【在线教育】课程科目入门
文章目录
2.0 分析
2.1 环境搭建
2.1.1 数据库
2.1.2 后端:环境
2.1.3 后端:基本模块
2.1.4 前端
2.2 查询所有
2.2.1 后端实现
2.2.2 前端接口
2.2.3 前端实现
2.3 导入科目
2.3.1 需求
2.3.2 前端
2.3.2 前端:完整版
2.3.4 后端
2.0 分析
2.1 环境搭建
2.1.1 数据库
CREATE DATABASE zx_edu_course; USE zx_edu_course; CREATE TABLE `edu_subject` (`id` VARCHAR(32) NOT NULL PRIMARY KEY COMMENT '课程科目ID',`title` VARCHAR(10) NOT NULL COMMENT '科目名称',`parent_id` VARCHAR(32) NOT NULL DEFAULT '0' COMMENT '父ID',`sort` INT(10) 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' ) COMMENT = '课程科目'; INSERT INTO `edu_subject` VALUES ('1', '云计算', '0', 0, '2020-06-26 09:41:21', '2020-02-20 23:25:58'); INSERT INTO `edu_subject` VALUES ('2', '系统/运维', '0', 0, '2020-02-20 23:29:59', '2020-02-20 23:29:59'); INSERT INTO `edu_subject` VALUES ('3', '数据库', '0', 0, '2020-02-20 23:30:13', '2020-02-20 23:30:13'); INSERT INTO `edu_subject` VALUES ('4', '服务器', '0', 0, '2020-02-20 23:30:19', '2020-02-20 23:30:19'); INSERT INTO `edu_subject` VALUES ('5', 'MySQL', '3', 1, '2020-02-20 23:30:13', '2020-02-20 23:30:13'); INSERT INTO `edu_subject` VALUES ('6', 'Oracle', '3', 2, '2020-02-20 23:30:13', '2020-02-20 23:30:13'); INSERT INTO `edu_subject` VALUES ('7', 'Tomcat', '4', 1, '2020-02-20 23:30:13', '2020-02-20 23:30:13'); INSERT INTO `edu_subject` VALUES ('8', 'Nginx ', '4', 2, '2020-02-20 23:30:13', '2020-02-20 23:30:13'); INSERT INTO `edu_subject` VALUES ('9', 'MySQL优化', '5', 1, '2020-02-20 23:30:13', '2020-02-20 23:30:13');
2.1.2 后端:环境
项目名:zx-service-course
pom文件
<dependencies><!--web起步依赖--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!-- nacos 客户端 --><dependency><groupId>com.alibaba.nacos</groupId><artifactId>nacos-client</artifactId></dependency> <!-- nacos 服务发现 --><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency> <!--swagger2--><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId></dependency><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger-ui</artifactId></dependency> <!-- feign 远程调用 --><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId></dependency> <!--测试--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId></dependency> <!-- mybatis plus--><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>${mybatis.plus.version}</version></dependency><!-- mysql驱动 --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency><!--自定义项目--><dependency><groupId>com.czxy.zx</groupId><artifactId>zx-common31</artifactId></dependency><dependency><groupId>com.czxy.zx</groupId><artifactId>zx-domain31</artifactId></dependency> <!-- redis 启动器 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-redis</artifactId></dependency><!-- JavaMail 启动器 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-mail</artifactId></dependency><!-- MQ 启动器 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-amqp</artifactId></dependency> <!-- fastjson --><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId></dependency> <!--开发者工具--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-devtools</artifactId><optional>true</optional></dependency> <dependency><groupId>com.alibaba</groupId><artifactId>easyexcel</artifactId><version>3.0.5</version></dependency> </dependencies>
yml文件
# 服务端口号 server:port: 9020 # 服务名 spring:application:name: course-servicedatasource:driverClassName: com.mysql.jdbc.Driverurl: jdbc:mysql://127.0.0.1:3306/zx_edu_course?useUnicode=true&characterEncoding=utf8username: rootpassword: 1234druid: #druid 连接池配置initial-size: 1 #初始化连接池大小min-idle: 1 #最小连接数max-active: 20 #最大连接数test-on-borrow: true #获取连接时候验证,会影响性能cloud:nacos:discovery:server-addr: 127.0.0.1:8848 #nacos服务地址redis:database: 0 #数据库索引,取值0-15,表示16个库可选择host: 127.0.0.1 #服务器地址port: 6379 #服务器连接端口号mail:host: smtp.126.com #发送邮件服务器username: itcast_lt@126.com #账号password: 1qaz2wsx #密码default-encoding: UTF-8 #默认编码时rabbitmq:host: 127.0.0.1port: 5672username: guestpassowrd: guestvirtualHost: /devtools:restart:enabled: true #设置开启热部署additional-paths: src/main/java #重启目录exclude: WEB-INF/**freemarker:cache: false #页面不加载缓存,修改即时生效 #开启log4j打印SQL语句 logging:level:com:czxy:mapper: debug # mp日志打印 mybatis-plus:configuration:log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
启动类
