Spring rss实例

从spring 3 开始可以使用内置的方法来实现实现rss或者atom
org.springframework.web.servlet.view.feed.AbstractRssFeedView
org.springframework.web.servlet.view.feed.AbstractAtomFeedView

本实例使用org.springframework.web.servlet.view.feed.AbstractRssFeedView来实现rss
步骤
1：加入相关jar包
加入rome-x.jar和jdom.jar
2：加入视图解析(这里使用BeanNameViewResolver，此resolver的原理是返回的viewName和spring的context里面的name相同)，如果有多个resolver需要设置order
<bean class="org.springframework.web.servlet.view.BeanNameViewResolver">
        <property name="order" value="0"/>
     </bean>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/view/" p:suffix=".jsp">
        <property name="order" value="1"/>
</bean>

3:实现RssView，继承自AbstractRssFeedView
@Component("rssView")//这个地方的配置要和后面controller的viewName一样
public class RssView extends AbstractRssFeedView {
         @Override
         protected void buildFeedMetadata(Map<String,Object> model, Channel feed,
                  HttpServletRequest request) {
             String feedTitle = (String)model.get("feedTitle");

             String feedDesc = (String)model.get("feedDesc");

             String feedLink = (String)model.get("feedLink");
             feed.setTitle(feedTitle);
             feed.setDescription(feedDesc);
             feed.setLink(feedLink);
         }

       @Override
         protected List<Item> buildFeedItems(Map<String, Object> model,

                 HttpServletRequest request, HttpServletResponse response)

                  throws Exception {

             @SuppressWarnings("unchecked")
             List<RssItem> rssItems = (List<RssItem>) model.get("rssItemList");
             List<Item> feedItems = new ArrayList<Item>();
              for (RssItem rssItem : rssItems) {

                 Item feedItem = new Item();
                 feedItem.setTitle(rssItem.getTitle());
                 feedItem.setAuthor(rssItem.getAuthor());
                 feedItem.setPubDate(rssItem.getDatePublished());
                 Description desc = new Description();
                 desc.setValue(rssItem.getDescription());
                 feedItem.setDescription(desc);
                 feedItem.setLink(rssItem.getLink());
                 feedItems.add(feedItem);
             }
             return feedItems;
         }
     }

4 Controller
@Controller
@RequestMapping(value = "rss")
public class RssMgr {
     @RequestMapping(value = "test_rss.htm")
      public String testRss(Model model) {
        List<RssItem> rssItems = new ArrayList<RssItem>();
         for (int i = 0; i < 5; i++) {
            RssItem n = new RssItem();
            n.setTitle("第【"+i+"】条spring Rss测试消息标题");
            n.setDescription("第【"+i+"】测试消息内容说明");
          n.setLink("http://localhost:8080/springdemo/someurl.html");
            n.setAuthor("作者：疯狂");
            n.setDatePublished(new Date());
            rssItems.add(n);
        }
        model.addAttribute("rssItemList", rssItems);
        // 频道的相关信息
        model.addAttribute("feedTitle", "spring RSS 测试");
        model.addAttribute("feedDesc", "spring RSS 测试头条新闻");
        model.addAttribute("feedLink",
        http://localhost:8080/springdemo/rss/test_rss.htm);
        return "rssView";
     }

}

访问：http://localhost:8080/springdemo/rss/test_rss.htm
返回：

摘自疯狂

补充：软件开发 , Java ,