问题
I am pretty new to Umbraco but have managed to do alot of cool things in a short space of time. One thing that I simply cannot do is the RSS Feed! This seems to be the most difficult thing to do! I have been trying for days to get this damn thing working but it wont!
Ok, here's what i have done,
I went into XSLT Files, created a new RSS Feed document, then added the URL to the section in the site, i.e. News, which contains news files.
You can check my code down below.
Once I have created this XSLT, I go into the document types, create a new one, with a new master page, add the macro in, then create the page in the Content section.
When I do this I Get the following error:
ERROR:
This page contains the following errors:
error on line 3 at column 6: XML declaration allowed only at the start of the document
Below is a rendering of the page up to the first error.
Does anyone have any idea where I am going wrong? I have looked at the source and it looks like it's not looping through the directory files of News.
However when I add this macro to my home page, it shows errors, but when looking at the source I can see a load of lovely XML ?
What's going wrong on here ?
XSLT:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:rssdatehelper="urn:rssdatehelper"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:content="http://purl.org/rss/1.0/modules/content/"
xmlns:msxml="urn:schemas-microsoft-com:xslt"
xmlns:umbraco.library="urn:umbraco.library" xmlns:Exslt.ExsltCommon="urn:Exslt.ExsltCommon" xmlns:Exslt.ExsltDatesAndTimes="urn:Exslt.ExsltDatesAndTimes" xmlns:Exslt.ExsltMath="urn:Exslt.ExsltMath" xmlns:Exslt.ExsltRegularExpressions="urn:Exslt.ExsltRegularExpressions" xmlns:Exslt.ExsltStrings="urn:Exslt.ExsltStrings" xmlns:Exslt.ExsltSets="urn:Exslt.ExsltSets"
exclude-result-prefixes="msxml umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings Exslt.ExsltSets ">
<xsl:output method="xml" omit-xml-declaration="yes"/>
<xsl:param name="currentPage"/>
<!-- Update these variables to modify the feed -->
<xsl:variable name="RSSNoItems" select="string('10')"/>
<xsl:variable name="RSSTitle" select="string('My sample rss')"/>
<xsl:variable name="SiteURL" select="string('http://localhost:58281/news.aspx')"/>
<xsl:variable name="RSSDescription" select="string('Add your description here')"/>
<!-- This gets all news and events and orders by updateDate to use for the pubDate in RSS feed -->
<xsl:variable name="pubDate">
<xsl:for-each select="$currentPage/* [@isDoc]">
<xsl:sort select="@createDate" data-type="text" order="descending" />
<xsl:if test="position() = 1">
<xsl:value-of select="updateDate" />
</xsl:if>
</xsl:for-each>
</xsl:variable>
<xsl:template match="/">
<!-- change the mimetype for the current page to xml -->
<xsl:value-of select="umbraco.library:ChangeContentType('text/xml')"/>
<xsl:text disable-output-escaping="yes"><?xml version="1.0" encoding="UTF-8"?></xsl:text>
<rss version="2.0"
xmlns:content="http://purl.org/rss/1.0/modules/content/"
xmlns:wfw="http://wellformedweb.org/CommentAPI/"
xmlns:dc="http://purl.org/dc/elements/1.1/"
<channel>
<title>
<xsl:value-of select="$RSSTitle"/>
</title>
<link>
<xsl:value-of select="$SiteURL"/>
</link>
<pubDate>
<xsl:value-of select="$pubDate"/>
</pubDate>
<generator>umbraco</generator>
<description>
<xsl:value-of select="$RSSDescription"/>
</description>
<language>en</language>
<xsl:apply-templates select="$currentPage/* [@isDoc and string(umbracoNaviHide) != '1']">
<xsl:sort select="@createDate" order="descending" />
</xsl:apply-templates>
</channel>
</rss>
</xsl:template>
<xsl:template match="* [@isDoc]">
<xsl:if test="position() <= $RSSNoItems">
<item>
<title>
<xsl:value-of select="@nodeName"/>
</title>
<link>
<xsl:value-of select="$SiteURL"/>
<xsl:value-of select="umbraco.library:NiceUrl(@id)"/>
</link>
<pubDate>
<xsl:value-of select="umbraco.library:FormatDateTime(@createDate,'r')" />
</pubDate>
<guid>
<xsl:value-of select="$SiteURL"/>
<xsl:value-of select="umbraco.library:NiceUrl(@id)"/>
</guid>
<content:encoded>
<xsl:value-of select="concat('<![CDATA[ ', ./bodyText,']]>')" disable-output-escaping="yes"/>
</content:encoded>
</item>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
回答1:
By default, all user-created templates start off as Master Pages, which in turn inherit from a hidden Master Page called Default.master. This means all templates contain a <asp:Content> section, and if the XML declaration is not put immediately after the opening <asp:Content> tag then it would put an empty line at the top of the source code causing the error you've described.
I usually get around this problem by putting the XML declaration in the template (See line 2 below and scroll right) and leaving the macro to generate the rest of the XML content.
<%@ Master Language="C#" MasterPageFile="~/umbraco/masterpages/default.master" AutoEventWireup="true" %>
<asp:Content ContentPlaceHolderID="ContentPlaceHolderDefault" runat="server"><?xml version="1.0" encoding="UTF-8"?>
<umbraco:Macro Alias="MyRssFeed" runat="server" />
</asp:Content>
Alternatively, if you do wish to keep the XML declaration in the macro, just make sure in the template that the <umbraco:Macro> tag immediately follows the <asp:Content> tag without any white space or line breaks.
回答2:
If you are using razor, you can avoid this error by replacing the line break like this:
@inherits Umbraco.Web.Mvc.UmbracoTemplatePage
@{
Layout = null;
}<?xml version="1.0" encoding="UTF-8"?>
@{
umbraco.library.ChangeContentType("text/xml");
var siteURL = "http://" + Request.Url.Host.ToString();
var rssPage = CurrentPage.AncestorOrSelf(1).Rss.First();
var articles = CurrentPage.AncestorOrSelf(1).Descendants("Article").OrderBy("date desc");
}
<rss version="2.0">
<channel>
<title>@rssPage.title</title>
@Html.Raw("<link>")@siteURL@Html.Raw("</link>")
<description>@rssPage.description</description>
<pubDate>@String.Format("{0:ddd, dd MMM yyyy HH:mm:ss}", @rssPage.CreateDate)</pubDate>
<lastBuildDate>@String.Format("{0:ddd, dd MMM yyyy HH:mm:ss}", DateTime.Now)</lastBuildDate>
<language>en</language>
<generator>Umbraco</generator>
@foreach(var article in articles)
{
<item>
<title>@if(article.HasValue("title")){@article.title}else{@article.Name}</title>
@Html.Raw("<link>")@siteURL@article.Url@Html.Raw("</link>")
<description>@article.previewText</description>
<pubDate>@String.Format("{0:ddd, dd MMM yyyy} {1:HH:mm:ss}", @article.date, @article.CreateDate)</pubDate>
</item>
}
</channel>
</rss>
The key-part of this code snip is this line - ensure its not on the line below:
}<?xml version="1.0" encoding="UTF-8"?>
来源：https://stackoverflow.com/questions/8714609/umbraco-create-an-rss-feed-problems