@[TOC]《每天一个小项目》第一章课程管理

《每天一个小项目》第一章课程管理

今天是2021.03.16 从今天开始开启 《每天一个小项目》 计划每天变强一点点但愿不要变秃但不一定每天都能更估计也没几个人看那我就开始冲冲冲了！！！！！

主题：课程管理

各位可能已经听够了各种各样的管理了但是没法儿啊谁能逃过增删改查呢？？？

课程发布 （附效果图）
1.1 基本信息

1.2 大纲管理

1.3 提交审核
在这里插入图片描述

必备环节：小敲一下

项目前后端分离软件后端万年不变 IDER ，前端 VsCode
用的技术：

后端：SpringBoot， JWT， SpringCloud， Maven，RabbitMQ
数据库不多说了Myspl
前端：Vue ，Es6 ， ElementUi ，ajax

下面附上代码

数据库

# 课程章节表

CREATE TABLE `edu_chapter`  (

  `id` VARCHAR(32) PRIMARY KEY COMMENT '章节ID',

  `course_id` VARCHAR(32) COMMENT '课程ID',

  `title` VARCHAR(50)  COMMENT '章节名称',

  `sort` INT(10) DEFAULT 0 COMMENT '显示排序',

  `gmt_create` DATETIME  COMMENT '创建时间',

  `gmt_modified` DATETIME COMMENT '更新时间'

)COMMENT = '课程章节';



INSERT INTO `edu_chapter` VALUES ('1', '14', '第一章：HTML', 1, '2020-01-01 12:27:40', '2020-01-01 12:55:30');

INSERT INTO `edu_chapter` VALUES ('15', '18', '第一章：Java入门', 1, '2020-01-01 12:27:40', '2020-01-01 12:27:40');

INSERT INTO `edu_chapter` VALUES ('3', '14', '第二章：CSS', 2, '2020-01-01 12:55:35', '2020-01-01 12:27:40');

INSERT INTO `edu_chapter` VALUES ('32', '18', '第二章：控制台输入和输出', 2, '2020-01-01 12:27:40', '2020-01-01 12:27:40');

INSERT INTO `edu_chapter` VALUES ('44', '18', '第三章：控制流', 3, '2020-01-01 12:27:40', '2020-01-01 12:27:40');

INSERT INTO `edu_chapter` VALUES ('48', '18', '第四章：类的定义', 4, '2020-01-01 12:27:40', '2020-01-01 12:27:40');

INSERT INTO `edu_chapter` VALUES ('63', '18', '第五章：数组', 5, '2020-01-01 12:27:40', '2020-01-01 12:27:40');

INSERT INTO `edu_chapter` VALUES ('64', '18', '第六章：继承', 6, '2020-01-01 12:27:40', '2020-01-01 12:27:40');

INSERT INTO `edu_chapter` VALUES ('65', '18', '第七章：多态性和抽象类', 7, '2020-01-01 12:27:40', '2020-01-01 12:27:40');



#课程表

CREATE TABLE `edu_course`  (

  `id` VARCHAR(32) PRIMARY KEY COMMENT '课程ID',

  `teacher_id` INT(19) COMMENT '课程讲师ID',

  `subject_id` VARCHAR(32) COMMENT '课程专业ID二级分类ID',

  `subject_parent_id` VARCHAR(32) COMMENT '一级分类ID',

  `title` VARCHAR(50) COMMENT '课程标题',

  `price` DECIMAL(10, 4) DEFAULT 0.0000 COMMENT '课程销售价格，设置为0则可免费观看',

  `lesson_num` INT(10) DEFAULT 0 COMMENT '总课时',

  `cover` VARCHAR(255) COMMENT '课程封面图片路径',

  `buy_count` BIGINT(10) DEFAULT 0 COMMENT '销售数量',

  `view_count` BIGINT(10) DEFAULT 0 COMMENT '浏览数量',

  `version` BIGINT(20) DEFAULT 1 COMMENT '乐观锁',

  `status` VARCHAR(10) DEFAULT 'Draft' COMMENT '视频状态 Draft未发布  Normal已发布',

  `gmt_create` DATETIME  COMMENT '创建时间',

  `gmt_modified` DATETIME  COMMENT '更新时间'

)COMMENT = '课程';



INSERT INTO `edu_course` VALUES ('10', 1, '221', NULL, '零基础入门学习Python课程学习', 1.0000, 10, '', 80, 165, 21, 'Draft', '2020-03-26 00:00:28', '2020-02-21 20:46:36');

