富文本编辑器Tinymce
一、Tinymce可视化编辑器
参考
https://panjiachen.gitee.io/vue-element-admin/#/components/tinymce
https://panjiachen.gitee.io/vue-element-admin/#/example/create
二、组件初始化
Tinymce是一个传统javascript插件,默认不能用于Vue.js因此需要做一些特殊的整合步骤。
1. 复制脚本库
将脚本库复制到项目的static目录下(在vue-element-admin-master的static路径下)。
2. 配置html变量
在 build/webpack.dev.conf.js
中添加配置
使在html页面中可是使用这里定义的BASE_URL变量
new HtmlWebpackPlugin({
......,
templateParameters: {
BASE_URL: config.dev.assetsPublicPath + config.dev.assetsSubDirectory
}
})
3. 引入js脚本
在 /index.html
中引入js脚本
<script src=<%= BASE_URL %>/tinymce4.7.5/tinymce.min.js></script>
<script src=<%= BASE_URL %>/tinymce4.7.5/langs/zh_CN.js></script>
三、组件引入
为了让Tinymce能用于Vue.js项目,vue-element-admin-master对Tinymce进行了封装,下面我们将它引入到我们的课程信息页面。
1. 复制组件
src/components/Tinymce
2. 引入组件
课程信息组件中引入 Tinymce
//引入Tinymce富文本编辑器组件
import Tinymce from '@/components/Tinymce';
export default {
....
components: { Tinymce },
}
3. 组件模板
<!-- 课程简介-->
<el-form-item label="课程简介">
<tinymce :height="300" v-model="courseInfo.description"/>
</el-form-item>
4. 组件样式
在 info.vue
文件的最后添加如下代码,调整上传图片按钮的高度。
<style scoped>
.tinymce-container {
line-height: 29px;
}
</style>
5. 效果测试
四、测试
-
图片的base64编码
Tinymce中的图片上传功能直接存储的是图片的base64编码,因此无需图片服务器
-
后台报错
-
修改数据库description字段类型
-
添加的数据中发现一级分类没有值
在eduservice.entity.vo.CourseInfo
中添加一级分类属性。
要求跟前端一级分类属性的名称一样,否则获取不到数据。@ApiModelProperty(value = "一级分类ID")
private String subjectParentId; -
重启服务,再次进行测试,添加的课程就有对应的一级分类对应的id值
课程大纲列表显示
一、后端实现
1. 实体类
创建 chapter
包,在此包下创建 ChapterVo
和 VideoVo
实体类。
chapterVo
:
@Data
public class ChapterVo {
private static final long serialVersionUID = 1L;
private String id;
private String title;
//表示小节
private List<VideoVo> children = new ArrayList<VideoVo>();
}
VideoVo
:
@Data
public class VideoVo {
private static final long serialVersionUID = 1L;
private String id;
private String title;
private Boolean free;
}
2. controller
创建 EduChapterController
类:
@RestController
@CrossOrigin
@RequestMapping("/eduservice/chapter")
public class EduChapterController {
@Autowired
private EduChapterService eduChapterService;
// 课程大纲列表,根据课程id进行查询
@GetMapping("getChapterVideo/{courseId}")
public R getChapterVideo(@PathVariable String courseId) {
List<ChapterVo> list = eduChapterService.getChapterVideoByCourseId(courseId);
return R.ok().data("allChapterVideo", list);
}
}
3. service
EduChapterService
接口:
public interface EduChapterService extends IService<EduChapter> {
// 课程大纲列表,根据课程id进行查询
List<ChapterVo> getChapterVideoByCourseId(String courseId);
}
EduChapterServiceImpl
实现类:
@Service
public class EduChapterServiceImpl extends ServiceImpl<EduChapterMapper, EduChapter> implements EduChapterService {
@Autowired
private EduVideoService videoService;
// 课程大纲列表,根据课程id进行查询
@Override
public List<ChapterVo> getChapterVideoByCourseId(String courseId) {
// 1. 根据课程id查询课程里面所有的章节
QueryWrapper<EduChapter> wrapperChapter = new QueryWrapper<>();
wrapperChapter.eq("course_id", courseId);
List<EduChapter> eduChapterList = baseMapper.selectList(wrapperChapter);
// 2. 根据课程id查询课程里面所有的小节
QueryWrapper<EduVideo> wrapperVideo = new QueryWrapper<>();
wrapperVideo.eq("course_id", courseId);
List<EduVideo> eduVideoList = videoService.list(wrapperVideo);
// 创建list集合,用于最终封装数据
List<ChapterVo> finalList = new ArrayList<>();
// 3. 遍历查询章节list集合进行封装
//遍历查询章节list集合
for (int i = 0; i < eduChapterList.size(); i ++) {
// 每个章节
EduChapter eduChapter = eduChapterList.get(i);
// eduChapter 对象值复制到ChapterVo里面
ChapterVo chapterVo = new ChapterVo();
BeanUtils.copyProperties(eduChapter, chapterVo);
// 把chapterVo放到最终list集合
finalList.add(chapterVo);
// 创建集合,用于封装章节的小节
List<VideoVo> videoList = new ArrayList<>();
// 4. 遍历查询小节list集合,进行封装
for (int j = 0; j < eduVideoList.size(); j++) {
