基于java web的课堂考勤系统

编程语言 2023-06-05 00:24:50 阅读次数: 0

目录

1.系统简要概述

2.系统设计

2.1功能设计

2.2用例设计 

 2.3数据库设计

2.4数据表设计

3.系统相关页面

3.1登陆页面

 3.3教师发布考勤

 3.4查看考勤信息

 3.5 教师补打卡

 3.6学生考勤打卡

  4.部分代码

1.系统简要概述

此系统是基于B/S架构开发，利用j2ee技术，开发出来的一套web系统。主要用到的技术有servlet、javabean、jsp、echarts、jquery、ajax等。系统采用mvc模式实现内部逻辑和页面的分离。总体来看，工作量适当。

2.系统设计

2.1功能设计

2.2用例设计 

系统总体用例图

 2.3数据库设计

2.4数据表设计

user

 classes

 kaoqin

3.系统相关页面

3.1登陆页面

 3.2管理员首页

 3.3教师发布考勤

 3.4查看考勤信息

 3.5 教师补打卡

 3.6学生考勤打卡

  4.部分代码

adminservlet

package servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import dao.ComBean;
import dao.Constant;
import dao.DBA;

/**
*@author:gz
*@version：2023年4月13日上午10:29:47
*类说明
*/
@WebServlet("/AdminServlet")
public class AdminServlet extends HttpServlet {
	@Override
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		String method=request.getParameter("method");
		if(method.equals("login")){
			Login(request,response);
		}
		if(method.equals("addschool")){
			Addschool(request,response);
		}
		if(method.equals("upschool")){
			UpmSchool(request,response);
		}
		if(method.equals("delschool")){
			Delschool(request,response);
		}
		if(method.equals("addteacher")){
			Addteacher(request,response);
		}
		if(method.equals("upteacher")){
			Upteacher(request,response);
		}
		if(method.equals("delteacher")){
			Delteacher(request,response);
		}
		if(method.equals("addstudent")){
			Addstudent(request,response);
		}
		if(method.equals("upstudent")){
			Upstudent(request,response);
		}
		if(method.equals("delstudent")){
			Delstudent(request,response);
		}
		if(method.equals("addsubject")){
			Addsubject(request,response);
		}
		if(method.equals("upsubject")){
			Upsubject(request,response);
		}
		if(method.equals("delsubject")){
			Delsubject(request,response);
		}
		if(method.equals("uppwd")){
			Uppwd(request,response);
		}
		if(method.equals("adminexit")){
			Loginout(request,response);
		}
	}
	//退出登录
	private void Loginout(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
		// TODO 自动生成的方法存根
		HttpSession session = request.getSession(); 
		session.removeAttribute("user");  session.removeAttribute("sf");
		request.getRequestDispatcher("index.jsp").forward(request, response); 
	}

	//修改密码
	private void Uppwd(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
		// TODO 自动生成的方法存根
		ComBean cBean = new ComBean();
		PrintWriter out=response.getWriter();
		HttpSession session = request.getSession();  
		String oldpwd =request.getParameter("oldpwd");

		String newpwd =request.getParameter("newpwd");
		String repwd =request.getParameter("repwd");
		String user=(String)session.getAttribute("user");//获取当前登录用户名
		String sql="select * from user where user_name='"+user+"' and pwd='"+oldpwd+"'";
		int count=cBean.getCount(sql);
		System.out.print(count);
		if(count==0){
			out.print("<script>" +
					"alert('旧密码错误，修改失败！');" + 
					"window.location.href=\"admin/editpwd.jsp\";"+
					"</script>");
			return;
		}else {
			if(!newpwd.equals(repwd)){
				out.print("<script>" +
						"alert('对不起，两次密码不相同，修改失败！');" + 
						"window.location.href=\"admin/editpwd.jsp\";"+
						"</script>");
				return;
			}else {
				String sql2="update user set pwd='"+newpwd+"' where user_name='"+user+"'" ;
				if(cBean.comUp(sql2)==1){
					out.print("<script>" +
							"alert('修改成功！请重新登录');" + 
							"window.top.location.href= \"index.jsp\";" +
							"</script>");	
				}


