初用rome

Rome 是 java.net 上的一个开源项目,不仅包括各种syndication feeds的解析器与生成器,而且还包括能够把一种格式转换成另外一种格式的转换器。

 如下是我生成网站的rss的代码:

java 代码

// Rome中RSS的可选标准
// rss_0.90, rss_0.91, rss_0.92, rss_0.93, rss_0.94, rss_1.0, rss_2.0, atom_0.3
private static final String RSS_TYPE = "rss_2.0";
 // 取出频道下面的所有文章

 public ActionForward execute(ActionMapping mapping, ActionForm form,
   HttpServletRequest request, HttpServletResponse response)
   throws Exception {

     //  得到RSS数据操作接口
    RssDao rssDao = (RssDao)getBean(RssDao.class);

     Channel channel = "频道对象";

     List articles = "查询出来的所有频道文章";

     outputRssFeed(response, rssDao.createChannelFeed(channel, articles));

     return null;
    }



 // 将SyndFeed写入HttpServletResponse
    private boolean outputRssFeed(HttpServletResponse response, SyndFeed feed) {
        boolean result = false;
        feed.setFeedType(RSS_TYPE);
        response.setContentType(MIME_TYPE);
        SyndFeedOutput output = new SyndFeedOutput();
        try {
            output.output(feed, response.getWriter());
            result = true;
        } catch (IOException e) {
            e.printStackTrace();
        } catch (FeedException e) {
            e.printStackTrace();
        }
        return result;
    }



   //////rssDao的方法
  public SyndFeed createChannelFeed(Channel channel,List articles){
  SyndFeed feed = new SyndFeedImpl();

      // 设置RSS标题
        feed.setTitle(channel.getTitle() + "频道");

        // 设置标题的链接
        feed.setLink("http://*******");

        // 设置描述
        feed.setDescription(channel.getDescription());

        feed.setEntries(getChannelEntries(articles));

  return feed;
 }

 private List getChannelEntries(List articles) {
  List entries = new ArrayList();
        SyndEntry entry;
        SyndContent description;

        // 创建item集合
        for (ChannelArticle article : articles) {
            entry = new SyndEntryImpl();
            entry.setTitle(article.getTitle());
            entry.setLink("每篇文章的链接");
            entry.setPublishedDate(new Date());

            description = new SyndContentImpl();
            description.setType("text/html");
            description.setValue(article.getContent());

            entry.setDescription(description);

            entries.add(entry);
        }
        return entries;
 }