classesaction.java

学校的课程管理及选课系统

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

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.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.wangsong.dao.ClassesDAO;
import org.wangsong.dao.CourseDAO;
import org.wangsong.dao.DAOFactory;
import org.wangsong.dao.StudentDAO;
import org.wangsong.dao.TeacherDAO;
import org.wangsong.domain.Classes;
import org.wangsong.domain.Course;
import org.wangsong.domain.Teacher;
import org.wangsong.service.UserExistJudgedService;
import org.wangsong.struts.form.ClassesForm;

public class ClassesAction extends Action
{

	private ClassesDAO claDao;

	public ClassesDAO getClassesDAO()
	{
		return DAOFactory.getInstance().createClassesDAO();
	}
	private TeacherDAO teaDao;

	public TeacherDAO getTeacherDAO()
	{
		return DAOFactory.getInstance().createTeacherDAO();
	}
	private CourseDAO courseDao;

	public CourseDAO getCourseDAO()
	{
		return DAOFactory.getInstance().createCourseDAO();
	}

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
	{
		ClassesForm classesForm = (ClassesForm) form;
		UserExistJudgedService uej = new UserExistJudgedService();
	/*	System.out.println("id=="+classesForm.getId());
		System.out.println("courseID=="+classesForm.getCourse_id());
		System.out.println("roomId=="+classesForm.getCourse_id());
		System.out.println("teaID=="+classesForm.getTea_id());
		System.out.println("time=="+classesForm.getCourse_time());
 	*/	
		claDao = this.getClassesDAO();
        teaDao=this.getTeacherDAO();
        courseDao=this.getCourseDAO();
        
        Teacher teacher=teaDao.getTeacherByID(classesForm.getTea_id());
        Course course=courseDao.getCourseByID(classesForm.getCourse_id());
		Classes classes = new Classes();
         
 		classes.setId(classesForm.getId());
		classes.setCourTime(classesForm.getCourse_time());
		classes.setRoomId(classesForm.getRoom_id());
		classes.setCourse(course);
		classes.setTeacher(teacher);
		
		ActionMessage message=null;
		ActionMessages messages=null;
 	
 		 if(uej.classIdExist(classesForm.getId()))
		 {
				message=new ActionMessage("班级ID已经存在！！！",false);
				messages=new ActionMessages();
				messages.add("addclasses",message);
				saveErrors(request,messages);

			 return (mapping.getInputForward());
		 }
		 	 
		if (claDao.saveClasses(classes)) 
		{
			message=new ActionMessage("班级注册成功，请继续操作！！！",false);
			messages=new ActionMessages();
			messages.add("addclasses",message);
			saveErrors(request,messages);
			return (mapping.findForward("success"));
		}

	
		return (mapping.getInputForward());
  		
        //return null;
		
	}
}