// 得到每个小节
EduVideo eduVideo = eduVideoList.get(j);
// 判断:小节里面chapterId和章节里面id是否一样
if (eduVideo.getChapterId().equals(eduChapter.getId())) {
// 进行封装
VideoVo videoVo = new VideoVo();
BeanUtils.copyProperties(eduVideo, videoVo);
// 放到小节封装集合
videoList.add(videoVo);
}
}
// 把封装之后小节list集合,放到章节对象里面
chapterVo.setChildren(videoList);
}
return finalList;
}
}
4. Swagger测试
测试结果如下:
// Response Body
{
"success": true,
"code": 20000,
"message": "成功",
"data": {
"allChapterVideo": [
{
"id": "1",
"title": "第一章:HTML",
"children": [
{
"id": "17",
"title": "第一节:Java简介",
"free": null
},
{
"id": "19",
"title": "第三节:String类",
"free": null
}
]
},
{
"id": "2",
"title": "第二章:CSS",
"children": [
{
"id": "18",
"title": "第二节:表达式和赋值语句",
"free": null
},
{
"id": "20",
"title": "第四节:程序风格",
"free": null
}
]
},
{
"id": "32",
"title": "第二章:控制台输入和输出",
"children": [
{
"id": "1182499307429339137",
"title": "第一节",
"free": null
}
]
},
{
"id": "44",
"title": "第三章:控制流",
"children": []
}
]
}
}
二、前端实现
1. 定义api
api/edu/chapter.js
import request from '@/utils/request' //引入已经封装好的axios 和 拦截器
export default{
//根据课程id获取章节和小节数据列表
getAllChapterVideo(courseId){
return request({
url:`/eduservice/chapter/getChapterVideo/${courseId}`,
method: 'get',
})
},
}
2. 定义组件脚本
-
引入api脚本方法
import chapter from '@/api/edu/chapter'
-
定义data
data() {
return {
.........
chapterVideoList:[]
};
}, -
定义相关methods获取章节和课时列表
methods: {
// 根据课程id查询对应的课程章节和小节
getChapterVideo() {
chapter.getAllChapterVideo(this.courseId)
.then(response => {
this.chapterVideoList = response.data.allChapterVideo
})
}, -
定义created方法
created() {
// 获取路由的id值
if(this.$route.params && this.$route.params.id) {
this.courseId = this.$route.params.id
}
// 根据课程id查询对应的课程章节和小节
this.getChapterVideo()
},
3. 定义组件模板
<template>
<div class="app-container">
<h2 style="text-align: center">发布新课程</h2>
<el-steps :active="2" process-status="wait" align-center style="margin-bottom: 40px;">
<el-step title="填写课程基本信息" />
<el-step title="创建课程大纲" />
<el-step title="最终发布" />
</el-steps>
<!-- 章节 -->
<ul class="chanpterList">
<li v-for="chapter in chapterVideoList" :key="chapter.id">
<p>
{{ chapter.title }}
</p>
<!-- 小节 -->
<ul class="chanpterList videoList">
<li v-for="video in chapter.children" :key="video.id">
<p>
{{ video.title }}
</p>
</li>
</ul>
</li>
</ul>
<el-form label-width="120px">
<el-form-item>
<el-button @click="previous">上一步</el-button>
<el-button :disabled="saveBtnDisabled" type="primary" @click="next"
>下一步</el-button
>
</el-form-item>
</el-form>
</div>
</template>
4. 定义样式
将样式的定义放在页面的最后。
scope
表示这里定义的样式只在当前页面范围内生效,不会污染到其他的页面。
<style scoped>
.chanpterList{
position: relative;
list-style: none;
margin: 0;
padding: 0;
}
.chanpterList li{
position: relative;
}
.chanpterList p{
float: left;
font-size: 20px;
margin: 10px 0;
padding: 10px;
height: 70px;
line-height: 50px;
width: 100%;
border: 1px solid #DDD;
}
.chanpterList .acts {
float: right;
font-size: 14px;
}
.videoList{
padding-left: 50px;
}
.videoList p{
float: left;
font-size: 14px;
margin: 10px 0;
padding: 10px;
height: 50px;
line-height: 30px;
width: 100%;
border: 1px dotted #DDD;
}
</style>
5. 测试
修改课程信息
一、后端实现
1. 根据课程id查询课程基本信息
-
EduCourseController
// 根据课程id查询课程基本信息
@GetMapping("getCourseInfo/{courseId}")
public R getCourseInfo(@PathVariable String courseId) {
CourseInfoVo courseInfoVo = courseService.getCourseInfo(courseId);
return R.ok().data("courseInfoVo", courseInfoVo);
} -
EduCourseService
// 根据课程id查询课程基本信息
CourseInfoVo getCourseInfo(String courseId); -
EduCourseServiceImpl
// 根据课程id查询课程基本信息
@Override
public CourseInfoVo getCourseInfo(String courseId) {
// 查询课程表
EduCourse eduCourse = baseMapper.selectById(courseId);
CourseInfoVo courseInfoVo = new CourseInfoVo();
BeanUtils.copyProperties(eduCourse, courseInfoVo);
