IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统

目录

一、系统介绍

1.开发环境

2.技术选型

3.系统功能

4.数据库

5.工程截图

二、系统展示

1.登录界面

2.学生-主页面

3.学生-缺勤记录

4.学生-修改密码

5.宿舍管理员-主页面

6.宿舍管理员-学生查看

7.宿舍管理员-缺勤记录

8.宿舍管理员-修改密码

9.系统管理员-主页面

10.系统管理员-宿舍管理员管理

11.系统管理员-学生管理

12.系统管理员-宿舍楼管理

13.系统管理员-缺勤记录

14.系统管理员-修改密码

三、部分代码

DormBuildDao

DormManagerDao

RecordDao

StudentDao

UserDao

PropertiesUtil

login.jsp

mainAdmin.jsp

mainManager.jsp

mainStudent.jsp

四、其他

1.其他系统实现

1.JavaWeb系统系列实现

2.JavaSwing系统系列实现

2.获取源码

3.运行项目

4.备注

5.支持博主


一、系统介绍


1.开发环境

开发工具:IDEA2018.2

JDK版本:jdk1.8

Mysql版本:8.0.13


2.技术选型

1.后端:使用Java+Servlet进行开发,使用过滤器来验证用户是否登录,使用MVC进行分层。

2.数据库:使用JDBC连接数据库,使用getResourceAsStream获取数据库配置文件的信息。

3.前端:使用Bootstrap作为前端框架来开发,使用到jstl来遍历数据。jsp来展示页面。

3.系统功能

1.学生

1.登录系统

2.缺勤记录

缺勤记录查询

3.修改密码

4.退出系统

2.宿舍管理员

1.登录系统

2.学生查看

查看学生信息

3.缺勤记录管理

缺勤记录的增删改查。

4.修改密码

5.退出系统

3.系统管理员

1.登录系统

2.宿舍管理员管理

宿舍管理员信息的增删改查。

3.学生信息管理

学生信息的增删改查。

4.宿舍楼信息管理

宿舍楼信息的增删改查。

5.缺勤记录管理

缺勤记录删除

6.修改密码

7.退出系统

4.数据库

/*
 Navicat Premium Data Transfer

 Source Server         : Mysql
 Source Server Type    : MySQL
 Source Server Version : 80013
 Source Host           : localhost:3306
 Source Schema         : jsp_servlet_drom

 Target Server Type    : MySQL
 Target Server Version : 80013
 File Encoding         : 65001

 Date: 22/07/2021 20:46:38
*/

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- ----------------------------
-- Table structure for t_admin
-- ----------------------------
DROP TABLE IF EXISTS `t_admin`;
CREATE TABLE `t_admin`  (
  `adminId` int(11) NOT NULL AUTO_INCREMENT,
  `userName` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `password` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `name` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `sex` varchar(10) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `tel` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  PRIMARY KEY (`adminId`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 2 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of t_admin
-- ----------------------------
INSERT INTO `t_admin` VALUES (1, 'admin', 'admin', '管理员', '男', '1828888888');

-- ----------------------------
-- Table structure for t_dorm
-- ----------------------------
DROP TABLE IF EXISTS `t_dorm`;
CREATE TABLE `t_dorm`  (
  `dormId` int(11) NOT NULL AUTO_INCREMENT,
  `dormBuildId` int(11) NULL DEFAULT NULL,
  `dormName` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `dormType` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `dormNumber` int(11) NULL DEFAULT NULL,
  `dormTel` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  PRIMARY KEY (`dormId`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 2 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of t_dorm
-- ----------------------------
INSERT INTO `t_dorm` VALUES (1, 1, '220', '男', 4, '110');

-- ----------------------------
-- Table structure for t_dormbuild
-- ----------------------------
DROP TABLE IF EXISTS `t_dormbuild`;
CREATE TABLE `t_dormbuild`  (
  `dormBuildId` int(11) NOT NULL AUTO_INCREMENT,
  `dormBuildName` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `dormBuildDetail` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  PRIMARY KEY (`dormBuildId`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 9 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of t_dormbuild
-- ----------------------------
INSERT INTO `t_dormbuild` VALUES (1, '1栋', '一栋信息介绍');
INSERT INTO `t_dormbuild` VALUES (2, '2栋', '二栋信息介绍');
INSERT INTO `t_dormbuild` VALUES (3, '3栋', '三栋信息介绍');
INSERT INTO `t_dormbuild` VALUES (4, '4栋', '四栋信息介绍');
INSERT INTO `t_dormbuild` VALUES (5, '5栋', '五栋信息介绍');

-- ----------------------------
-- Table structure for t_dormmanager
-- ----------------------------
DROP TABLE IF EXISTS `t_dormmanager`;
CREATE TABLE `t_dormmanager`  (
  `dormManId` int(11) NOT NULL AUTO_INCREMENT,
  `userName` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `password` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `dormBuildId` int(11) NULL DEFAULT NULL,
  `name` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `sex` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `tel` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  PRIMARY KEY (`dormManId`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 10 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of t_dormmanager
-- ----------------------------
INSERT INTO `t_dormmanager` VALUES (1, 'dromadmin', '123456', 4, '宿舍管理员', '男', '18212346589');

-- ----------------------------
-- Table structure for t_record
-- ----------------------------
DROP TABLE IF EXISTS `t_record`;
CREATE TABLE `t_record`  (
  `recordId` int(11) NOT NULL AUTO_INCREMENT,
  `studentNumber` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `studentName` varchar(30) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `dormBuildId` int(11) NULL DEFAULT NULL,
  `dormName` varchar(11) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `date` date NULL DEFAULT NULL,
  `detail` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  PRIMARY KEY (`recordId`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 8 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of t_record
-- ----------------------------
INSERT INTO `t_record` VALUES (1, '001', '李四', 4, '120', '2014-01-01', '回家');