			}
		}

	}
	//删除课程
	private void Delsubject(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
		// TODO 自动生成的方法存根
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		String id=request.getParameter("id");
		int flag=cBean.comUp("delete from subject where id='"+id+"'");
		if(flag == Constant.SUCCESS){ 
			//request.setAttribute("message", "操作成功！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作成功！');" +
					"window.location.href=\"admin/showSubject.jsp\";" + 
					"</script>");
			return;
		}
		else { 
			//request.setAttribute("message", "操作失败！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作失败！');" +
					"window.location.href=\"admin/showSubject.jsp\";" + 
					"</script>");
			return;
		}
	}
	//修改课程
	private void Upsubject(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
		// TODO 自动生成的方法存根
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		String id=request.getParameter("id");
		String subjectId=request.getParameter("subject_id");
		String subjectName=request.getParameter("subject_name");
		int flag=cBean.comUp("update subject set subject_id='"+subjectId+"',subject_name='"+subjectName+"' where id='"+id+"'");
		if(flag == Constant.SUCCESS){ 
			//request.setAttribute("message", "操作成功！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作成功！');" +
					"window.location.href=\"admin/showSubject.jsp\";" + 
					"</script>");
			return;
		}
		else { 
			//request.setAttribute("message", "操作失败！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作失败！');" +
					"window.location.href=\"admin/showSubject.jsp\";" + 
					"</script>");
			return;
		}
	}
	//添加课程
	private void Addsubject(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
		// TODO 自动生成的方法存根
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		String subjectId=request.getParameter("subject_id");
		String subjectName=request.getParameter("subject_name");
		int flag=cBean.comUp("insert into subject(subject_id,subject_name) values('"+subjectId+"','"+subjectName+"')");
		if(flag==Constant.SUCCESS){
			out.print("<script>" + "alert('添加成功！');" + 
					"window.top.href=\"admin/index2.jsp\";" + 
					"</script>");
			return;
		}
		else {
			out.print("<script>" + "alert('添加失败！');" + 
					"window.location.href=\"admin/add_subject.jsp\";" + 
					"</script>");
			return;
		}
	}
	//删除学生
	private void Delstudent(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		String id=request.getParameter("id");
		List list=cBean.get1Com("select student_sex from student where id='"+id+"'", 1);
		String sex=list.get(0).toString();
		if(sex.equals("男")){
			cBean.comUp("update tu_count set student=student-1,s_man=s_man-1");
		}
		else if(sex.equals("女")){
			cBean.comUp("update tu_count set student=student-1,s_woman=s_woman-1");
		}
		int flag=cBean.comUp("delete from student where id='"+id+"'");
		if(flag == Constant.SUCCESS){ 
			