// 查询描述表
EduCourseDescription courseDescription = courseDescriptionService.getById(courseId);
courseInfoVo.setDescription(courseDescription.getDescription());
return courseInfoVo;
}
2. 修改课程信息
-
EduCourseController
// 修改课程信息
@PostMapping("updateCourseInfo")
public R updateCourseInfo(@RequestBody CourseInfoVo courseInfoVo) {
courseService.updateCourseInfo(courseInfoVo);
return R.ok();
} -
EduCourseService
// 修改课程信息
void updateCourseInfo(CourseInfoVo courseInfoVo); -
EduCourseServiceImpl
// 修改课程信息
@Override
public void updateCourseInfo(CourseInfoVo courseInfoVo) {
// 1.修改课程表
EduCourse eduCourse = new EduCourse();
BeanUtils.copyProperties(courseInfoVo, eduCourse);
int update = baseMapper.updateById(eduCourse);
if (update == 0) {
throw new GuliException(20001, "修改课程信息失败");
}
// 2.修改描述表
EduCourseDescription description = new EduCourseDescription();
description.setId(courseInfoVo.getId());
description.setDescription(courseInfoVo.getDescription());
courseDescriptionService.updateById(description);
}
二、前端实现
-
定义api
src\api\edu\course.js
//根据课程id 查询课程基本信息
getCourseInfoId(id){
return request({
url:`/eduservice/course/getCourseInfo/${id}`,
method: 'get',
})
},
//修改课程信息
updateCourseInfo(courseInfo){
return request({
url:"/eduservice/course/updateCourseInfo",
method: 'post',
data: courseInfo
})
} -
修改chapter页面跳转路径
//跳转到上一步
previous() {
this.$router.push({ path: "/course/info/"+this.courseId});
},
next() {
//跳转到第三步
this.$router.push({ path: "/course/publish/"+this.courseId});
}, -
info页面 data
data() {
return {
...
courseId: "",
};
} -
info页面 methods
methods: {
// 根据课程id查询
getInfo() {
course.getCourseInfoId(this.courseId)
.then(response => {
this.courseInfo = response.data.courseInfoVo
})
},
.....
} -
info页面 created()
created(){
// 获取路由id值
if (this.$route.params && this.$route.params.id) {
this.courseId = this.$route.params.id
// 调用根据id查询课程的方法
this.getInfo()
}
....
}, -
测试
-
上面测试,二级分类中的数据显示出现了问题
created(){
// 获取路由id值
if (this.$route.params && this.$route.params.id) {
this.courseId = this.$route.params.id
// 调用根据id查询课程的方法
this.getInfo()
} else {
// 初始化所有讲师
this.getListTeacher()
// 初始化一级分类
this.getOneSubject()
}
},getInfo() {
course.getCourseInfoId(this.courseId)
.then(response => {
// 在courseInfo课程信息基本信息,包含一级分类id 和 二级分类id
this.courseInfo = response.data.courseInfoVo
// 1. 查询所有的分类,包含一级和二级
subject.getSubjectList()
.then(response => {
// 2.获取所有一级分类
this.subjectOneList = response.data.list
//3. 把所有的一级分类数组进行遍历
for (var i=0;i<this.subjectOneList.length;i++) {
//获取每一个一级分类
var oneSubject = this.subjectOneList[i]
// 比较当前courseInfo里面一级分类id和所有一级 分类id
if(this.courseInfo.subjectParentId == oneSubject.id) {
//获取一级分类所有的二级分类
this.subjectTwoList=oneSubject.children
}
}
})
//初始化所有讲师
this.getListTeacher()
})
},
-
还有一个问题,就是回显数据后,再点击添加课程,数据还在,应该是清空数据
添加监听器,监听路由,如果路由变化,就将courseInfo的数据清空:watch: {
$route(to, from) {
//路由变化方式,当路由发送变化,方法就执行
console.log("watch $route");
this.courseInfo={}
},
} -
实现修改功能
src\views\edu\course\info.vue
//添加课程
//添加课程
addCourse() {
course.addCourseInfo(this.courseInfo).then(response => {
this.$message({
message: "添加课程信息成功",
type: "success",
});
//跳转到第二步,并带着这个课程生成的id
this.$router.push({ path: "/course/chapter/" + resp.data.courseId });
});
},
//修改课程
updateCourse() {
course.updateCourseInfo(this.courseInfo).then(response => {
this.$message({
message: "修改课程信息成功",
type: "success",
});
//跳转到第二步,并带着这个课程生成的id
this.$router.push({ path: "/course/chapter/" + this.courseId });
});
},
//判断是修改还是新增
saveOrUpdate() {
//判断courseInfo中是否有id值
if (this.courseInfo.id) {
//有id值,为修改
this.updateCourse();
} else {
//没id值,为添加
this.addCourse();
}
}
课程章节添加、修改、删除功能
一、后端实现
-
EduChapterController
:// 添加章节
@PostMapping("addChapter")
