使用Rome实现网站RSS发布的简单步骤

使用Rome实现网站RSS发布的简单步骤     

<% @ page language = " java "  contentType = " text/html; charset=UTF-8 "  pageEncoding = " UTF-8 " %>
<% @include file = " package.inc.jsp " %>
<% @page  import = " org.jdom.*,com.sun.syndication.feed.synd.*,com.sun.syndication.io.SyndFeedOutput " %>
<%
   int  maxLength  =   500 ;
  out.clearBuffer();
  SyndFeed feed  =   new  SyndFeedImpl();
  feed.setFeedType( " rss_2.0 " );
  feed.setTitle( " Java世纪网，Enjoy Java， Enjoy Everyday " );
  feed.setLink( " http://www.java2000.net " );
  feed.setDescription( " Java世纪网的最新的50个帖子列表 " );
  feed.setEncoding( " UTF-8 " );  
  /**/ /* 
  Document doc = feed.outputJDom(feed.createWireFeed());
  //create the XSL processing instruction
  Map xsl = new HashMap();
  xsl.put("href", "http://feeds.feedburner.com/~d/styles/rss2full.xsl");
  xsl.put("type", "text/xsl");
  xsl.put("media", "screen");
  ProcessingInstruction pXsl = new ProcessingInstruction("xml-stylesheet", xsl);
  doc.addContent(0, pXsl);
  //create the CSS processing instruction
  Map css = new HashMap();
  css.put("href", "http://feeds.feedburner.com/~d/styles/itemcontent.css");
  css.put("type", "text/css");
  css.put("media", "screen");
  ProcessingInstruction pCss = new ProcessingInstruction("xml-stylesheet", css);  
  doc.addContent(1, pCss);  
  */
  
  List < SyndEntry >  entries  =   new  ArrayList < SyndEntry > ();
  SyndEntry entry;
  SyndContent description;
  PostService ps  =  (PostService) Factory.getBean( " PostService " );
  Collection < Post >  pList  =  ps.findAll( - 1 ,  0 ,  50 );
   for  (Post p : pList)  ... {
    entry = new SyndEntryImpl();
    entry.setTitle(p.getUser().getUsername()+"("+p.getUser().getNickName()+")"+(p.getIdParent()==0?"发表了":"回复了")+":"+p.getSubject());
    entry.setLink("http://www.java2000.net/viewthread.jsp?tid=" + p.getId() + "");
    entry.setPublishedDate(p.getDatetime());
    description = new SyndContentImpl();
    description.setType("text/html");
    if(p.getContent().length()>maxLength)...{
      description.setValue(p.getContent().substring(0,maxLength)+"<br/><br/>【内容太长,只显示了前"+maxLength+"字，更多内容请看全文】");
    }else...{
      description.setValue(p.getContent());
    }
    entry.setDescription(description);
    entries.add(entry);
  }
  feed.setEntries(entries);
   try   ... {
    SyndFeedOutput output = new SyndFeedOutput();
    out.print(output.outputString(feed));
  }   catch  (Exception ex)  ... {
    ex.printStackTrace();
  }