“超链接中的嵌入式URI无效”打开word文档C＃时 [英] "Invalid embedded URI in hyperlink" when opening a word document C#
问题描述
您好，
我有一个使用WordprocessingDocument.Open（document，bool）打开word文档的应用程序。实现是正确的，因为它已经使用几个word doc文件工作了一段时间。由于word文档中的
电子邮件超链接无效，我遇到了文件无法打开的问题 在"@"处停止符号（" emailstuff @"）。应用程序在数百甚至数千个word文档中搜索字符串，因此我希望处理该文件并且
只是跳过或忽略所有超链接以防止此问题导致文件失败，因为超链接永远不会已触及应用程序。 是否有现成的解决方法？
I have an application that opens a word document using WordprocessingDocument.Open(document,bool). The implementation is correct as it's been working for a while with several word doc files. I ran across an issue where the file fails to open due to an invalid email hyperlink inside the word document that stops at the "@" symbol("emailstuff@"). The application searches for strings within hundreds and sometimes thousands of word documents, so I would like for the file to be processed and simply skip over or ignore all hyperlinks to prevent this issue from failing the file since the hyperlinks will never be touched with the application. Is there an existing workaround for this?
using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(document, true))
谢谢
推荐答案
您好
E_oregel，
我试图找到问题，我得到的信息是这是OpenXML中的一个已知问题。
I try to find the issue and I get the information that this is a known issue in OpenXML.
许多其他用户已经面临同样的问题过去的问题。
many other users already face the same kind of issue in past.
好的事情是Eric White为这个问题提供了一些解决方法。
good thing is Eric White provided some work around for the issue.
using System;
using System.Collections.Generic;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using System.Xml.Linq;
using DocumentFormat.OpenXml.Packaging;
class Program
{
static void Main(string[] args)
{
var fileName = @"..\..\..\Test.docx";
var newFileName = @"..\..\..\Fixed.docx";
var newFileInfo = new FileInfo(newFileName);
if (newFileInfo.Exists)
newFileInfo.Delete();
File.Copy(fileName, newFileName);
WordprocessingDocument wDoc;
try
{
using (wDoc = WordprocessingDocument.Open(newFileName, true))
{
ProcessDocument(wDoc);
}
}
catch (OpenXmlPackageException e)
{
if (e.ToString().Contains("Invalid Hyperlink"))
{
using (FileStream fs = new FileStream(newFileName, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
UriFixer.FixInvalidUri(fs, brokenUri => FixUri(brokenUri));
}
using (wDoc = WordprocessingDocument.Open(newFileName, true))
{
ProcessDocument(wDoc);
}
}
}
}
private static Uri FixUri(string brokenUri)
{
return new Uri("http://broken-link/");
}
private static void ProcessDocument(WordprocessingDocument wDoc)
{
var elementCount = wDoc.MainDocumentPart.Document.Descendants().Count();
Console.WriteLine(elementCount);
}
}
public static class UriFixer
{
public static void FixInvalidUri(Stream fs, Func<string, Uri> invalidUriHandler)
{
XNamespace relNs = "http://schemas.openxmlformats.org/package/2006/relationships";
using (ZipArchive za = new ZipArchive(fs, ZipArchiveMode.Update))
{
foreach (var entry in za.Entries.ToList())
{
if (!entry.Name.EndsWith(".rels"))
continue;
bool replaceEntry = false;
XDocument entryXDoc = null;
using (var entryStream = entry.Open())
{
try
{
entryXDoc = XDocument.Load(entryStream);
if (entryXDoc.Root != null && entryXDoc.Root.Name.Namespace == relNs)
{
var urisToCheck = entryXDoc
.Descendants(relNs + "Relationship")
.Where(r => r.Attribute("TargetMode") != null && (string)r.Attribute("TargetMode") == "External");
foreach (var rel in urisToCheck)
{
var target = (string)rel.Attribute("Target");
if (target != null)
{
try
{
Uri uri = new Uri(target);
}
catch (UriFormatException)
{
Uri newUri = invalidUriHandler(target);
rel.Attribute("Target").Value = newUri.ToString();
replaceEntry = true;
}
}
}
}
}
catch (XmlException)
{
continue;
}
}
if (replaceEntry)
{
var fullName = entry.FullName;
entry.Delete();
var newEntry = za.CreateEntry(fullName);
using (StreamWriter writer = new StreamWriter(newEntry.Open()))
using (XmlWriter xmlWriter = XmlWriter.Create(writer))
{
entryXDoc.WriteTo(xmlWriter);
}
}
}
}
}
}请参阅以下链接以获取有关此问题的详细信息。
please refer link below to get detailed information on this issue.
在Open XML SDK中处理无效的超链接（OpenXmlPackageException）
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