public R addChapter(@RequestBody EduChapter eduChapter) {
eduChapterService.save(eduChapter);
return R.ok();
}
// 根据章节id查询
@GetMapping("getChapterInfo/{chapterId")
public R getChapterInfo(@PathVariable String chapterId) {
EduChapter eduChapter = eduChapterService.getById(chapterId);
return R.ok().data("chapter", eduChapter);
}
// 修改章节
@PostMapping("updateChapter")
public R updateChapter(@RequestBody EduChapter eduChapter) {
eduChapterService.updateById(eduChapter);
return R.ok();
}
// 删除的方法
@DeleteMapping("{chapterId}")
public R deleteChapter(@RequestBody String chapterId) {
boolean flag = eduChapterService.deleteChapter(chapterId);
if (flag) {
return R.ok();
} else {
return R.error();
}
} -
EduChapterService
:// 删除的方法
boolean deleteChapter(String chapterId); -
EduChapterServiceImpl
:// 删除的方法
@Override
public boolean deleteChapter(String chapterId) {
// 根据chapterId章节id 查询小节表,如果查询到数据则不进行删除
QueryWrapper<EduVideo> wrapper = new QueryWrapper<>();
wrapper.eq("chapter_id", chapterId);
int count = videoService.count(wrapper);
// 判断
if (count > 0) { // 查询出小节,不进行删除
throw new GuliException(20001, "不能删除");
} else { // 不能查询数据,进行删除
// 删除章节
int result = baseMapper.deleteById(chapterId);
return result > 0;
}
}
二、前端实现
1. 课程添加功能
-
定义api
//添加章节
addChapter(chapter) {
return request({
url: `/eduservice/chapter/addChapter`,
method: `post`,
data: chapter
})
},
//根据id查询章节
getChapter(chapterID) {
return request({
url: `/eduservice/chapter/getChapterInfo/${chapterID}`,
method: `get`,
})
},
//修改章节
updateChapter(chapter) {
return request({
url: `/eduservice/chapter/updateChapter`,
method: `post`,
data: chapter
})
},
//删除章节
deleteChapter(chapterID) {
return request({
url: `/eduservice/chapter/${chapterID}`,
method: `delete`,
})
} -
引入api
import chapter from '@/api/edu/chapter'
-
methods方法
methods: {
//添加章节
saveChapter() {
//设置课程id到chapter对象中
this.chapter.courseId = this.courseId
chapter.addChapter(this.chapter).then((resp) => {
//关闭弹框
this.dialogChapterFormVisible = false;
//提示信息
this.$message({
message: "添加章节成功",
type: "success",
});
//刷新页面
this.getChapterVideoByCourseId()
});
},
saveOrUpdate() {
this.saveChapter()
}
} -
测试
-
设置弹出表单时,清空数据
<el-button type="text" @click="openChapterDialog()">添加章节</el-button>
openChapterDialog(){
// 弹框
this.dialogChapterFormVisible = true
// 表单数据清空
this.chapter.title = ''
this.chapter.sort = 0
},
2. 修改课程功能
-
template
<p> {{ chapter.title }} <span class="acts"> <el-button style="" type="text" @click="openEditChapter(chapter.id)">编辑</el-button> <el-button type="text">删除</el-button> </span> </p>
-
methods方法
// 修改章节弹框数据回显
openEditChapter(chapterId) {
// 弹框
this.dialogChapterFormVisible = true
// 调用接口
chapter.getChapter(chapterId)
.then(response => {
this.chapter = response.data.chapter
})
},// 添加章节
addChapter() {
// 设置课程id到chapter对象里面
this.chapter.courseId = this.courseId
chapter.addChapter(this.chapter)
.then(response => {
// 关闭弹框
this.dialogChapterFormVisible = false
// 提示
this.$message({
message: "添加章节成功",
type: "success",
});
// 刷新页面
this.getChapterVideo()
})
},
// 修改章节的方法
updateChapter() {
chapter.updateChapter(this.chapter)
.then(response => {
// 关闭弹框
this.dialogChapterFormVisible = false
// 提示
this.$message({
message: "修改章节成功",
type: "success",
});
// 刷新页面
this.getChapterVideo()
})
},
saveOrUpdate() {
if(!this.chapter.id) {
this.addChapter()
} else {
this.updateChapter()
}
},
3. 删除课程功能
<el-button type="text" @click="removeChapter(chapter.id)">删除</el-button>
// 删除章节
removeChapter(chapterId) {
this.$confirm('此操作将永久删除课程记录, 是否继续?', '提示', {
confirmButtonText: '确定',
cancelButtonText: '取消',
type: 'warning'
}).then(() => { //点击确定,执行then方法
//调用删除的方法
chapter.deleteChapter(chapterId)
.then(response =>{//删除成功
//提示信息
this.$message({
type: 'success',
message: '删除成功!'