-- ----------------------------
-- Table structure for t_student
-- ----------------------------
DROP TABLE IF EXISTS `t_student`;
CREATE TABLE `t_student`  (
  `studentId` int(11) NOT NULL AUTO_INCREMENT,
  `stuNum` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `password` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `name` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `dormBuildId` int(11) NULL DEFAULT NULL,
  `dormName` varchar(11) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `sex` varchar(10) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `tel` varchar(15) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  PRIMARY KEY (`studentId`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 32 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of t_student
-- ----------------------------
INSERT INTO `t_student` VALUES (1, '001', '123456', '李四', 4, '120', '男', '123456');
INSERT INTO `t_student` VALUES (2, '002', '123456', '王五', 5, '201', '男', '123456');

SET FOREIGN_KEY_CHECKS = 1;

5.工程截图

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第1张图片

 

二、系统展示

1.登录界面

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第2张图片

 

2.学生-主页面

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第3张图片

 

3.学生-缺勤记录

 IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第4张图片

 

4.学生-修改密码

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第5张图片

 

5.宿舍管理员-主页面

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第6张图片

 

6.宿舍管理员-学生查看

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第7张图片

 

7.宿舍管理员-缺勤记录

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第8张图片

 

8.宿舍管理员-修改密码

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第9张图片

 

9.系统管理员-主页面

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第10张图片

 

10.系统管理员-宿舍管理员管理

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第11张图片

 

11.系统管理员-学生管理

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第12张图片

 

12.系统管理员-宿舍楼管理

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第13张图片

 

13.系统管理员-缺勤记录

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第14张图片

 

14.系统管理员-修改密码

IDEA+Java+Servlet+JSP+Bootstrap+Mysql实现Web学生宿舍管理系统_第15张图片

三、部分代码

DormBuildDao

package com.lero.dao;

import com.lero.model.DormBuild;
import com.lero.model.DormManager;
import com.lero.model.PageBean;
import com.lero.util.StringUtil;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;

public class DormBuildDao {

    public static String dormBuildName(Connection con, int dormBuildId) throws Exception {
        String sql = "select * from t_dormBuild where dormBuildId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setInt(1, dormBuildId);
        ResultSet rs = pstmt.executeQuery();
        if (rs.next()) {
            return rs.getString("dormBuildName");
        }
        return null;
    }

    public List dormBuildList(Connection con, PageBean pageBean, DormBuild s_dormBuild) throws Exception {
        List dormBuildList = new ArrayList();
        StringBuffer sb = new StringBuffer("select * from t_dormBuild t1");
        if (StringUtil.isNotEmpty(s_dormBuild.getDormBuildName())) {
            sb.append(" where t1.dormBuildName like '%" + s_dormBuild.getDormBuildName() + "%'");
        }
        if (pageBean != null) {
            sb.append(" limit " + pageBean.getStart() + "," + pageBean.getPageSize());
        }
        PreparedStatement pstmt = con.prepareStatement(sb.toString());
        ResultSet rs = pstmt.executeQuery();
        while (rs.next()) {
            DormBuild dormBuild = new DormBuild();
            dormBuild.setDormBuildId(rs.getInt("dormBuildId"));
            dormBuild.setDormBuildName(rs.getString("dormBuildName"));
            dormBuild.setDetail(rs.getString("dormBuildDetail"));
            dormBuildList.add(dormBuild);
        }
        return dormBuildList;
    }

    public int dormBuildCount(Connection con, DormBuild s_dormBuild) throws Exception {
        StringBuffer sb = new StringBuffer("select count(*) as total from t_dormBuild t1");
        if (StringUtil.isNotEmpty(s_dormBuild.getDormBuildName())) {
            sb.append(" where t1.dormBuildName like '%" + s_dormBuild.getDormBuildName() + "%'");
        }
        PreparedStatement pstmt = con.prepareStatement(sb.toString());
        ResultSet rs = pstmt.executeQuery();
        if (rs.next()) {
            return rs.getInt("total");
        } else {
            return 0;
        }
    }

    public DormBuild dormBuildShow(Connection con, String dormBuildId) throws Exception {
        String sql = "select * from t_dormBuild t1 where t1.dormBuildId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, dormBuildId);
        ResultSet rs = pstmt.executeQuery();
        DormBuild dormBuild = new DormBuild();
        if (rs.next()) {
            dormBuild.setDormBuildId(rs.getInt("dormBuildId"));
            dormBuild.setDormBuildName(rs.getString("dormBuildName"));
            dormBuild.setDetail(rs.getString("dormBuildDetail"));
        }
        return dormBuild;
    }

    public int dormBuildAdd(Connection con, DormBuild dormBuild) throws Exception {
        String sql = "insert into t_dormBuild values(null,?,?)";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, dormBuild.getDormBuildName());
        pstmt.setString(2, dormBuild.getDetail());
        return pstmt.executeUpdate();
    }

    public int dormBuildDelete(Connection con, String dormBuildId) throws Exception {
        String sql = "delete from t_dormBuild where dormBuildId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, dormBuildId);
        return pstmt.executeUpdate();
    }

    public int dormBuildUpdate(Connection con, DormBuild dormBuild) throws Exception {
        String sql = "update t_dormBuild set dormBuildName=?,dormBuildDetail=? where dormBuildId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, dormBuild.getDormBuildName());
        pstmt.setString(2, dormBuild.getDetail());
        pstmt.setInt(3, dormBuild.getDormBuildId());
        return pstmt.executeUpdate();
    }

