newscontroller.java.svn-base

这是基于spring +hibernate的项目

package com.pure.web.spring.manager.news;

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.validation.BindException;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.SimpleFormController;

import com.pure.domain.News;
import com.pure.domain.NewsSort;
import com.pure.domain.logic.NewsFacade;
import com.pure.domain.logic.NewsSortFacade;
import com.pure.sys.Constant;
import com.pure.util.ParamUtil;
import com.pure.util.PureUtil;

/**
 * 新闻控制器
 * 
 * @author pure
 *
 */
public class NewsController extends SimpleFormController {
	protected final Log logger = LogFactory.getLog(getClass());

	private NewsFacade newsFacade;

	private NewsSortFacade newsSortFacade;
	
	public NewsSortFacade getNewsSortFacade() {
		return newsSortFacade;
	}

	public void setNewsSortFacade(NewsSortFacade newsSortFacade) {
		this.newsSortFacade = newsSortFacade;
	}

	public NewsFacade getNewsFacade() {
		return newsFacade;
	}

	public void setNewsFacade(NewsFacade newsFacade) {
		this.newsFacade = newsFacade;
	}

	/**
	 * 初始化表单数据
	 */
	protected Object formBackingObject(HttpServletRequest request)
			throws Exception {
		String method = ParamUtil.getString(request, Constant.ACTION, Constant.NEW);
		News news = new News();
		request.setAttribute("newsSortList", getNewsSortFacade().getNewsSortList());
		
		// 新建初始化
		if (Constant.NEW.equalsIgnoreCase(method)) {
			news.setId(new Long(0));
			news.setNewsdate(PureUtil.getDateFormatStr("yyyy年MM月dd日"));
		}
		// 编辑初始化
		if (Constant.EDIT.equalsIgnoreCase(method)) {
			int id = ParamUtil.getInt(request, "id", 0);
			news = this.getNewsFacade().getNews(id);
			if(null==news.getNewssort()){
				news.setNewssort(new NewsSort());
			}
		}
		return news;
	}

	/**
	 * 处理表单提交事件
	 */
	protected ModelAndView onSubmit(HttpServletRequest request,
			HttpServletResponse response, Object command, BindException errors)
			throws Exception {
		HttpSession session = request.getSession();
		String method = ParamUtil.getString(request, Constant.ACTION, Constant.NEW);

		News news = (News) command;
		news.setRealPath(session.getServletContext().getRealPath("/"));
		
		NewsSort newsSort = this.getNewsSortFacade().getNewsSort(ParamUtil.getInt(request, "newssort_id", 0));
		news.setNewssort(newsSort);
		
		if (Constant.NEW.equalsIgnoreCase(method)) {
			this.getNewsFacade().insertNews(news);
		}
		
		if (Constant.EDIT.equalsIgnoreCase(method)) {
			this.getNewsFacade().updateNews(news);
		}
		
		return new ModelAndView(getSuccessView());
	}

}