courseaction.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 java.io.UnsupportedEncodingException;

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.CourseDAO;
import org.wangsong.dao.DAOFactory;
import org.wangsong.domain.Course;
import org.wangsong.service.UserExistJudgedService;
import org.wangsong.struts.form.CourseForm;

public class CourseAction extends Action
{
	private CourseDAO courseDao;

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

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
	{
		CourseForm courseForm = (CourseForm) form;
	    UserExistJudgedService uej=new UserExistJudgedService();
		courseDao = this.getCourseDAO();
        
 		Course course = new Course();

		course.setId(courseForm.getId());
		course.setName(courseForm.getName());
		course.setDep(courseForm.getDep());
		course.setMark(courseForm.getMark());
		 
		course.setPrepare(courseForm.getPrepare());
 		
		
 		ActionMessage message=null;
		ActionMessages messages=null;
		 if(uej.courseIdExist(courseForm.getId()))
		 {
				message=new ActionMessage("课程ID已经存在！！！",false);
				messages=new ActionMessages();
				messages.add("addcourse",message);
				saveErrors(request,messages);

			 return (mapping.getInputForward());
		 }
		 	 
		if (courseDao.saveCourse(course)) 
		{
			message=new ActionMessage("课程注册成功，请继续操作！！！",false);
			messages=new ActionMessages();
			messages.add("addcourse",message);
			saveErrors(request,messages);
			return (mapping.findForward("success"));
		}

	
		return (mapping.getInputForward()); 
	 
	}

}