How to generate xsi:schemalocation attribute correctly when generating a dynamic sitemap.xml with LINQ to XML?

匿名 (未验证) 提交于 2019-12-03 02:52:02

问题:

I am generating a dynamic sitemap.xml

According to sitemaps.org this is the header for a sitemap.xml

<?xml version='1.0' encoding='UTF-8'?> <urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"      xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"      xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">     <url>     ...     </url> </urlset> 

So I'm using LINQ To XML to generate the sitemap.xml

XNamespace ns = "http://www.sitemaps.org/schemas/sitemap/0.9"; return new XElement(ns + "urlset",     new XAttribute("xmlns", "http://www.sitemaps.org/schemas/sitemap/0.9"),     new XAttribute(XNamespace.Xmlns + "xsi", "http://www.w3.org/2001/XMLSchema-instance"),     //new XAttribute("xsi:schemaLocation", "http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"),     from node in new GetNodes()     select new XElement(ns + "url",         new XElement(ns + "loc", node.Loc),         new XElement(ns + "lastmod", node.LastMod),         new XElement(ns + "priority", node.Priority)     ) ).ToString(); 

The commented line is the one i cannot get right.
How can i set the "xsi:schemalocation" attribute?

Thanks.

回答1:

Ok, I got it right. Thanks to Mike Caron
If I declare the XAtrribute(XNamespace.Xmlns + "xsi",...) then it works

XNamespace ns = "http://www.sitemaps.org/schemas/sitemap/0.9";  XNamespace xsi = "http://www.w3.org/2001/XMLSchema-instance";  return new XElement(ns + "urlset",       new XAttribute("xmlns", "http://www.sitemaps.org/schemas/sitemap/0.9"),     new XAttribute(XNamespace.Xmlns + "xsi", "http://www.w3.org/2001/XMLSchema-instance"),     new XAttribute(xsi + "schemaLocation", "http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"),     from node in GetNodes()      select new XElement(ns + "url",          new XElement(ns + "loc", node.Loc),          new XElement(ns + "lastmod", node.LastMod),          new XElement(ns + "priority", node.Priority)      )  ).ToString();  


回答2:

I don't know LINQ to XML, but after a quick peek at the documentation, try this:

XNamespace ns = "http://www.sitemaps.org/schemas/sitemap/0.9"; XNamespace xsi = "http://www.w3.org/2001/XMLSchema-instance"; return new XElement(ns + "urlset",     new XAttribute(xsi + "schemaLocation", "http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"),     from node in new GetNodes()     select new XElement(ns + "url",         new XElement(ns + "loc", node.Loc),         new XElement(ns + "lastmod", node.LastMod),         new XElement(ns + "priority", node.Priority)     ) ).ToString(); 

Note that I'm not setting the xmlns attributes explicitly. I suspect they're generated automatically. Also, caveat emptor, since this is not tested.



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