courseregisteraction.java

这是一个学校老师和学生的管理系统,程序比较简单,但是几乎所有功能都可以实现,如果想要用,只要再添加一些东西就可以了.

/**
 *******************************************************************************
 * CourseAction.java
 *
 * (c) Copyright 2008 Hewlett-Packard Development Company, L.P.
 *
 *<Program Content>
 *  System Name ： Students Management System
 *<Summarize>
 *  The file includes a class and the class main function is to register course.
 *<Update Record>
 *  2009-4-29    1.00    zhangliy
 *******************************************************************************
 */
package com.hp.eds.zhangliyuan.stuMan.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.springframework.web.struts.ActionSupport;

import com.hp.eds.zhangliyuan.stuMan.consts.PageConsts;
import com.hp.eds.zhangliyuan.stuMan.entity.UserInfo;
import com.hp.eds.zhangliyuan.stuMan.service.interf.StudentServiceInt;

/**
 * The class main function is to register course.
 * 
 * @author zhangliy
 * @version 1.0
 */
public class CourseRegisterAction extends ActionSupport {
	/**
	 * current student register course
	 * 
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 * @throws Exception
	 * @see org.apache.struts.action.Action#execute(org.apache.struts.action.ActionMapping,
	 *      org.apache.struts.action.ActionForm,
	 *      javax.servlet.http.HttpServletRequest,
	 *      javax.servlet.http.HttpServletResponse)
	 */
	@Override
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {
		HttpSession session = request.getSession();
		UserInfo user = (UserInfo) session
				.getAttribute(PageConsts.LOGIN_SUCCESS_SESSION_MASSAGE);
		String userID = user.getStuId();
		String classID = (String) session.getAttribute("classID");
		StudentServiceInt studentService = (StudentServiceInt) this
		.getWebApplicationContext().getBean("studentServiceInt");
		String flg = null;
		if (studentService.updateEnrol(userID, classID)) {
			flg = PageConsts.COURSE_SUCCESS_PAGE;
			request.setAttribute(PageConsts.COURSE_EQUEST,
					PageConsts.COURSE_SUCCESS_MESSAGE);
		} else {
			flg = PageConsts.STUMENU_REGISTERCOU;
			request.setAttribute(PageConsts.COURSE_EQUEST,
					PageConsts.COURSE_FAIL_MESSAGE);
		}
		return mapping.findForward(flg);
	}

}