谷粒学院-数据库设计、搭建项目环境、Mybatis-Plus代码生成器

数据库设计规约

以下规约只针对本模块，更全面的文档参考《阿里巴巴Java开发手册》：五、MySQL数据库1、库名与应用名称尽量一致2、表名、字段名必须使用小写字母或数字，禁止出现数字开头，3、表名不使用复数名词4、表的命名最好是加上“业务名称_表的作用”。如，edu_teacher5、表必备三字段：id, gmt_create, gmt_modified说明：其中 id 必为主键，类型为 bigint unsigned、单表时自增、步长为 1。（如果使用分库分表集群部署，则id类型为verchar，非自增，业务中使用分布式id生成器）gmt_create, gmt_modified 的类型均为 datetime 类型，前者现在时表示主动创建，后者过去分词表示被 动更新。6、单表行数超过 500 万行或者单表容量超过 2GB，才推荐进行分库分表。 说明：如果预计三年后的数据量根本达不到这个级别，请不要在创建表时就分库分表。 7、表达是与否概念的字段，必须使用 is_xxx 的方式命名，数据类型是 unsigned tinyint （1 表示是，0 表示否）。 说明：任何字段如果为非负数，必须是 unsigned。 注意：POJO 类中的任何布尔类型的变量，都不要加 is 前缀。数据库表示是与否的值，使用 tinyint 类型，坚持 is_xxx 的 命名方式是为了明确其取值含义与取值范围。 正例：表达逻辑删除的字段名 is_deleted，1 表示删除，0 表示未删除。 8、小数类型为 decimal，禁止使用 float 和 double。 说明：float 和 double 在存储的时候，存在精度损失的问题，很可能在值的比较时，得到不 正确的结果。如果存储的数据范围超过 decimal 的范围，建议将数据拆成整数和小数分开存储。9、如果存储的字符串长度几乎相等，使用 char 定长字符串类型。 10、varchar 是可变长字符串，不预先分配存储空间，长度不要超过 5000，如果存储长度大于此值，定义字段类型为 text，独立出来一张表，用主键来对应，避免影响其它字段索 引效率。11、唯一索引名为 uk_字段名；普通索引名则为 idx_字段名。说明：uk_ 即 unique key；idx_ 即 index 的简称12、不得使用外键与级联，一切外键概念必须在应用层解决。外键与级联更新适用于单机低并发，不适合分布式、高并发集群；级联更新是强阻塞，存在数据库更新风暴的风险；外键影响数据库的插入速度。

