publicaction.java

这是一个用Struts+Hibernate+Tomcat5.5.9实现的一个“课程管理系统”

//Created by MyEclipse Struts
// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_4.0.0/xslt/JavaClass.xsl

package struts.action;

import hibernate.Grade;
import hibernate.HibernateUtil;

import java.util.Iterator;
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 struts.Constants;
import struts.form.PublicForm;

/**
 * MyEclipse Struts Creation date: 11-22-2005
 * 
 * XDoclet definition:
 * 
 * @struts.action path="/public" name="publicForm" input="public.jsp"
 *                scope="request" validate="true"
 */
public class PublicAction extends Action {

	// --------------------------------------------------------- Instance
	// Variables

	// --------------------------------------------------------- Methods

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

		String username = "";
		String courseID = "";
		String name = "";
		Integer mark = null;
		Integer achievement = null;
		// Long grade_id=null;

		try {
			if (publicForm != null) {
				username = publicForm.getUsername();
				courseID = publicForm.getCourseID();
				name = new String((publicForm.getName()).getBytes("ISO-8859-1"));
				mark = publicForm.getMark();
				achievement = publicForm.getAchievement();
				// grade_id=publicForm.getGrade_id();
			}

		} catch (Exception e) {

		}

		List result = HibernateUtil.getGrade(username, courseID);
		Iterator it = result.iterator();
		

		if (result.isEmpty()) {
			Grade grade = new Grade(username, courseID, name, mark, achievement);

			HibernateUtil.save(grade);
		} else {
           Grade grade0=(Grade)it.next();
           grade0.setAchievement(achievement);
           HibernateUtil.update(grade0);
		}

		return (mapping.findForward(Constants.FORWARD_SUCCESS));
	}

}