package com.czxy.zx; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.client.discovery.EnableDiscoveryClient; import org.springframework.cloud.openfeign.EnableFeignClients; /*** @author 桐叔* @email liangtong@itcast.cn*/ @SpringBootApplication @EnableDiscoveryClient @EnableFeignClients public class CourseServiceApplication {public static void main(String[] args) {SpringApplication.run(CourseServiceApplication.class,args);} }
拷贝配置
2.1.3 后端:基本模块
创建JavaBean
package com.czxy.zx.domain; import com.baomidou.mybatisplus.annotation.IdType; import com.baomidou.mybatisplus.annotation.TableField; import com.baomidou.mybatisplus.annotation.TableId; import com.baomidou.mybatisplus.annotation.TableName; import com.fasterxml.jackson.annotation.JsonFormat; import lombok.Data; import org.springframework.format.annotation.DateTimeFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; /*** 课程科目(EduSubject)表实体类** @author 桐叔*/ @Data @TableName("edu_subject") public class EduSubject{@TableId(type = IdType.ASSIGN_UUID)//课程科目IDprivate String id;//科目名称private String title;//父IDprivate String parentId;//排序字段private Integer sort;//创建时间@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")private Date gmtCreate;//更新时间@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")private Date gmtModified; @TableField(exist = false)@JsonInclude(JsonInclude.Include.NON_EMPTY) //生成json数据,不包含空元素private List<EduSubject> children = new ArrayList<>(); }
创建mapper
package com.czxy.zx.course.mapper; import com.baomidou.mybatisplus.core.mapper.BaseMapper; import com.czxy.zx.domain.EduSubject; import org.apache.ibatis.annotations.Mapper; /*** @author 桐叔* @email liangtong@itcast.cn*/ @Mapper public interface EduSubjectMapper extends BaseMapper<EduSubject> { }
创建service
接口
package com.czxy.zx.course.service; import com.baomidou.mybatisplus.extension.service.IService; import com.czxy.zx.domain.EduSubject; /*** @author 桐叔* @email liangtong@itcast.cn*/ public interface EduSubjectService extends IService<EduSubject> { }
实现类
package com.czxy.zx.course.service.impl; import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl; import com.czxy.zx.course.mapper.EduSubjectMapper; import com.czxy.zx.course.service.EduSubjectService; import com.czxy.zx.domain.EduSubject; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; /*** @author 桐叔* @email liangtong@itcast.cn*/ @Service @Transactional public class EduSubjectServiceImpl extends ServiceImpl<EduSubjectMapper, EduSubject> implements EduSubjectService { }
创建controller
package com.czxy.zx.course.controller; import com.czxy.zx.course.service.EduSubjectService; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import javax.annotation.Resource; /*** @author 桐叔* @email liangtong@itcast.cn*/ @RestController @RequestMapping("/subject") public class EduSubjectController { @Resourceprivate EduSubjectService eduSubjectService; }
配置类
2.1.4 前端
创建路由模块
/** When your routing table is too long, you can split it into small modules **/ import Layout from '@/layout' const courseRouter = {path: '/course', // 当前模块前缀路径,必须以/开头component: Layout, // 采用布局组件显示当前模块【默认】redirect: '/course/subjectList', // “教师管理”默认显示路由name: '课程管理', // 路由名称meta: {title: '课程管理', // 一级菜单名称,children.length==0 隐藏icon: 'table' // 一级菜单图标,children.length==0 隐藏},children: [{path: 'subjectList',component: () => import('@/views/edu/course/subjectList.vue'),name: '科目列表',meta: { title: '科目列表', icon: 'list' } //二级菜单名称}] } export default courseRouter