});
// 刷新页面
this.getChapterVideo()
})
}) //点击取消,执行catch方法
},
课程章节小节功能
一、后端实现
-
EduVideoController
:@RestController
@CrossOrigin
@RequestMapping("/eduservice/video")
public class EduVideoController {
@Autowired
private EduVideoService videoService;
// 添加小节
@PostMapping("addVideo")
public R addVideo(@RequestBody EduVideo eduVideo) {
videoService.save(eduVideo);
return R.ok();
}
// 删除小节
@DeleteMapping("{id}")
public R deleteVideo(@PathVariable String id) {
videoService.removeById(id);
return R.ok();
}
// 根据小节id查询
@PostMapping("getVideoById/{videoId}")
public R getVideoById(@PathVariable String videoId) {
EduVideo eduVideo = videoService.getById(videoId);
return R.ok().data("video", eduVideo);
}
// 修改小节
@PostMapping("/updateVideo")
public R updateVideo(@PathVariable EduVideo eduVideo) {
videoService.updateById(eduVideo);
return R.ok();
}
} -
EduVideo
:@ApiModelProperty(value = "创建时间")
@TableField(fill = FieldFill.INSERT)
private Date gmtCreate;
@ApiModelProperty(value = "更新时间")
@TableField(fill = FieldFill.INSERT_UPDATE)
private Date gmtModified;
二、前端实现
1. 添加小节功能
-
template
<el-button style="" type="text" @click="openVideo(chapter.id)">添加小节</el-button>
<!-- 添加和修改课时表单 -->
<el-dialog :visible.sync="dialogVideoFormVisible" title="添加课时">
<el-form :model="video" label-width="120px">
<el-form-item label="课时标题">
<el-input v-model="video.title"/>
</el-form-item>
<el-form-item label="课时排序">
<el-input-number v-model="video.sort" :min="0" controls-position="right"/>
</el-form-item>
<el-form-item label="是否免费">
<el-radio-group v-model="video.free">
<el-radio :label="true">免费</el-radio>
<el-radio :label="false">默认</el-radio>
</el-radio-group>
</el-form-item>
<el-form-item label="上传视频">
<!-- TODO -->
</el-form-item>
</el-form>
<div slot="footer" class="dialog-footer">
<el-button @click="dialogVideoFormVisible = false">取 消</el-button>
<el-button :disabled="saveVideoBtnDisabled" type="primary" @click="saveOrUpdateVideo">确 定</el-button>
</div>
</el-dialog> -
定义api
src\api\edu\video.js
import request from '@/utils/request' //引入已经封装好的axios 和 拦截器
export default{
//添加小节
addVideo(video) {
return request({
url: `/eduservice/video/addVideo`,
method: `post`,
data: video
})
},
//根据id查询小节
getVideoById(videoId) {
return request({
url: `/eduservice/video/getVideoById/${videoId}`,
method: `get`,
})
},
//修改小节
updateVideo(video) {
return request({
url: `/eduservice/video/updateVideo`,
method: `post`,
data: video
})
},
//删除小节
deleteChapter(id) {
return request({
url: `/eduservice/video/${id}`,
method: `delete`,
})
}
} -
引入js
import video from '@/api/edu/video'
-
methods方法
openVideo(chapterId) {
// 弹框
this.dialogVideoFormVisible = true
// 清空数据
this.video={},
// 设置章节id
this.video.chapterId = chapterId
},// 添加小节
addVideo() {
// 设置课程id
this.video.courseId = this.courseId
video.addVideo(this.video)
.then(response => {
// 关闭弹框
this.dialogVideoFormVisible = false
// 提示
this.$message({
message: "添加小节成功",
type: "success",
});
// 刷新页面
this.getChapterVideo()
})
},
saveOrUpdateVideo() {
this.addVideo()
}, -
测试
2. 删除小节功能
-
template
<span class="acts">
<el-button style="" type="text" >编辑</el-button>
<el-button type="text" @click="removeVideo(video.id)">删除</el-button>
</span> -
methods方法
// 删除小节
removeVideo(id) {
this.$confirm('此操作将永久删除小节记录, 是否继续?', '提示', {
confirmButtonText: '确定',
cancelButtonText: '取消',
type: 'warning'
}).then(() => { //点击确定,执行then方法
//调用删除的方法
video.deleteChapter(id)
.then(response =>{//删除成功
//提示信息
this.$message({
type: 'success',
message: '删除成功!'
