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基于javaweb+jsp的学生考勤管理系统

言午栩 2022-03-26 阅读 205
java-eetomcatmysql
加载失败

JavaWeb JavaBean JSP MVC MySQL Tomcat JavaScript Bootstrap

基础JSP+Servlet或JSP+SSM(Spring、SpringMVC、MyBatis)框架或JSP+SSM+Maven(pom.xml)框架或SpringBoot…均可

开发工具：eclipse/idea/myeclipse/sts等均可配置运行

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

        if (document.getElementById("recordName").value.trim().length == 0) {
            alert("姓名不能为空!");
            return false;
        }
        if (document.getElementById("recordNo").value.trim().length == 0) {
            alert("学号不能为空!");
            return false;
        }
        if (document.getElementById("recordCourse").value.trim().length == 0) {
            alert("课程不能为空!");
            return false;

    /**
     * 处理Post请求
     *
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //过滤编码
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        String action = Util.decode(request, "action");
        if ("add".equals(action)) {//增加

                </div>
            </div>
            <div class="form-group">
                <label class="col-sm-3 control-label">学号：</label>
                <div class="col-sm-5">
                    <input type="text" class="form-control" id="recordNo" name="recordNo" value="${vo.recordNo}">
                </div>
            </div>
            <div class="form-group">
                <label class="col-sm-3 control-label">课程：</label>
                <div class="col-sm-5">
                    <input type="text" class="form-control" id="recordCourse" name="recordCourse" value="${vo.recordCourse}">
                </div>
            </div>

        try {
            Connection c = Util.getConnection();
            PreparedStatement ps;
            ResultSet rs;
            String limit = (params.get("startIndex") != null && params.get("pageSize") != null) ? " limit " + params.get("startIndex") + "," + params.get("pageSize") : "";
                sqlList = "select * from `t_record` where 1=1 " + condition + " order by id asc " + limit + ";";
                ps = c.prepareStatement(sqlList);
                rs = ps.executeQuery();
                while (rs.next()) {
                    Record vo = new Record();
                    vo.setId(rs.getLong("id"));
                    vo.setRecordName(rs.getString("record_name"));
                    vo.setRecordNo(rs.getString("record_no"));
                    vo.setRecordCourse(rs.getString("record_course"));
                    vo.setRecordClass(rs.getString("record_class"));
                    vo.setRecordStatus(rs.getString("record_status"));
                    vo.setRecordTime(rs.getString("record_time"));
                    vo.setRecordText(rs.getString("record_text"));
                    list.add(vo);

/**
 * Record模块的Servlet控制层，负责接收页面传过来的请求参数，根据action参数的值来确定页面要执行的具体操作<br>
 * 而后再调用RecordService业务层的方法来处理具体的业务，最后将处理完成的结果返回或跳转至相应页面
 */
//@WebServlet("/RecordServlet")
public class RecordServlet extends HttpServlet {

    /**
     * 处理Post请求
     *
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */

     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request, response);//Get请求和Post请求的处理是一样的，所以把request、response转交给Post方法就好
    }

    /**
     * 根据参数，查询出条例条件的记录集合，最后将数据返回给调用处或者将数据集合设置到session域里，再跳转到对应的列表页面
     *
     * @param request
     * @param response
     */
    private void redirectList(HttpServletRequest request, HttpServletResponse response) throws IOException {
        //查询列和关键字
        String searchColumn = Util.decode(request, "searchColumn");

            vo.setUserSex(Util.decode(request, "userSex"));
            vo.setUserPhone(Util.decode(request, "userPhone"));
            vo.setUserText(Util.decode(request, "userText"));
            vo.setUserType(Util.decode(request, "userType"));
            UserService userService = new UserServiceImpl();
            //调用Service层增加方法（add），增加记录
            userService.add(vo);
            this.redirectList(request, response);
        } else if ("delete".equals(action)) {//删除
            //取出表要删除的用户记录的主键
            long id = Long.parseLong(Util.decode(request, "id"));

            this.redirectList(request, response);
        }
    }

    /**
     * 处理Get请求
     *
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

            </div>
        <div class="form-group">
            <label class="col-sm-3 control-label">备注：</label>
            <div class="col-sm-5">
                <textarea rows="3" class="form-control" id="studentText" name="studentText" placeholder="请输入内容......">${vo.studentText}</textarea>
            </div>
        </div>
        <div class="form-group">
            <label class="col-sm-3 control-label"></label>
            <div class="col-sm-5">
                <input type="submit" class="btn btn-grad btn-primary btn-sm" value="保存">
                <input type="button" class="btn btn-grad btn-success btn-sm" value="返回" onclick="javascript:history.back(-1);">

import java.util.List;
import java.util.Map;

