contextlistener.java

本程序所写的排课

package com.briup.web.listener;

import java.util.List;

import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import com.briup.bean.Classroom;
import com.briup.bean.Course;
import com.briup.bean.Deploy;
import com.briup.common.BeanFactory;
import com.briup.common.exception.CourseServiceException;
import com.briup.service.impl.CourseServiceImpl;

public class ContextListener implements ServletContextListener{

	public void contextDestroyed(ServletContextEvent event) {
		
		ServletContext stc = event.getServletContext();
		stc.removeAttribute("roomList");
		stc.removeAttribute("courseList");
	}

	public void contextInitialized(ServletContextEvent event) {
		
		ServletContext stc = event.getServletContext();
		CourseServiceImpl service = (CourseServiceImpl)(BeanFactory.getBean(BeanFactory.COURSESERVICEIMPL));
		try {
			List<Classroom> roomList = service.listAllClassroom();
			List<Course> courseList = service.listAllCourse();
			List<Deploy> deployList = service.lookupCourse();
			stc.setAttribute("roomList", roomList);
			stc.setAttribute("courseList", courseList);
			stc.setAttribute("deployList", deployList);
		} catch (CourseServiceException e) {

			e.printStackTrace();
		}
	}
}