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.个人信息

查询登录密码，查看个人信息，修改个人信息。

3.成绩管理

成绩信息查看

2.教师

1.登录系统

2.个人信息

查询登录密码，查看个人信息，修改个人信息。

3.课程管理

课程信息查看，添加课程信息。

4.成绩管理

成绩信息查看，添加学生成绩。

5.学生管理

查询学生信息，修改学生信息，删除学生信息。

3.管理员

1.登录系统

2.个人信息

3.课程管理

课程信息查看，修改课程信息，删除课程信息，添加课程信息。

4.成绩管理

成绩信息查看，修改学生成绩，删除学生成绩，添加学生成绩，学生总成绩。

5.教师管理

查询教师信息，修改教师信息，删除教师信息，添加教师信息。

6.学生管理

查询学生信息，修改学生信息，删除学生信息，添加学生信息。

7.查询所有账号

查询所有信息，修改信息。

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_score
 Target Server Type    : MySQL
 Target Server Version : 80013
 File Encoding         : 65001
 Date: 03/07/2021 16:46:10
*/
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for course
-- ----------------------------
DROP TABLE IF EXISTS `course`;
CREATE TABLE `course`  (
  `course_id` int(11) NOT NULL AUTO_INCREMENT COMMENT '课程编号',
  `course_name` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '课程名',
  `course_credit` int(11) NOT NULL COMMENT '学分',
  `course_hours` int(11) NOT NULL COMMENT '学时',
  `course_teacher` varchar(30) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '任课教师',
  `coursedate` date NOT NULL COMMENT '开课时间',
  PRIMARY KEY (`course_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 7 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of course
-- ----------------------------
INSERT INTO `course` VALUES (1, 'C++程序设计教程', 5, 60, '汪维清', '2017-03-02');
INSERT INTO `course` VALUES (2, 'java入门基础', 3, 60, '肖兴江', '2017-02-09');
INSERT INTO `course` VALUES (3, '计算机组成原理', 3, 60, '胡继宽', '2017-02-09');
INSERT INTO `course` VALUES (4, '信息检索', 2, 60, '郑蔚', '2017-02-09');
INSERT INTO `course` VALUES (5, '操作系统原理', 4, 60, '丁华峰', '2018-03-15');
INSERT INTO `course` VALUES (6, '管理信息系统', 4, 60, '杜治国', '2019-02-11');
-- ----------------------------
-- Table structure for role
-- ----------------------------
DROP TABLE IF EXISTS `role`;
CREATE TABLE `role`  (
  `role_id` int(11) NOT NULL COMMENT '角色编号',
  `role_name` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '角色名称',
  `role_info` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '角色信息',
  PRIMARY KEY (`role_id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of role
-- ----------------------------
INSERT INTO `role` VALUES (0, '学生', '学生查看成绩');
INSERT INTO `role` VALUES (1, '教师', '教师操作');
INSERT INTO `role` VALUES (2, '管理员', '管理员操作');
-- ----------------------------
-- Table structure for score
-- ----------------------------
DROP TABLE IF EXISTS `score`;
CREATE TABLE `score`  (
  `score_id` int(11) NOT NULL AUTO_INCREMENT COMMENT '成绩编号',
  `stu_num` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '学号',
  `stu_name` varchar(30) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '姓名',
  `stu_class` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '班级',
  `course_name` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '科目',
  `score_grade` double(11, 2) NOT NULL COMMENT '成绩',
  `major` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '专业',
  PRIMARY KEY (`score_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 112 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of score
-- ----------------------------
INSERT INTO `score` VALUES (1, '170340', '张三', '计科1701', 'java入门基础', 96.50, '计算机');
INSERT INTO `score` VALUES (2, '170340', '张三', '计科1701', 'C++程序设计教程', 85.00, '计算机');
INSERT INTO `score` VALUES (3, '160341', '王五', '信管1601', 'java入门基础', 62.60, '信息管理与信息系统');
INSERT INTO `score` VALUES (4, '160341', '王五', '信管1601', 'C++程序设计教程', 85.00, '信息管理与信息系统');
INSERT INTO `score` VALUES (5, '170340', '张三', '计科1701', '计算机组成原理', 69.00, '计算机');
INSERT INTO `score` VALUES (6, '170340', '张三', '计科1701', '信息检索', 95.00, '计算机');
INSERT INTO `score` VALUES (7, '170340', '张三', '计科1701', '操作系统原理', 89.00, '计算机');
INSERT INTO `score` VALUES (8, '160341', '王五', '计科1701', 'C++程序设计教程', 95.00, '计算机');
INSERT INTO `score` VALUES (9, '160341', '王五', '信管1601', 'java入门基础', 92.00, '信息管理与信息系统');
INSERT INTO `score` VALUES (10, '160341', '王五', '信管1601', '计算机组成原理', 83.00, '信息管理与信息系统');
INSERT INTO `score` VALUES (11, '170339', '李四', '计科1701', 'java入门基础', 78.20, '计算机');
INSERT INTO `score` VALUES (12, '170339', '李四', '计科1701', '信息检索', 98.00, '计算机');
INSERT INTO `score` VALUES (13, '170339', '李四', '计科1701', '计算机组成原理', 76.00, '计算机');
INSERT INTO `score` VALUES (14, '170339', '李四', '计科1701', '操作系统原理', 69.80, '计算机');
INSERT INTO `score` VALUES (15, '170339', '李四', '计科1701', 'C++程序设计教程', 89.00, '计算机');
INSERT INTO `score` VALUES (16, '170343', '陈留', '计科1701', 'java入门基础', 80.50, '计算机');
-- ----------------------------
-- Table structure for student
-- ----------------------------
DROP TABLE IF EXISTS `student`;
CREATE TABLE `student`  (
  `stu_id` int(11) NOT NULL AUTO_INCREMENT COMMENT '编号',
  `stu_num` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '账号',
  `stu_name` varchar(30) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '姓名',