/**
 * User模块的DAO层（数据层）的具体实现类，对UserDAO接口中定义的增删改查等抽象方法作出具体的功能实现
 */
public class UserDAOImpl implements UserDAO {

    //@Override
    public void add(User vo) {
        String sql = "insert into `t_user` (`username`,`password`,`real_name`,`user_sex`,`user_phone`,`user_text`,`user_type`) values(?,?,?,?,?,?,?)";
        try {
            Connection c = Util.getConnection();
            PreparedStatement ps = c.prepareStatement(sql);
            

                    Record vo = new Record();
                    vo.setId(rs.getLong("id"));
                    vo.setRecordName(rs.getString("record_name"));
                    vo.setRecordNo(rs.getString("record_no"));
                    vo.setRecordCourse(rs.getString("record_course"));
                    vo.setRecordClass(rs.getString("record_class"));
                    vo.setRecordStatus(rs.getString("record_status"));
                    vo.setRecordTime(rs.getString("record_time"));
                    vo.setRecordText(rs.getString("record_text"));
                    list.add(vo);
                }
            String sqlCount = "select count(*) from `t_record` where 1=1 " + condition;
            ps = c.prepareStatement(sqlCount);
            rs = ps.executeQuery();
            if (rs.next()) {

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * User模块的DAO层（数据层）的具体实现类，对UserDAO接口中定义的增删改查等抽象方法作出具体的功能实现
 */
public class UserDAOImpl implements UserDAO {

    //@Override
    public void add(User vo) {
        String sql = "insert into `t_user` (`username`,`password`,`real_name`,`user_sex`,`user_phone`,`user_text`,`user_type`) values(?,?,?,?,?,?,?)";
        try {
            Connection c = Util.getConnection();
            PreparedStatement ps = c.prepareStatement(sql);
            
            ps.setString(1, vo.getUsername());
            ps.setString(2, vo.getPassword());

            //调用Service层更新方法（update），更新记录
            studentService.update(vo);
            this.redirectList(request, response);
        } else if ("get".equalsIgnoreCase(action) || "editPre".equalsIgnoreCase(action)) {//根据主键ID，查询详情信息并跳转到详情页面或编辑页面
            Serializable id = Util.decode(request, "id");//取出页面传入的主键，用于查询详情
            StudentService studentService = new StudentServiceImpl();
            Student vo = studentService.get(id);
            request.getSession().setAttribute("vo", vo);
            String to = "get".equalsIgnoreCase(action) ? "info" : "edit";//判断是去详情显示页面还是编辑页面
            response.sendRedirect("student_" + to + ".jsp");
        } else {//默认去列表页面
            this.redirectList(request, response);
        }
    }

    /**
     * 处理Get请求
     *

            //取出页面传进来的各个数据，并设置到Record对象的属性里
            vo.setRecordName(Util.decode(request, "recordName"));
            vo.setRecordNo(Util.decode(request, "recordNo"));
            vo.setRecordCourse(Util.decode(request, "recordCourse"));
            vo.setRecordClass(Util.decode(request, "recordClass"));
            vo.setRecordStatus(Util.decode(request, "recordStatus"));
            vo.setRecordTime(Util.decode(request, "recordTime"));
            vo.setRecordText(Util.decode(request, "recordText"));
            RecordService recordService = new RecordServiceImpl();
            //调用Service层增加方法（add），增加记录
            recordService.add(vo);
            this.redirectList(request, response);
        } else if ("delete".equals(action)) {//删除
            //取出表要删除的考勤记录的主键
            long id = Long.parseLong(Util.decode(request, "id"));
            RecordService recordService = new RecordServiceImpl();
            //调用Service层删除方法（delete），将对应的记录删除
            recordService.delete(id);
            this.redirectList(request, response);
        } else if ("edit".equals(action)) {//修改
            //取出页面传进来的各个数据，并设置到Record对象的属性里
            Record vo = new Record();
            vo.setId(Long.valueOf(Util.decode(request, "id")));

            recordService.update(vo);
            this.redirectList(request, response);
        } else if ("get".equalsIgnoreCase(action) || "editPre".equalsIgnoreCase(action)) {//根据主键ID，查询详情信息并跳转到详情页面或编辑页面
            Serializable id = Util.decode(request, "id");//取出页面传入的主键，用于查询详情
            RecordService recordService = new RecordServiceImpl();
            Record vo = recordService.get(id);
            request.getSession().setAttribute("vo", vo);
            String to = "get".equalsIgnoreCase(action) ? "info" : "edit";//判断是去详情显示页面还是编辑页面
            response.sendRedirect("record_" + to + ".jsp");
        } else {//默认去列表页面
            this.redirectList(request, response);
        }