			//request.setAttribute("message", "操作成功！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作成功！');" +
					"window.location.href=\"admin/showStudent.jsp\";" + 
					"</script>");
			return;
		}
		else { 
			//request.setAttribute("message", "操作失败！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作失败！');" +
					"window.location.href=\"admin/showStudent.jsp\";" + 
					"</script>");
			return;
		}
	}
	//修改学生
	private void Upstudent(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		String id=request.getParameter("id");
		String studentId=request.getParameter("student_id");
		String studentName=request.getParameter("student_name");
		String studentSex=request.getParameter("student_sex");
		String studentDept=request.getParameter("student_dept");
		String studentclass=request.getParameter("student_class");
		int flag=cBean.comUp("update student set student_id='"+studentId+"',student_name='"+studentName+"',student_sex='"+studentSex+"',student_dep='"+studentDept+"',student_class='"+studentclass+"' where id='"+id+"'");
		if(flag == Constant.SUCCESS){ 
			//request.setAttribute("message", "操作成功！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作成功！');" +
					"window.location.href=\"admin/showStudent.jsp\";" + 
					"</script>");
			return;
		}
		else { 
			//request.setAttribute("message", "操作失败！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作失败！');" +
					"window.location.href=\"admin/showStudent.jsp\";" + 
					"</script>");
			return;
		}
	}
	//添加学生
	private void Addstudent(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		String studentId=request.getParameter("student_id");
		String studentName=request.getParameter("student_name");
		String studentSex=request.getParameter("student_sex");
		String studentDept=request.getParameter("student_dept");
		String studentclass=request.getParameter("student_class");
		int flag=cBean.comUp("insert into student(student_id,student_name,student_sex,student_dep,student_class) values('"+studentId+"','"+studentName+"','"+studentSex+"','"+studentDept+"','"+studentclass+"')");
		if(flag==Constant.SUCCESS){
			if(studentSex.equals("男")){
				cBean.comUp("update tu_count set student=student+1,s_man=s_man+1 ");
			}
			else if(studentSex.equals("女")){
				cBean.comUp("update tu_count set student=student+1,s_woman=s_woman+1 ");
			}
			out.print("<script>" + "alert('添加成功！');" + 
					"window.top.href=\"admin/index2.jsp\";" + 
					"</script>");
			return;
		}
		else {
			out.print("<script>" + "alert('添加失败！');" + 
					"window.location.href=\"admin/add_school.jsp\";" + 
					"</script>");
			return;
		}
	}
	//删除教师
	private void Delteacher(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		String id=request.getParameter("id");
		List list=cBean.get1Com("select teacher_sex from teacher where id='"+id+"'", 1);
		String sex=list.get(0).toString();
		if(sex.equals("男")){
			cBean.comUp("update tu_count set teacher=teacher-1,t_man=t_man-1");
		}
		else if(sex.equals("女")){
			cBean.comUp("update tu_count set teacher=teacher-1,t_woman=t_woman-1");
		}
		int flag=cBean.comUp("delete from teacher where id='"+id+"'");
		if(flag == Constant.SUCCESS){ 	
			
			//request.setAttribute("message", "操作成功！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作成功！');" +
					"window.location.href=\"admin/showTeacher.jsp\";" + 
					"</script>");
			return;
		}
		else { 
			//request.setAttribute("message", "操作失败！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作失败！');" +
					"window.location.href=\"admin/showTeacher.jsp\";" + 
					"</script>");
			return;
		}
	}
	//修改教师
	private void Upteacher(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		String id=request.getParameter("id");
		String teacherId=request.getParameter("teacher_id");
		String teacherName=request.getParameter("teacher_name");
		String teacherSex=request.getParameter("teacher_sex");
		String teacherDept=request.getParameter("teacher_dept");
		int flag=cBean.comUp("update teacher set person_id='"+teacherId+"',teacher_name='"+teacherName+"',teacher_sex='"+teacherSex+"',teacher_dep='"+teacherDept+"' where id='"+id+"'");
		if(flag == Constant.SUCCESS){ 
			//request.setAttribute("message", "操作成功！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作成功！');" +
					"window.location.href=\"admin/showTeacher.jsp\";" + 
					"</script>");
			return;
		}
		else { 
			//request.setAttribute("message", "操作失败！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作失败！');" +
					"window.location.href=\"admin/showTeacher.jsp\";" + 
					"</script>");
			return;
		}
	}
	//添加教师
	private void Addteacher(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		String teacherId=request.getParameter("teacher_id");
		String teacherName=request.getParameter("teacher_name");
		String teacherSex=request.getParameter("teacher_sex");
		String teacherDept=request.getParameter("teacher_dept");
		int flag=cBean.comUp("insert into teacher(person_id,teacher_name,teacher_sex,teacher_dep) values('"+teacherId+"','"+teacherName+"','"+teacherSex+"','"+teacherDept+"')");
		if(flag==Constant.SUCCESS){
			if(teacherSex.equals("男")){
				cBean.comUp("update tu_count set teacher=teacher+1,t_man=t_man+1 ");
			}
			else if(teacherSex.equals("女")){
				cBean.comUp("update tu_count set teacher=teacher+1,t_woman=t_man+1 ");
			}
		
