java - 如何: Write a File with FileOutputStream?

Question

我正在做的是，我为 BufferOutputStream 读取的文件和每一行数据将保存在 FileOutputStream 中，并且我想指定输出数据。

Answer 1

如果我理解正确，您想从 S3 下载文件并使用 BufferedOutputStream 写入本地目录。

    S3Object object = s3.getObject(new GetObjectRequest(bucketName, key));
    InputStream is = object.getObjectContent();



 // Creating file
        File file= new File(localFilePath);
        FileOutputStream fos = new FileOutputStream(file);
        BufferedOutputStream bos= new BufferedOutputStream(fos);

    int read = -1;

    while ((read = is.read()) != -1) {
        bos.write(read);
    }

    bos.flush();
    bos.close();
    is.close();