newsupdateaction.java

struts hibernate spring实现新闻发布系统含说明文档

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.ata.wx.java01b.struts.action;

import java.util.Date;
import java.util.List;

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

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.hibernate.Session;
import org.hibernate.Transaction;

import com.ata.wx.java01b.dao.News;
import com.ata.wx.java01b.dao.NewsDAO;
import com.ata.wx.java01b.struts.form.NewsUpdateForm;

/**
 * MyEclipse Struts Creation date: 03-19-2008
 * 
 * XDoclet definition:
 * 
 * @struts.action path="/newsUpdate" name="newsUpdateForm"
 *                input="/newsupdate.jsp" scope="request" validate="true"
 */
public class NewsUpdateAction extends Action {
	/*
	 * Generated Methods
	 */
	NewsDAO newsdao = new NewsDAO();

	/**
	 * Method execute
	 * 
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		NewsUpdateForm newsUpdateForm = (NewsUpdateForm) form;

		String title = newsUpdateForm.getTitle();
		String content = newsUpdateForm.getContent();
		Session session = newsdao.getSession();
		
		String newsid = newsUpdateForm.getNewsid();
		News news = (News)session.load(News.class, newsid);
		System.out.println("aaaaaaaaaaaaaaaaaaaaaa");

		news.setContent(content);
		news.setTitle(title);
		news.setTime(new Date());
		Transaction tr = null;
		try {
			tr = session.beginTransaction();
			newsdao.attachClean(news);
			tr.commit();
		} catch (Exception e) {
			e.printStackTrace();
			tr.rollback();
		} finally {
			session.close();
		}

		List<News> newss = newsdao.findAllNews();
		request.getSession().setAttribute("news", newss);
		return mapping.findForward("secceed");
	}
}