数据表：

# Host: localhost  (Version 5.7.19)
# Date: 2019-11-18 15:49:32
# Generator: MySQL-Front 6.1  (Build 1.26)#
# Structure for table "edu_chapter"
#CREATE TABLE `edu_chapter` (`id` char(19) NOT NULL COMMENT '章节ID',`course_id` char(19) NOT NULL COMMENT '课程ID',`title` varchar(50) NOT NULL COMMENT '章节名称',`sort` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '显示排序',`gmt_create` datetime NOT NULL COMMENT '创建时间',`gmt_modified` datetime NOT NULL COMMENT '更新时间',PRIMARY KEY (`id`),KEY `idx_course_id` (`course_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 ROW_FORMAT=COMPACT COMMENT='课程';#
# Data for table "edu_chapter"
#INSERT INTO `edu_chapter` VALUES ('1','14','第一章：HTML',0,'2019-01-01 12:27:40','2019-01-01 12:55:30'),('1181729226915577857','18','第七章：I/O流',70,'2019-10-09 08:32:58','2019-10-09 08:33:20'),('1192252428399751169','1192252213659774977','第一章节',0,'2019-11-07 09:28:25','2019-11-07 09:28:25'),('15','18','第一章：Java入门',0,'2019-01-01 12:27:40','2019-10-09 09:13:19'),('3','14','第二章：CSS',0,'2019-01-01 12:55:35','2019-01-01 12:27:40'),('32','18','第二章：控制台输入和输出',0,'2019-01-01 12:27:40','2019-01-01 12:27:40'),('44','18','第三章：控制流',0,'2019-01-01 12:27:40','2019-01-01 12:27:40'),('48','18','第四章：类的定义',0,'2019-01-01 12:27:40','2019-01-01 12:27:40'),('63','18','第五章：数组',0,'2019-01-01 12:27:40','2019-01-01 12:27:40'),('64','18','第六章：继承',61,'2019-01-01 12:27:40','2019-10-09 08:32:47');#
# Structure for table "edu_comment"
#CREATE TABLE `edu_comment` (`id` char(19) NOT NULL COMMENT '讲师ID',`course_id` varchar(19) NOT NULL DEFAULT '' COMMENT '课程id',`teacher_id` char(19) NOT NULL DEFAULT '' COMMENT '讲师id',`member_id` varchar(19) NOT NULL DEFAULT '' COMMENT '会员id',`nickname` varchar(50) DEFAULT NULL COMMENT '会员昵称',`avatar` varchar(255) DEFAULT NULL COMMENT '会员头像',`content` varchar(500) DEFAULT NULL COMMENT '评论内容',`is_deleted` tinyint(1) unsigned NOT NULL DEFAULT '0' COMMENT '逻辑删除 1（true）已删除， 0（false）未删除',`gmt_create` datetime NOT NULL COMMENT '创建时间',`gmt_modified` datetime NOT NULL COMMENT '更新时间',PRIMARY KEY (`id`),KEY `idx_course_id` (`course_id`),KEY `idx_teacher_id` (`teacher_id`),KEY `idx_member_id` (`member_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='评论';#
# Data for table "edu_comment"
#INSERT INTO `edu_comment` VALUES ('1194499162790211585','1192252213659774977','1189389726308478977','1','小三123','http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoj0hHXhgJNOTSOFsS4uZs8x1ConecaVOB8eIl115xmJZcT4oCicvia7wMEufibKtTLqiaJeanU2Lpg3w/132','课程很好',0,'2019-11-13 14:16:08','2019-11-13 14:16:08'),('1194898406466420738','1192252213659774977','1189389726308478977','1','小三123','http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoj0hHXhgJNOTSOFsS4uZs8x1ConecaVOB8eIl115xmJZcT4oCicvia7wMEufibKtTLqiaJeanU2Lpg3w/132','11',0,'2019-11-14 16:42:35','2019-11-14 16:42:35'),('1194898484388200450','1192252213659774977','1189389726308478977','1','小三123','http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoj0hHXhgJNOTSOFsS4uZs8x1ConecaVOB8eIl115xmJZcT4oCicvia7wMEufibKtTLqiaJeanU2Lpg3w/132','111',0,'2019-11-14 16:42:53','2019-11-14 16:42:53'),('1195251020861317122','1192252213659774977','1189389726308478977','1',NULL,NULL,'2233',0,'2019-11-15 16:03:45','2019-11-15 16:03:45'),('1195251382720700418','1192252213659774977','1189389726308478977','1',NULL,NULL,'4455',0,'2019-11-15 16:05:11','2019-11-15 16:05:11'),('1195252819177570306','1192252213659774977','1189389726308478977','1','小三1231','http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoj0hHXhgJNOTSOFsS4uZs8x1ConecaVOB8eIl115xmJZcT4oCicvia7wMEufibKtTLqiaJeanU2Lpg3w/132','55',0,'2019-11-15 16:10:53','2019-11-15 16:10:53'),('1195252899448160258','1192252213659774977','1189389726308478977','1','小三1231','http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoj0hHXhgJNOTSOFsS4uZs8x1ConecaVOB8eIl115xmJZcT4oCicvia7wMEufibKtTLqiaJeanU2Lpg3w/132','55',0,'2019-11-15 16:11:13','2019-11-15 16:11:13'),('1195252920587452417','1192252213659774977','1189389726308478977','1','小三1231','http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoj0hHXhgJNOTSOFsS4uZs8x1ConecaVOB8eIl115xmJZcT4oCicvia7wMEufibKtTLqiaJeanU2Lpg3w/132','223344',0,'2019-11-15 16:11:18','2019-11-15 16:11:18'),('1195262128095559681','14','1189389726308478977','1','小三1231','http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoj0hHXhgJNOTSOFsS4uZs8x1ConecaVOB8eIl115xmJZcT4oCicvia7wMEufibKtTLqiaJeanU2Lpg3w/132','11',0,'2019-11-15 16:47:53','2019-11-15 16:47:53'),('1196264505170767874','1192252213659774977','1189389726308478977','1','小三1231','http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoj0hHXhgJNOTSOFsS4uZs8x1ConecaVOB8eIl115xmJZcT4oCicvia7wMEufibKtTLqiaJeanU2Lpg3w/132','666666',0,'2019-11-18 11:10:58','2019-11-18 11:10:58');#
