kexuan.java

学生选课管理系统 struts hibernate

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

import java.util.List;

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.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.hibernate.BusinessService;

/**
 * MyEclipse Struts Creation date: 07-09-2006
 * 
 * XDoclet definition:
 * 
 * @struts.action validate="true"
 * @struts.action-forward name="success" path="/xuanke.jsp"
 */
public class KeXuan extends Action {
	/*
	 * Generated Methods
	 */

	/**
	 * Method execute
	 * 
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		// TODO Auto-generated method stub
		try {
			HttpSession  session=request.getSession();
			String value = request.getParameter("value");

			BusinessService rs = new BusinessService();
			int pages = Integer.parseInt(value);
			int countrecord = rs.findAllCourse().size();// 记录数
			int pagerecord = 2;// 一页有几条记录
			int countpage = 0;// 总页数

			List list = null;
			if (countrecord % pagerecord == 0) {
				countpage = (countrecord / pagerecord);
			} else
				countpage = countrecord / pagerecord + 1;
			if (pages < 0) {
				pages = 0;
				list = rs.findPageCourse(0, pagerecord);
			} else if (pages > (countpage - 1)) {
				pages = (countpage - 1);
				list = rs.findPageCourse((pages) * pagerecord, pagerecord);
			} else {
				list = rs.findPageCourse((pages) * pagerecord, pagerecord);
			}
			request.setAttribute("countpage", new Integer(countpage));
			request.setAttribute("list", list);
			session.setAttribute("list",list);
			request.setAttribute("pages", new Integer(pages));

		} catch (Exception e) {
			e.printStackTrace();
		}
		return (mapping.findForward("success"));

	}
}