDOCX(fileInfo, fileName);
}
}
return htmlText;
}
ParseDOCX完成所有转换。 ParseDOCX的代码：
private string ParseDOCX(byte[] fileInfo, string fileName)
{
try
{
//byte[] byteArray = File.ReadAllBytes(fileInfo.FullName);
using (MemoryStream memoryStream = new MemoryStream())
{
memoryStream.Write(fileInfo, 0, fileInfo.Length);
using (WordprocessingDocument wDoc = WordprocessingDocument.Open(memoryStream, true))
{
int imageCounter = 0;
var pageTitle = fileName;
var part = wDoc.CoreFilePropertiesPart;
if (part != null)
pageTitle = (string)part.GetXDocument().Descendants(DC.title).FirstOrDefault() ?? fileName;
WmlToHtmlConverterSettings settings = new WmlToHtmlConverterSettings()
{
AdditionalCss = "body { margin: 1cm auto; max-width: 20cm; padding: 0; }",
PageTitle = pageTitle,
FabricateCssClasses = true,
CssClassPrefix = "pt-",
RestrictToSupportedLanguages = false,
RestrictToSupportedNumberingFormats = false,
ImageHandler = imageInfo =>
{
++imageCounter;
string extension = imageInfo.ContentType.Split('/')[1].ToLower();
ImageFormat imageFormat = null;
if (extension == "png") imageFormat = ImageFormat.Png;
else if (extension == "gif") imageFormat = ImageFormat.Gif;
else if (extension == "bmp") imageFormat = ImageFormat.Bmp;
else if (extension == "jpeg") imageFormat = ImageFormat.Jpeg;
else if (extension == "tiff")
{
extension = "gif";
imageFormat = ImageFormat.Gif;
}
else if (extension == "x-wmf")
{
extension = "wmf";
imageFormat = ImageFormat.Wmf;
}
if (imageFormat == null)
return null;
string base64 = null;
try
{
using (MemoryStream ms = new MemoryStream())
{
imageInfo.Bitmap.Save(ms, imageFormat);
var ba = ms.ToArray();
base64 = System.Convert.ToBase64String(ba);
}
}
catch (System.Runtime.InteropServices.ExternalException)
{ return null; }
ImageFormat format = imageInfo.Bitmap.RawFormat;
ImageCodecInfo codec = ImageCodecInfo.GetImageDecoders().First(c => c.FormatID == format.Guid);
string mimeType = codec.MimeType;
string imageSource = string.Format("data:{0};base64,{1}", mimeType, base64);
XElement img = new XElement(Xhtml.img,
new XAttribute(NoNamespace.src, imageSource),
imageInfo.ImgStyleAttribute,
imageInfo.AltText != null ?
new XAttribute(NoNamespace.alt, imageInfo.AltText) : null);
return img;
}
};
XElement htmlElement = WmlToHtmlConverter.ConvertToHtml(wDoc, settings);
var html = new XDocument(new XDocumentType("html", null, null, null), htmlElement);
var htmlString = html.ToString(SaveOptions.DisableFormatting);
return htmlString;
}
}
}
catch (Exception)
{
return "File contains corrupt data";
}
}
到目前为止，一切看起来都很简单但后来我意识到文档的页眉和页脚只是跳过，所以我不得不以某种方式转换它们。
我尝试使用HeaderPart的GetStream()方法，但当然异常是throw，因为Header树与Document的不同。
然后我决定使用openXML的WordprocessingDocument headerDoc = WordprocessingDocument.Create(headerStream,Document)将Header和Footer作为新文档提取（很难用这个），但不幸的是，这个文档的转换也是不可能的，因为这只是创建一个普通的docx文档没有任何设置，样式，webSettings等。这花了很多时间来搞清楚。
最后，我决定通过Cathal的DocX Library创建一个新的文档，它终于来了。守则如下：
public string ConvertHeaderToHtml(HeaderPart header)
{
using (MemoryStream headerStream = new MemoryStream())
{
//Cathal's Docx Create
var newDocument = Novacode.DocX.Create(headerStream);
newDocument.Save();
using (WordprocessingDocument headerDoc = WordprocessingDocument.Open(headerStream,true))
{
var headerParagraphs = new List<OpenXmlElement>(header.Header.Elements());
var mainPart = headerDoc.MainDocumentPart;
//Cloning the List is necesery because it will throw exception for the reason
// that you are working with refferences of the Elements
mainPart.Document.Body.Append(headerParagraphs.Select(h => (OpenXmlElement)h.Clone()).ToList());
//Copies the Header RelationShips as Document's
foreach (IdPartPair parts in header.Parts)
{
//Very important second parameter of AddPart, if not set the relationship ID is being changed
// and the wordDocument pictures, etc. wont show
mainPart.AddPart(parts.OpenXmlPart,parts.RelationshipId);
}
headerDoc.MainDocumentPart.Document.Save();
headerDoc.Save();
headerDoc.Close();
}
return ConvertToHtml(headerStream.ToArray());
}
}
这就是Header。我正在通过HeaderPart并获得其Header然后是Elements。提取关系，如果标题中包含图像，则非常重要，并将其导入文档本身并且文档已准备好进行转换。
使用相同的步骤从页脚生成Html。
希望这将有助于一些人的职责。