actnews.java

新闻管理系统

/*
 * Created on 2008-5-5
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package cn.edu.zucc.news.action;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

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

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.DispatchAction;

import cn.edu.zucc.news.model.News;
import cn.edu.zucc.news.model.NewsDAO;
import cn.edu.zucc.news.model.NewsType;
import cn.edu.zucc.news.model.WebUser;
  
/**
 * @author Administrator
 * 
 * TODO To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
public class ActNews extends DispatchAction {
	private long seed = 1;
    private SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
	
	public ActionForward listNews(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {

		NewsDAO dao = new NewsDAO();
		try {
			List result = dao.loadAllNews();
			request.setAttribute("objlist", result);
			return mapping.findForward("news.list");
		} catch (Exception ex) {
			ex.printStackTrace();
			return mapping.findForward("loginfail");
		}

	}
	
	public ActionForward addNews(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		
		News news=new News();
		news.setMethod("addresult");
		news.setNewsTypeId(request.getParameter("newstypeid"));
		request.setAttribute("news",news);
		return mapping.findForward("news.editor");
		

	}
	public ActionForward addresult(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {

		News news=(News) form;
		NewsDAO dao = new NewsDAO();
		news.setNewsid(df.format(new Date()) + "-" + (seed++));
		WebUser user=(WebUser)request.getSession().getAttribute("user");
        try {
        	news.setNewsAutor(user.getUsername());
			dao.addNews(news);
			return this.listNews(mapping, form, request, response);
		} catch (Exception ex) {
			ex.printStackTrace();
			return mapping.findForward("loginfail");
		}

	}
	
	
	public ActionForward modifyNews(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		NewsDAO dao = new NewsDAO();
		News news;
		try {
			news = dao.readNews(request.getParameter("id"));
			news.setMethod("modifyresult");		
			request.setAttribute("news",news);
			return mapping.findForward("news.editor");
		} catch (Exception e) {
			// TODO 自动生成 catch 块
			e.printStackTrace();
			return mapping.findForward("loginfail");
		}
		
		

	}
	public ActionForward modifyresult(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {

		News news=(News) form;
		NewsDAO dao = new NewsDAO();
		WebUser user=(WebUser)request.getSession().getAttribute("user");
        try {
        	news.setNewsAutor(user.getUsername());
        	
			dao.saveNews(news);
			return this.listNews(mapping, form, request, response);
		} catch (Exception ex) {
			ex.printStackTrace();
			return mapping.findForward("loginfail");
		}

	}
	public ActionForward delete(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {

		String id = request.getParameter("id");
		NewsDAO dao = new NewsDAO();
		try {
			dao.delNews(id);
			return this.listNews(mapping, form, request, response);
		} catch (Exception ex) {
			return mapping.findForward("loginfail");
		}

	}
	public ActionForward index(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {

		NewsDAO dao = new NewsDAO();
		try {
			 System.out.println("ssssfffs");
			  request.setAttribute("objlist", dao.loadAllNews());
			  System.out.println("sssss");
			
			return mapping.findForward("index");
		} catch (Exception ex) {
			ex.printStackTrace();
			return mapping.findForward("loginfail");
		}
	}
	public ActionForward read(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {

		NewsDAO dao = new NewsDAO();
		try {
			News news = dao.readNews(request.getParameter("newsid"));
            if(news!=null)dao.incReadCount(news.getNewsid());
            request.setAttribute("news", news);
			return mapping.findForward("news.reader");
		} catch (Exception ex) {
			ex.printStackTrace();
			return mapping.findForward("loginfail");
		}
	}
}