因此,我设计了一个应用程序,该应用程序具有一个reactjs前端,用于从spring boot后端提供内容。我有一个提供视频的休息控制器。它可以正常运行约10分钟,然后在浏览器中出现“由于网络错误导致视频播放中止”的信息。我在这里做错什么了吗?应该在另一个线程还是异步或其他方式上执行此操作?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,这可以正常工作约10分钟。如果我使用:3000(前端),或者直接点击获取视频的URL(:8080 / getVideo),它都会做到这一点

感谢任何帮助,我以前从未在Spring Boot中使用过多媒体。

最佳答案

我建议使用StreamingResponseBody或直接写入OutputStreamHttpServletRequest。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);
            }
        }
    };
}

09-09 23:01
查看更多