INSERT INTO `edu_course` VALUES ('1282276374928773122', 1, '401', '4', '测试003', 10.0000, 100, '', 0, 0, 1, 'Draft', '2020-07-12 19:31:25', '2020-07-12 19:46:44');

INSERT INTO `edu_course` VALUES ('1282620880706351106', 1, '', '', '', 0.0000, 0, '', 0, 0, 1, 'Draft', '2020-07-13 18:20:22', '2020-07-13 18:20:22');

INSERT INTO `edu_course` VALUES ('14', 1, '221', NULL, 'XHTML CSS2 JS整站制作教程课程学习', 0.0000, 3, '', 3, 29, 15, 'Draft', '2020-04-02 18:33:34', '2020-02-21 20:46:36');

INSERT INTO `edu_course` VALUES ('15', 1, '251', NULL, 'HTML5入门课程学习', 0.0000, 23, '', 0, 39, 17, 'Draft', '2020-04-02 18:34:32', '2020-02-21 20:46:37');

INSERT INTO `edu_course` VALUES ('17', 2, '223', NULL, 'MySql从入门到精通', 0.0000, 100, '', 34, 130, 4, 'Draft', '2020-04-02 21:13:58', '2020-02-21 20:46:38');

INSERT INTO `edu_course` VALUES ('18', 2, '202', NULL, 'Java精品课程', 0.0000, 20, '', 150, 522, 6, 'Draft', '2020-04-02 21:28:46', '2020-02-21 20:46:39');

INSERT INTO `edu_course` VALUES ('21', 3, '221', NULL, '搜索引擎优化技术', 0.0000, 23, '', 23, 123, 1, 'Draft', '2020-09-15 11:38:57', '2020-02-21 20:46:40');

INSERT INTO `edu_course` VALUES ('22', 3, '223', NULL, '影响力摄影小课堂', 0.0000, 0, '', 0, 2, 3, 'Draft', '2020-11-02 10:49:41', '2020-02-21 20:46:40');

INSERT INTO `edu_course` VALUES ('24', 3, '223', NULL, '国家教师资格考试', 0.0000, 12, '', 324, 25, 3, 'Draft', '2020-11-04 09:48:44', '2020-02-21 20:46:41');

INSERT INTO `edu_course` VALUES ('25', 3, '223', NULL, '听力口语训练营', 0.0000, 0, '', 0, 13, 14, 'Draft', '2020-02-26 19:23:48', '2020-02-21 20:46:42');

INSERT INTO `edu_course` VALUES ('26', 4, '223', NULL, 'CAD4零基础教学', 0.0000, 0, '', 0, 34, 35, 'Draft', '2020-02-26 19:24:44', '2020-02-21 20:46:43');



#课程简介

CREATE TABLE `edu_course_description`  (

  `id` VARCHAR(32) PRIMARY KEY COMMENT '课程ID',

  `description` MEDIUMTEXT COMMENT '课程简介',

  `gmt_create` DATETIME COMMENT '创建时间',

  `gmt_modified` DATETIME COMMENT '更新时间'

) COMMENT = '课程简介';



INSERT INTO `edu_course_description` VALUES ('1282276374928773122', '<p>好课程--传智造</p>', '2020-07-12 19:31:25', '2020-07-12 19:46:44');

INSERT INTO `edu_course_description` VALUES ('1282620880706351106', '', '2020-07-13 18:20:22', '2020-07-13 18:20:22');



#课程视频

CREATE TABLE `edu_video`  (

  `id` VARCHAR(32) PRIMARY KEY COMMENT '视频ID',

  `course_id` VARCHAR(32) COMMENT '课程ID',

  `chapter_id` VARCHAR(32) COMMENT '章节ID',

  `title` VARCHAR(50) COMMENT '节点名称',

  `sort` INT(10) DEFAULT 0 COMMENT '排序字段',

  `play_count` BIGINT(20) DEFAULT 0 COMMENT '播放次数',

  `is_free` TINYINT(1) DEFAULT 0 COMMENT '是否可以试听：0免费 1收费',

  `video_source_id` VARCHAR(100) COMMENT '视频资源',

  `video_original_name` VARCHAR(50) COMMENT '视频原始文件名字',

  `duration` FLOAT NOT NULL DEFAULT 0 COMMENT '视频时长（秒）',

  `status` VARCHAR(20) DEFAULT '' COMMENT '视频状态:见阿里云文档',

  `size` BIGINT(20) DEFAULT 0 COMMENT '视频源文件大小（字节）',

  `version` BIGINT(20) 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'

