java​/rss4j

# cd /usr/local/arch
# wget http://www.churchillobjects.com/soft/rss4j/rss4j092.jar
# cd ../src
# jar xvf ../arch/rss4j092.jar
# cp rss4j092/lib/rss4j.jar /home/test/WEB-INF/lib
# cd /home/test/src/com/domain/test
# vi RssTest.java

package com.domain.test;
import java.net.URL;
import java.util.Enumeration;
import churchillobjects.rss4j.RssChannel;
import churchillobjects.rss4j.RssChannelItem;
import churchillobjects.rss4j.RssDocument;
import churchillobjects.rss4j.parser.RssParser;
public class RssTest{
  public static void main(String args[])
   throws Exception{
    String url=null;
    try{
      if(args[0]!=null)url=args[0];
      URL u=new URL(url);
      RssDocument rss=RssParser.parseRss(u.openConnection().getInputStream());
      Enumeration e=rss.channels();
      while(e.hasMoreElements()){
        RssChannel rc=(RssChannel)e.nextElement();
        Enumeration items=rc.items();
        System.out.println(rc.getChannelTitle());
        System.out.println(rc.getChannelLink());
        System.out.println(rc.getChannelDescription());
        while(items.hasMoreElements()){
          RssChannelItem item=(RssChannelItem)items.nextElement();
          System.out.println(item.getItemTitle());
          System.out.println(item.getItemLink());
          System.out.println(item.getItemDescription());
        }
      }
    }
    catch(Exception e){
      e.printStackTrace();
    }
  }
}

# java com.domain.test.RssTest \
> http://news.goo.ne.jp/news/rss/topics/chumoku/index.rdf