# Structure for table "edu_course"
#CREATE TABLE `edu_course` (`id` char(19) NOT NULL COMMENT '课程ID',`teacher_id` char(19) NOT NULL COMMENT '课程讲师ID',`subject_id` char(19) NOT NULL COMMENT '课程专业ID',`subject_parent_id` char(19) NOT NULL COMMENT '课程专业父级ID',`title` varchar(50) NOT NULL COMMENT '课程标题',`price` decimal(10,2) unsigned NOT NULL DEFAULT '0.00' COMMENT '课程销售价格，设置为0则可免费观看',`lesson_num` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '总课时',`cover` varchar(255) CHARACTER SET utf8 NOT NULL COMMENT '课程封面图片路径',`buy_count` bigint(10) unsigned NOT NULL DEFAULT '0' COMMENT '销售数量',`view_count` bigint(10) unsigned NOT NULL DEFAULT '0' COMMENT '浏览数量',`version` bigint(20) unsigned NOT NULL DEFAULT '1' COMMENT '乐观锁',`status` varchar(10) NOT NULL DEFAULT 'Draft' COMMENT '课程状态 Draft未发布  Normal已发布',`is_deleted` tinyint(3) DEFAULT NULL COMMENT '逻辑删除 1（true）已删除， 0（false）未删除',`gmt_create` datetime NOT NULL COMMENT '创建时间',`gmt_modified` datetime NOT NULL COMMENT '更新时间',PRIMARY KEY (`id`),KEY `idx_title` (`title`),KEY `idx_subject_id` (`subject_id`),KEY `idx_teacher_id` (`teacher_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 ROW_FORMAT=COMPACT COMMENT='课程';#
# Data for table "edu_course"
#INSERT INTO `edu_course` VALUES ('1192252213659774977','1189389726308478977','1178214681139539969','1178214681118568449','java基础课程：test',0.01,2,'https://guli-file-190513.oss-cn-beijing.aliyuncs.com/cover/default.gif',4,387,1,'Normal',0,'2019-11-07 09:27:33','2019-11-18 13:35:03'),('14','1189389726308478977','1101348944971091969','1101348944920760321','XHTML CSS2 JS整站制作教程课程学习',0.00,3,'http://guli-file.oss-cn-beijing.aliyuncs.com/cover/2019/03/13/d0086eb0-f2dc-45f7-bba1-744d95e5be0f.jpg',3,44,15,'Normal',0,'2018-04-02 18:33:34','2019-11-16 21:21:45'),('15','1189389726308478977','1101348944971091969','1101348944920760321','HTML5入门课程学习',0.00,23,'http://guli-file.oss-cn-beijing.aliyuncs.com/cover/2019/03/13/22997b8e-3606-4d2e-9b4f-09f48418b6e4.jpg',0,51,17,'Normal',0,'2018-04-02 18:34:32','2019-11-12 10:19:20'),('18','1189389726308478977','1178214681139539969','1178214681118568449','Java精品课程',0.01,20,'http://guli-file.oss-cn-beijing.aliyuncs.com/cover/2019/03/06/866e9aca-b530-4f71-a690-72d4a4bfd1e7.jpg',151,737,6,'Normal',0,'2018-04-02 21:28:46','2019-11-18 11:14:52');#
# Structure for table "edu_course_collect"
#CREATE TABLE `edu_course_collect` (`id` char(19) NOT NULL COMMENT '收藏ID',`course_id` char(19) NOT NULL COMMENT '课程讲师ID',`member_id` char(19) NOT NULL DEFAULT '' COMMENT '课程专业ID',`is_deleted` tinyint(3) NOT NULL DEFAULT '0' COMMENT '逻辑删除 1（true）已删除， 0（false）未删除',`gmt_create` datetime NOT NULL COMMENT '创建时间',`gmt_modified` datetime NOT NULL COMMENT '更新时间',PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 ROW_FORMAT=COMPACT COMMENT='课程收藏';#
# Data for table "edu_course_collect"
#INSERT INTO `edu_course_collect` VALUES ('1196269345666019330','1192252213659774977','1',1,'2019-11-18 11:30:12','2019-11-18 11:30:12');#
# Structure for table "edu_course_description"
#CREATE TABLE `edu_course_description` (`id` char(19) NOT NULL COMMENT '课程ID',`description` text COMMENT '课程简介',`gmt_create` datetime NOT NULL COMMENT '创建时间',`gmt_modified` datetime NOT NULL COMMENT '更新时间',PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='课程简介';#
# Data for table "edu_course_description"
#INSERT INTO `edu_course_description` VALUES ('1104870479077879809','<p>11</p>','2019-03-11 06:23:44','2019-03-11 06:23:44'),('1192252213659774977','<p>测试</p>','2019-11-07 09:27:33','2019-11-13 16:21:28'),('14','','2019-03-13 06:04:43','2019-03-13 06:05:33'),('15','','2019-03-13 06:03:33','2019-03-13 06:04:22'),('18','<p>本套Java视频完全针对零基础学员，课堂实录，自发布以来，好评如潮！Java视频中注重与学生互动，讲授幽默诙谐、细致入微，覆盖Java基础所有核心知识点，同类Java视频中也是代码量大、案例多、实战性强的。同时，本Java视频教程注重技术原理剖析，深入JDK源码，辅以代码实战贯穿始终，用实践驱动理论，并辅以必要的代码练习。</p>\n<p>------------------------------------</p>\n<p>视频特点：</p>\n<p>通过学习本Java视频教程，大家能够真正将Java基础知识学以致用、活学活用，构架Java编程思想，牢牢掌握\"源码级\"的Javase核心技术，并为后续JavaWeb等技术的学习奠定扎实基础。<br /><br />1.通俗易懂，细致入微：每个知识点高屋建瓴，深入浅出，简洁明了的说明问题<br />2.具实战性：全程真正代码实战，涵盖上百个企业应用案例及练习<br />3.深入：源码分析，更有 Java 反射、动态代理的实际应用等<br />4.登录尚硅谷官网，技术讲师免费在线答疑</p>','2019-03-06 18:06:36','2019-10-30 19:58:36');#
