如何将大文件上传到gcp云存储?

存储版本:

  <artifactId>google-cloud-storage</artifactId>
  <version>1.63.0</version>

制备:

            BlobId blobId = BlobId.of(BUCKET_NAME, date.format(BASIC_ISO_DATE) + "/" + prefix + "/" + file.getName());
            BlobInfo blobInfo = BlobInfo.newBuilder(blobId).setContentType("application/gzip").build();
            uploadToStorage(storage, file, blobInfo);

主要方法:

private void uploadToStorage(Storage storage, File uploadFrom, BlobInfo blobInfo) throws IOException {
    // For small files:
    if (uploadFrom.length() < 1_000_000) {
        byte[] bytes = Files.readAllBytes(uploadFrom.toPath());
        storage.create(blobInfo, bytes);
        return;
    }

    // For big files:
    // When content is not available or large (1MB or more) it is recommended to write it in chunks via the blob's channel writer.
    try (WriteChannel writer = storage.writer(blobInfo)) {

        byte[] buffer = new byte[10_240];
        try (InputStream input = Files.newInputStream(uploadFrom.toPath())) {
            int limit;
            while ((limit = input.read(buffer)) >= 0) {
                writer.write(ByteBuffer.wrap(buffer, 0, limit));
            }
        }

    }
}

这是因为 文件.readAllBytes 有一个 bigger size than the maximum allowed .

解决方法是将文件分成多个字节数组,将它们作为单独的文件上载到bucket中,并使用 gsutil compose command .