			out.print("<script>" + "alert('添加成功！');" + 
					"window.top.href=\"admin/index2.jsp\";" + 
					"</script>");
			return;
		}
		else {
			out.print("<script>" + "alert('添加失败！');" + 
					"window.location.href=\"admin/add_school.jsp\";" + 
					"</script>");
			return;
		}
	}
	//删除学院信息
	private void Delschool(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		String id=request.getParameter("id");
		int flag=cBean.comUp("delete from school where id='"+id+"'");
		if(flag == Constant.SUCCESS){ 
			//request.setAttribute("message", "操作成功！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作成功！');" +
					"window.location.href=\"admin/showSchool.jsp\";" + 
					"</script>");
			return;
		}
		else { 
			//request.setAttribute("message", "操作失败！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作失败！');" +
					"window.location.href=\"admin/showSchool.jsp\";" + 
					"</script>");
			return;
		}
	}
	//修改学院信息
	private void UpmSchool(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
		// TODO 自动生成的方法存根
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		String id=request.getParameter("id");
		String schoolId=request.getParameter("school_id");
		String schoolName=request.getParameter("school_name");
		int flag=cBean.comUp("update school set school_id='"+schoolId+"',school_name='"+schoolName+"' where id='"+id+"'");
		if(flag == Constant.SUCCESS){ 
			//request.setAttribute("message", "操作成功！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作成功！');" +
					"window.location.href=\"admin/showSchool.jsp\";" + 
					"</script>");
			return;
		}
		else { 
			//request.setAttribute("message", "操作失败！");
			//request.getRequestDispatcher("admin/system/index.jsp").forward(request, response); 
			out.print("<script>" +
					"alert('操作失败！');" +
					"window.location.href=\"admin/showSchool.jsp\";" + 
					"</script>");
			return;
		}
	}
	//添加学院
	private void Addschool(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
		// TODO 自动生成的方法存根
		//request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		String schoolId=request.getParameter("school_id");
		String schoolName=request.getParameter("school_name");
		int flag=cBean.comUp("insert into school(school_id,school_name) values('"+schoolId+"','"+schoolName+"')");
		if(flag==Constant.SUCCESS){
			out.print("<script>" + "alert('添加成功！');" + 
					"window.top.href=\"admin/index2.jsp\";" + 
					"</script>");
			return;
		}
		else {
			out.print("<script>" + "alert('添加失败！');" + 
					"window.location.href=\"admin/add_school.jsp\";" + 
					"</script>");
			return;
		}
	}
	//登录
	private void Login(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out=response.getWriter();
		HttpSession session = request.getSession();  
		String user=request.getParameter("user_name");
		String pwd=request.getParameter("user_pwd");
		String sf=request.getParameter("sf");
		String piccode=(String) request.getSession().getAttribute("piccode");
		String checkCode=request.getParameter("checkCode");//取前端值
		checkCode=checkCode.toUpperCase();//把字符全部转化为大写的（用于验证码不区分大小写）
		ComBean cBean = new ComBean();
		String sql="select person_id from user where user_name='"+user+"' and  pwd='"+pwd+"'  and  sf='"+sf+"' ";
		String str=cBean.getString(sql);
		if(str==null){
			//request.setAttribute("message", "登录信息错误！");
			out.print("<script>" +
					"alert('账号或密码错误，请重新输入！');" +
					"window.location.href=\"index.jsp\";" +
					"</script>");
			return;
		}
		if(!checkCode.equals(piccode)){
			out.print("<script>" +
					"alert('登录失败！验证码有误');" + 
					"window.location.href=\"index.jsp\";"+
					"</script>");
			return;
		}
		else {
			session.setAttribute("user", user); 
			session.setAttribute("sf", sf); 
			//out.print("登陆成功!");
			out.print("<script>" +
					"alert('登录成功！');" + 
					"window.location.href=\"admin/index2.jsp\";"+
					"</script>");
		}
	}
	@Override
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		doGet(request, response);
	}