# Structure for table "edu_subject"
#CREATE TABLE `edu_subject` (`id` char(19) NOT NULL COMMENT '课程类别ID',`title` varchar(10) NOT NULL COMMENT '类别名称',`parent_id` char(19) NOT NULL DEFAULT '0' COMMENT '父ID',`sort` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '排序字段',`gmt_create` datetime NOT NULL COMMENT '创建时间',`gmt_modified` datetime NOT NULL COMMENT '更新时间',PRIMARY KEY (`id`),KEY `idx_parent_id` (`parent_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 ROW_FORMAT=COMPACT COMMENT='课程科目';#
# Data for table "edu_subject"
#INSERT INTO `edu_subject` VALUES ('1178214681118568449','后端开发','0',1,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681139539969','Java','1178214681118568449',1,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681181483010','前端开发','0',3,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681210843137','JavaScript','1178214681181483010',4,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681231814658','云计算','0',5,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681252786178','Docker','1178214681231814658',5,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681294729217','Linux','1178214681231814658',6,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681324089345','系统/运维','0',7,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681353449473','Linux','1178214681324089345',7,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681382809602','Windows','1178214681324089345',8,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681399586817','数据库','0',9,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681428946945','MySQL','1178214681399586817',9,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681454112770','MongoDB','1178214681399586817',10,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681483472898','大数据','0',11,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681504444418','Hadoop','1178214681483472898',11,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681529610242','Spark','1178214681483472898',12,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681554776066','人工智能','0',13,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681584136193','Python','1178214681554776066',13,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681613496321','编程语言','0',14,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178214681626079234','Java','1178214681613496321',14,'2019-09-29 15:47:25','2019-09-29 15:47:25'),('1178585108407984130','Python','1178214681118568449',2,'2019-09-30 16:19:22','2019-09-30 16:19:22'),('1178585108454121473','HTML/CSS','1178214681181483010',3,'2019-09-30 16:19:22','2019-09-30 16:19:22');#
# Structure for table "edu_teacher"
#CREATE TABLE `edu_teacher` (`id` char(19) NOT NULL COMMENT '讲师ID',`name` varchar(20) NOT NULL COMMENT '讲师姓名',`intro` varchar(500) NOT NULL DEFAULT '' COMMENT '讲师简介',`career` varchar(500) DEFAULT NULL COMMENT '讲师资历,一句话说明讲师',`level` int(10) unsigned NOT NULL COMMENT '头衔 1高级讲师 2首席讲师',`avatar` varchar(255) DEFAULT NULL COMMENT '讲师头像',`sort` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '排序',`is_deleted` tinyint(1) unsigned NOT NULL DEFAULT '0' COMMENT '逻辑删除 1（true）已删除， 0（false）未删除',`gmt_create` datetime NOT NULL COMMENT '创建时间',`gmt_modified` datetime NOT NULL COMMENT '更新时间',PRIMARY KEY (`id`),UNIQUE KEY `uk_name` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='讲师';#
# Data for table "edu_teacher"
#INSERT INTO `edu_teacher` VALUES ('1','张三','近年主持国家自然科学基金（6项）、江苏省重大科技成果转化项目（5项）、江苏省产学研前瞻性联合研究项目（3项）、省工业科技支撑、省高技术、省自然科学基金等省部级及其企业的主要科研项目40多个，多个项目在企业成功转化，产生了较好的经济、社会和环境效益。积极开展产学研科技合作，并与省内16家企业建立了江苏省研究生工作站，其中6家为江苏省优秀研究生工作站','高级',1,'https://guli-file-190513.oss-cn-beijing.aliyuncs.com/avatar/default.jpg',0,0,'2019-10-30 14:18:46','2019-11-12 13:36:36'),('1189389726308478977','晴天','高级讲师简介','高级讲师资历',2,'https://online-teach-file.oss-cn-beijing.aliyuncs.com/teacher/2019/10/30/de47ee9b-7fec-43c5-8173-13c5f7f689b2.png',1,0,'2019-10-30 11:53:03','2019-10-30 11:53:03'),('1189390295668469762','李刚','高级讲师简介','高级讲师',2,'https://online-teach-file.oss-cn-beijing.aliyuncs.com/teacher/2019/10/30/b8aa36a2-db50-4eca-a6e3-cc6e608355e0.png',2,0,'2019-10-30 11:55:19','2019-11-12 13:37:52'),('1189426437876985857','王二','高级讲师简介','高级讲师',1,'https://online-teach-file.oss-cn-beijing.aliyuncs.com/teacher/2019/11/08/e44a2e92-2421-4ea3-bb49-46f2ec96ef88.png',0,0,'2019-10-30 