从0到100：基于Java的大学选修课选课小程序开发笔记（上）

背景

为学生提供便捷的课程选择方式，并帮助学校进行课程管理和资源调配；主要功能包括：课程展示，自主选课，取消选课，后台录入课程，统计每门课程报名情况，导出数据，用户管理，管理员管理等。

用户角色：查看课程详情（课程大纲、授课方式、考核方式、学分等信息）、在特定的时间窗口内开放选课，用户可以在规定时间内自由选课
管理员角色：发布选修课程信息，包括课程内容、时间安排、教学大纲
后台选课管理：按每门课程进行选课统计，支持名单数据导出Excel，打印

概要设计

在这里插入图片描述

技术运用

前端基于微信小程序平台进行开发
后端基于Java Springboot架构开发
数据库： MySQL (8.0+)

数据库设计


-- ----------------------------
-- Table structure for enlesson_enroll
-- ----------------------------
DROP TABLE IF EXISTS `enlesson_enroll`;
CREATE TABLE `enlesson_enroll`  (`ENROLL_ID` int NOT NULL AUTO_INCREMENT,`ENROLL_TITLE` varchar(255) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,`ENROLL_VOUCH` int NOT NULL DEFAULT 0,`ENROLL_STATUS` int NOT NULL DEFAULT 0,`ENROLL_CATE_ID` int NOT NULL DEFAULT 0,`ENROLL_CATE_NAME` varchar(255) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,`ENROLL_MAX_CNT` int NOT NULL DEFAULT 0,`ENROLL_START` bigint NOT NULL,`ENROLL_END` bigint NOT NULL,`ENROLL_ORDER` int NOT NULL DEFAULT 9999,`ENROLL_VIEW_CNT` int NOT NULL,`ENROLL_JOIN_CNT` int NOT NULL DEFAULT 9,`ENROLL_FORMS` longtext CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,`ENROLL_OBJ` longtext CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,`ADD_TIME` bigint NULL DEFAULT 0,`EDIT_TIME` bigint NULL DEFAULT 0,PRIMARY KEY (`ENROLL_ID`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 21 CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;-- ----------------------------
-- Table structure for enlesson_enroll_join
-- ----------------------------
DROP TABLE IF EXISTS `enlesson_enroll_join`;
CREATE TABLE `enlesson_enroll_join`  (`ENROLL_JOIN_ID` int NOT NULL AUTO_INCREMENT,`ENROLL_JOIN_ENROLL_ID` int NOT NULL DEFAULT 0,`ENROLL_JOIN_USER_ID` int NOT NULL DEFAULT 0,`ENROLL_JOIN_STATUS` int NOT NULL DEFAULT 0,`ADD_TIME` bigint NOT NULL DEFAULT 0,`EDIT_TIME` bigint NOT NULL DEFAULT 0,PRIMARY KEY (`ENROLL_JOIN_ID`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 1931 CHARACTER SET = utf8mb3 COLLATE = utf8mb3_general_ci ROW_FORMAT = Dynamic;-- ----------------------------
-- Table structure for enlesson_fav
-- ----------------------------
DROP TABLE IF EXISTS `enlesson_fav`;
CREATE TABLE `enlesson_fav`  (`FAV_ID` int NOT NULL AUTO_INCREMENT,`FAV_USER_ID` int NOT NULL DEFAULT 0,`FAV_TITLE` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,`FAV_TYPE` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,`FAV_OID` int NOT NULL DEFAULT 0,`FAV_PATH` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,`ADD_TIME` bigint NOT NULL DEFAULT 0,`EDIT_TIME` bigint NOT NULL DEFAULT 0,PRIMARY KEY (`FAV_ID`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 29 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = DYNAMIC;-- ----------------------------
-- Table structure for enlesson_news
-- ----------------------------
DROP TABLE IF EXISTS `enlesson_news`;
CREATE TABLE `enlesson_news`  (`NEWS_ID` int NOT NULL AUTO_INCREMENT,`NEWS_TITLE` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,`NEWS_CATE_ID` int NOT NULL DEFAULT 0,`NEWS_CATE_NAME` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL,`NEWS_STATUS` int NOT NULL DEFAULT 1,`NEWS_ORDER` int NOT NULL DEFAULT 9999,`NEWS_VOUCH` int NOT NULL DEFAULT 0,`NEWS_CONTENT` longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL,`NEWS_VIEW_CNT` int NOT NULL DEFAULT 0,`NEWS_PIC` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL,`NEWS_OBJ` longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL,`NEWS_FORMS` longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL,`ADD_TIME` bigint NOT NULL DEFAULT 0,`EDIT_TIME` bigint NOT NULL DEFAULT 0,PRIMARY KEY (`NEWS_ID`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 68 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = DYNAMIC;-- ----------------------------
-- Table structure for enlesson_setup
-- ----------------------------
DROP TABLE IF EXISTS `enlesson_setup`;
CREATE TABLE `enlesson_setup`  (`SETUP_ID` int NOT NULL AUTO_INCREMENT,`SETUP_TYPE` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,`SETUP_KEY` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,`SETUP_VALUE` longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,`ADD_TIME` bigint NOT NULL DEFAULT 0,`EDIT_TIME` bigint NOT NULL DEFAULT 0,PRIMARY KEY (`SETUP_ID`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 9 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = DYNAMIC;-- ----------------------------
-- Table structure for enlesson_user
-- ----------------------------
DROP TABLE IF EXISTS `enlesson_user`;
CREATE TABLE `enlesson_user`  (`USER_ID` int NOT NULL AUTO_INCREMENT,`USER_NAME` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,`USER_ACCOUNT` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,`USER_STATUS` int NOT NULL DEFAULT 1,`USER_PASSWORD` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,`USER_LOGIN_TIME` bigint NOT NULL DEFAULT 0,`USER_LOGIN_CNT` int NOT NULL DEFAULT 0,`USER_OBJ` longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL,`USER_FORMS` longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL,`ADD_TIME` bigint NOT NULL DEFAULT 0,`EDIT_TIME` bigint NOT NULL DEFAULT 0,PRIMARY KEY (`USER_ID`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 1219 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = DYNAMIC;SET FOREIGN_KEY_CHECKS = 1;