     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request, response);//Get请求和Post请求的处理是一样的，所以把request、response转交给Post方法就好
    }

    /**
     * 根据参数，查询出条例条件的记录集合，最后将数据返回给调用处或者将数据集合设置到session域里，再跳转到对应的列表页面
     *
     * @param request
     * @param response
     */
    private void redirectList(HttpServletRequest request, HttpServletResponse response) throws IOException {
        //查询列和关键字
        String searchColumn = Util.decode(request, "searchColumn");
        String keyword = Util.decode(request, "keyword");
        Map<String, Object> params = new HashMap();//用来保存控制层传进来的参数(查询条件)
        params.put("searchColumn", searchColumn);//要查询的列
        params.put("keyword", keyword);//查询的关键字
        CourseService courseService = new CourseServiceImpl();

//@WebServlet("/AuthServlet")
public class AuthServlet extends HttpServlet {
    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //过滤编码
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        String action = Util.decode(request, "action");
        if ("login".equalsIgnoreCase(action)) {//登录
            String username = Util.decode(request, "username");
            String password = Util.decode(request, "password");


        Integer totalRecord = (Integer) map.get("totalCount");//根据查询条件取出对应的总记录数，用于分页
        String pageNum = Util.decode(request, "pageNum");//封装分页参数
        com.demo.util.PageBean<Object> pb = new com.demo.util.PageBean(Integer.valueOf(pageNum != null ? pageNum : "1"), totalRecord);
        params.put("startIndex", pb.getStartIndex());
        params.put("pageSize", pb.getPageSize());
        List list = (List) studentService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("StudentServlet");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);
        pb.setList(list);
        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

        response.sendRedirect("student_list.jsp");
    }
}
package com.demo.servlet;

import com.demo.util.Util;
import com.demo.service.RecordService;

     *
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request, response);//Get请求和Post请求的处理是一样的，所以把request、response转交给Post方法就好
    }

            Connection c = Util.getConnection();
            PreparedStatement ps;
            ResultSet rs;
            String limit = (params.get("startIndex") != null && params.get("pageSize") != null) ? " limit " + params.get("startIndex") + "," + params.get("pageSize") : "";
                sqlList = "select * from `t_student` where 1=1 " + condition + " order by id asc " + limit + ";";
                ps = c.prepareStatement(sqlList);
                rs = ps.executeQuery();
                while (rs.next()) {
                    Student vo = new Student();
                    vo.setId(rs.getLong("id"));
                    vo.setStudentNo(rs.getString("student_no"));
                    vo.setStudentName(rs.getString("student_name"));
                    vo.setStudentSex(rs.getString("student_sex"));
                    vo.setStudentClass(rs.getString("student_class"));
                    vo.setStudentPhone(rs.getString("student_phone"));
                    vo.setStudentEmail(rs.getString("student_email"));
                    vo.setStudentText(rs.getString("student_text"));
                    list.add(vo);
                }
            String sqlCount = "select count(*) from `t_student` where 1=1 " + condition;

            </div>
            <div class="form-group">
                <label class="col-sm-3 control-label">姓名：</label>
                <div class="col-sm-5">
                    <input type="text" class="form-control" id="studentName" name="studentName" value="${vo.studentName}">
                </div>
            </div>
        <div class="form-group">
            <label class="col-sm-3 control-label">性别：</label>
            <div class="col-sm-5">
                       <input name="studentSex" type="radio" value="男" ${vo.studentSex=='男'?'checked':''}/>&nbsp;&nbsp;&nbsp;男&nbsp;&nbsp;&nbsp;&nbsp;
                       <input name="studentSex" type="radio" value="女" ${vo.studentSex=='女'?'checked':''}/>&nbsp;&nbsp;&nbsp;女&nbsp;&nbsp;&nbsp;&nbsp;
            </div>
        </div>
            <div class="form-group">