14:18:56','2019-11-12 13:37:35'),('1189426464967995393','王五','高级讲师简介','高级讲师',1,'https://online-teach-file.oss-cn-beijing.aliyuncs.com/teacher/2019/10/30/65423f14-49a9-4092-baf5-6d0ef9686a85.png',0,0,'2019-10-30 14:19:02','2019-11-12 13:37:18'),('1192249914833055746','李四','高级讲师简介','高级讲师',1,'https://online-teach-file.oss-cn-beijing.aliyuncs.com/teacher/2019/11/07/91871e25-fd83-4af6-845f-ea8d471d825d.png',0,0,'2019-11-07 09:18:25','2019-11-12 13:37:01'),('1192327476087115778','1222-12-12','1111','11',1,'https://online-teach-file.oss-cn-beijing.aliyuncs.com/teacher/2019/11/08/5805c6cd-c8ad-4a77-aafd-d2e083bfd8a4.png',0,1,'2019-11-07 14:26:37','2019-11-11 16:26:26'),('1195337453429129218','test','sdfsdf','sdfdf',1,'https://guli-file-190513.oss-cn-beijing.aliyuncs.com/avatar/default.jpg',0,1,'2019-11-15 21:47:12','2019-11-15 21:47:27');#
# Structure for table "edu_video"
#CREATE TABLE `edu_video` (`id` char(19) NOT NULL COMMENT '视频ID',`course_id` char(19) NOT NULL COMMENT '课程ID',`chapter_id` char(19) NOT NULL COMMENT '章节ID',`title` varchar(50) NOT NULL COMMENT '节点名称',`video_source_id` varchar(100) DEFAULT NULL COMMENT '云端视频资源',`video_original_name` varchar(100) DEFAULT NULL COMMENT '原始文件名称',`sort` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '排序字段',`play_count` bigint(20) unsigned NOT NULL DEFAULT '0' COMMENT '播放次数',`is_free` tinyint(1) unsigned NOT NULL DEFAULT '0' COMMENT '是否可以试听：0收费 1免费',`duration` float NOT NULL DEFAULT '0' COMMENT '视频时长（秒）',`status` varchar(20) NOT NULL DEFAULT 'Empty' COMMENT 'Empty未上传 Transcoding转码中  Normal正常',`size` bigint(20) unsigned NOT NULL DEFAULT '0' COMMENT '视频源文件大小（字节）',`version` bigint(20) unsigned NOT NULL DEFAULT '1' COMMENT '乐观锁',`gmt_create` datetime NOT NULL COMMENT '创建时间',`gmt_modified` datetime NOT NULL COMMENT '更新时间',PRIMARY KEY (`id`),KEY `idx_course_id` (`course_id`),KEY `idx_chapter_id` (`chapter_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 ROW_FORMAT=COMPACT COMMENT='课程视频';#
# Data for table "edu_video"
#INSERT INTO `edu_video` VALUES ('1182499307429339137','18','32','第一节','','',0,0,0,0,'',0,1,'2019-10-11 11:32:59','2019-10-11 11:57:38'),('1185312444399071234','14','1','12','','',0,0,0,0,'Empty',0,1,'2019-10-19 05:51:23','2019-10-19 05:51:33'),('1189434737808990210','18','44','测试','','',1,0,0,0,'Empty',0,1,'2019-10-30 14:51:55','2019-10-30 14:51:55'),('1189471423678939138','18','1181729226915577857','test','2b887dc9584d4dc68908780ec57cd3b9','视频',1,0,0,0,'Empty',0,1,'2019-10-30 17:17:41','2019-10-30 17:17:41'),('1189476403626409986','18','1181729226915577857','22','5155c73dc112475cbbddccf4723f7cef','视频.mp4',0,0,0,0,'Empty',0,1,'2019-10-30 17:37:29','2019-10-30 17:37:29'),('1192252824606289921','1192252213659774977','1192252428399751169','第一课时','756cf06db9cb4f30be85a9758b19c645','eae2b847ef8503b81f5d5593d769dde2.mp4',0,0,0,0,'Empty',0,1,'2019-11-07 09:29:59','2019-11-07 09:29:59'),('1192628092797730818','1192252213659774977','1192252428399751169','第二课时','2a02d726622f4c7089d44cb993c531e1','eae2b847ef8503b81f5d5593d769dde2.mp4',0,0,1,0,'Empty',0,1,'2019-11-08 10:21:10','2019-11-08 10:21:22'),('1192632495013380097','1192252213659774977','1192252428399751169','第三课时','4e560c892fdf4fa2b42e0671aa42fa9d','eae2b847ef8503b81f5d5593d769dde2.mp4',0,0,1,0,'Empty',0,1,'2019-11-08 10:38:40','2019-11-08 10:38:40'),('1194117638832111617','1192252213659774977','1192252428399751169','第四课时','4e560c892fdf4fa2b42e0671aa42fa9d','eae2b847ef8503b81f5d5593d769dde2.mp4',0,0,0,0,'Empty',0,1,'2019-11-12 13:00:05','2019-11-12 13:00:05'),('1196263770832023554','1192252213659774977','1192252428399751169','第五课时','27d21158b0834cb5a8d50710937de330','eae2b847ef8503b81f5d5593d769dde2.mp4',5,0,0,0,'Empty',0,1,'2019-11-18 11:08:03','2019-11-18 11:08:03'),('17','18','15','第一节：Java简介','196116a6fee742e1ba9f6c18f65bd8c1','1',1,1000,1,100,'Draft',0,1,'2019-01-01 13:08:57','2019-10-11 11:26:39'),('18','18','15','第二节：表达式和赋值语句','2d99b08ca0214909899910c9ba042d47','7 - How Do I Find Time for My ',2,999,1,100,'Draft',0,1,'2019-01-01 13:09:02','2019-03-08 03:30:27'),('19','18','15','第三节：String类','51120d59ddfd424cb5ab08b44fc8b23a','eae2b847ef8503b81f5d5593d769dde2.mp4',3,888,0,100,'Draft',0,1,'2019-01-01 13:09:05','2019-11-12 12:50:45'),('20','18','15','第四节：程序风格','2a38988892d84df598752226c50f3fa3','00-day10总结.avi',4,666,0,100,'Draft',0,1,'2019-01-01 13:09:05','2019-10-11 09:20:09');

