studentaction.java

采用STRUTS+HIBERNATE做的一个学生成绩管理系统.用的ORACLE9I数据库.

//Created by MyEclipse Struts
// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_4.1.1/xslt/JavaClass.xsl

package org.yangyang.action;

import java.util.ArrayList;
import java.util.List;

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

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.DynaActionForm;
import org.apache.struts.actions.DispatchAction;
import org.yangyang.bean.Student;
import org.yangyang.common.util.CodeConstant;
import org.yangyang.dao.DictionaryDao;
import org.yangyang.dao.StudentDao;

/** 
 * MyEclipse Struts
 * Creation date: 03-22-2008
 * 
 * XDoclet definition:
 * @struts.action path="/student" name="mainForm" scope="request" validate="true"
 */
public class StudentAction extends DispatchAction {
	// --------------------------------------------------------- Instance Variables

	// --------------------------------------------------------- Methods

	/** 
	 * Method init 用于初始化学生信息,显示学生的信息
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward init(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
		//得到FORM
		DynaActionForm mainForm = (DynaActionForm) form;
		//得到学生信息
		showPage(request);
		//进行跳转
		return mapping.findForward(CodeConstant.SHOW_STUDENT);
	}
	
	/** 
	 * Method addStudent 增加学生
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward addStudent(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
		//得到FORM
		DynaActionForm mainForm = (DynaActionForm) form;
		//构造一个学生对象
		Student stu = new Student();
		stu.setId((String)mainForm.get("studentid"));
		stu.setName((String)mainForm.get("studentname"));
		stu.setSex((String)mainForm.get("studentsex"));
		stu.setBirthday((String)mainForm.get("birthday"));
		stu.setAge(new Integer((String)mainForm.get("age")));
		stu.setNativeplace((String)mainForm.get("nativeplace"));
		stu.setSpeciality((String)mainForm.get("speciality"));
		stu.setAddress((String)mainForm.get("address"));
		stu.setIdentitycard((String)mainForm.get("identitycard"));
		stu.setJoindate((String)mainForm.get("joindate"));
		
		StudentDao stuDao = new StudentDao();
		//调用DAO进行学生的增加
		stuDao.addOrupadate(stu);
		//提示信息
		request.setAttribute(CodeConstant.MESSAGE,CodeConstant.ADD_SUCCESS);
		//得到学生信息
		showPage(request);
		//进行跳转
		return mapping.findForward(CodeConstant.SHOW_STUDENT);
	}
	
	/** 
	 * Method delStudent 删除学生
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward delStudent(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
		//得到要删除学生的编号
		String id = request.getParameter("stuid");
		StudentDao studentDao = new StudentDao();
		//进行删除
		studentDao.del(id,CodeConstant.STUDENT);
		//提示信息
		request.setAttribute(CodeConstant.MESSAGE,CodeConstant.DEL_SUCCESS);
		//得到学生信息
		showPage(request);
		//进行跳转
		return mapping.findForward(CodeConstant.SHOW_STUDENT);
	}
	
	/** 
	 * Method updateStudent 跳转到修改学生页面
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward updateStudent(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
		//得到要修改学生的编号
		String id = request.getParameter("stuid");
		StudentDao studentDao = new StudentDao();
		//查找学生
		Student stu = studentDao.getSudentbyId(id);
		request.setAttribute(CodeConstant.UPDATE_STUDENT_LIST,stu);
		DictionaryDao dicDao = new DictionaryDao();
	    //得到所有专业信息
		request.setAttribute(CodeConstant.DICTIONARY_LIST,dicDao.getName(CodeConstant.KINDID,"1"));
		//进行跳转
		return mapping.findForward(CodeConstant.UPDATE_STUDENT);
	}
	
	/** 
	 * Method updateStudent 修改学生
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward updateStudentAfter(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
		//得到FORM
		DynaActionForm mainForm = (DynaActionForm) form;
		//构造一个学生对象
		Student stu = new Student();
		stu.setId((String)mainForm.get("id"));
		stu.setName((String)mainForm.get("name"));
		stu.setSex((String)mainForm.get("sex"));
		stu.setBirthday((String)mainForm.get("birthday"));
		stu.setAge(new Integer((String)mainForm.get("age")));
		stu.setNativeplace((String)mainForm.get("nativeplace"));
		stu.setSpeciality((String)mainForm.get("speciality"));
		stu.setAddress((String)mainForm.get("address"));
		stu.setIdentitycard((String)mainForm.get("identitycard"));
		stu.setJoindate((String)mainForm.get("joindate"));
		stu.setUpdatedate(new java.util.Date());
		StudentDao stuDao = new StudentDao();
		stuDao.addOrupadate(stu);
		//提示信息
		request.setAttribute(CodeConstant.MESSAGE,CodeConstant.UPDATE_SUCCESS);
		//得到学生信息
		showPage(request);
		//进行跳转
		return mapping.findForward(CodeConstant.SHOW_STUDENT);
	}
	
	/** 
	 * Method showPage 得到学生信息,并进行初始化
	 * @param request
	 */
	protected void showPage(HttpServletRequest request){
		//保存页数
		List<Integer> pageList = new ArrayList();
		//保存结果
		List<Student> resultList = new ArrayList();
		//页数
		int page = 1;
		//得到页数
		if(request.getParameter(CodeConstant.PAGE_NUM) != null){
			page = new Integer(request.getParameter(CodeConstant.PAGE_NUM));
		}
		StudentDao studentDao = new StudentDao();
		//得到页面数量
		int pageNum = studentDao.getPage(CodeConstant.PAGE_COUNT,Student.class);
		//判断是否有数据
		if(pageNum > 0){
			for(int n = 1;n <= pageNum;n ++){
				pageList.add(n - 1,n);
			}
			//返回页面数量
			request.setAttribute(CodeConstant.PAGE_NUM,pageList);
			//得到结果
			resultList = studentDao.showStudent(page,CodeConstant.PAGE_COUNT);
			//返回结果
			request.setAttribute(CodeConstant.STUDENT_LIST,resultList);
		}
	}

}