)COMMENT = '课程视频';



INSERT INTO `edu_video` VALUES ('17', '18', '15', '第一节：Java简介', 1, 1000, 1, '', 100, 'Draft', 0, 1, '2020-01-01 13:08:57', '2020-02-21 20:46:08');

INSERT INTO `edu_video` VALUES ('18', '18', '15', '第二节：表达式和赋值语句', 2, 999, 1, '', 100, 'Draft', 0, 1, '2020-01-01 13:09:02', '2020-02-21 20:46:09');

INSERT INTO `edu_video` VALUES ('19', '18', '15', '第三节：String类', 3, 888, 0, '', 100, 'Draft', 0, 1, '2020-01-01 13:09:05', '2020-02-21 20:46:10');

INSERT INTO `edu_video` VALUES ('20', '18', '15', '第四节：程序风格', 4, 666, 0, '', 100, 'Draft', 0, 1, '2020-01-01 13:09:05', '2020-02-21 20:46:10');

搭建后端 domain

在这里插入图片描述

•EduVideo
 package com.czxy.zx.domain;



import com.baomidou.mybatisplus.annotation.FieldFill;

import com.baomidou.mybatisplus.annotation.IdType;

import com.baomidou.mybatisplus.annotation.TableField;

import com.baomidou.mybatisplus.annotation.TableId;

import io.swagger.annotations.ApiModel;

import io.swagger.annotations.ApiModelProperty;

import lombok.Data;



import java.io.Serializable;

import java.util.Date;



/**

 * 课程视频

 *

 */

@Data

@ApiModel(value="EduVideo对象", description="课程视频")

public class EduVideo {
    
    



    @ApiModelProperty(value = "视频ID")

    @TableId(value = "id", type = IdType.ASSIGN_UUID)

    private String id;



    @ApiModelProperty(value = "课程ID")

    private String courseId;



    @ApiModelProperty(value = "章节ID")

    private String chapterId;



    @ApiModelProperty(value = "节点名称")

    private String title;



    @ApiModelProperty(value = "排序字段")

    private Integer sort;



    @ApiModelProperty(value = "播放次数")

    private Long playCount;



    @ApiModelProperty(value = "是否可以试听：0免费 1收费")

    private Integer isFree;



    @ApiModelProperty(value = "视频资源")

    private String videoSourceId;



    @ApiModelProperty(value = "视频原始文件名字")

    private String videoOriginalName;



    @ApiModelProperty(value = "视频时长（秒）")

    private Float duration;



    @ApiModelProperty(value = "视频状态:见阿里云文档")

    private String status;



    @ApiModelProperty(value = "视频源文件大小（字节）")

    private Long size;



    @ApiModelProperty(value = "乐观锁")

    private Long version;



    @ApiModelProperty(value = "创建时间")

    @TableField(value = "gmt_create",fill = FieldFill.INSERT)

    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")

    private Date gmtCreate;



    @ApiModelProperty(value = "更新时间")

    @TableField(value = "gmt_modified",fill = FieldFill.INSERT_UPDATE)

    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")

    private Date gmtModified;



}

 
•EduChapter
 package com.czxy.zx.domain;



import com.baomidou.mybatisplus.annotation.FieldFill;

import com.baomidou.mybatisplus.annotation.IdType;

import com.baomidou.mybatisplus.annotation.TableField;

import com.baomidou.mybatisplus.annotation.TableId;

import io.swagger.annotations.ApiModel;

import io.swagger.annotations.ApiModelProperty;

import lombok.Data;



import java.io.Serializable;

import java.util.Date;



/**

 * 课程

 *

 */

@Data

@ApiModel(value="EduChapter对象", description="课程")

public class EduChapter {
    
    



    @ApiModelProperty(value = "章节ID")

    @TableId(value = "id", type = IdType.ASSIGN_UUID)

    private String id;



    @ApiModelProperty(value = "课程ID")

    private String courseId;



    @ApiModelProperty(value = "章节名称")

    private String title;



    @ApiModelProperty(value = "显示排序")

    private Integer sort;



    @ApiModelProperty(value = "创建时间")