    public boolean existManOrDormWithId(Connection con, String dormBuildId) throws Exception {
        boolean isExist = false;
//		String sql="select * from t_dormBuild,t_dormManager,t_connection where dormManId=managerId and dormBuildId=buildId and dormBuildId=?";
        String sql = "select *from t_dormManager where dormBuildId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, dormBuildId);
        ResultSet rs = pstmt.executeQuery();
        if (rs.next()) {
            isExist = true;
        } else {
            isExist = false;
        }
        String sql1 = "select * from t_dormBuild t1,t_dorm t2 where t1.dormBuildId=t2.dormBuildId and t1.dormBuildId=?";
        PreparedStatement p = con.prepareStatement(sql1);
        p.setString(1, dormBuildId);
        ResultSet r = pstmt.executeQuery();
        if (r.next()) {
            return isExist;
        } else {
            return false;
        }
    }

    public List dormManWithoutBuild(Connection con) throws Exception {
        List dormManagerList = new ArrayList();
        String sql = "SELECT * FROM t_dormManager WHERE dormBuildId IS NULL OR dormBuildId=0";
        PreparedStatement pstmt = con.prepareStatement(sql);
        ResultSet rs = pstmt.executeQuery();
        while (rs.next()) {
            DormManager dormManager = new DormManager();
            dormManager.setDormBuildId(rs.getInt("dormBuildId"));
            dormManager.setDormManagerId(rs.getInt("dormManId"));
            dormManager.setName(rs.getString("name"));
            dormManager.setUserName(rs.getString("userName"));
            dormManager.setSex(rs.getString("sex"));
            dormManager.setTel(rs.getString("tel"));
            dormManagerList.add(dormManager);
        }
        return dormManagerList;
    }

    public List dormManWithBuildId(Connection con, String dormBuildId) throws Exception {
        List dormManagerList = new ArrayList();
        String sql = "select *from t_dormManager where dormBuildId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, dormBuildId);
        ResultSet rs = pstmt.executeQuery();
        while (rs.next()) {
            DormManager dormManager = new DormManager();
            dormManager.setDormBuildId(rs.getInt("dormBuildId"));
            dormManager.setDormManagerId(rs.getInt("dormManId"));
            dormManager.setName(rs.getString("name"));
            dormManager.setUserName(rs.getString("userName"));
            dormManager.setSex(rs.getString("sex"));
            dormManager.setTel(rs.getString("tel"));
            dormManagerList.add(dormManager);
        }
        return dormManagerList;
    }

    public int managerUpdateWithId(Connection con, String dormManagerId, String dormBuildId) throws Exception {
        String sql = "update t_dormManager set dormBuildId=? where dormManId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, dormBuildId);
        pstmt.setString(2, dormManagerId);
        return pstmt.executeUpdate();
    }
}

DormManagerDao

package com.lero.dao;

import com.lero.model.DormManager;
import com.lero.model.PageBean;
import com.lero.util.StringUtil;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;

public class DormManagerDao {

    public List dormManagerList(Connection con, PageBean pageBean, DormManager s_dormManager) throws Exception {
        List dormManagerList = new ArrayList();
        StringBuffer sb = new StringBuffer("SELECT * FROM t_dormManager t1 ORDER BY t1.userName");
        if (StringUtil.isNotEmpty(s_dormManager.getName())) {
            sb.append(" where t1.name like '%" + s_dormManager.getName() + "%'");
        } else if (StringUtil.isNotEmpty(s_dormManager.getUserName())) {
            sb.append(" where t1.userName like '%" + s_dormManager.getUserName() + "%'");
        }
        if (pageBean != null) {
            sb.append(" limit " + pageBean.getStart() + "," + pageBean.getPageSize());
        }
        PreparedStatement pstmt = con.prepareStatement(sb.toString());
        ResultSet rs = pstmt.executeQuery();
        while (rs.next()) {
            DormManager dormManager = new DormManager();
            dormManager.setDormManagerId(rs.getInt("dormManId"));
            int dormBuildId = rs.getInt("dormBuildId");
            dormManager.setDormBuildId(dormBuildId);
            dormManager.setDormBuildName(DormBuildDao.dormBuildName(con, dormBuildId));
            dormManager.setName(rs.getString("name"));
            dormManager.setSex(rs.getString("sex"));
            dormManager.setUserName(rs.getString("userName"));
            dormManager.setTel(rs.getString("tel"));
            dormManager.setPassword(rs.getString("password"));
            dormManagerList.add(dormManager);
        }
        return dormManagerList;
    }

    public int dormManagerCount(Connection con, DormManager s_dormManager) throws Exception {
        StringBuffer sb = new StringBuffer("select count(*) as total from t_dormManager t1");
        if (StringUtil.isNotEmpty(s_dormManager.getName())) {
            sb.append(" where t1.name like '%" + s_dormManager.getName() + "%'");
        } else if (StringUtil.isNotEmpty(s_dormManager.getUserName())) {
            sb.append(" where t1.userName like '%" + s_dormManager.getUserName() + "%'");
        }
        PreparedStatement pstmt = con.prepareStatement(sb.toString());
        ResultSet rs = pstmt.executeQuery();
        if (rs.next()) {
            return rs.getInt("total");
        } else {
            return 0;
        }
    }

    public DormManager dormManagerShow(Connection con, String dormManagerId) throws Exception {
        String sql = "select * from t_dormManager t1 where t1.dormManId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, dormManagerId);
        ResultSet rs = pstmt.executeQuery();
        DormManager dormManager = new DormManager();
        if (rs.next()) {
            dormManager.setDormManagerId(rs.getInt("dormManId"));
            dormManager.setDormBuildId(rs.getInt("dormBuildId"));
            dormManager.setName(rs.getString("name"));
            dormManager.setSex(rs.getString("sex"));
            dormManager.setUserName(rs.getString("userName"));
            dormManager.setTel(rs.getString("tel"));
            dormManager.setPassword(rs.getString("password"));
        }
        return dormManager;
    }

