基于Java开发的在线直播平台源码（期末大作业）.zip

package cn.jerryshell.liveteaching.controller; import cn.jerryshell.liveteaching.config.VideoConfig; import cn.jerryshell.liveteaching.model.Course; import cn.jerryshell.liveteaching.model.Video; import cn.jerryshell.liveteaching.model.VideoMaterial; import cn.jerryshell.liveteaching.service.CourseService; import cn.jerryshell.liveteaching.service.TeacherService; import cn.jerryshell.liveteaching.service.VideoMaterialService; import cn.jerryshell.liveteaching.service.VideoService; import cn.jerryshell.liveteaching.util.Util; import cn.jerryshell.liveteaching.vm.VideoViewModel; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.core.io.Resource; import org.springframework.core.io.UrlResource; import org.springframework.http.HttpHeaders; import org.springframework.http.ResponseEntity; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.util.StringUtils; import org.springframework.web.bind.annotation.*; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpSession; import java.net.MalformedURLException; import java.util.List; import java.util.UUID; @Controller public class VideoController { @Autowired private VideoService videoService; @Autowired private VideoConfig videoConfig; @Autowired private CourseService courseService; @Autowired private TeacherService teacherService; @Autowired private VideoMaterialService videoMaterialService; @GetMapping("/video") public String toVideoListPage(Model model) { return toVideoListPage(model, videoService.findAll()); } @GetMapping("/video/course/{courseId}") public String toVideoListByCourseIdPage(@PathVariable String courseId, Model model) { return toVideoListPage(model, videoService.findByCourseId(courseId)); } private String toVideoListPage(Model model, List<Video> videoList) { List<Course> courseList = courseService.findAll(); model.addAttribute("courseList", courseList); List<VideoViewModel> videoVMList = VideoViewModel.loadFromVideoList( videoList, teacherService, courseService, videoMaterialService ); model.addAttribute("videoVMList", videoVMList); return "video-list"; } @PostMapping("/video/upload") public String upload( Video video, @RequestParam("videoFile") MultipartFile videoFile, @RequestParam("videoMaterial") MultipartFile videoMaterialFile, HttpSession session ) { String videoFilename = videoFile.getOriginalFilename(); if (StringUtils.isEmpty(videoFilename)) { return "redirect:/user/upload-video"; } // 视频后缀名 String videoFileType = Util.getFileTypeByFilename(videoFilename); // 只能解码 mp4 文件 if (!"mp4".equals(videoFileType)) { return "redirect:/user/upload-video"; } video.setId(UUID.randomUUID().toString()); video.setTeacherId(session.getAttribute("loginUserId").toString()); video.setFileType(videoFileType); videoService.uploadVideo(videoFile, video.getId() + "." + video.getFileType()); videoService.save(video); // 视频资料 String materialFilename = videoMaterialFile.getOriginalFilename(); if (StringUtils.isEmpty(materialFilename)) { return "redirect:/user/video-list"; } VideoMaterial videoMaterial = new VideoMaterial(); videoMaterial.setId(UUID.randomUUID().toString()); videoMaterial.setVideoId(video.getId()); videoMaterial.setFileType(Util.getFileTypeByFilename(materialFilename)); videoMaterialService.upload(videoMaterialFile, videoMaterial.getId() + "." + videoMaterial.getFileType()); videoMaterialService.save(videoMaterial); return "redirect:/user/video-list"; } @GetMapping("/video/{videoId}") public String videoWatching(@PathVariable String videoId, Model model) { Video video = videoService.findById(videoId); if (video == null) { return "redirect:/video"; } VideoMaterial videoMaterial = videoMaterialService.findByVideoId(videoId); model.addAttribute("videoId", videoId); model.addAttribute("videoName", video.getId() + "." + video.getFileType()); model.addAttribute("videoMaterial", videoMaterial); return "video-watching"; } @DeleteMapping("/video/{videoId}") public String deleteVideo(@PathVariable String videoId) { videoService.deleteVideoById(videoId); VideoMaterial videoMaterial = videoMaterialService.findByVideoId(videoId); if (videoMaterial != null) { videoMaterialService.deleteById(videoMaterial.getId()); } return "redirect:/user/video-list"; } @GetMapping("/video/download/{filename}") public ResponseEntity<Resource> download(@PathVariable String filename) throws MalformedURLException { return ResponseEntity.ok() .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + filename + "\"") .body(new UrlResource("file://" + videoConfig.getFilepath() + "/" + filename)); } @GetMapping("/video/material/{materialId}") public ResponseEntity<Resource> downloadMaterial(@PathVariable String materialId) throws MalformedURLException { VideoMaterial videoMaterial = videoMaterialService.findById(materialId); String filename = videoMaterial.getId() + "." + videoMaterial.getFileType(); return ResponseEntity.ok() .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + filename + "\"") .body(new UrlResource("file://" + videoConfig.getMaterialFilePath() + "/" + filename)); } }