基于javaweb+jsp的学生考勤管理系统(JavaWeb JSP MySQL Servlet SSM SpringBoot Bootstrap)

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

            </div>
        </div>
        <div class="form-group">
            <label class="col-sm-3 control-label">所属班级：</label>
            <div class="col-sm-5">
                <input type="text" class="form-control" id="studentClass" name="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">
            </div>
        </div>
        <div class="form-group">

            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")));

            String sql = "select * from `t_record` where id = " + id;
            ResultSet rs = s.executeQuery(sql);
            if (rs.next()) {
                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"));
            }
            c.close();
        } catch (Exception e) {

        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

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

import com.demo.util.Util;
import com.demo.service.NoticeService;
import com.demo.service.impl.NoticeServiceImpl;
import com.demo.vo.Notice;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.Serializable;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**

    //@Override
    public Map<String, Object> list(Map<String, Object> params) {
        List<User> list = new ArrayList();
        int totalCount = 0;
        String condition = "";
        String sqlList;
        if (params.get("searchColumn") != null && !"".equals(params.get("searchColumn"))) {
            condition += " and `" + params.get("searchColumn") + "` like '%" + params.get("keyword") + "%'";
        }
        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_user` where 1=1 " + condition + " order by id asc " + limit + ";";
                ps = c.prepareStatement(sqlList);
                rs = ps.executeQuery();
                while (rs.next()) {
                    User vo = new User();
                    vo.setId(rs.getLong("id"));

                    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;
            ps = c.prepareStatement(sqlCount);
            rs = ps.executeQuery();
            if (rs.next()) {
                totalCount = rs.getInt(1);
            }
            rs.close();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        Map<String, Object> result = new HashMap();
        result.put("list", list);
        result.put("totalCount", totalCount);
        return result;
    }
}
package com.demo.dao.impl;

        //  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);
    }
}
package com.demo.servlet;

import com.demo.util.Util;
import com.demo.service.StudentService;
import com.demo.service.impl.StudentServiceImpl;
import com.demo.vo.Student;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.Serializable;

            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);
    }
}
package com.demo.servlet;

import com.demo.util.Util;
import com.demo.service.StudentService;
import com.demo.service.impl.StudentServiceImpl;
import com.demo.vo.Student;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;

            Connection c = Util.getConnection();
            PreparedStatement ps = c.prepareStatement(sql);
            
            ps.setString(1, vo.getRecordName());
            ps.setString(2, vo.getRecordNo());
            ps.setString(3, vo.getRecordCourse());
            ps.setString(4, vo.getRecordClass());
            ps.setString(5, vo.getRecordStatus());
            ps.setString(6, vo.getRecordTime());
            ps.setString(7, vo.getRecordText());
            ps.execute();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    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
        StudentService studentService = new StudentServiceImpl();
        Map<String, Object> map = studentService.list(params);
        request.getSession().setAttribute("list", map.get("list"));

        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());

            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User对象的属性里
            User vo = new User();
            vo.setId(Long.valueOf(Util.decode(request, "id")));
            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层更新方法（update），更新记录
            userService.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
            UserService userService = new UserServiceImpl();

            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;
        }
        if (document.getElementById("recordClass").value.trim().length == 0) {
            alert("所属班级不能为空!");
            return false;
        }
        if (document.getElementById("recordTime").value.trim().length == 0) {
            alert("时间不能为空!");
            return false;
        }
        return true;
    }

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

import com.demo.util.Util;
import com.demo.service.NoticeService;
import com.demo.service.impl.NoticeServiceImpl;
import com.demo.vo.Notice;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.Serializable;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 公告模块的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NoticeService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("/NoticeServlet")
public class NoticeServlet extends HttpServlet {

     * 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
    }

    /**
     * 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

            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
     *
     * @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
    }

    /**

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

import com.demo.util.Util;
import com.demo.service.NoticeService;
import com.demo.service.impl.NoticeServiceImpl;
import com.demo.vo.Notice;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.Serializable;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 公告模块的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NoticeService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("/NoticeServlet")
public class NoticeServlet extends HttpServlet {

    }

    //@Override
    public User get(Serializable id) {
        User vo = null;
        try {
            Connection c = Util.getConnection();
            Statement s = c.createStatement();
            String sql = "select * from `t_user` where id = " + id;
            ResultSet rs = s.executeQuery(sql);
            if (rs.next()) {
                vo = new User();
                vo.setId(rs.getLong("id"));
                vo.setUsername(rs.getString("username"));
                vo.setPassword(rs.getString("password"));

import com.demo.util.Util;
import com.demo.service.StudentService;
import com.demo.service.impl.StudentServiceImpl;
import com.demo.vo.Student;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.Serializable;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 学生模块的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StudentService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("/StudentServlet")
public class StudentServlet extends HttpServlet {

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

            if (user != null) {
                session.removeAttribute("loginUser");
            }
            response.sendRedirect("login.jsp");
        } else if ("validationCode".equalsIgnoreCase(action)) {
            String codeChars = "0123456789";// 图形验证码的字符集合，系统将随机从这个字符串中选择一些字符作为验证码
            //  获得验证码集合的长度
            int charsLength = codeChars.length();
            //  下面三条记录是关闭客户端浏览器的缓冲区
            //  这三条语句都可以关闭浏览器的缓冲区，但是由于浏览器的版本不同，对这三条语句的支持也不同
            //  因此，为了保险起见，建议同时使用这三条语句来关闭浏览器的缓冲区
            response.setHeader("ragma", "No-cache");
            response.setHeader("Cache-Control", "no-cache");
            response.setDateHeader("Expires", 0);
            //  设置图形验证码的长和宽（图形的大小）
            int width = 90, height = 20;
            BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
            Graphics g = image.getGraphics();//  获得用于输出文字的Graphics对象
            Random random = new Random();
            g.setColor(getRandomColor(180, 250));// 随机设置要填充的颜色
            g.fillRect(0, 0, width, height);//  填充图形背景
            //  设置初始字体
            g.setFont(new Font("Times New Roman", Font.ITALIC, height));

    @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
            Record vo = new Record();
            //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);

            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();
        }
    }

    //@Override
    public void update(Student vo) {
        String sql = "update `t_student` set `student_no` = ? ,`student_name` = ? ,`student_sex` = ? ,`student_class` = ? ,`student_phone` = ? ,`student_email` = ? ,`student_text` = ?  where `id` = ?";

     *
     * @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
            Student vo = new Student();
            //取出页面传进来的各个数据，并设置到Student对象的属性里
            vo.setStudentNo(Util.decode(request, "studentNo"));
            vo.setStudentName(Util.decode(request, "studentName"));
            vo.setStudentSex(Util.decode(request, "studentSex"));
            vo.setStudentClass(Util.decode(request, "studentClass"));

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