    public int dormManagerAdd(Connection con, DormManager dormManager) throws Exception {
        String sql = "insert into t_dormManager values(null,?,?,null,?,?,?)";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, dormManager.getUserName());
        pstmt.setString(2, dormManager.getPassword());
        pstmt.setString(3, dormManager.getName());
        pstmt.setString(4, dormManager.getSex());
        pstmt.setString(5, dormManager.getTel());
        return pstmt.executeUpdate();
    }

    public int dormManagerDelete(Connection con, String dormManagerId) throws Exception {
        String sql = "delete from t_dormManager where dormManId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, dormManagerId);
        return pstmt.executeUpdate();
    }

    public int dormManagerUpdate(Connection con, DormManager dormManager) throws Exception {
        String sql = "update t_dormManager set userName=?,password=?,name=?,sex=?,tel=? where dormManId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, dormManager.getUserName());
        pstmt.setString(2, dormManager.getPassword());
        pstmt.setString(3, dormManager.getName());
        pstmt.setString(4, dormManager.getSex());
        pstmt.setString(5, dormManager.getTel());
        pstmt.setInt(6, dormManager.getDormManagerId());
        return pstmt.executeUpdate();
    }

    public boolean haveManagerByUser(Connection con, String userName) throws Exception {
        String sql = "select * from t_dormmanager t1 where t1.userName=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, userName);
        ResultSet rs = pstmt.executeQuery();
        if (rs.next()) {
            return true;
        }
        return false;
    }


}

RecordDao

package com.lero.dao;

import com.lero.model.DormBuild;
import com.lero.model.Record;
import com.lero.util.StringUtil;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;

public class RecordDao {
    public List recordList(Connection con, Record s_record) throws Exception {
        List recordList = new ArrayList();
        StringBuffer sb = new StringBuffer("select * from t_record t1");
        if (StringUtil.isNotEmpty(s_record.getStudentNumber())) {
            sb.append(" and t1.studentNumber like '%" + s_record.getStudentNumber() + "%'");
        } else if (StringUtil.isNotEmpty(s_record.getStudentName())) {
            sb.append(" and t1.studentName like '%" + s_record.getStudentName() + "%'");
        }
        if (s_record.getDormBuildId() != 0) {
            sb.append(" and t1.dormBuildId=" + s_record.getDormBuildId());
        }
        if (StringUtil.isNotEmpty(s_record.getDate())) {
            sb.append(" and t1.date=" + s_record.getDate());
        }
        if (StringUtil.isNotEmpty(s_record.getStartDate())) {
            sb.append(" and TO_DAYS(t1.date)>=TO_DAYS('" + s_record.getStartDate() + "')");
        }
        if (StringUtil.isNotEmpty(s_record.getEndDate())) {
            sb.append(" and TO_DAYS(t1.date)<=TO_DAYS('" + s_record.getEndDate() + "')");
        }
        PreparedStatement pstmt = con.prepareStatement(sb.toString().replaceFirst("and", "where"));
        ResultSet rs = pstmt.executeQuery();
        while (rs.next()) {
            Record record = new Record();
            record.setRecordId(rs.getInt("recordId"));
            record.setStudentNumber(rs.getString("studentNumber"));
            record.setStudentName(rs.getString("studentName"));
            int dormBuildId = rs.getInt("dormBuildId");
            record.setDormBuildId(dormBuildId);
            record.setDormBuildName(DormBuildDao.dormBuildName(con, dormBuildId));
            record.setDormName(rs.getString("dormName"));
            record.setDate(rs.getString("date"));
            record.setDetail(rs.getString("detail"));
            recordList.add(record);
        }
        return recordList;
    }

    public List recordListWithBuild(Connection con, Record s_record, int buildId) throws Exception {
        List recordList = new ArrayList();
        StringBuffer sb = new StringBuffer("select * from t_record t1");
        if (StringUtil.isNotEmpty(s_record.getStudentNumber())) {
            sb.append(" and t1.studentNumber like '%" + s_record.getStudentNumber() + "%'");
        } else if (StringUtil.isNotEmpty(s_record.getStudentName())) {
            sb.append(" and t1.studentName like '%" + s_record.getStudentName() + "%'");
        }
        sb.append(" and t1.dormBuildId=" + buildId);
        if (StringUtil.isNotEmpty(s_record.getStartDate())) {
            sb.append(" and TO_DAYS(t1.date)>=TO_DAYS('" + s_record.getStartDate() + "')");
        }
        if (StringUtil.isNotEmpty(s_record.getEndDate())) {
            sb.append(" and TO_DAYS(t1.date)<=TO_DAYS('" + s_record.getEndDate() + "')");
        }
        PreparedStatement pstmt = con.prepareStatement(sb.toString().replaceFirst("and", "where"));
        ResultSet rs = pstmt.executeQuery();
        while (rs.next()) {
            Record record = new Record();
            record.setRecordId(rs.getInt("recordId"));
            record.setStudentNumber(rs.getString("studentNumber"));
            record.setStudentName(rs.getString("studentName"));
            int dormBuildId = rs.getInt("dormBuildId");
            record.setDormBuildId(dormBuildId);
            record.setDormBuildName(DormBuildDao.dormBuildName(con, dormBuildId));
            record.setDormName(rs.getString("dormName"));
            record.setDate(rs.getString("date"));
            record.setDetail(rs.getString("detail"));
            recordList.add(record);
        }
        return recordList;
    }

