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ATOM和RSS的区别
发布时间：2017-08-11　浏览：562次
　　
    简单来说：ATOM是RSS2.0的改进方案，因为RSS2.0的标准已经冻结，所以才出了ATOM。主要改进是ATOM可以通过标签识别一个内容是否是全文输出而RSS2.0不可以。同时，ATOM不仅能够判断出内容是否是全文输出，在终端软件使用该FEED时，还可以从中得到那一部分是“摘要”那一部分是“全文”方便进行区别显示。

Element Comparison Table

Atom 1.0 defines 21 elements; RSS 2.0, 30. Most of the RSS 2.0 elements missing in Atom 1.0 are either those that were never widely implemented in practice, or the capabilities are provided in other ways.

RSS 2.0 Atom 1.0 Comments
rss - Vestigial in RSS
channel feed
title title
link link Atom defines an extensible family of rel values
description subtitle
language - Atom uses standard xml:lang attribute
copyright rights
webMaster -
managingEditor author or contributor
pubDate published (in entry) Atom has no feed-level equivalent
lastBuildDate (in channel) updated RSS has no item-level equivalent
category category
generator generator
docs -
cloud -
ttl - <ttl> is problematic, prefer HTTP 1.1 cache control
image logo Atom recommends 2:1 aspect ratio
- icon As in favicon.ico
rating -
textInput -
skipHours -
skipDays -
item entry
author author
- contributor
description summary and/or content depending on whether full content is provided
comments -
enclosure - rel="enclosure" on <link> in Atom
guid id
source - rel="via" on <link> in Atom
- source Container for feed-level metadata to support aggregation

Sample RSS and Atom Feeds

RSS 2.0

<?xml version="1.0" encoding="utf-8"?> <rss version="2.0"> <channel> <title>Example Feed</title> <description>Insert witty or insightful remark here</description> <link>http://example.org/</link> <lastBuildDate>Sat, 13 Dec 2003 18:30:02 GMT</lastBuildDate> <managingEditor>johndoe@example.com (John Doe)</managingEditor> <item> <title>Atom-Powered Robots Run Amok</title> <link>http://example.org/2003/12/13/atom03</link> <guid isPermaLink="false">urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</guid> <pubDate>Sat, 13 Dec 2003 18:30:02 GMT</pubDate> <description>Some text.</description> </item> </channel> </rss>

Atom 1.0

<?xml version="1.0" encoding="utf-8"?> <feed xmlns="http://www.w3.org/2005/Atom"> <title>Example Feed</title> <subtitle>Insert witty or insightful remark here</subtitle> <link href="http://example.org/"/> <updated>2003-12-13T18:30:02Z</updated> <author> <name>John Doe</name> <email>johndoe@example.com</email> </author> <id>urn:uuid:60a76c80-d399-11d9-b93C-0003939e0af6</id> <entry> <title>Atom-Powered Robots Run Amok</title> <link href="http://example.org/2003/12/13/atom03"/> <id>urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</id> <updated>2003-12-13T18:30:02Z</updated> <summary>Some text.</summary> </entry> </feed>
 
 
　　　　
 
 
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