風人園

Rome的兩種使用方法
所需jar包的下載 here，在這里可以找到與rome相關的所有文件

1、只使用rome
???
package com.ivo.rss;

import java.io.IOException;
import java.net.URL;
import java.util.Iterator;

import com.sun.syndication.feed.synd.SyndEntry;
import com.sun.syndication.feed.synd.SyndFeed;
import com.sun.syndication.io.FeedException;
import com.sun.syndication.io.SyndFeedInput;
import com.sun.syndication.io.XmlReader;
public class Feed {
??? public static void main(String[] args) throws Exception {

???????
??????? SyndFeedInput input = new SyndFeedInput();
??????? //System.out.println(warmedFeed);
??????? SyndFeed feed = input.build(new XmlReader(new URL(" http://rss.news.yahoo.com/rss/topstories ")));

??????? // Iterate through feed items, adding a footer each item
??????? Iterator entryIter = feed.getEntries().iterator();
??????? while (entryIter.hasNext()) {
??????????? SyndEntry entry = (SyndEntry) entryIter.next();
??????????? System.out.println(entry.getPublishedDate());
??????????? System.out.println(entry.getTitle());
??????????? //System.out.println(entry.getDescription());
??????????? //System.out.println(entry.getAuthor());
??????????? System.out.println(entry.getLink());
???????????
??????? }
??? }

}

2、使用rome+rome fetcher

package com.ivo.rss;

import java.net.URL;
import java.util.List;

import com.sun.syndication.feed.synd.SyndContent;
import com.sun.syndication.feed.synd.SyndEntry;
import com.sun.syndication.feed.synd.SyndFeed;
import com.sun.syndication.fetcher.FeedFetcher;
import com.sun.syndication.fetcher.impl.FeedFetcherCache;
import com.sun.syndication.fetcher.impl.HashMapFeedInfoCache;
import com.sun.syndication.fetcher.impl.HttpURLFeedFetcher;

public class RssReader {

??? public static void main(String[] args) throws Exception {
??????? FeedFetcherCache feedInfoCache = HashMapFeedInfoCache.getInstance();
??????? FeedFetcher feedFetcher = new HttpURLFeedFetcher(feedInfoCache);
??????? SyndFeed feed = feedFetcher.retrieveFeed(new URL(
??????????????? " http://feeds.feedburner.com/jscud "));
??????? List entryList = feed.getEntries();
??????? for (int i = 0; i < entryList.size(); i++) {
??????????? SyndEntry entry = (SyndEntry) entryList.get(i);
??????????? System.out.println("Published Date: "+entry.getPublishedDate());
??????????? System.out.println("Title: "+entry.getTitle());
??????????? System.out.println("Link: "+entry.getLink());
??????????? //System.out.println(entry.getDescription());
??????????? SyndContent sc = entry.getDescription();
??????????? System.out.println("Description: "+sc.getValue());
??????????? System.out.println("------------------------------");
??????? }
??? }
}

上面是使用了緩存的,也就是說更新才讀取,如果每次都讀取,則修改對應行為:

FeedFetcher feedFetcher = new HttpURLFeedFetcher();