addnewsaction.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.HibernateException;
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.dao.Newstype;
import com.ata.wx.java01b.dao.NewstypeDAO;
import com.ata.wx.java01b.dao.User;
import com.ata.wx.java01b.struts.form.AddNewsForm;

/**
 * MyEclipse Struts Creation date: 03-19-2008
 * 
 * XDoclet definition:
 * 
 * @struts.action path="/addNews" name="addNewsForm" input="/addnews.jsp"
 *                scope="request" validate="true"
 */
public class AddNewsAction extends Action {
	/*
	 * Generated Methods
	 */
	NewstypeDAO newstypedao = new NewstypeDAO();

	/**
	 * Method execute
	 * 
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		AddNewsForm addNewsForm = (AddNewsForm) form;// TODO Auto-generated
														// method stub
		ActionForward forward = null;

		// 获取表单信息
		String title = addNewsForm.getTitle();
		String content = addNewsForm.getContent();

		// 通过获取的表单信息查询新闻分类ID
		String type = addNewsForm.getType();
		Newstype newstype = new Newstype(type);

		List<Newstype> newstypelist = newstypedao.findByExample(newstype);
		newstype.setNewstypeid(newstypelist.get(0).getNewstypeid());

		// 通过Session获取用户信息
		User user = (User) request.getSession().getAttribute("user");

		News news = new News(user, newstype, title, content, new Date());
		NewsDAO newsdao = new NewsDAO();
		Session session = null;
		Transaction tx = null;

		try {
			session = newsdao.getSession();
			tx = session.beginTransaction();
			newsdao.save(news);
			tx.commit();
			forward = mapping.findForward("secceed");
		} catch (HibernateException e) {
			tx.rollback();
			forward = mapping.findForward("fail");
			e.printStackTrace();
		} finally {
			session.close();
		}
		return forward;
	}
}