java - 无法使用spring将大文件上传到tomcat

Question

我有一个将视频文件上传到我的服务器的应用程序，但上次尝试加载 4GB 的视频文件并上传该文件时总共只有 368Mb，共 4GB。

这是 Controller 的代码。

@RequestMapping(value = "/uploadFile", method = RequestMethod.POST)
public @ResponseBody List<String> handleFileUpload(@RequestParam("idClient") String idClient,
        @RequestParam("idChannel") String idChannel, @RequestParam("idPlayList") String idPlayList,
        MultipartHttpServletRequest request, HttpServletResponse response) {

    StringBuffer sb = new StringBuffer();
    List<String> response = new ArrayList<String>();
    Iterator<String> itr = request.getFileNames();
    MultipartFile file = null;

    while (itr.hasNext()) {

        file = request.getFile(itr.next());

        if (!file.isEmpty()) {

            sb.setLength(0);

            sb.append(tmpFolder).append(idClient).append("_").append(idChannel).append("_").append(idPlayList)
                    .append("_").append(file.getOriginalFilename());

            try {

                byte[] bytes = file.getBytes();

                BufferedOutputStream stream = new BufferedOutputStream(
                        new FileOutputStream(new File(sb.toString())));

                stream.write(bytes);

                stream.close();

                response.add("File " + file.getOriginalFilename() + " uploading.");

            } catch (IOException e) {

                response.add("File " + file.getOriginalFilename() + " not upload.");

            }

        } else {

            response.add("File no subido " + file.getOriginalFilename() + " file is empty ! .");

        }

    }

    return response;
}

那会发生吗？

感谢您的帮助!

Answer 1

我解决了!谢谢问题是，当您加载超过 2GB 的文件时，超过了字节数组可以支持的最大大小，因此文件没有完全解决这个问题，这会创建一个缓冲区，将文件读入 block 或 block 。

public void copyPartsBufferFile(InputStream input, Integer bufferSize, String fullPathDetiny) {

BufferedOutputStream stream = null;

    try {

        stream = new BufferedOutputStream(new FileOutputStream(new File(fullPathDetiny)));

        ReadableByteChannel rbc = Channels.newChannel(input);
        ByteBuffer buffer = ByteBuffer.allocate(bufferSize);
        byte[] bytes;

        while (rbc.read(buffer) >= 0) {
            buffer.flip();
            bytes = buffer.array();
            stream.write(bytes);
            buffer.clear();
        }

    } catch (FileNotFoundException e) {

    } catch (IOException e) {

    } catch (Exception e) {

    } finally {

    }

}

我留下我的代码以防有人发生同样的情况!

问候。