创建 subjectList.vue 页面
配置路由
2.2 查询所有
以树形table展示数据
2.2.1 后端实现
修改 EduSubjectController
package com.czxy.zx.course.controller; import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; import com.czxy.zx.course.service.EduSubjectService; import com.czxy.zx.domain.EduSubject; import com.czxy.zx.vo.BaseResult; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import javax.annotation.Resource; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; /*** @author 桐叔* @email liangtong@itcast.cn*/ @RestController @RequestMapping("/subject") public class EduSubjectController { @Resourceprivate EduSubjectService eduSubjectService; @GetMappingpublic BaseResult findAll() {//1 查询所有QueryWrapper queryWrapper = new QueryWrapper();queryWrapper.orderByAsc("parent_id");List<EduSubject> list = eduSubjectService.list(queryWrapper); //2 处理父子关系List<EduSubject> resultList = new ArrayList<>();Map<String,EduSubject> cache = new HashMap<>();list.forEach(eduSubject -> {// 获得父EduSubject parentEduSubject = cache.get(eduSubject.getParentId());// 如果没有父表示第一层,如果有父追加if(parentEduSubject != null) {// 如果有孩子,判断父对象的集合List<EduSubject> temp = parentEduSubject.getChildren();if(temp == null) {parentEduSubject.setChildren(new ArrayList<>());}// 将孩子添加到父对象的集合中parentEduSubject.getChildren().add(eduSubject);} else {resultList.add(eduSubject);}// 缓存当前cache.put(eduSubject.getId(),eduSubject); }); return BaseResult.ok("查询成功", resultList);} }
2.2.2 前端接口
import axios from '@/utils/request' // 查询所有课程科目 export function findAllSub() {return axios.get('/course-service/subject'); }
2.2.3 前端实现
修改
@/views/edu/course/subjectList.vue
<template><div><el-tablev-loading="listLoading":data="subjectList"borderfithighlight-current-rowstyle="width: 100%;"row-key="title":tree-props="{children: 'children'}"><el-table-column label="科目名称" prop="title" align="center" width="200"></el-table-column><el-table-column label="排序" prop="sort" width="80px" min-width="50px"></el-table-column><el-table-column label="添加时间" width="200px" align="center"><template slot-scope="{row}"><span>{{ row.gmtCreate | parseTime('{y}-{m}-{d} {h}:{i}') }}</span></template></el-table-column><el-table-column label="更新时间" width="200px" align="center"><template slot-scope="{row}"><span>{{ row.gmtModified | parseTime('{y}-{m}-{d} {h}:{i}') }}</span></template></el-table-column><el-table-column label="操作" align="center" class-name="small-padding fixed-width"><template slot-scope="{row,$index}"><el-button type="primary" size="mini">修改</el-button><el-button v-if="row.status!='deleted'" size="mini" type="danger" >删除</el-button></template></el-table-column></el-table></div> </template> <script> import { findAllSub } from '@/api/edu/course' export default {data() {return {subjectList: [] ,listLoading: false,}},methods: {async findAllSubject() { // 查询所有this.listLoading = truelet { data } = await findAllSub()this.subjectList = datathis.listLoading = false}},mounted() {this.findAllSubject()}, } </script> <style> </style>
2.3 导入科目
2.3.1 需求
2.3.2 前端
使用 upload组件
<!-- 文件上传 --><el-uploadclass="upload-demo":action="updateUrl":limit="1":on-exceed="handleExceed":before-upload="beforeUpload":on-remove="handleRemove":on-success="handleSuccess":file-list="fileList"><el-button size="small" type="primary">点击上传</el-button><div slot="tip" class="el-upload__tip">只能上传xls或xlsx文件,且不超过500kb</div></el-upload>
声明变量
data() {return {fileList: [], //上传文件列表updateUrl: process.env.VUE_APP_BASE_API + '/course-service/subject/upload', //上传路径}},
编写处理函数