    public List recordListWithNumber(Connection con, Record s_record, String studentNumber) throws Exception {
        List recordList = new ArrayList();
        StringBuffer sb = new StringBuffer("select * from t_record t1");
        if (StringUtil.isNotEmpty(studentNumber)) {
            sb.append(" and t1.studentNumber =" + studentNumber);
        }
        if (StringUtil.isNotEmpty(s_record.getStartDate())) {
            sb.append(" and TO_DAYS(t1.date)>=TO_DAYS('" + s_record.getStartDate() + "')");
        }
        if (StringUtil.isNotEmpty(s_record.getEndDate())) {
            sb.append(" and TO_DAYS(t1.date)<=TO_DAYS('" + s_record.getEndDate() + "')");
        }
        PreparedStatement pstmt = con.prepareStatement(sb.toString().replaceFirst("and", "where"));
        ResultSet rs = pstmt.executeQuery();
        while (rs.next()) {
            Record record = new Record();
            record.setRecordId(rs.getInt("recordId"));
            record.setStudentNumber(rs.getString("studentNumber"));
            record.setStudentName(rs.getString("studentName"));
            int dormBuildId = rs.getInt("dormBuildId");
            record.setDormBuildId(dormBuildId);
            record.setDormBuildName(DormBuildDao.dormBuildName(con, dormBuildId));
            record.setDormName(rs.getString("dormName"));
            record.setDate(rs.getString("date"));
            record.setDetail(rs.getString("detail"));
            recordList.add(record);
        }
        return recordList;
    }

    public List dormBuildList(Connection con) throws Exception {
        List dormBuildList = new ArrayList();
        String sql = "select * from t_dormBuild";
        PreparedStatement pstmt = con.prepareStatement(sql);
        ResultSet rs = pstmt.executeQuery();
        while (rs.next()) {
            DormBuild dormBuild = new DormBuild();
            dormBuild.setDormBuildId(rs.getInt("dormBuildId"));
            dormBuild.setDormBuildName(rs.getString("dormBuildName"));
            dormBuild.setDetail(rs.getString("dormBuildDetail"));
            dormBuildList.add(dormBuild);
        }
        return dormBuildList;
    }
//	
//	public int studentCount(Connection con, Student s_student)throws Exception {
//		StringBuffer sb = new StringBuffer("select count(*) as total from t_student t1");
//		if(StringUtil.isNotEmpty(s_student.getName())) {
//			sb.append(" and t1.name like '%"+s_student.getName()+"%'");
//		} else if(StringUtil.isNotEmpty(s_student.getStuNumber())) {
//			sb.append(" and t1.stuNum like '%"+s_student.getStuNumber()+"%'");
//		} else if(StringUtil.isNotEmpty(s_student.getDormName())) {
//			sb.append(" and t1.dormName like '%"+s_student.getDormName()+"%'");
//		}
//		if(s_student.getDormBuildId()!=0) {
//			sb.append(" and t1.dormBuildId="+s_student.getDormBuildId());
//		}
//		PreparedStatement pstmt = con.prepareStatement(sb.toString().replaceFirst("and", "where"));
//		ResultSet rs = pstmt.executeQuery();
//		if(rs.next()) {
//			return rs.getInt("total");
//		} else {
//			return 0;
//		}
//	}

    public Record recordShow(Connection con, String recordId) throws Exception {
        String sql = "select * from t_record t1 where t1.recordId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, recordId);
        ResultSet rs = pstmt.executeQuery();
        Record record = new Record();
        if (rs.next()) {
            record.setRecordId(rs.getInt("recordId"));
            record.setStudentNumber(rs.getString("studentNumber"));
            record.setStudentName(rs.getString("studentName"));
            int dormBuildId = rs.getInt("dormBuildId");
            record.setDormBuildId(dormBuildId);
            record.setDormBuildName(DormBuildDao.dormBuildName(con, dormBuildId));
            record.setDormName(rs.getString("dormName"));
            record.setDate(rs.getString("date"));
            record.setDetail(rs.getString("detail"));
        }
        return record;
    }

    public int recordAdd(Connection con, Record record) throws Exception {
        String sql = "insert into t_record values(null,?,?,?,?,?,?)";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, record.getStudentNumber());
        pstmt.setString(2, record.getStudentName());
        pstmt.setInt(3, record.getDormBuildId());
        pstmt.setString(4, record.getDormName());
        pstmt.setString(5, record.getDate());
        pstmt.setString(6, record.getDetail());
        return pstmt.executeUpdate();
    }

    public int recordDelete(Connection con, String recordId) throws Exception {
        String sql = "delete from t_record where recordId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, recordId);
        return pstmt.executeUpdate();
    }

    public int recordUpdate(Connection con, Record record) throws Exception {
        String sql = "update t_record set studentNumber=?,studentName=?,dormBuildId=?,dormName=?,detail=? where recordId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, record.getStudentNumber());
        pstmt.setString(2, record.getStudentName());
        pstmt.setInt(3, record.getDormBuildId());
        pstmt.setString(4, record.getDormName());
        pstmt.setString(5, record.getDetail());
        pstmt.setInt(6, record.getRecordId());
        return pstmt.executeUpdate();
    }


