Java技术之使用JAVA Rss4j包制作RSS文件

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=下载：http://www.churchillobjects.com/soft/rss4j/rss4j092.jar
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=浏览：http://www.churchillobjects.com/c/13005.html
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=需求：http://xml.apache.org/xerces2-j/index.html
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安装:1解压 rss4j092包，获得rss4j.jar拷贝到{your wwwrooo}/WEB-INF/lib/
2解压在xerces2-j下的zip包，把里面的几个JAR文件拷贝到{your wwwrooo}/WEB-INF/lib/

Generating RSS

RssDocument doc = new RssDocument();
doc.setVersion(RssDocument.VERSION_10);

// create and add a new channel
RssChannel channel = new RssChannel();
channel.setChannelTitle("ChurchillObjects.com Features");
channel.setChannelLink("http://www.churchillobjects.com");
channel.setChannelDescription("Advanced Object-Oriented Developer Resource");
channel.setChannelUri("http://www.churchillobjects.com/rss/");
doc.addChannel(channel);

// create and add two items

RssChannelItem item1 = new RssChannelItem();
item1.setItemTitle("Networking Apps With Redenzvous");
item1.setItemLink("http://www.churchillobjects.com/c/11028.html");
item1.setItemDescription("Avoid the difficulties of internetworked applications with this fast, robust framework package.");
channel.addItem(item1);

RssChannelItem item2 = new RssChannelItem();
item2.setItemTitle("Secure Sockets with JSSE & OpenSSL");
item2.setItemLink("http://www.churchillobjects.com/c/11201.html");
item2.setItemDescription("Find out how to implement robust secure communnications between your clients and servers, including making your own certificate authority.");
channel.addItem(item2);

// create and add an image for the channel
RssChannelImage img = new RssChannelImage();
img.setImageLink("http://www.churchillobjects.com");
img.setImageUrl("http://www.churchillobjects.com/i/co.gif");
img.setImageTitle("ChurchillObjects.com");
channel.setChannelImage(img);

File file = new File("/opt/data/rss.xml");
try{
  RssGenerator.generateRss(doc, file);
  System.out.println("RSS file written.");
}
catch(RssGenerationException e){
  e.printStackTrace();
}

Parsing RSS

File file = new File("/opt/data/rss.xml");
try{
  RssDocument doc = RssParser.parseRss(file);
  System.out.println("RSS file parsed.");
}
catch(RssParseException e){
  e.printStackTrace();
}
Enumeration enum = doc.channels();
while(enum.hasMoreElements()){
  RssChannel channel = (RssChannel)enum.nextElement();
  System.out.println("Channel: "+channel.getChannelTitle());
  Enumeration items = channel.items();
  while(items.hasMoreElements()){
    RssChannelItem item = (RssChannelItem)items.nextElement();
    System.out.println("      Item: "+item.getItemTitle());
  }
}