handleExceed(files, fileList) { // 超出个数限制this.$message.warning(`当前选择1个文件`);},beforeUpload(file) { // 上传文件之前// 是否是 xlsx 文件(2003)const isXlsx = file.type === 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'// 是否是 xls 文件(2010)const isXls = file.type === 'application/vnd.ms-excel'const isLt2M = file.size / 1024 / 1024 < 2; if (!isXlsx && !isXls) {this.$message.error('上传文件不是excel文件!');}if (!isLt2M) {this.$message.error('上传文件大小不能超过 2MB!');}return (isXlsx || isXls) && isLt2M;},handleRemove(file, fileList) { // 文件列表移除文件console.log(file, fileList);},handleSuccess(response, file, fileList) { // 文件上传成功// 成功提示this.$message.success(response.message)// 刷新this.findAllSubject()}
2.3.2 前端:完整版
<template><div><el-tablev-loading="listLoading":data="subjectList"borderfithighlight-current-rowstyle="width: 100%;"row-key="title":tree-props="{children: 'children'}"><el-table-column label="科目名称" prop="title" align="left" width="200"></el-table-column><el-table-column label="排序" prop="sort" width="80px" min-width="50px"></el-table-column><el-table-column label="添加时间" width="200px" align="center"><template slot-scope="{row}"><span>{{ row.gmtCreate | parseTime('{y}-{m}-{d} {h}:{i}') }}</span></template></el-table-column><el-table-column label="更新时间" width="200px" align="center"><template slot-scope="{row}"><span>{{ row.gmtModified | parseTime('{y}-{m}-{d} {h}:{i}') }}</span></template></el-table-column><el-table-column label="操作" align="center" class-name="small-padding fixed-width"><template slot-scope="{row}"><el-button type="primary" size="mini">修改</el-button><el-button v-if="row.status!='deleted'" size="mini" type="danger" >删除</el-button></template></el-table-column></el-table> <!-- 文件上传 --><el-uploadclass="upload-demo":action="updateUrl":limit="1":on-exceed="handleExceed":before-upload="beforeUpload":on-remove="handleRemove":on-success="handleSuccess":file-list="fileList"><el-button size="small" type="primary">点击上传</el-button><div slot="tip" class="el-upload__tip">只能上传xls或xlsx文件,且不超过500kb</div></el-upload></div> </template> <script> import { findAllSub } from '@/api/edu/course' export default {data() {return {subjectList: [] ,listLoading: false,fileList: [], //上传文件列表updateUrl: process.env.VUE_APP_BASE_API + '/course-service/subject/upload', //上传路径}},methods: {async findAllSubject() { // 查询所有this.listLoading = truelet { data } = await findAllSub()this.subjectList = datathis.listLoading = false},handleExceed(files, fileList) { // 超出个数限制this.$message.warning(`当前选择1个文件`);},beforeUpload(file) { // 上传文件之前// 是否是 xlsx 文件(2003)const isXlsx = file.type === 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'// 是否是 xls 文件(2010)const isXls = file.type === 'application/vnd.ms-excel'const isLt2M = file.size / 1024 / 1024 < 2; if (!isXlsx && !isXls) {this.$message.error('上传文件不是excel文件!');}if (!isLt2M) {this.$message.error('上传文件大小不能超过 2MB!');}return (isXlsx || isXls) && isLt2M;},handleRemove(file, fileList) { // 文件列表移除文件console.log(file, fileList);},handleSuccess(response, file, fileList) { // 文件上传成功// 成功提示this.$message.success(response.message)// 刷新this.findAllSubject()}},mounted() {this.findAllSubject()}, } </script> <style> </style>
2.3.4 后端
1) 完善JavaBean
package com.czxy.zx.domain; import com.baomidou.mybatisplus.annotation.*; import com.fasterxml.jackson.annotation.JsonFormat; import lombok.Data; import org.springframework.format.annotation.DateTimeFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; /*** 课程科目(EduSubject)表实体类** @author 桐叔*/ @Data @TableName("edu_subject") public class EduSubject{@TableId(type = IdType.ASSIGN_UUID)//课程科目IDprivate String id;//科目名称private String title;//父IDprivate String parentId;//排序字段private Integer sort;//创建时间@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")@TableField(fill = FieldFill.INSERT)private Date gmtCreate;//更新时间@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")@TableField(fill = FieldFill.INSERT)private Date gmtModified; @TableField(exist = false)private List<EduSubject> children = new ArrayList<>(); }
2)填充数据处理类