}

StudentDao

package com.lero.dao;

import com.lero.model.DormBuild;
import com.lero.model.Student;
import com.lero.util.StringUtil;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;

public class StudentDao {

//	public List studentList(Connection con, PageBean pageBean, Student s_student)throws Exception {
//		List studentList = new ArrayList();
//		StringBuffer sb = new StringBuffer("select * from t_student t1");
//		if(StringUtil.isNotEmpty(s_student.getName())) {
//			sb.append(" and t1.name like '%"+s_student.getName()+"%'");
//		} else if(StringUtil.isNotEmpty(s_student.getStuNumber())) {
//			sb.append(" and t1.stuNum like '%"+s_student.getStuNumber()+"%'");
//		} else if(StringUtil.isNotEmpty(s_student.getDormName())) {
//			sb.append(" and t1.dormName like '%"+s_student.getDormName()+"%'");
//		}
//		if(s_student.getDormBuildId()!=0) {
//			sb.append(" and t1.dormBuildId="+s_student.getDormBuildId());
//		}
//		if(pageBean != null) {
//			sb.append(" limit "+pageBean.getStart()+","+pageBean.getPageSize());
//		}
//		PreparedStatement pstmt = con.prepareStatement(sb.toString().replaceFirst("and", "where"));
//		ResultSet rs = pstmt.executeQuery();
//		while(rs.next()) {
//			Student student=new Student();
//			student.setStudentId(rs.getInt("studentId"));
//			int dormBuildId = rs.getInt("dormBuildId");
//			student.setDormBuildId(dormBuildId);
//			student.setDormBuildName(DormBuildDao.dormBuildName(con, dormBuildId));
//			student.setDormName(rs.getString("dormName"));
//			student.setName(rs.getString("name"));
//			student.setSex(rs.getString("sex"));
//			student.setStuNumber(rs.getString("stuNum"));
//			student.setTel(rs.getString("tel"));
//			student.setPassword(rs.getString("password"));
//			studentList.add(student);
//		}
//		return studentList;
//	}

    public static Student getNameById(Connection con, String studentNumber, int dormBuildId) throws Exception {
        String sql = "select * from t_student t1 where t1.stuNum=? and t1.dormBuildId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, studentNumber);
        pstmt.setInt(2, dormBuildId);
        ResultSet rs = pstmt.executeQuery();
        Student student = new Student();
        if (rs.next()) {
            student.setName(rs.getString("name"));
            student.setDormBuildId(rs.getInt("dormBuildId"));
            student.setDormName(rs.getString("dormName"));
        }
        return student;
    }

    public List studentList(Connection con, Student s_student) throws Exception {
        List studentList = new ArrayList();
        StringBuffer sb = new StringBuffer("select * from t_student t1");
        if (StringUtil.isNotEmpty(s_student.getName())) {
            sb.append(" and t1.name like '%" + s_student.getName() + "%'");
        } else if (StringUtil.isNotEmpty(s_student.getStuNumber())) {
            sb.append(" and t1.stuNum like '%" + s_student.getStuNumber() + "%'");
        } else if (StringUtil.isNotEmpty(s_student.getDormName())) {
            sb.append(" and t1.dormName like '%" + s_student.getDormName() + "%'");
        }
        if (s_student.getDormBuildId() != 0) {
            sb.append(" and t1.dormBuildId=" + s_student.getDormBuildId());
        }
        PreparedStatement pstmt = con.prepareStatement(sb.toString().replaceFirst("and", "where"));
        ResultSet rs = pstmt.executeQuery();
        while (rs.next()) {
            Student student = new Student();
            student.setStudentId(rs.getInt("studentId"));
            int dormBuildId = rs.getInt("dormBuildId");
            student.setDormBuildId(dormBuildId);
            student.setDormBuildName(DormBuildDao.dormBuildName(con, dormBuildId));
            student.setDormName(rs.getString("dormName"));
            student.setName(rs.getString("name"));
            student.setSex(rs.getString("sex"));
            student.setStuNumber(rs.getString("stuNum"));
            student.setTel(rs.getString("tel"));
            student.setPassword(rs.getString("password"));
            studentList.add(student);
        }
        return studentList;
    }

    public boolean haveNameByNumber(Connection con, String studentNumber) throws Exception {
        String sql = "select * from t_student t1 where t1.stuNum=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, studentNumber);
        ResultSet rs = pstmt.executeQuery();
        Student student = new Student();
        if (rs.next()) {
            student.setName(rs.getString("name"));
            student.setDormBuildId(rs.getInt("dormBuildId"));
            student.setDormName(rs.getString("dormName"));
            return true;
        }
        return false;
    }

    public List studentListWithBuild(Connection con, Student s_student, int buildId) throws Exception {
        List studentList = new ArrayList();
        StringBuffer sb = new StringBuffer("select * from t_student t1");
        if (StringUtil.isNotEmpty(s_student.getName())) {
            sb.append(" and t1.name like '%" + s_student.getName() + "%'");
        } else if (StringUtil.isNotEmpty(s_student.getStuNumber())) {
            sb.append(" and t1.stuNum like '%" + s_student.getStuNumber() + "%'");
        } else if (StringUtil.isNotEmpty(s_student.getDormName())) {
            sb.append(" and t1.dormName like '%" + s_student.getDormName() + "%'");
        }
        sb.append(" and t1.dormBuildId=" + buildId);
        PreparedStatement pstmt = con.prepareStatement(sb.toString().replaceFirst("and", "where"));
        ResultSet rs = pstmt.executeQuery();
        while (rs.next()) {
            Student student = new Student();
            student.setStudentId(rs.getInt("studentId"));
            int dormBuildId = rs.getInt("dormBuildId");
            student.setDormBuildId(dormBuildId);
            student.setDormBuildName(DormBuildDao.dormBuildName(con, dormBuildId));
            student.setDormName(rs.getString("dormName"));
            student.setName(rs.getString("name"));
            student.setSex(rs.getString("sex"));
            student.setStuNumber(rs.getString("stuNum"));
            student.setTel(rs.getString("tel"));
            student.setPassword(rs.getString("password"));
            studentList.add(student);
        }
        return studentList;
    }

    public List dormBuildList(Connection con) throws Exception {
        List dormBuildList = new ArrayList();
        String sql = "select * from t_dormBuild";
        PreparedStatement pstmt = con.prepareStatement(sql);
        ResultSet rs = pstmt.executeQuery();
        while (rs.next()) {
            DormBuild dormBuild = new DormBuild();
            dormBuild.setDormBuildId(rs.getInt("dormBuildId"));
            dormBuild.setDormBuildName(rs.getString("dormBuildName"));
            dormBuild.setDetail(rs.getString("dormBuildDetail"));
            dormBuildList.add(dormBuild);
        }
        return dormBuildList;
    }