    @TableField(fill = FieldFill.INSERT, value = "gmt_create")

    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")

    private Date gmtCreate;



    @ApiModelProperty(value = "更新时间")

    @TableField(fill = FieldFill.INSERT_UPDATE, value = "gmt_modified")

    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")

    private Date gmtModified;





}

 
•EduCourse
 package com.czxy.zx.domain;



import com.baomidou.mybatisplus.annotation.FieldFill;

import com.baomidou.mybatisplus.annotation.IdType;

import com.baomidou.mybatisplus.annotation.TableField;

import com.baomidou.mybatisplus.annotation.TableId;

import io.swagger.annotations.ApiModel;

import io.swagger.annotations.ApiModelProperty;

import lombok.Data;



import java.io.Serializable;

import java.math.BigDecimal;

import java.util.Date;



/**

 * 课程

 *

 */

@Data

@ApiModel(value="EduCourse对象", description="课程")

public class EduCourse {
    
    



    @ApiModelProperty(value = "课程ID")

    @TableId(value = "id", type = IdType.ASSIGN_UUID)

    private String id;



    @ApiModelProperty(value = "课程讲师ID")

    private String teacherId;



    @ApiModelProperty(value = "课程专业ID二级分类ID")

    private String subjectId;



    @ApiModelProperty(value = "一级分类ID")

    private String subjectParentId;



    @ApiModelProperty(value = "课程标题")

    private String title;



    @ApiModelProperty(value = "课程销售价格，设置为0则可免费观看")

    private BigDecimal price;



    @ApiModelProperty(value = "总课时")

    private Integer lessonNum;



    @ApiModelProperty(value = "课程封面图片路径")

    private String cover;



    @ApiModelProperty(value = "销售数量")

    private Long buyCount;



    @ApiModelProperty(value = "浏览数量")

    private Long viewCount;



    @ApiModelProperty(value = "乐观锁")

    private Long version;



    @ApiModelProperty(value = "视频状态 Draft未发布  Normal已发布")

    private String status;



    @ApiModelProperty(value = "创建时间")

    @TableField(fill = FieldFill.INSERT, value = "gmt_create")

    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")

    private Date gmtCreate;



    @ApiModelProperty(value = "更新时间")

    @TableField(fill = FieldFill.INSERT_UPDATE, value = "gmt_modified")

    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")

    private Date gmtModified;





}

 
•EduCourseDescription
 package com.czxy.zx.domain;



import com.baomidou.mybatisplus.annotation.FieldFill;

import com.baomidou.mybatisplus.annotation.IdType;

import com.baomidou.mybatisplus.annotation.TableField;

import com.baomidou.mybatisplus.annotation.TableId;

import io.swagger.annotations.ApiModel;

import io.swagger.annotations.ApiModelProperty;

import lombok.Data;



import java.io.Serializable;

import java.util.Date;



/**

 * 课程简介

 *

 */

@Data

@ApiModel(value="EduCourseDescription对象", description="课程简介")

public class EduCourseDescription {
    
    





    @ApiModelProperty(value = "课程ID")

    //将CourseDescription和Course的ID保持一致

    @TableId(value = "id", type = IdType.INPUT)

    private String id;



    @ApiModelProperty(value = "课程简介")

    private String description;



    @ApiModelProperty(value = "创建时间")

    @TableField(fill = FieldFill.INSERT, value = "gmt_create")

    private Date gmtCreate;



    @ApiModelProperty(value = "更新时间")

    @TableField(fill = FieldFill.INSERT_UPDATE, value = "gmt_modified")

    private Date gmtModified;





}

后端 mapper 接口

在这里插入图片描述


package com.czxy.course.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.czxy.domain.Chapter;
import org.apache.ibatis.annotations.Mapper;
/**
 * 课程章节 Mapper 接口
 */
@Mapper
public interface ChapterMapper extends BaseMapper<Chapte> {
    
     

}




package com.czxy.course.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.czxy.domain.CourseDescription;
import org.apache.ibatis.annotations.Mapper;
/**
 * 课程介绍 Mapper 接口
 */
@Mapper
public interface CourseDecriptionMapper  extends BaseMapper<CourseDescription> {
    
    
}




package com.czxy.course.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.czxy.domain.Video;
import org.apache.ibatis.annotations.Mapper;