  `stu_sex` varchar(10) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '性别',
  `stu_age` int(11) NOT NULL COMMENT '年龄',
  `stu_class` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '班级',
  `major` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '专业',
  `department` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '院系',
  PRIMARY KEY (`stu_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 35 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of student
-- ----------------------------
INSERT INTO `student` VALUES (1, '160341', '王五', '女', 21, '信管1601', '信息管理与信息系统', '商贸学院');
INSERT INTO `student` VALUES (2, '170340', '张三', '男', 20, '计科1701', '计算机', '商贸学院');
INSERT INTO `student` VALUES (3, '170339', '李四', '男', 20, '计科1701', '计算机', '商贸学院');
INSERT INTO `student` VALUES (4, '170343', '陈留', '男', 40, '计科1701', '计算机', '商贸学院');
INSERT INTO `student` VALUES (5, '160342', '盛祎琛', '女', 19, '信管1602', '信息管理与信息系统', '商贸学院');
INSERT INTO `student` VALUES (6, '160343', '闫玉平', '女', 20, '信管1601', '信息管理与信息系统', '商贸学院');
INSERT INTO `student` VALUES (7, '160344', '陈淑婷', '女', 20, '信管1601', '信息管理与信息系统', '商贸学院');
INSERT INTO `student` VALUES (8, '160345', '周梦琪', '女', 20, '信管1601', '信息管理与信息系统', '商贸学院');
INSERT INTO `student` VALUES (9, '160346', '曾智', '女', 20, '信管1601', '信息管理与信息系统', '商贸学院');
INSERT INTO `student` VALUES (11, '160348', '多罗罗', '男', 25, '信管1601', '信息管理与信息系统', '商贸学院');
-- ----------------------------
-- Table structure for teacher
-- ----------------------------
DROP TABLE IF EXISTS `teacher`;
CREATE TABLE `teacher`  (
  `tea_id` int(11) NOT NULL AUTO_INCREMENT COMMENT '编号',
  `tea_num` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '工号',
  `tea_name` varchar(30) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '姓名',
  `tea_sex` varchar(10) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '性别',
  `tea_age` int(11) NOT NULL COMMENT '年龄',
  `tea_course` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '所任课程',
  `major` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '专业',
  `department` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '院系',
  PRIMARY KEY (`tea_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 6 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of teacher
-- ----------------------------
INSERT INTO `teacher` VALUES (1, '1123', '肖兴江', '男', 30, 'java入门基础', '计算机', '商贸学院');
INSERT INTO `teacher` VALUES (2, '1124', '汪维清', '男', 25, 'C++程序设计教程', '计算机', '商贸学院');
INSERT INTO `teacher` VALUES (3, '1125', '胡继宽', '男', 32, '计算机组成原理', '信息管理与信息系统', '商贸学院');
INSERT INTO `teacher` VALUES (4, '1126', '郑蔚', '女', 34, '信息检索', '信息管理与信息系统', '商贸学院');
INSERT INTO `teacher` VALUES (5, '1127', '丁华峰', '男', 40, '操作系统原理', '计算机', '商贸学院');
INSERT INTO `teacher` VALUES (6, '1128', '杜治国', '男', 35, '管理信息系统', '信息管理与信息系统', '商贸学院');
-- ----------------------------
-- Table structure for user
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user`  (
  `user_id` int(11) NOT NULL AUTO_INCREMENT COMMENT '用户编号',
  `user_num` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '用户账号',
  `user_name` varchar(30) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '用户名',
  `password` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '密码',
  `phone` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '用户电话',
  `role_id` int(11) NOT NULL COMMENT '角色编号（外键）',
  PRIMARY KEY (`user_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 43 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES (1, '160341', '王五', '123456', '14829726746', 0);
INSERT INTO `user` VALUES (2, '170340', '张三', '123456', '15869483651', 0);
INSERT INTO `user` VALUES (3, '170339', '李四', '123456', '13589462584', 0);
INSERT INTO `user` VALUES (6, '1123', '肖兴江', '123456', '17418953551', 1);
INSERT INTO `user` VALUES (7, '1124', '汪维清', '123456', '15897683584', 1);
INSERT INTO `user` VALUES (9, '1125', '胡继宽', '123456', '12378945862', 1);
INSERT INTO `user` VALUES (10, '1126', '郑蔚', '123456', '13589462584', 1);
INSERT INTO `user` VALUES (11, '1001', '管理员', 'admin', '18179586325', 2);
INSERT INTO `user` VALUES (12, '1127', '丁华峰', '123456', '16123598785', 1);
INSERT INTO `user` VALUES (13, '1128', '杜治国', '123456', '13158794456', 1);
INSERT INTO `user` VALUES (14, '160344', '陈淑婷', '123456', '14829726746', 0);
INSERT INTO `user` VALUES (15, '160345', '周梦琪', '123456', '14829726746', 0);
-- ----------------------------
-- Triggers structure for table student
-- ----------------------------
DROP TRIGGER IF EXISTS `stuLogin`;
delimiter ;;
CREATE TRIGGER `stuLogin` AFTER DELETE ON `student` FOR EACH ROW begin 
delete from user where user_num=old.stu_num;
end
;;
delimiter ;
-- ----------------------------
-- Triggers structure for table teacher
-- ----------------------------
DROP TRIGGER IF EXISTS `teaLogin`;
delimiter ;;
CREATE TRIGGER `teaLogin` AFTER DELETE ON `teacher` FOR EACH ROW begin
delete from user where user_num=old.tea_num;
end
;;
delimiter ;
SET FOREIGN_KEY_CHECKS = 1;