    public int studentCount(Connection con, Student s_student) throws Exception {
        StringBuffer sb = new StringBuffer("select count(*) as total from t_student t1");
        if (StringUtil.isNotEmpty(s_student.getName())) {
            sb.append(" and t1.name like '%" + s_student.getName() + "%'");
        } else if (StringUtil.isNotEmpty(s_student.getStuNumber())) {
            sb.append(" and t1.stuNum like '%" + s_student.getStuNumber() + "%'");
        } else if (StringUtil.isNotEmpty(s_student.getDormName())) {
            sb.append(" and t1.dormName like '%" + s_student.getDormName() + "%'");
        }
        if (s_student.getDormBuildId() != 0) {
            sb.append(" and t1.dormBuildId=" + s_student.getDormBuildId());
        }
        PreparedStatement pstmt = con.prepareStatement(sb.toString().replaceFirst("and", "where"));
        ResultSet rs = pstmt.executeQuery();
        if (rs.next()) {
            return rs.getInt("total");
        } else {
            return 0;
        }
    }

    public Student studentShow(Connection con, String studentId) throws Exception {
        String sql = "select * from t_student t1 where t1.studentId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, studentId);
        ResultSet rs = pstmt.executeQuery();
        Student student = new Student();
        if (rs.next()) {
            student.setStudentId(rs.getInt("studentId"));
            int dormBuildId = rs.getInt("dormBuildId");
            student.setDormBuildId(dormBuildId);
            student.setDormBuildName(DormBuildDao.dormBuildName(con, dormBuildId));
            student.setDormName(rs.getString("dormName"));
            student.setName(rs.getString("name"));
            student.setSex(rs.getString("sex"));
            student.setStuNumber(rs.getString("stuNum"));
            student.setTel(rs.getString("tel"));
            student.setPassword(rs.getString("password"));
        }
        return student;
    }

    public int studentAdd(Connection con, Student student) throws Exception {
        String sql = "insert into t_student values(null,?,?,?,?,?,?,?)";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, student.getStuNumber());
        pstmt.setString(2, student.getPassword());
        pstmt.setString(3, student.getName());
        pstmt.setInt(4, student.getDormBuildId());
        pstmt.setString(5, student.getDormName());
        pstmt.setString(6, student.getSex());
        pstmt.setString(7, student.getTel());
        return pstmt.executeUpdate();
    }

    public int studentDelete(Connection con, String studentId) throws Exception {
        String sql = "delete from t_student where studentId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, studentId);
        return pstmt.executeUpdate();
    }

    public int studentUpdate(Connection con, Student student) throws Exception {
        String sql = "update t_student set stuNum=?,password=?,name=?,dormBuildId=?,dormName=?,sex=?,tel=? where studentId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, student.getStuNumber());
        pstmt.setString(2, student.getPassword());
        pstmt.setString(3, student.getName());
        pstmt.setInt(4, student.getDormBuildId());
        pstmt.setString(5, student.getDormName());
        pstmt.setString(6, student.getSex());
        pstmt.setString(7, student.getTel());
        pstmt.setInt(8, student.getStudentId());
        return pstmt.executeUpdate();
    }


}

UserDao

package com.lero.dao;

import com.lero.model.Admin;
import com.lero.model.DormManager;
import com.lero.model.Student;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

public class UserDao {

    public Admin Login(Connection con, Admin admin) throws Exception {
        Admin resultAdmin = null;
        String sql = "select * from t_admin where userName=? and password=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, admin.getUserName());
        pstmt.setString(2, admin.getPassword());
        ResultSet rs = pstmt.executeQuery();
        if (rs.next()) {
            resultAdmin = new Admin();
            resultAdmin.setAdminId(rs.getInt("adminId"));
            resultAdmin.setUserName(rs.getString("userName"));
            resultAdmin.setPassword(rs.getString("password"));
            resultAdmin.setName(rs.getString("name"));
            resultAdmin.setSex(rs.getString("sex"));
            resultAdmin.setTel(rs.getString("tel"));
        }
        return resultAdmin;
    }

    public DormManager Login(Connection con, DormManager dormManager) throws Exception {
        DormManager resultDormManager = null;
        String sql = "select * from t_dormmanager where userName=? and password=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, dormManager.getUserName());
        pstmt.setString(2, dormManager.getPassword());
        ResultSet rs = pstmt.executeQuery();
        if (rs.next()) {
            resultDormManager = new DormManager();
            resultDormManager.setDormManagerId(rs.getInt("dormManId"));
            resultDormManager.setUserName(rs.getString("userName"));
            resultDormManager.setPassword(rs.getString("password"));
            resultDormManager.setDormBuildId(rs.getInt("dormBuildId"));
            resultDormManager.setName(rs.getString("name"));
            resultDormManager.setSex(rs.getString("sex"));
            resultDormManager.setTel(rs.getString("tel"));
        }
        return resultDormManager;
    }

    public Student Login(Connection con, Student student) throws Exception {
        Student resultStudent = null;
        String sql = "select * from t_student where stuNum=? and password=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, student.getStuNumber());
        pstmt.setString(2, student.getPassword());
        ResultSet rs = pstmt.executeQuery();
        if (rs.next()) {
            resultStudent = new Student();
            resultStudent.setStudentId(rs.getInt("studentId"));
            resultStudent.setStuNumber(rs.getString("stuNum"));
            resultStudent.setPassword(rs.getString("password"));
            int dormBuildId = rs.getInt("dormBuildId");
            resultStudent.setDormBuildId(dormBuildId);
            resultStudent.setDormBuildName(DormBuildDao.dormBuildName(con, dormBuildId));
            resultStudent.setDormName(rs.getString("dormName"));
            resultStudent.setName(rs.getString("name"));
            resultStudent.setSex(rs.getString("sex"));
            resultStudent.setTel(rs.getString("tel"));
        }
        return resultStudent;
    }