package com.czxy.zx.course.handler; import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler; import org.apache.ibatis.reflection.MetaObject; import org.springframework.stereotype.Component; import java.util.Date; /*** @author 桐叔* @email liangtong@itcast.cn*/ @Component public class SubjectMetaObjectHandler implements MetaObjectHandler {@Overridepublic void insertFill(MetaObject metaObject) {// 创建时间this.setFieldValByName("gmtCreate",new Date(), metaObject);// 修改时间this.setFieldValByName("gmtModified",new Date() , metaObject);} @Overridepublic void updateFill(MetaObject metaObject) {// 修改时,填充的内容this.setFieldValByName("gmtModified",new Date() , metaObject);} }
3)service:通过title查询
接口
package com.czxy.zx.course.service; import com.baomidou.mybatisplus.extension.service.IService; import com.czxy.zx.domain.EduSubject; /*** @author 桐叔* @email liangtong@itcast.cn*/ public interface EduSubjectService extends IService<EduSubject> {/*** 通过title查询* @param title* @return*/EduSubject findByTitle(String title); }
实现类
package com.czxy.zx.course.service.impl; import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl; import com.czxy.zx.course.mapper.EduSubjectMapper; import com.czxy.zx.course.service.EduSubjectService; import com.czxy.zx.domain.EduSubject; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; /*** @author 桐叔* @email liangtong@itcast.cn*/ @Service @Transactional public class EduSubjectServiceImpl extends ServiceImpl<EduSubjectMapper, EduSubject> implements EduSubjectService {@Overridepublic EduSubject findByTitle(String title) {QueryWrapper queryWrapper = new QueryWrapper();queryWrapper.eq("title", title); EduSubject eduSubject = baseMapper.selectOne(queryWrapper);return eduSubject;} }
4)controller:上传
/*** 文件上传* @param file* @return*/@PostMapping("/upload")public BaseResult upload(MultipartFile file) {try {// 解析excelEasyExcel.read(file.getInputStream(), UploadSubjectVo.class, eduSubjectListener).sheet(0).doRead(); return BaseResult.ok("上传成功");} catch (IOException e) {return BaseResult.error("上传失败");}}
5)excel内容封装类
package com.czxy.zx.course.upload; import com.alibaba.excel.annotation.ExcelProperty; import lombok.Data; /*** @author 桐叔* @email liangtong@itcast.cn*/ @Data public class UploadSubjectVo { @ExcelProperty("一级分类")private String oneLevel; @ExcelProperty("二级分类")private String twoLevel; }
6)上传内容处理类
package com.czxy.zx.course.upload; import com.alibaba.excel.context.AnalysisContext; import com.alibaba.excel.event.AnalysisEventListener; import com.czxy.zx.course.service.EduSubjectService; import com.czxy.zx.domain.EduSubject; import org.springframework.stereotype.Component; import javax.annotation.Resource; /*** @author 桐叔* @email liangtong@itcast.cn*/ @Component public class EduSubjectListener extends AnalysisEventListener<UploadSubjectVo> { @Resourceprivate EduSubjectService eduSubjectService; @Overridepublic void invoke(UploadSubjectVo uploadSubjectVo, AnalysisContext analysisContext) {// 1. 处理一级// 1.1 查询一级EduSubject oneSubject = eduSubjectService.findByTitle(uploadSubjectVo.getOneLevel());// 1.2 保存一级if(oneSubject == null) {oneSubject = new EduSubject();oneSubject.setTitle(uploadSubjectVo.getOneLevel());oneSubject.setSort(0);oneSubject.setParentId("0"); // 一级默认0eduSubjectService.save(oneSubject);} // 2. 处理二级// 2.1 查询二级EduSubject twoSubject = eduSubjectService.findByTitle(uploadSubjectVo.getTwoLevel());// 2.2 保存二级if(twoSubject == null) {twoSubject = new EduSubject();twoSubject.setTitle(uploadSubjectVo.getTwoLevel());twoSubject.setSort(0);twoSubject.setParentId(oneSubject.getId()); //二级的父ID为一级的IDeduSubjectService.save(twoSubject);} } @Overridepublic void doAfterAllAnalysed(AnalysisContext analysisContext) { } }
【在线教育】课程科目入门相关推荐
- Python django-restframework 前后端分离实现在线教育课程平台
django-restframework 框架 Django REST framework 是一个强大而灵活的 Web API 工具.使用它可以更好的与前端交互,完成API接口的设计与数据返回.同时它 ...
