java - Amazon S3 AWS 上传进度监听器

Question

有谁知道如何在 Amazon S3 中查看分段上传中的上传进度(百分比)？

Answer 1

我会这样做:

MultipleFileUpload transfer = transferManager.uploadDirectory(mybucket, null, new File(localSourceDataFilesPath), false);

// blocks the thread until the upload is completed
showTransferProgress(transfer);

然后在 showTransferProgress 中，我将创建一个使用 hibernate 的上传 block ，并每隔 X 秒计算一次:

private void showTransferProgress(MultipleFileUpload xfer) {
        while (!xfer.isDone()) {
            // some logic to wait so you don't do the math every second like a Thread.sleep

            TransferProgress progress = xfer.getProgress();
            long bytesTransferred = progress.getBytesTransferred();
            long total = progress.getTotalBytesToTransfer();
            Double percentDone = progress.getPercentTransferred();
            LOG.debug("S3 xml upload progress...{}%", percentDone.intValue());
            LOG.debug("{} bytes transferred to S3 out of {}", bytesTransferred, total);
        }

        // print the final state of the transfer.
        TransferState xferState = xfer.getState();
        LOG.debug("Final transfer state: " + xferState);
    }

这一行就是你要找的:

Double percentDone = progress.getPercentTransferred();