     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //过滤编码
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        String action = Util.decode(request, "action");
        if ("add".equals(action)) {//增加

        if ("add".equals(action)) {//增加
            User vo = new User();
            //取出页面传进来的各个数据，并设置到User对象的属性里
            vo.setUsername(Util.decode(request, "username"));
            vo.setPassword(Util.decode(request, "password"));
            vo.setRealName(Util.decode(request, "realName"));
            vo.setUserSex(Util.decode(request, "userSex"));
            vo.setUserPhone(Util.decode(request, "userPhone"));
            vo.setUserText(Util.decode(request, "userText"));
            vo.setUserType(Util.decode(request, "userType"));
            UserService userService = new UserServiceImpl();
            //调用Service层增加方法（add），增加记录
            userService.add(vo);
            this.redirectList(request, response);
        } else if ("delete".equals(action)) {//删除
            //取出表要删除的用户记录的主键
            long id = Long.parseLong(Util.decode(request, "id"));
            UserService userService = new UserServiceImpl();
            //调用Service层删除方法（delete），将对应的记录删除
            userService.delete(id);
            this.redirectList(request, response);
        } else if ("edit".equals(action)) {//修改

            ps.setString(2, vo.getStudentName());
            ps.setString(3, vo.getStudentSex());
            ps.setString(4, vo.getStudentClass());
            ps.setString(5, vo.getStudentPhone());
            ps.setString(6, vo.getStudentEmail());
            ps.setString(7, vo.getStudentText());
            ps.execute();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();


    /**
     * 处理Get请求
     *
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request, response);//Get请求和Post请求的处理是一样的，所以把request、response转交给Post方法就好
    }

                //  随机设置当前验证码的字符的字体
                g.setFont(new Font(fontNames[random.nextInt(3)], Font.ITALIC, height));
                //  随机获得当前验证码的字符
                char codeChar = codeChars.charAt(random.nextInt(charsLength));
                validationCode.append(codeChar);
                //  随机设置当前验证码字符的颜色
                g.setColor(getRandomColor(10, 100));
                //  在图形上输出验证码字符，x和y都是随机生成的
                g.drawString(String.valueOf(codeChar), 16 * i + random.nextInt(7), height - random.nextInt(6));
            }
            HttpSession session = request.getSession();
            session.setMaxInactiveInterval(5 * 60);
            //  将验证码保存在session对象中，key为validation_code
            session.setAttribute("validationCode", validationCode.toString());
            g.dispose();//  关闭Graphics对象
            OutputStream os = response.getOutputStream();
            ImageIO.write(image, "JPEG", os);// 以JPEG格式向客户端发送图形验证码
        } else if ("resetPassword".equalsIgnoreCase(action)) {
            String msg;
            User loginUser = (User) request.getSession().getAttribute("loginUser");

        // 保存minColor最大不会超过255
        if (minColor > 255)
            minColor = 255;
        //  保存minColor最大不会超过255
        if (maxColor > 255)
            maxColor = 255;
        //  获得红色的随机颜色值
        int red = minColor + random.nextInt(maxColor - minColor);
        //  获得绿色的随机颜色值
        int green = minColor + random.nextInt(maxColor - minColor);
        //  获得蓝色的随机颜色值
        int blue = minColor + random.nextInt(maxColor - minColor);
        return new Color(red, green, blue);
    }

import java.util.List;
import java.util.Map;

/**
 * User模块的DAO层（数据层）的具体实现类，对UserDAO接口中定义的增删改查等抽象方法作出具体的功能实现
 */
public class UserDAOImpl implements UserDAO {

    //@Override
    public void add(User vo) {
        String sql = "insert into `t_user` (`username`,`password`,`real_name`,`user_sex`,`user_phone`,`user_text`,`user_type`) values(?,?,?,?,?,?,?)";
        try {
            Connection c = Util.getConnection();
            PreparedStatement ps = c.prepareStatement(sql);
            
            ps.setString(1, vo.getUsername());
            ps.setString(2, vo.getPassword());
            ps.setString(3, vo.getRealName());
            ps.setString(4, vo.getUserSex());
            ps.setString(5, vo.getUserPhone());

                <div class="col-sm-5">
                    <input type="text" class="form-control" id="studentClass" name="studentClass" value="${vo.studentClass}">
                </div>
            </div>
            <div class="form-group">
                <label class="col-sm-3 control-label">电话：</label>
                <div class="col-sm-5">
                    <input type="text" class="form-control" id="studentPhone" name="studentPhone" value="${vo.studentPhone}">
                </div>
            </div>

运行环境

Java≥6、Tomcat≥7.0、MySQL≥5.5

开发工具

eclipse/idea/myeclipse/sts等均可配置运行

技术框架

JavaWeb JavaBean JSP MVC MySQL Tomcat JavaScript Bootstrap

基础JSP+Servlet或JSP+SSM(Spring、SpringMVC、MyBatis)框架或JSP+SSM+Maven(pom.xml)框架或SpringBoot…均可

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

功能说明

登录、注册、退出、用户模块、公告模块、课程模块、考勤模块、学生模块的增删改查管理

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document

↖[获取源码方式]见左侧

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