- 知识付费:在线教育课程如何做推广
知识付费行业已经发展了好几个年头,在线教育行业在疫情期间也是达到白热化竞争阶段,但是好多负责销售课程的运营er都说转化很难做,比如兢兢业业运营个社群吧,平时发点小福利群成员都很积极,但只要一发付费课程 ...
- 尚硅谷在线教育六:尚硅谷在线教育课程分类管理开发
文章目录 1.EasyExcel 1.1Excel导入导出的应用场景 1.2 EasyExcel简介 1.2创建一个项目,实现EasyExcel对Excel的写操作 1.2.1创建一个普通的maven ...
- 周锦民:腾讯在线教育视频互动直播间技术实践
本文来自腾讯云技术沙龙,本次沙龙主题为在线教育个性化教学技术实践 演讲嘉宾:周锦民 | 2011年毕业进入腾讯, 现任在线教育部在线教育后台中心高级工程师,多年linux后台开发工作经验,目前主要负责 ...
- 在线教育音视频质量评价与感知系统
为了探讨用一套客观,完备的评价系统对在线教育的音视频通信质量做出评价,力求做到定量,准确,横向可对比,并基于线上运行的大数据系统,发掘端到端通信平台存在的问题,找到优化方向,提升在线教育的用户体验,V ...
- 掌门教育们的在线教育直播授课老师,“被一张布困住了”
文 |Shellie 来源 | 智能相对论(ID:aixdlun) "说是工作自由,其实一直到现在,我都被这张背景布困住了,就像被封印在了这张布前面." 从今年2月开始到现在,一直 ...
- 百度传课网易云课堂在线教育平台竞品分析【转】
最近正在用网易云课堂学习数据库,闲来搜到这篇网易云课堂和百度传课的竞品分析,写的不错. 个人还是网易云课堂用的比较多,网易云课堂总体给人感觉讲师更专业靠谱,并且注重知识体系的培养,比如课程体系和微专业 ...
- 疫情下的在线教育行业未来发展
中国在线教育行业2013年在资本推动下开始蓬勃发展,并于2017年借助直播形式实现规模化,在2020年,受疫情影响开始快速增长,并逐步走向成熟.在线教育模式可以突破时间和地域的限制,借助互联网工具,将 ...
- 在线教育行业未来的发展趋势
近些年来,随着知识经济的快速发展,教育市场呈现出良好的增长趋势.不仅学生接受教育,很多成人和家长由于受新的职业生活挑战与职业岗位竞争压力的影响,也开始通过参加各种培训来提升自己.近几年来,中国教育市场 ...
最新文章
- macOS10.12部署sonarqube5.6.3
- Python Django 请求重定向的三种方式
- Linux标准目录配置(转自鸟哥)
- python内置函数 pdf_关于Python巧妙而强大的内置函数
- 【Java】利用循环嵌套实现输出一天的小时和分钟
- Windows10和Ubuntu双系统下用windows引导Ubuntu
- insert时出现主键冲突的处理方法【转载】
- 荣耀20系列国行版正式发布 拍照全球第三 屏幕开孔全球最小
- tcpdump工具编译记录
- GCD API记录(二)
- LayaAir 事件处理器 Handler
- mmdetection 绘制PR曲线
- Mysql(多级分销)无限极数据库表设计方法
- 30岁张一鸣创业成功秘密武器,OKR“失控”管理法
- 如何读书:实用性阅读指南
- 卡尔曼滤波算法的代码验证
- [APIO2018] New Home 新家
- 图解VirtualBox安装CentOS 7
- 膜片钳电生理检测ACSF和电极内液配制
- 「每日一问」面向对象的基本原则是什么?
热门文章
- 单片机c语言ds1302,STC单片机控制DS1302 (1TMCU C程序)
- PTA基础编程题目集7-27 冒泡法排序
- peazip 64 linux,Ubuntu 16.04中下载安装PeaZip 6.5.0档案管理器
- revit链接文件操作
- 河北省中小学计算机课时,河北省义务教育课程设置及课时安排表
- Java 源码学习(String)
- SpringMVC-应用(数据绑定-自定义类型转换器,数据的格式化,数据校验)
- echarts 平滑曲线图详解
- 网络安全高级人才应该具备的安全能力
- 迅速找出成对数组中的一组不同------工地里吃萝卜的天马座