模块说明

创建sprigboot工程guli-parent，使用 Spring Initializr快速初始化一个Spring Boot模块

<artifactId>节点后面添加pom类型

删除pom.xml中的

<dependencies>内容

<!-- 以下内容删除 --><properties><java.version>1.8</java.version>
</properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency>
</dependencies>

添加 <properties>确定依赖的版本

<properties><java.version>1.8</java.version><guli.version>0.0.1-SNAPSHOT</guli.version><mybatis-plus.version>3.0.5</mybatis-plus.version><velocity.version>2.0</velocity.version><swagger.version>2.7.0</swagger.version><aliyun.oss.version>2.8.3</aliyun.oss.version><jodatime.version>2.10.1</jodatime.version><poi.version>3.17</poi.version><commons-fileupload.version>1.3.1</commons-fileupload.version><commons-io.version>2.6</commons-io.version><httpclient.version>4.5.1</httpclient.version><jwt.version>0.7.0</jwt.version><aliyun-java-sdk-core.version>4.3.3</aliyun-java-sdk-core.version><aliyun-sdk-oss.version>3.1.0</aliyun-sdk-oss.version><aliyun-java-sdk-vod.version>2.15.2</aliyun-java-sdk-vod.version><aliyun-java-vod-upload.version>1.4.11</aliyun-java-vod-upload.version><aliyun-sdk-vod-upload.version>1.4.11</aliyun-sdk-vod-upload.version><fastjson.version>1.2.28</fastjson.version><gson.version>2.8.2</gson.version><json.version>20170516</json.version><commons-dbutils.version>1.7</commons-dbutils.version><canal.client.version>1.1.0</canal.client.version><docker.image.prefix>zx</docker.image.prefix><cloud-alibaba.version>0.2.2.RELEASE</cloud-alibaba.version>
</properties>

配置 <dependencyManagement> 锁定依赖的版本

<dependencyManagement><dependencies><!--Spring Cloud--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>Hoxton.RELEASE</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-alibaba-dependencies</artifactId><version>${cloud-alibaba.version}</version><type>pom</type><scope>import</scope></dependency><!--mybatis-plus 持久层--><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>${mybatis-plus.version}</version></dependency><!-- velocity 模板引擎, Mybatis Plus 代码生成器需要 --><dependency><groupId>org.apache.velocity</groupId><artifactId>velocity-engine-core</artifactId><version>${velocity.version}</version></dependency><!--swagger--><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId><version>${swagger.version}</version></dependency><!--swagger ui--><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger-ui</artifactId><version>${swagger.version}</version></dependency><!--aliyunOSS--><dependency><groupId>com.aliyun.oss</groupId><artifactId>aliyun-sdk-oss</artifactId><version>${aliyun.oss.version}</version></dependency><!--日期时间工具--><dependency><groupId>joda-time</groupId><artifactId>joda-time</artifactId><version>${jodatime.version}</version></dependency><!--xls--><dependency><groupId>org.apache.poi</groupId><artifactId>poi</artifactId><version>${poi.version}</version></dependency><!--xlsx--><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId><version>${poi.version}</version></dependency><!--文件上传--><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>${commons-fileupload.version}</version></dependency><!--commons-io--><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>${commons-io.version}</version></dependency><!--httpclient--><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId><version>${httpclient.version}</version></dependency><dependency><groupId>com.google.code.gson</groupId><artifactId>gson</artifactId><version>${gson.version}</version></dependency><!-- JWT --><dependency><groupId>io.jsonwebtoken</groupId><artifactId>jjwt</artifactId><version>${jwt.version}</version></dependency><!--aliyun--><dependency><groupId>com.aliyun</groupId><artifactId>aliyun-java-sdk-core</artifactId><version>${aliyun-java-sdk-core.version}</version></dependency><dependency><groupId>com.aliyun.oss</groupId><artifactId>aliyun-sdk-oss</artifactId><version>${aliyun-sdk-oss.version}</version></dependency><dependency><groupId>com.aliyun</groupId><artifactId>aliyun-java-sdk-vod</artifactId><version>${aliyun-java-sdk-vod.version}</version></dependency><dependency><groupId>com.aliyun</groupId><artifactId>aliyun-java-vod-upload</artifactId><version>${aliyun-java-vod-upload.version}</version></dependency><dependency><groupId>com.aliyun</groupId><artifactId>aliyun-sdk-vod-upload</artifactId><version>${aliyun-sdk-vod-upload.version}</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>${fastjson.version}</version></dependency><dependency><groupId>org.json</groupId><artifactId>json</artifactId><version>${json.version}</version></dependency><dependency><groupId>commons-dbutils</groupId><artifactId>commons-dbutils</artifactId><version>${commons-dbutils.version}</version></dependency><dependency><groupId>com.alibaba.otter</groupId><artifactId>canal.client</artifactId><version>${canal.client.version}</version></dependency></dependencies>
</dependencyManagement>