/**
 * 课程视频 Mapper 接口
 *
 */
@Mapper
public interface VideoMapper  extends BaseMapper<Video> {
    
    
}


package com.czxy.course.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.czxy.domain.Course;
import org.apache.ibatis.annotations.Mapper;

/**
 * 课程 Mapper 接口
 */
@Mapper
public interface CourseMapper extends BaseMapper<Course> {
    
    
}

BaseMapper 里的要跟 daoman里命名对应

后端 service 接口

在这里插入图片描述

package com.czxy.course.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.czxy.domain.Chapter;
/*
*  课程章节 service
* 
* */
public interface ChapterService extends IService<Chapter> {
    
    
}



package com.czxy.course.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.czxy.domain.CourseDescription;



/*
* 课程介绍 service
* */

public interface CourseDecriptionService extends IService<CourseDescription> {
    
    
}






package com.czxy.course.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.czxy.domain.Course;
import org.apache.ibatis.annotations.Mapper;


/*
* 
* 课程   service
* */
@Mapper
public interface CourseMapper extends BaseMapper<Course> {
    
    
}












package com.czxy.course.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.czxy.domain.Video;



/*
*
* 课程视频  service
* */
public interface VideoService  extends IService<Video> {
    
    
}

后端 serviceImpl 实现类

在这里插入图片描述

package com.czxy.course.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.czxy.course.mapper.ChapterMapper;
import com.czxy.course.service.ChapterService;
import com.czxy.domain.Chapter;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
public class ChapterServiceImpl extends ServiceImpl<ChapterMapper, Chapter> implements ChapterService {
    
    
}







package com.czxy.course.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.czxy.course.mapper.CourseDecriptionMapper;
import com.czxy.course.service.CourseDecriptionService;
import com.czxy.domain.CourseDescription;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
public class CourseDecriptionServiceImpl  extends ServiceImpl<CourseDecriptionMapper, CourseDescription> implements CourseDecriptionService {
    
    
}








package com.czxy.course.service.impl;


import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.czxy.course.mapper.CourseMapper;
import com.czxy.course.service.CourseService;
import com.czxy.domain.Course;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
public class CourseServiceImpl  extends ServiceImpl<CourseMapper, Course> implements CourseService {
    
    


}











package com.czxy.course.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.czxy.course.mapper.VideoMapper;
import com.czxy.course.service.VideoService;
import com.czxy.domain.Video;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
public class VideoServiceImpl extends ServiceImpl<VideoMapper, Video> implements VideoService {
    
    
}

后端 Controller 实现类

在这里插入图片描述

package com.czxy.course.controller;


import com.czxy.course.service.ChapterService;
import io.swagger.annotations.Api;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

@RestController
@RequestMapping("/chapter")
@Api(tags = "课程列表接口", description = "课程列表CRUD操作")
public class ChapterController {
    
    

    @Resource
    private ChapterService chapterService;
}













package com.czxy.course.controller;

import com.czxy.course.service.CourseService;
import io.swagger.annotations.Api;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

@RestController
@RequestMapping("/course")
@Api(tags = "课程接口", description = "课程CRUD操作")
public class CourseController {
    
    

    @Resource
    private CourseService courseService;
}











package com.czxy.course.controller;


import com.czxy.course.service.CourseDecriptionService;
import io.swagger.annotations.Api;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

@RestController
@RequestMapping("/courseDecription")
@Api(tags = "课程介绍接口", description = "课程介绍CRUD操作")

public class CourseDecriptionController {
    
    
    @Resource
    private CourseDecriptionService courseDecriptionService;
}
























package com.czxy.course.controller;


import com.czxy.course.service.VideoService;
import io.swagger.annotations.Api;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

@RestController
@RequestMapping("/video")
@Api(tags = "课程视频接口", description = "课程视频的CRUD操作")
public class VideoController {
    
    




    @Resource
    private VideoService videoService;
}

行了行了今天就到这里了 Ctrl +C Ctrl+V 太累的搞不动了前端的下回附上 886

在这里插入图片描述

《每天一个小项目》第一章课程管理 20210316

《每天一个小项目》第一章课程管理

主题：课程管理

必备环节：小敲一下

下面附上代码

数据库

搭建后端 domain

后端 mapper 接口

后端 service 接口

后端 serviceImpl 实现类

后端 Controller 实现类

行了行了今天就到这里了 Ctrl +C Ctrl+V 太累的搞不动了前端的下回附上 886

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