Online examination system technical architecture
Main technologies
Spring, SpringMVC, Mybatis
JSP, JSTL, jQuery, HTML, CSS, JS
Mysql
bootstrap
development tools and environment
Eclipse
Maven
Tomcat 7
JDK 1.8
Mysql 5.6
Win10 operating system
Traditional architecture
Traditional examination system adopts this architecture
Distributed architecture
This system uses a distributed architecture
3. System function introduction
Picture
4. The system database table relationships
/ for convenience query, so does not satisfy the requirements paradigm, but very efficient query /
/ because of the special multi-table, so no structural relationship between the tables described in detail /
- Administrator
CREATE TABLE `admin` (
`id` varchar(20) NOT NULL COMMENT '管理员账号id',
`NAME` varchar(20) NOT NULL COMMENT '姓名',
`sex` varchar(2) NOT NULL COMMENT '性别',
`age` int(11) DEFAULT NULL COMMENT '年龄',
`idcard` varchar(20) NOT NULL COMMENT '身份证号',
`phone` varchar(20) NOT NULL COMMENT '手机号',
`QQ` varchar(20) DEFAULT NULL COMMENT 'QQ',
`emai` varchar(20) DEFAULT NULL COMMENT '邮箱',
`PASSWORD` varchar(20) DEFAULT NULL COMMENT '密码',
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
-- 老师
CREATE TABLE `teacher` (
`id` varchar(20) NOT NULL,
`NAME` varchar(20) NOT NULL,
`sex` varchar(2) NOT NULL,
`age` int(11) DEFAULT NULL,
`idcard` varchar(20) NOT NULL,
`phone` varchar(20) NOT NULL,
`QQ` varchar(20) DEFAULT NULL,
`email` varchar(20) DEFAULT NULL,
`PASSWORD` varchar(20) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
-- 学生
CREATE TABLE `student` (
`id` varchar(20) NOT NULL,
`classesId` int(11) DEFAULT NULL,
`name` varchar(20) NOT NULL,
`sex` varchar(2) NOT NULL,
`age` int(11) DEFAULT NULL,
`idcard` varchar(20) NOT NULL,
`phone` varchar(20) NOT NULL,
`QQ` varchar(20) DEFAULT NULL,
`email` varchar(20) DEFAULT NULL,
`password` varchar(20) DEFAULT NULL,
`classesName` varchar(20) DEFAULT NULL,
PRIMARY KEY (`id`),
KEY `FK_studentClasses` (`classesId`),
CONSTRAINT `FK_studentClasses` FOREIGN KEY (`classesId`) REFERENCES `classes` (`classesId`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
-- 科目
CREATE TABLE `subject` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`NAME` varchar(20) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=29 DEFAULT CHARSET=utf8
-- 章节
CREATE TABLE `chapter` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`sub_id` int(11) NOT NULL,
`NAME` varchar(255) DEFAULT NULL,
`title` varchar(255) DEFAULT NULL,
PRIMARY KEY (`id`),
KEY `FK_subjectChaper` (`sub_id`),
CONSTRAINT `FK_subjectChaper` FOREIGN KEY (`sub_id`) REFERENCES `subject` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=189 DEFAULT CHARSET=utf8
--班级
CREATE TABLE `classes` (
`classesId` int(11) NOT NULL AUTO_INCREMENT,
`classesName` varchar(20) NOT NULL,
`grade` varchar(20) NOT NULL,
PRIMARY KEY (`classesId`)
) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=utf8
--科目班级映射表
CREATE TABLE `subjectclasses` (
`classesId` int(11) NOT NULL,
`id` int(11) NOT NULL,
PRIMARY KEY (`classesId`,`id`),
KEY `FK_subjectClasses2` (`id`),
CONSTRAINT `FK_subjectClasses` FOREIGN KEY (`classesId`) REFERENCES `classes` (`classesId`),
CONSTRAINT `FK_subjectClasses2` FOREIGN KEY (`id`) REFERENCES `subject` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
--老师班级表
CREATE TABLE `teacher_classes` (
`id` varchar(20) NOT NULL,
`classesId` int(11) NOT NULL,
`subId` int(11) NOT NULL,
PRIMARY KEY (`id`,`classesId`,`subId`),
KEY `FK_teacher_classes2` (`classesId`),
KEY `FK_teacher_classes3` (`subId`),
CONSTRAINT `FK_teacher_classes` FOREIGN KEY (`id`) REFERENCES `teacher` (`id`),
CONSTRAINT `FK_teacher_classes2` FOREIGN KEY (`classesId`) REFERENCES `classes` (`classesId`),
CONSTRAINT `FK_teacher_classes3` FOREIGN KEY (`subId`) REFERENCES `subject` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
-- 老师科目表
CREATE TABLE `teacher_subject` (
`id` varchar(20) NOT NULL,
`sub_id` int(11) NOT NULL,
PRIMARY KEY (`id`,`sub_id`),
KEY `FK_teacher_subject2` (`sub_id`),
CONSTRAINT `FK_teacher_subject` FOREIGN KEY (`id`) REFERENCES `teacher` (`id`),
CONSTRAINT `FK_teacher_subject2` FOREIGN KEY (`sub_id`) REFERENCES `subject` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
--发布考试表
CREATE TABLE `publishexam` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`admin_id` varchar(20) NOT NULL,
`publishTime` datetime NOT NULL,
`subject_id` int(11) NOT NULL,
`examTime` datetime NOT NULL,
`description` text,
`exam` text,
`examType` varchar(20) DEFAULT NULL,
`STATUS` int(11) DEFAULT NULL,
`admin_name` varchar(20) NOT NULL,
`subject_name` varchar(20) NOT NULL,
`examlength` int(11) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=14 DEFAULT CHARSET=utf8
-- 学生考试记录表
CREATE TABLE `examhis` (
`studentId` varchar(20) NOT NULL,
`studentName` varchar(20) DEFAULT NULL,
`subjectId` int(11) NOT NULL,
`subjectName` varchar(20) DEFAULT NULL,
`classesId` int(11) DEFAULT NULL,
`classesName` varchar(20) DEFAULT NULL,
`examTime` datetime NOT NULL,
`score` int(11) DEFAULT NULL,
`examTest` text,
`status` int(11) NOT NULL DEFAULT '0',
`publishExamId` int(11) NOT NULL,
PRIMARY KEY (`studentId`,`subjectId`,`examTime`),
CONSTRAINT `FK_stu_his` FOREIGN KEY (`studentId`) REFERENCES `student` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
-- 试题模块表 （选择题，填空题等）
CREATE TABLE `textmodel` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`textType` varchar(20) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8
-- 试题表
CREATE TABLE `text` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`Tex_id` int(11) NOT NULL,
`title` varchar(200) NOT NULL,
`answer` varchar(200) NOT NULL,
`diffculty` int(11) NOT NULL,
`modelName` varchar(200) DEFAULT NULL,
`subjectName` varchar(200) DEFAULT NULL,
`subjectId` int(11) NOT NULL,
`chapterId` int(11) DEFAULT NULL,
`chapterName` varchar(200) NOT NULL,
`type1` varchar(200) DEFAULT NULL,
`type2` varchar(200) DEFAULT NULL,
`type3` varchar(200) DEFAULT NULL,
`type4` varchar(200) DEFAULT NULL,
PRIMARY KEY (`id`),
KEY `FK_text_type` (`Tex_id`),
CONSTRAINT `FK_text_type` FOREIGN KEY (`Tex_id`) REFERENCES `textmodel` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=306 DEFAULT CHARSET=utf8
5. MAVEN system dependency and engineering structure