}

studentservlet

package servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import dao.ComBean;
import dao.Constant;

/**
*@author:gz
*@version：2023年4月15日下午4:12:49
*类说明
*/
@WebServlet("/StudentServlet")
public class StudentServlet extends HttpServlet{
	@Override
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		String method=request.getParameter("method");
		if(method.equals("add_kaoqin")){
			Add_kaoqin(request,response);
		}
		if(method.equals("add_qingjia")){
			Add_qingjia(request,response);
		}
	}
	//添加请假信息
	private void Add_qingjia(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
		// TODO 自动生成的方法存根
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		String s_name=request.getParameter("s_name");
		String s_id=request.getParameter("s_id");
		String s_class=request.getParameter("s_class");//班级
		String qj_subject=request.getParameter("qj_subject");//课程
		String liyou=request.getParameter("liyou");
		String sj=request.getParameter("sj");
		//添加审批老师
		List alist=cBean.get1Com("select s.subject_teacherId from subject as s where s.subject_name='"+qj_subject+"' and s.subject_class='"+s_class+"'",1);
		String sp_teacher=alist.get(0).toString();
		
		int flag=cBean.comUp("insert into qingjia(s_name,s_id,s_class,qj_subject,liyou,sj,sp_teacher) values('"+s_name+"','"+s_id+"','"+s_class+"','"+qj_subject+"','"+liyou+"','"+sj+"','"+sp_teacher+"')");
		if(flag==Constant.SUCCESS){
			out.print("<script>" + "alert('申请成功！');" + 
					"window.top.href=\"student/add_qingjia.jsp\";" + 
					"</script>");
			return;
		}
		else {
			out.print("<script>" + "alert('申请失败！');" + 
					"window.location.href=\"student/add_qingjia.jsp\";" + 
					"</script>");
			return;
		}
		}
	

	private void Add_kaoqin(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
		// TODO 自动生成的方法存根
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out=response.getWriter();
		ComBean cBean = new ComBean();
		HttpSession session=request.getSession();
		String username=session.getAttribute("user").toString();//签到人
		String id=request.getParameter("id");//考勤号
		String date=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(Calendar.getInstance().getTime());//签到时间
		String subject_name=request.getParameter("subject");//签到课程
		//判断是否已经
		String sql="select kaoqin_subject from kaoqin_jilu where kaoqin_user='"+username+"' and  kaoqin_id='"+id+"' ";
		String str=cBean.getString(sql);
		if(str==null){
		int flag=cBean.comUp("insert into kaoqin_jilu(kaoqin_id,kaoqin_subject,kaoqin_time,kaoqin_user) values('"+id+"','"+subject_name+"','"+date+"','"+username+"')");
		if(flag==Constant.SUCCESS){
			out.print("<script>" + "alert('签到成功！');" + 
					"window.top.href=\"student/do_daka.jsp\";" + 
					"</script>");
			return;
		}
		else {
			out.print("<script>" + "alert('签到失败！');" + 
					"window.location.href=\"student/do_daka.jsp\";" + 
					"</script>");
			return;
		}
		}else {
			out.print("<script>" + "alert('已签到过，不能重新签到！');" + 
					"window.location.href=\"student/do_daka.jsp\";" + 
					"</script>");
			return;
		}
		
	}
	@Override
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		doGet(request, response);
	}
}

代码不足之处，还请大家多多指正！

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