RSS 中的 URL 编码链接会破坏链接

Question

为了获得有效的 XML RSS 提要，我需要对包含“&”的链接进行 url 编码在查询字符串中。但是，当用户在浏览器中查看 RSS 源时，链接不会被解码，因此当他们单击链接时，结果页面会被破坏，因为查询字符串参数没有被正确读取。

例如

http://www.mysite.com?foo1=bar1&foo2=bar2，在浏览器中查看时为 http://www.mysite.com?foo1=bar1%26foo2=bar2，参数 foo1 被视为 bar1%26foo2=bar2，而不是将水果和饮料分成两个单独的参数。

将我的链接包装在标签中而不对其进行编码是可行的，但是在我的 MRSS 提要中，我有一些字段，例如包含标签会破坏 XML。

我怎样才能正确编码我的链接以便一切正常？

Answer 1

简短答案

使用&amp

长答案

如果您查看https://stackoverflow.com/feeds/tag/xml，这个问题的条目看起来像这样，并且您的示例链接在 IE 中查看时工作正常

您的示例链接

http://www.mysite.com?foo1=bar1&foo2=bar2

您的条目

<entry>
        <id>https://stackoverflow.com/questions/5705246/url-encoded-links-in-rss-breaks-links</id>
        <re:rank scheme="http://stackoverflow.com">0</re:rank>
        <title type="text">URL encoded links in RSS breaks links</title>
        <category scheme="https://stackoverflow.com/feeds/tag/xml/tags" term="xml"/><category scheme="https://stackoverflow.com/feeds/tag/xml/tags" term="rss"/><category scheme="https://stackoverflow.com/feeds/tag/xml/tags" term="urlencode"/>
        <author>
            <name>Choy</name>
            <uri>https://stackoverflow.com/users/252529</uri>
        </author>
        <link rel="alternate" href="https://stackoverflow.com/questions/5705246/url-encoded-links-in-rss-breaks-links" />
        <published>2011-04-18T15:30:11Z</published>
        <updated>2011-04-18T15:35:43Z</updated>
        <summary type="html">
            <p>In order to have a valid XML RSS feed, I need to url encode my links which contain '&amp;' in the query string.  However, when a person views the RSS feed in a browser, the links are not decoded, so when they click on the link the resulting page is broken because the query string parameters are not being read correctly.</p>

<p>E.g.</p>

<p><a href="http://www.mysite.com?foo1=bar1&amp;foo2=bar2" rel="nofollow">http://www.mysite.com?foo1=bar1&amp;foo2=bar2</a>, when viewed in the browser as <a href="http://www.mysite.com?foo1=bar1%26foo2=bar2" rel="nofollow">http://www.mysite.com?foo1=bar1%26foo2=bar2</a>, the parameter foo1 is being taken as bar1%26foo2=bar2 instead of splitting fruit and drink into two separate parameters.</p>

<p>Wrapping my links in  tags and not encoding them work, but then in my MRSS feed I have fields such as  where including a  tag breaks the XML.</p>

<p>How can I go about correctly encoding my links so that everything works?</p>

        </summary>
    </entry>