有效的RSS 2.0使用罗马

JR *_*lia 7 java xml rss rome

我正在使用rome 1.0为我的java应用程序生成RSS.

在我的java中:

    SyndFeed feed = new SyndFeedImpl();
    feed.setFeedType( "rss_2.0" );
    feed.setTitle( "My Site" );
    feed.setLink( "http://example.com" );
    feed.setDescription( "Test Site." );    

    List<SyndEntry> entries = new ArrayList<SyndEntry>();
    SyndEntry entry = null;
    SyndContent description = null;

    entry = new SyndEntryImpl();
    entry.setTitle( "Entry1" );
    entry.setLink( "http://example.com/entry1" );
    entry.setPublishedDate( new Date() );

    description = new SyndContentImpl();
    description.setType("text/html");
    description.setValue( "This is the content of entry 1." );
    entry.setDescription( description );

    entries.add( entry );
    feed.setEntries(entries);

    Writer writer = new FileWriter("/home/jr/Desktop/stream.xml");
    SyndFeedOutput output = new SyndFeedOutput();
    output.output(feed,writer);
    writer.close();
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生成的RSS:

<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:dc="http://purl.org/dc/elements/1.1/" version="2.0">
  <channel>
    <title>My Site</title>
    <link>http://example.com</link>
    <description>Test Site.</description>
    <item>
      <title>Entry1</title>
      <link>http://example.com/entry1</link>
      <description>This is the content of entry 1.</description>
      <pubDate>Fri, 09 Nov 2012 01:28:57 GMT</pubDate>
      <guid>http://example.com/entry1</guid>
      <dc:date>2012-11-09T01:28:57Z</dc:date>
    </item>
  </channel>
</rss>
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此处验证RSS时,它具有以下建议:

  • 项目不应包括pubDate和dc:date
  • 缺少原子:与rel ="self"链接

如何在罗马图书馆做推荐?生成的RSS好吗?

谢谢.

jos*_*ain 1

发生这种情况是因为SyndFeedImpl日期和publishedDate字段使用相同的字段(来自DC模块):

@Override
public Date getPublishedDate() {
    return getDCModule().getDate();
}

@Override
public void setPublishedDate(final Date publishedDate) {
    getDCModule().setDate(publishedDate);
}
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由于RSS093Generator(由 所使用RSS20Generator)从指定项创建 pubDate 元素,而且还继承自 DCModuleGenerator,因此您会得到以下两个结果:

final Date pubDate = item.getPubDate();
        if (pubDate != null) {
            eItem.addContent(generateSimpleElement("pubDate", DateParser.formatRFC822(pubDate, Locale.US)));
        }
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和这个:

final Date dcDate = dcModule.getDate();
if (dcDate != null) {
    for (final Date date : dcModule.getDates()) {
        element.addContent(generateSimpleElement("date", DateParser.formatW3CDateTime(date, Locale.US)));
    }
}
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SyndFeed可以通过实施您自己的自定义来防止这种交互。在这种情况下,您需要做的就是创建一个类变量来存储您的 pubDate,以便DCModule永远不会获得日期集,因此永远不会生成不需要的dc:date元素。

我遇到了完全相同的问题并通过使用以下SyndFeed实现解决了它:

public class CustomSyndFeed extends SyndFeedImpl {

    protected Date publishedDate;

    @Override
    public Date getPublishedDate() {
        return publishedDate;
    }

    @Override
    public void setPublishedDate(final Date publishedDate) {
        this.publishedDate = new Date(publishedDate.getTime());
    }
}
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