    public int adminUpdate(Connection con, int adminId, String password) throws Exception {
        String sql = "update t_admin set password=? where adminId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, password);
        pstmt.setInt(2, adminId);
        return pstmt.executeUpdate();
    }

    public int managerUpdate(Connection con, int managerId, String password) throws Exception {
        String sql = "update t_dormmanager set password=? where dormManId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, password);
        pstmt.setInt(2, managerId);
        return pstmt.executeUpdate();
    }

    public int studentUpdate(Connection con, int studentId, String password) throws Exception {
        String sql = "update t_student set password=? where studentId=?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setString(1, password);
        pstmt.setInt(2, studentId);
        return pstmt.executeUpdate();
    }

}

PropertiesUtil

package com.lero.util;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

public class PropertiesUtil {

    public static String getValue(String key) {
        Properties prop = new Properties();
        InputStream in = new PropertiesUtil().getClass().getResourceAsStream("/dorm.properties");
        try {
            prop.load(in);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return (String) prop.get(key);
    }
}

login.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
         pageEncoding="utf-8" %>
<%@ page import="com.lero.model.Admin" %>
<%@ page import="com.lero.model.DormManager" %>
<%@ page import="com.lero.model.Student" %>
<%
    if (request.getAttribute("user") == null) {
        String userName = null;
        String password = null;
        String userType = null;
        String remember = null;

        Cookie[] cookies = request.getCookies();
        for (int i = 0; cookies != null && i < cookies.length; i++) {
            if (cookies[i].getName().equals("dormuser")) {
                userName = cookies[i].getValue().split("-")[0];
                password = cookies[i].getValue().split("-")[1];
                userType = cookies[i].getValue().split("-")[2];
                remember = cookies[i].getValue().split("-")[3];
            }
        }

        if (userName == null) {
            userName = "";
        }

        if (password == null) {
            password = "";
        }

        if (userType == null) {
            userType = "";
        } else if ("admin".equals(userType)) {
            pageContext.setAttribute("user", new Admin(userName, password));
            pageContext.setAttribute("userType", 1);
        } else if ("dormManager".equals(userType)) {
            pageContext.setAttribute("user", new DormManager(userName, password));
            pageContext.setAttribute("userType", 2);
        } else if ("student".equals(userType)) {
            pageContext.setAttribute("user", new Student(userName, password));
            pageContext.setAttribute("userType", 3);
        }

        if ("yes".equals(remember)) {
            pageContext.setAttribute("remember", 1);
        }

    }
%>


    
    
    宿舍管理系统登录
    
    
    
    
    

    



mainAdmin.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
         pageEncoding="utf-8" %>


    
    
    宿舍管理系统
    
    
    
    
    
    
    
    
    
    
    
    

    
    



宿舍管理系统
当前用户: ${currentUser.userName }

mainManager.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
         pageEncoding="utf-8" %>


    
    
    宿舍管理系统
    
    
    
    
    
    
    
    
    
    
    
    

    
    



宿舍管理系统
当前用户: ${currentUser.userName }

mainStudent.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
         pageEncoding="utf-8" %>


    
    
    宿舍管理系统
    
    
    
    
    
    
    
    
    
    
    
    

    
    



宿舍管理系统
当前用户: ${currentUser.userName }

四、其他

1.其他系统实现

1.JavaWeb系统系列实现

Java+JSP实现学生图书管理系统

Java+JSP实现学生信息管理系统

Java+JSP实现用户信息管理系统

Java+Servlet+JSP实现航空订票系统

Java+Servlet+JSP实现新闻发布系统

Java+Servlet+JSP实现学生信息管理系统

Java+Servlet+JSP实现学生选课管理系统

Java+Servlet+JSP实现学生成绩管理系统-1

Java+Servlet+JSP实现学生成绩管理系统-2

Java+Servlet+JSP实现宠物诊所管理系统

Java+SSM+JSP实现网上考试系统

Java+SSH+JSP实现在线考试系统

Java+Springboot+Mybatis+Bootstrap+Maven实现网上商城系统

2.JavaSwing系统系列实现

Java+Swing实现斗地主游戏

Java+Swing实现图书管理系统

Java+Swing实现医院管理系统

Java+Swing实现考试管理系统

Java+Swing实现仓库管理系统-1

Java+Swing实现仓库管理系统-2

Java+Swing实现自助取款机系统

Java+Swing实现通讯录管理系统

Java+Swing实现停车场管理系统

Java+Swing实现学生信息管理系统

Java+Swing实现学生宿舍管理系统

Java+Swing实现学生选课管理系统

Java+Swing实现学生成绩管理系统

Java+Swing实现学校教材管理系统

Java+Swing实现学校教务管理系统

Java+Swing实现企业人事管理系统

Java+Swing实现电子相册管理系统

Java+Swing实现超市管理系统-TXT存储数据

Java+Swing实现自助取款机系统-TXT存储数据

Java+Swing实现宠物商店管理系统-TXT存储数据

2.获取源码

点击以下链接获取源码,数据库文件在sql文件下面。

Java+Servlet+JSP+Bootstrap+Mysql学生宿舍管理系统源码

3.运行项目

请点击以下链接,部署你的项目。

IDEA如何导入JavaWeb项目超详细视频教程

4.备注

如有侵权请联系我删除。

5.支持博主

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