无效的超链接:格式错误的URI作为超链接嵌入到文档中

问题描述

我在我的应用程序中使用OpenXml命名空间.我正在使用它来读取Excel文件中的XML.这在某些excel文件中可以正常使用，但在其他文件上却出现运行时错误，提示

I'm using the OpenXml namespace in my application. I'm using this to read the XML within an Excel file. This works fine with certain excel files but on others I get a run time error saying

我在下一行获得运行时间

I get the run time on the following line

using (var spreadsheet =
      DocumentFormat.OpenXml.Packaging.SpreadsheetDocument.Open(filePathCopy, true))

我不确定为什么它适用于某些Excel文件，而不适用于其他Excel文件.

I'm not sure why it works for some Excel files and doesn't work on others.

推荐答案

解决方案来自Eric White的博客文章.

1. 从Nuget导入OpenXmlPowerTools并使用它.

1. Import OpenXmlPowerTools from Nuget and use it.

using OpenXmlPowerTools;

功能OpenXmlPowerTools.UriFixer需要此功能，除非您要从链接复制功能.

This is needed for the function OpenXmlPowerTools.UriFixer, unless you want to copy the function from the link.

添加FixUri()函数以使用新定义的URI处理损坏的URI.

Add the FixUri() Function to handle the broken URI's with a new defined URI.

private static Uri FixUri(string brokenUri)
{
    return new Uri("http://broken-link/");
}

添加代码以打开文档，如果发生异常，它将修复URI并重新打开已修复的文档.

Add code to open the document, if the exception occurs it fixes the URI's and re-opens the fixed document.

WordprocessingDocument wDoc;
try
{
    using (wDoc = WordprocessingDocument.Open(newFileName, true))
    {
        //Try do something
    }
}
catch (OpenXmlPackageException e)
{
    if (e.ToString().Contains("Invalid Hyperlink"))
    {
        using (FileStream fs = new FileStream(newFileName, FileMode.OpenOrCreate, FileAccess.ReadWrite))
        {
            //Fix problematic URI's
            OpenXmlPowerTools.UriFixer.FixInvalidUri(fs, brokenUri => FixUri(brokenUri));
        }
        using (wDoc = WordprocessingDocument.Open(newFileName, true))
        {
            //Do something without error
        }
    }
}

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