});
// 刷新页面
this.getChapterVideo()
})
}) //点击取消,执行catch方法
}, -
测试
3. 修改小节功能
-
template
<p> {{ video.title }} <span class="acts"> <el-button style="" type="text" @click="openEditVideo(video.id)">编辑</el-button> <el-button type="text" @click="removeVideo(video.id)">删除</el-button> </span> </p>
-
methods方法
//修改小节表单回显
openEditVideo(videoId) {
// 弹框
this.dialogVideoFormVisible = true
// 调用接口
video.getVideoById(videoId)
.then(response => {
this.video = response.data.video
})
},// 添加小节
addVideo() {
// 设置课程id
this.video.courseId = this.courseId
video.addVideo(this.video)
.then(response => {
// 关闭弹框
this.dialogVideoFormVisible = false
// 提示
this.$message({
message: "添加小节成功",
type: "success",
});
// 刷新页面
this.getChapterVideo()
})
},
// 修改小节
updateVideoById(videoId) {
video.updateVideo(this.video)
.then(response => {
// 关闭弹框
this.dialogVideoFormVisible = false
// 提示
this.$message({
message: "修改小节成功",
type: "success",
});
// 刷新页面
this.getChapterVideo()
})
},
saveOrUpdateVideo() {
if(!this.video.id) {
this.addVideo()
} else {
this.updateVideoById()
}
},
- 测试
课程最终发布
一、后端实现
-
CoursePublishVo
@ApiModel(value = "课程发布信息")
@Data
public class CoursePublishVo implements Serializable {
private static final long serialVersionUID = 1L;
private String id; //课程id
private String title; //课程名称
private String cover; //封面
private Integer lessonNum;//课时数
private String subjectLevelOne; //一级分类
private String subjectLevelTwo; //二级分类
private String teacherName; //讲师名称
private String price; //价格 ,只用于显示
} -
EduCourseController
// 根据课程id查询课程确认信息
@GetMapping("getPublishCourseInfo/{id}")
public R getPublishCourseInfo(@PathVariable String id) {
CoursePublishVo coursePublishVo = courseService.publishCourseInfo(id);
return R.ok().data("publishCourse", coursePublishVo);
} -
EduCourseMapper
public interface EduCourseMapper extends BaseMapper<EduCourse> {
public CoursePublishVo getPublishCourseInfo(String courseId);
} -
EduCourseMapper.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.atguigu.eduservice.mapper.EduCourseMapper">
<!--sql语句:根据课程id查询课程确认信息-->
<select id="getPublishCourseInfo" resultType="com.atguigu.eduservice.entity.vo.CoursePublishVo">
SELECT
c.title,
c.cover,
c.lesson_num AS lessonNum,
CONVERT(c.price, DECIMAL(8,2)) AS price,
s1.title AS subjectLevelOne,
s2.title AS subjectLevelTwo,
t.name AS teacherName
FROM
edu_course c
LEFT JOIN edu_teacher t ON c.teacher_id = t.id
LEFT JOIN edu_subject s1 ON c.subject_parent_id = s1.id
LEFT JOIN edu_subject s2 ON c.subject_id = s2.id
WHERE
c.id = #{id}
</select>
</mapper> -
EduCourseService
// 根据课程id查询课程确认信息
CoursePublishVo publishCourseInfo(String id); -
EduCourseServiceImpl
// 根据课程id查询课程确认信息
@Override
public CoursePublishVo publishCourseInfo(String id) {
// 调用mapper
return baseMapper.getPublishCourseInfo(id);
} -
Swagger测试
-
报错
-
报错原因以及解决方案
原因: 这个错误是maven
默认加载机制造成问题,maven
加载的时候,把java
文件夹里面.java
类型文件进行编译,如果其他类型文件,不会加载。解决方法:
- 1.复制
xml
到target
目录中 - 2.把
xml
文件放到resourses
目录中 - 3.推荐使用:使用配置实现
(1)pom.xml
(2)项目application.properties
- 1.复制
-
在
service
模块下的pom.xml
加入配置<!-- 项目打包时会将java目录中的*.xml文件也进行打包 -->
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build> -
application.properties
下指定xml
文件夹#配置mapper xml文件的路径
mybatis-plus.mapper-locations=classpath:com/atguigu/eduservice/mapper/xml/*.xml -
再次进行测试
二、前端实现
-
定义api
// 课程确认信息
getPublishCourseInfo(id){
return request({
url:"/eduservice/course/getPublishCourseInfo/"+id,
method: 'get',
})
} -
导入api方法
import course from "@/api/edu/course"
-
定义方法
export default {
data() {
return {
saveBtnDisabled: false, // 保存按钮是否禁用
courseId: '',
coursePublish: {}
};
},
created() {
//获取路由中的id值
if(this.$route.params && this.$route.params.id){
this.courseId = this.$route.params.id
//调用接口方法根据课程id查询课程信息
this.getCoursePublishId()
}
},
methods: {
// 根据课程id查询
getCoursePublishId() {
course.getPublishCourseInfo(this.courseId)
.then(response => {
this.coursePublish = response.data.publishCourse
})
},
......
