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();
}
<%@ 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(); }