listnewscontroller.java

本人编写的基于spring + spring mvc + hibernate架构的新闻系统

package org.coldice.webapp.controller;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.coldice.service.NewsManager;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

public class ListNewsController implements Controller {

	/** Logger for this class and subclasses */
	protected final Log logger = LogFactory.getLog(getClass());

	private NewsManager newsManager;

	/**
	 * @param newsManager
	 *            the newsManager to set
	 */
	public void setNewsManager(NewsManager newsManager) {
		this.newsManager = newsManager;
	}

	public ModelAndView handleRequest(HttpServletRequest request,
			HttpServletResponse response) throws Exception {
		// TODO Auto-generated method stub
		Map<String, Object> newsModel = new HashMap<String, Object>();

		String now = (new java.util.Date()).toString();
		logger.info("returning news view at " + now);

		logger.info("now get the newslist is begin...");

		Collection list = newsManager.listNewss();

		logger.info(list.size());
		logger.info("completed!");

		/***********************************************************************
		 * 这个类只是用来显示列表信息
		 */
		newsModel.put("now", now);
		newsModel.put("news", list);

		return new ModelAndView("newsList", "model", newsModel);
	}
}