删除src目录

在父工程guli-parent下面创建子模块service

添加模块类型是pom

添加项目需要的依赖

<dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-netflix-ribbon</artifactId></dependency><!--hystrix依赖，主要是用  @HystrixCommand --><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-netflix-hystrix</artifactId></dependency><!--服务注册--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><!--服务调用--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!--mybatis-plus--><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId></dependency><!--mysql--><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency><!-- velocity 模板引擎, Mybatis Plus 代码生成器需要 --><dependency><groupId>org.apache.velocity</groupId><artifactId>velocity-engine-core</artifactId></dependency><!--swagger--><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId></dependency><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger-ui</artifactId></dependency><!--lombok用来简化实体类：需要安装lombok插件--><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><!--xls--><dependency><groupId>org.apache.poi</groupId><artifactId>poi</artifactId></dependency><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId></dependency><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId></dependency><!--httpclient--><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId></dependency><!--commons-io--><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId></dependency><!--gson--><dependency><groupId>com.google.code.gson</groupId><artifactId>gson</artifactId></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version></dependency>
</dependencies>

暂时有些组件用不到要注掉

service下面也要创建子模块，service中也不需要写具体代码，所以src目录也要删掉

在父工程service模块下面创建子模块service-edu

在service下面service-edu模块中创建配置文件

resources目录下创建文件 application.properties

或者在resources目录下创建文件application.yml

创建Mybatis-Plus代码生成器

官方文档：代码生成器（旧） | MyBatis-Plus

注意之前要引入这个依赖

在test/java目录下创建包com.atguigu.eduservice，创建代码生成器：CodeGenerator.java

package com.nanjing.demo;import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
import com.baomidou.mybatisplus.generator.config.GlobalConfig;
import com.baomidou.mybatisplus.generator.config.PackageConfig;
import com.baomidou.mybatisplus.generator.config.StrategyConfig;
import com.baomidou.mybatisplus.generator.config.rules.DateType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import org.junit.Test;/*** @author* @since 2018/12/13*/
public class CodeGenerator {@Testpublic void run() {// 1、创建代码生成器AutoGenerator mpg = new AutoGenerator();// 2、全局配置GlobalConfig gc = new GlobalConfig();String projectPath = System.getProperty("user.dir");//gc.setOutputDir(projectPath + "/src/main/java");gc.setOutputDir("D:\\idea-workspace\\guli_parent\\service\\service_edu" + "/src/main/java");gc.setAuthor("yimo");//作者gc.setOpen(false); //生成后是否打开资源管理器gc.setFileOverride(false); //重新生成时文件是否覆盖gc.setServiceName("%sService"); //去掉Service接口的首字母Igc.setIdType(IdType.ID_WORKER); //主键策略gc.setDateType(DateType.ONLY_DATE);//定义生成的实体类中日期类型gc.setSwagger2(true);//开启Swagger2模式mpg.setGlobalConfig(gc);// 3、数据源配置DataSourceConfig dsc = new DataSourceConfig();dsc.setUrl("jdbc:mysql://localhost:3306/guli?serverTimezone=GMT%2B8");dsc.setDriverName("com.mysql.jdbc.Driver");dsc.setUsername("root");dsc.setPassword("mysql");dsc.setDbType(DbType.MYSQL);mpg.setDataSource(dsc);// 4、包配置PackageConfig pc = new PackageConfig();pc.setParent("com.nanjing");pc.setModuleName("eduservice"); //模块名pc.setController("controller");pc.setEntity("entity");pc.setService("service");pc.setMapper("mapper");mpg.setPackageInfo(pc);// 5、策略配置StrategyConfig strategy = new StrategyConfig();strategy.setInclude("edu_teacher");//多张表用逗号分隔strategy.setNaming(NamingStrategy.underline_to_camel);//数据库表映射到实体的命名策略strategy.setTablePrefix(pc.getModuleName() + "_"); //生成实体时去掉表前缀strategy.setColumnNaming(NamingStrategy.underline_to_camel);//数据库表字段映射到实体的命名策略strategy.setEntityLombokModel(true); // lombok 模型 @Accessors(chain = true) setter链式操作strategy.setRestControllerStyle(true); //restful api风格控制器strategy.setControllerMappingHyphenStyle(true); //url中驼峰转连字符mpg.setStrategy(strategy);// 6、执行mpg.execute();}
}