},
}; -
组件模板
<template> <div class="app-container"> <h2 style="text-align: center">发布新课程</h2> <el-steps :active="3" process-status="wait" align-center style="margin- bottom: 40px;" > <el-step title="填写课程基本信息" /> <el-step title="创建课程大纲" /> <el-step title="最终发布" /> </el-steps> <div class="ccInfo"> <img :src="coursePublish.cover" /> <div class="main"> <h2>{{ coursePublish.title }}</h2> <p class="gray"> <span>共{{ coursePublish.lessonNum }}课时</span> </p> <p> <span >所属分类:{{ coursePublish.subjectLevelOne }} — {{ coursePublish.subjectLevelTwo }}</span > </p> <p>课程讲师:{{ coursePublish.teacherName }}</p> <h3 class="red">¥{{ coursePublish.price }}</h3> </div> </div> <el-form label-width="120px"> <el-form-item> <el-button @click="previous">返回修改</el-button> <el-button :disabled="saveBtnDisabled" type="primary" @click="publish" >发布课程</el-button > </el-form-item> </el-form> </div> </template>
-
页面样式
<style scoped>
.ccInfo {
background: #f5f5f5;
padding: 20px;
overflow: hidden;
border: 1px dashed #ddd;
margin-bottom: 40px;
position: relative;
}
.ccInfo img {
background: #d6d6d6;
width: 500px;
height: 278px;
display: block;
float: left;
border: none;
}
.ccInfo .main {
margin-left: 520px;
}
.ccInfo .main h2 {
font-size: 28px;
margin-bottom: 30px;
line-height: 1;
font-weight: normal;
}
.ccInfo .main p {
margin-bottom: 10px;
word-wrap: break-word;
line-height: 24px;
max-height: 48px;
overflow: hidden;
}
.ccInfo .main p {
margin-bottom: 10px;
word-wrap: break-word;
line-height: 24px;
max-height: 48px;
overflow: hidden;
}
.ccInfo .main h3 {
left: 540px;
bottom: 20px;
line-height: 1;
font-size: 28px;
color: #d32f24;
font-weight: normal;
position: absolute;
}
</style> -
测试
课程最终发布
一、后端实现
EduCourseController
// 课程最终发布
// 修改课程状态
@PostMapping("publishCourse/{id}")
public R publishCourse(@PathVariable String id) {
EduCourse eduCourse = new EduCourse();
eduCourse.setId(id);
eduCourse.setStatus("Normal"); // 设置课程发布状态
boolean flag = courseService.updateById(eduCourse);
if (flag) {
return R.ok();
} else {
return R.error();
}
}
二、前端实现
-
定义api
//课程最终发布
publishCourse(id) {
return request({
url: "/eduservice/course/publishCourse/" + id,
method: 'post',
})
} -
定义方法
<el-button :disabled="saveBtnDisabled" type="primary" @click="publish">发布课程</el-button>
//发布课程
publish() {
this.$confirm("你确定要发布此课程, 是否继续?", "提示", {
confirmButtonText: "确定",
cancelButtonText: "取消",
type: "warning",
}).then(() => {
course.publishCourse(this.courseId).then(response => {
//提示信息
this.$message({
message: "课程发布成功",
type: "success",
});
//跳转课程列表页面
this.$router.push({ path: "/course/list" });
});
});
} -
测试
课程列表功能
1. 课程列表展示功能
-
EduCourseController
// 查询课程所有信息
@GetMapping
public R getCourseList() {
List<EduCourse> list = courseService.list(null);
return R.ok().data("list", list);
} -
定义api
//课程列表
getListCourse() {
return request({
url: "/eduservice/course/",
method: 'get',
})
}, -
template
<!-- 表格 --> <el-table :data="list" border fit highlight-current-row> <el-table-column label="序号" width="70" align="center"> <template slot-scope="scope"> {{ (page - 1) * limit + scope.$index + 1 }} </template> </el-table-column> <el-table-column prop="title" label="课程名称" width="200" /> <el-table-column label="课程状态" width="120"> <template slot-scope="scope"> {{ scope.row.status===Normal?'已发布':'未发布' }} </template> </el-table-column> <el-table-column prop="lessonNum" label="课时数" /> <el-table-column prop="gmtCreate" label="添加时间" width="260"/> <el-table-column prop="viewCount" label="浏览数量" width="100" /> <el-table-column label="操作" width="200" align="center"> <template slot-scope="scope"> <router-link :to="'/teacher/edit/'+scope.row.id"> <el-button type="primary" size="mini" icon="el-icon-edit">编辑课程基本信息</el-button> </router-link> <router-link :to="'/teacher/edit/'+scope.row.id"> <el-button type="primary" size="mini" icon="el-icon-edit">编辑课程大纲</el-button> </router-link> <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除</el-button> </template> </el-table-column> </el-table>
-
methods方法
// 课程列表的方法
getList(page = 1) {
this.page = page;
course
.getListCourse(this.page, this.limit, this.courseQuery)
.then((response) => {
//请求成功
//response接口返回的数据
this.list = response.data.rows
this.total = response.data.total
});
}, -
测试
2. 课程列表查询功能
-
EduCourseController
// 多条件查询课程带分页
@ApiOperation(value = "多条件查询讲师带分页")
@PostMapping("pageCourseCondition/{page}/{limit}")
public R pageTeacherCondition(@ApiParam(name = "page", value = "当前页码", required = true)@PathVariable Long page,
@ApiParam(name = "limit", value = "每页记录数", required = true)@PathVariable Long limit,
// required = false 表示此条件对象可以不传入值
