使用Boto下载S3文件 [英] Download S3 Files with Boto

问题描述

我正在尝试建立一个应用程序，用户可以在其中下载其存储在S3存储桶中的文件.我可以设置存储桶并获取正确的文件，但是无法下载，因此出现以下错误:没有这样的文件或目录:'media/user_1/imageName.jpg'知道为什么吗?这似乎是一个相对容易的问题，但我似乎不太明白.我可以正确删除图像，以便能够识别正确的图像.

I am trying to set up an app where users can download their files stored in an S3 Bucket. I am able to set up my bucket, and get the correct file, but it won't download, giving me the this error: No such file or directory: 'media/user_1/imageName.jpg' Any idea why? This seems like a relatively easy problem, but I can't quite seem to get it. I can delete an image properly, so it is able to identify the correct image.

这是我的观点.py

def download(request, project_id=None):
    conn = S3Connection('AWS_BUCKET_KEY', 'AWS_SECRET_KEY')
    b = Bucket(conn, 'BUCKET_NAME')
    k = Key(b)
    instance = get_object_or_404(Project, id=project_id)
    k.key = 'media/'+str(instance.image)
    k.get_contents_to_filename(str(k.key))
    return redirect("/dashboard/")

推荐答案

问题是您正在下载到不存在的本地目录( media/user1 ).您需要:

The problem is that you are downloading to a local directory that doesn't exist (media/user1). You need to either:

• 首先在本地计算机上创建目录
• 只使用文件名而不是完整路径
• 使用完整路径，但将斜杠(/)替换为另一个字符-这将确保文件名的唯一性，而无需创建目录

• Create the directory on the local machine first
• Just use the filename rather than a full path
• Use the full path, but replace slashes (/) with another character -- this will ensure uniqueness of filename without having to create directories

最后一个选项可以通过以下方式实现:

The last option could be achieved via:

k.get_contents_to_filename(str(k.key).replace('/', '_'))

另请参阅: Boto3可以下载全部S3存储桶中的文件

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