图片.png需求
删除课程的同时删除云端视频

一、vod服务

1、业务

业务接口：VideoService.java

  1. void removeVideoList(List<String> videoIdList);

业务实现：VideoServiceImpl.java

  1. @Override
  2. public void removeVideoList(List<String> videoIdList) {
  3.     try {
  4.         //初始化
  5.         DefaultAcsClient client = AliyunVodSDKUtils.initVodClient(
  6.             ConstantPropertiesUtil.ACCESS_KEY_ID,
  7.             ConstantPropertiesUtil.ACCESS_KEY_SECRET);
  9.         //创建请求对象
  10.         //一次只能批量删20个
  11.         String str = org.apache.commons.lang.StringUtils.join(videoIdList.toArray(), ",");
  12.         DeleteVideoRequest request = new DeleteVideoRequest();
  13.         request.setVideoIds(str);
  15.         //获取响应
  16.         DeleteVideoResponse response = client.getAcsResponse(request);
  18.         System.out.print("RequestId = " + response.getRequestId() + "\n");
  20.     } catch (ClientException e) {
  21.         throw new GuliException(20001, "视频删除失败");
  22.     }
  23. }

2、web层接口

controller：VideoAdminController.java

  1. /**
  2.      * 批量删除视频
  3.      * @param videoIdList
  4.      * @return
  5.      */
  6. @DeleteMapping("delete-batch")
  7. public R removeVideoList(
  8.     @ApiParam(name = "videoIdList", value = "云端视频id", required = true)
  9.     @RequestParam("videoIdList") List videoIdList){
  11.     videoService.removeVideoList(videoIdList);
  12.     return R.ok().message("视频删除成功");
  13. }

3、Swagger测试

输入多个id，每个一行
图片.png

二、edu服务

1、client

VodClient.java

  1. @DeleteMapping(value = "/admin/vod/video/delete-batch")
  2. public R removeVideoList(@RequestParam("videoIdList") List<String> videoIdList);

2、业务

VideoServiceImpl.java

  1. @Override
  2. public boolean removeByCourseId(String courseId) {
  4.     //根据课程id查询所有视频列表
  5.     QueryWrapper<Video> queryWrapper = new QueryWrapper<>();
  6.     queryWrapper.eq("course_id", courseId);
  7.     queryWrapper.select("video_source_id");
  8.     List<Video> videoList = baseMapper.selectList(queryWrapper);
  10.     //得到所有视频列表的云端原始视频id
  11.     List<String> videoSourceIdList = new ArrayList<>();
  12.     for (int i = 0; i < videoList.size(); i++) {
  13.         Video video = videoList.get(i);
  14.         String videoSourceId = video.getVideoSourceId();
  15.         if(!StringUtils.isEmpty(videoSourceId)){
  16.             videoSourceIdList.add(videoSourceId);
  17.         }
  18.     }
  20.     //调用vod服务删除远程视频
  21.     if(videoSourceIdList.size() > 0){
  22.         vodClient.removeVideoList(videoSourceIdList);
  23.     }
  25.     //删除video表示的记录
  26.     QueryWrapper<Video> queryWrapper2 = new QueryWrapper<>();
  27.     queryWrapper2.eq("course_id", courseId);
  28.     Integer count = baseMapper.delete(queryWrapper2);
  29.     return null != count && count > 0;
  30. }

CourseServiceImpl.java

  1. @Override
  2. public boolean removeCourseById(String id) {
  4.     //根据id删除所有视频
  5.     videoService.removeByCourseId(id);
  7.     //根据id删除所有章节
  8.     chapterService.removeByCourseId(id);
  10.     //根据id删除所有课程详情
  11.     courseDescriptionService.removeById(id);
  13.     //删除封面 TODO 独立完成
  15.     Integer result = baseMapper.deleteById(id);
  16.     return null != result && result > 0;
  17. }