addnewsaction.java

新闻发布系统news struts+spring+hibernate

package org.yeeku.action;

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

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForward;
import org.apache.struts.validator.DynaValidatorForm;

import org.yeeku.action.base.BaseAction;
import org.yeeku.webapp.util.AppConstants;
import org.yeeku.model.*;

import java.util.*;

/**
 * @author  yeeku.H.lee [e-mail]
 * @version  1.0
 * <br>Copyright (C), 2005-2008, yeeku.H.Lee
 * <br>This program is protected by copyright laws.
 * <br>Program Name:
 * <br>Date: 
 */
public class AddNewsAction extends BaseAction
{
    //必须重写该核心方法，该方法actionForm将表单的请求参数封装成值对象
    public ActionForward execute(ActionMapping mapping, ActionForm form,
       HttpServletRequest request, HttpServletResponse response)throws Exception
    {
        DynaValidatorForm loginForm = (DynaValidatorForm)form;
        String title = (String)loginForm.get("title");
        String content = (String)loginForm.get("content");
        String cateId = (String)loginForm.get("categoryId");

        try
        {
            Category category = mgr.getCategory(cateId);
            String username = (String)request.getSession(true).getAttribute(
                    AppConstants.LOGIN_USER);
            User poster = mgr.getUser(username);
            News news = new News();
            news.setCategory(category);
            news.setPoster(poster);
            news.setTitle(title);
            news.setContent(content);
            news.setPostDate(new Date());
            news.setLastModifyDate(new Date());
            mgr.saveNews(news);
        }
        catch (Exception e)
        {
            request.setAttribute("categoryId" , cateId);
            return mapping.findForward("failure");
        }
        request.setAttribute("categoryId" , cateId);
        return mapping.findForward("success");
    }
}