给你的网站增加RSS功能

Jabber让我想像出聊天机器人 | 使用openfire+jwchat来构建类似于商务通的 ...

2007-08-21

关键字: RSS rome ZHAXIA GOOGLE

     呵呵,其实RSS很简单.因为他的代码量实在是不大,而且很容易理解,
    我经过反复的筛选和使用,认为使用rome是目前比较简捷而且高效的生成RSS的好工具.而我以前是使用freemarker来生成rss,但是生成的rss不标准,本文主要是实践为主,列举出实际代码.
    首先下载最新的rome版本,[url=https://rome.dev.java.net/source/browse/*checkout*/rome/www/dist//rome-0.9.zip]rome0.9下载地址[/url]
    然后把rome-0.9.jar放在你的web-inf/lib下面.
    开始写代码了>

java 代码

public ActionForward RssPut(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
/**
* 产生二级分类
*/
String Guangao = "<br>";
DateFormat DATE_PARSER = new SimpleDateFormat("yyyy-MM-dd");
// 生成静态页面
ServletContext servletContext = servlet.getServletContext();
String realPath = servletContext.getRealPath("/");
List ProductType1 = productDAO.getProductTreeLayer("0");
List ProductType2 = productDAO.getProductTreeLayer("1");
List ProductType3 = productDAO.getProductTreeLayer("2");
/**
* 生成首页
*/
String path = realPath + "AntBeeRss/";
String fileName = "";
/**
* 从这里开始循环，产品名称的ID来
*/
for (int i = 0; i < ProductType2.size(); i++) {
Product product = (Product) ProductType2.get(i);
File newsDir = new File(path);
if (newsDir.exists()) {
fileName = path + "/AntBeeRss_"
+ product.getTypeDir().toString() + ".xml";
} else {
newsDir.mkdirs();
fileName = path + "/AntBeeRss_"
+ product.getTypeDir().toString() + ".xml";
}
SyndFeed feed = new SyndFeedImpl();
feed.setFeedType("rss_2.0");
feed.setTitle(product.getSonName() + "大全,报价,功能描述");
feed.setAuthor("AntBee Tech Corp.");
feed.setCopyright("Copyright 2007-2008, AntBee Tech Corp.");
feed.setLink("http://www.1718zx.cn");
feed.setDescription("AntBee Tech Corp.");
feed.setEncoding("GBK");//使用GBK,否则zhuaxia和google都不认识。
feed.setLanguage("GBK");
List entries = new ArrayList();
List product2 = productInfoDAO.getProductinfo2(product.getId()
.toString());
if (product2 != null) {
for (int j = 0; j < product2.size(); j++) {
Productinfo info = (Productinfo) product2.get(j);
SyndEntry entry;
SyndContent description;
entry = new SyndEntryImpl();
String manufacturer = (info.getManufacturer() == null) ? ""
: info.getManufacturer().getManufacturerName();
entry.setTitle(info.getProductName() + ",型号："
+ info.getProductSpec() + ",厂商：" + manufacturer);
entry.setLink("http://www.1718zx.cn/Product/"
+ info.getProductSpec() + ".html");
entry.setPublishedDate(new Date());
description = new SyndContentImpl();
description.setType("text/plain");
description.setValue(info.getProductDesc() + Guangao);
entry.setDescription(description);
entries.add(entry);
}
}
try{
feed.setEntries(entries);
Writer writer = new FileWriter(fileName);
SyndFeedOutput output = new SyndFeedOutput();
output.output(feed, writer);
writer.close();
}catch(Exception e){
continue;//在很多时候,有些txt文本当中不符合xml的一些规范,而我把它省略过去.
}
}
return "PutOk";
}

然后在页面上生成如下:(参考了javaeyeRSS订阅)

js 代码

<a href="../AntBeeRss/AntBeeRss_${typeDir?if_exists}.xml"><img src="../AntBeeCMS/images/rss2.gif" alt="RSS订阅此博客" /></a>
<a href="http://www.zhuaxia.com/add_channel.php?url=http://www.1718zx.cn/AntBeeRss/AntBeeRss_${typeDir?if_exists}.xml"><img src="../AntBeeCMS/images/rss_zhuaxia.gif" alt="用抓虾订阅此博客" /></a>
<a href="http://fusion.google.com/add?feedurl=http://www.1718zx.cn/AntBeeRss/AntBeeRss_${typeDir?if_exists}.xml"><img src="../AntBeeCMS/images/rss_google.gif" alt="用google订阅此博客" />

呵呵,是不是很简单.