@RequestBody(required = false) CourseQuery courseQuery) {
// 创建分页page对象
Page<EduCourse> pageParam = new Page<>(page, limit);
// 调用方法实现多条件分页查询
courseService.pageQuery(pageParam, courseQuery);
// 获取查询到的数据
List<EduCourse> records = pageParam.getRecords();
// 获取总记录数
long total = pageParam.getTotal();
return R.ok().data("total", total).data("rows", records);
} -
EduCourseService
// 多条件查询课程带分页
void pageQuery(Page<EduCourse> pageParam, CourseQuery courseQuery); -
EduCourseServiceImpl
// 多条件查询课程带分页
@Override
public void pageQuery(Page<EduCourse> eduCoursePage, CourseQuery courseQuery) {
QueryWrapper<EduCourse> queryWrapper = new QueryWrapper<>();
queryWrapper.orderByDesc("gmt_create");
if(courseQuery==null){
this.page(eduCoursePage,queryWrapper);
return;
}
String title = courseQuery.getTitle();
String teacherId = courseQuery.getTeacherId();
String subjectId = courseQuery.getSubjectId();
String subjectParentId = courseQuery.getSubjectParentId();
String status = courseQuery.getStatus();
if(!StringUtils.isEmpty(title)){
queryWrapper.like("title",title);
}
if(!StringUtils.isEmpty(teacherId)){
queryWrapper.eq("teacher_id",teacherId);
}
if(!StringUtils.isEmpty(status)){
queryWrapper.eq("status",status);
}
if(!StringUtils.isEmpty(subjectId)){
queryWrapper.eq("subject_id", subjectId);
}
if(!StringUtils.isEmpty(subjectParentId)){
queryWrapper.eq("subject_parent_id", subjectParentId);
}
this.page(eduCoursePage,queryWrapper);
} -
定义api
// 课程列表(条件查询分页)
getListCourse(page,limit,courseQuery) {
return request({
url: `/eduservice/course/pageCourseCondition/${page}/${limit}`,
method: 'post',
data:courseQuery
})
}, -
template
<!--查询表单-->
<el-form :inline="true" class="demo-form-inline">
<el-form-item>
<el-input v-model="courseQuery.title" placeholder="课程名称" />
</el-form-item>
<el-form-item>
<el-select
v-model="courseQuery.status"
clearable
placeholder="课程状态"
>
<el-option value="Normal" label="已发布" />
<el-option value="Draft" label="未发布" />
</el-select>
</el-form-item>
<el-form-item>
<el-input v-model="courseQuery.teacherId" placeholder="教师id" />
</el-form-item>
<el-button type="primary" icon="el-icon-search" @click="getList()"
>查询</el-button
>
<el-button type="default" @click="resetData()">清空</el-button>
</el-form> -
methods方法
getList(page = 1) {
this.page = page;
course
.getListCourse(this.page, this.limit, this.courseQuery)
.then((response) => {
//请求成功
//response接口返回的数据
this.list = response.data.rows
this.total = response.data.total
});
},
resetData() {
// 清空的方法
// 表单输入项数据清空
this.courseQuery = {}
// 查询所有讲师数据
this.getList()
}, -
测试
3. 课程列表删除课程功能
一、后端实现
-
controller层
EduCourseController
// 删除课程
@DeleteMapping("{courseId}")
public R deleteCourse(@PathVariable String courseId) {
courseService.removeCourse(courseId);
return R.ok();
} -
service层
如果用户确定删除,则首先删除video
记录,然后删除chapter
记录,再删除description
记录,最后删除Course
记录.
-
EduVideoService
// 根据课程id删除小节
void removeVideoByCourseId(String courseId); -
EduVideoServiceImpl
// 根据课程id删除小节
@Override
public void removeVideoByCourseId(String courseId) {
QueryWrapper<EduVideo> queryWrapper = new QueryWrapper<>();
queryWrapper.eq("course_id", courseId);
baseMapper.delete(queryWrapper);
} -
EduChapterService
//根据课程id删除章节
void removeChapterByCourseId(String courseId); -
EduChapterServiceImpl
//根据课程id删除章节
@Override
public void removeChapterByCourseId(String courseId) {
QueryWrapper<EduChapter> queryWrapper = new QueryWrapper<>();
queryWrapper.eq("course_id", courseId);
baseMapper.delete(queryWrapper);
} -
EduCourseService
// 删除课程
void removeCourse(String courseId); -
EduCourseServiceImpl
// 删除课程
@Override
public void removeCourse(String courseId) {
// 1.根据课程id删除小节
// TODO 删除小节,删除对应视频文件
eduVideoService.removeVideoByCourseId(courseId);
//2.根据课程id删除章节
eduChapterService.removeChapterByCourseId(courseId);
//3.根据课程id删除描述
courseDescriptionService.removeById(courseId);
//4.根据课程id删除课程本身
int result = baseMapper.deleteById(courseId);
if (result == 0) {
throw new GuliException(20001, "删除失败");
}
}
二、前端实现
-
定义api
// 删除课程
deleteCourseId(id) {
return request({
url: `/eduservice/course/${id}`,
method: 'delete'
})
}, -
template
<el-button type="danger" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除</el-button>
-
methods方法
//删除课程的方法
removeDataById(id) {
this.$confirm('此操作将永久删除讲师记录, 是否继续?', '提示', {
confirmButtonText: '确定',
cancelButtonText: '取消',
type: 'warning'
}).then(() => { //点击确定,执行then方法
//调用删除的方法
course.deleteCourseId(id)
.then(response =>{//删除成功
//提示信息
this.$message({
type: 'success',
message: '删除成功!'
});
//回到列表页面
this.getList()
})
}) //点击取消,执行catch方法
} -
测试
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