弹簧启动 + 视频错误"video playback aborted due to a network error"

Question

所以我设计了一个应用程序，它有一个reactjs前端，从spring引导后端提供内容。我有一个提供视频的休息控制器。它运行了大约 10 分钟，然后我在浏览器中收到"由于网络错误而视频播放中止"。我在这里做错了什么吗？这应该在另一个线程或异步或其他东西上完成吗？我想这一切都在春天完成。

@RestController
@CrossOrigin
public class VideoDirectoryController {
@Autowired
private ConfigManager<LibraryConfig> librariesConf;
/**
* 
* @param libraryName
* @param fileName
* @return
*/
@GetMapping(value = "/getVideo", produces = "video/mp4")
public byte[] getVideo(@RequestParam(value = "library") String libraryName,
@RequestParam(value = "fileName") String fileName) {
Library lib = librariesConf.getConfig().getLibraries().get(libraryName.toLowerCase());
Video video = lib.getVideoFiles().get(fileName);
lib.getRecentlyViewed().add(video);
librariesConf.getConfig().getLibraries().keySet().forEach((libr) -> System.out.println("LIBR: :" + libr));
try (FileInputStream out = new FileInputStream(lib.getFileDirectory(fileName))) {
return IOUtils.toByteArray(out);
} catch (IOException e) {
e.printStackTrace();
}
return null;
}

正如我所说，这在大约 10 分钟内工作正常。如果我使用 ：3000(前端(和直接点击获取视频的 URL(：8080/getVideo(，它都可以做到这一点

任何帮助不胜感激，我以前从未在 Spring Boot 中使用过多媒体。

Answer 1

我建议使用StreamingResponseBody或直接写入HttpServletRequest的OutputStream。以及设置响应的内容类型和大小。

@GetMapping(value = "/getVideo", produces = "video/mp4")
public void getVideo(@RequestParam(value = "library") String libraryName,
@RequestParam(value = "fileName") String fileName, HttpServletResponse response) {
Library lib = librariesConf.getConfig().getLibraries().get(libraryName.toLowerCase());
Video video = lib.getVideoFiles().get(fileName);
lib.getRecentlyViewed().add(video);
librariesConf.getConfig().getLibraries().keySet().forEach((libr) -> System.out.println("LIBR: :" + libr));
try (FileInputStream out = new FileInputStream(lib.getFileDirectory(fileName))) {
return StreamUtils.copy(out, response.getOutputStream());
} catch (IOException e) {
e.printStackTrace();
}
}

或者使用StreamingResponseBody相同

@GetMapping(value = "/getVideo", produces = "video/mp4")
public StreamingResponseBody getVideo(@RequestParam(value = "library") String libraryName,
@RequestParam(value = "fileName") String fileName) {
Library lib = librariesConf.getConfig().getLibraries().get(libraryName.toLowerCase());
Video video = lib.getVideoFiles().get(fileName);
lib.getRecentlyViewed().add(video);
librariesConf.getConfig().getLibraries().keySet().forEach((libr) -> System.out.println("LIBR: :" + libr));
return new StreamingResponseBody() {
public void write(OutputStream out2) throws IOException {
try (FileInputStream out = new FileInputStream(lib.getFileDirectory(fileName))) {
StreamUtils.copy(out, out2);       
}
}
};
}