编写controller代码

创建SpringBoot启动类

创建启动类 EduApplication.java，注意启动类的创建位置

在Spring Boot启动类中添加@MapperScan注解，扫描Mapper文件夹，

谷粒学院-项目功能模块、技术点、整合Mybatis-Plus_ZHOU_VIP的博客-CSDN博客

当然也可以用配置类，配置Mapper等。

创建SpringBoot配置类

在edu包下创建config包，创建EduConfig.java

package com.nanjing.eduservice.config;import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Configuration;/*** @author yimo* @version 1.0* @date 2022/3/19 15:28*/
@Configuration
@MapperScan("com.nanjing.eduservice.mapper")
public class EduConfig {
}

可以增加其他配置，比如配置SQL执行性能分析插件

package com.nanjing.eduservice.config;import com.baomidou.mybatisplus.extension.plugins.PerformanceInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;/*** @author yimo* @version 1.0* @date 2022/3/19 15:28*/
@Configuration
@MapperScan("com.nanjing.eduservice.mapper")
public class EduConfig {/*** SQL执行效率插件** @return*/@Bean@Profile({"dev","test"})// 指定环境为dev test生效public PerformanceInterceptor performanceInterceptor() {PerformanceInterceptor interceptor = new PerformanceInterceptor();// sql美化打印interceptor.setFormat(true);// 设置SQL超时时间interceptor.setMaxTime(1000);//ms，超过此处设置的ms则sql不执行return interceptor;}
}

测试，运行启动类

http://localhost:8001/eduservice/teacher/findAll

发现上面的时间格式不对，需要统一返回的json时间格式

默认情况下json时间格式带有时区，并且是世界标准时间，和我们的时间差了八个小时

在application.properties中设置

跨域设置

1、什么是跨域

浏览器从一个域名的网页去请求另一个域名的资源时，域名、端口、协议任一不同，都是跨域。

前后端分离开发中，需要考虑ajax跨域的问题。

这里我们可以从服务端解决这个问题

2、配置

在Controller类上添加注解

@CrossOrigin //跨域

谷粒学院-数据库设计、搭建项目环境、Mybatis-Plus代码生成器相关推荐

（硅谷课堂项目）Java开发笔记2：项目概述，搭建项目环境和开发讲师管理接口
文章目录 (硅谷课堂项目)Java开发笔记2:项目概述,搭建项目环境和开发讲师管理接口 1.项目概述 1.1 项目介绍 1.2 硅谷课程流程图 1.3 硅谷课堂功能架构 1.4 硅谷课堂技术架构 1. ...
SpringCloud系列二：Restful 基础架构（搭建项目环境、创建 Dept 微服务、客户端调用微服务）...
声明:本文来源于MLDN培训视频的课堂笔记,写在这里只是为了方便查阅. 1.概念:Restful 基础架构 2.具体内容对于 Rest 基础架构实现处理是 SpringCloud 核心所在,其基本操 ...
SpringCloud 搭建项目环境、创建 Dept 微服务、客户端调用微服务
对于 Rest 基础架构实现处理是 SpringCloud 核心所在,其基本操作形式在 SpringBoot 之中已经有了明确的讲解,那么本次为了清晰可见,创建一套新的微服务架构:部门微服务(De ...
mysql oa数据库设计_OA项目1：环境搭建之数据库创建与环境添加
首注:本学习教程为传智播客汤阳光讲师所公布的免费OA项目视频我的文字版实践笔记,本人用此来加强巩固自己开发知识,如有网友转载,请注明.谢谢. 一指定数据库:Mysql database:oa 建 ...
基于Winform菜鸟驿站管理系统1——数据库设计、项目搭建、Common层介绍
数据库设计数据模型设计数据库及表创建1 数据库及表创建2
移动商城第一篇【搭建项目环境+数据模型】
前言本次该项目使用的技术如下: 这里写图片描述搭建Oracle数据库环境本次我们用Oracle作为我们的服务器,我们一般开发并不是把数据表放在我们练习的scott用户下的. 需要我们自己创建用户 ...
【谷粒学院】001-项目概述、Mybatis Plus入门
目录一.项目概述 1.项目来源 2.功能简介 3.技术架构二.Mybatis-Plus概述 1.简介 2.特性三.Mybatis-Plus入门 1.创建数据库 2.创建 User 表表结构: ...
【C#+SQL Server+打印组件】实现电商快递单打印系统二：数据库设计与开发环境（附源码和资源）
需要源码和资源请点赞关注收藏后评论区留言私信~~~ 一.系统开发环境要求开发快递单打印精灵项目的计算机需要满足以上条件操作系统:windows7以上开发环境:Visual Studio 2022 ...
java spring 数据库_JAVA - SpringBoot项目引用MyBatis操作数据库
JAVA - SpringBoot项目引用MyBatis操作数据库添加POM依赖: org.mybatis.spring.boot mybatis-spring-boot-starter 2.1.1 ...

谷粒学院-数据库设计、搭建项目环境、Mybatis-Plus代码生成器

谷粒学院-数据库设计、搭建项目环境、Mybatis-Plus代码生成器相关推荐

最新文章

热门文章