无法将文件从 Google 云端硬盘移动到 Blobstore

Question

我使用以下代码将文件从Google驱动器移动到blobstore。但是现在FileWriteChannel已被弃用，代码不起作用。有没有针对此问题的替代解决方案？

    private BlobKey getBlobKey(File f, DriveObject driveObject)
        throws IOException, MalformedURLException { 
    Drive service = ((GoogleDrive) driveObject).getService();
    byte[] buffer = new byte[(int) f.getFileSize().intValue()];
    GenericUrl url = new GenericUrl(f.getDownloadUrl());
    HttpResponse response = service.getRequestFactory()
                .buildGetRequest(url).execute();
    InputStream is = response.getContent();
    FileService fileService = FileServiceFactory.getFileService();
    AppEngineFile file = null;
    boolean lock = true;
    try {
        file = fileService.createNewBlobFile("application/zip");
        FileWriteChannel writeChannel = fileService.openWriteChannel(
                    file, lock);
        int len;
        while ((len = is.read(buffer)) >= 0) {
        ByteBuffer bb = ByteBuffer.wrap(buffer, 0, len);
        writeChannel.write(bb);
        }
        writeChannel.closeFinally();
    } catch (IOException e) {
            // TODO Auto-generated catch block
        e.printStackTrace();
    }
        BlobKey bk = fileService.getBlobKey(file);
    return bk;
}

Answer 1

您需要使用 Java 客户端库：

GcsOutputChannel outputChannel =
    gcsService.createOrReplace(fileName, GcsFileOptions.getDefaultInstance());
outputChannel.write(ByteBuffer.wrap(content));
outputChannel.close();