如何在BlobStore中设置文件名属性？

问题描述：

我以编程方式上传图片文件并想设置文件名。当我通过POST上传文件时，文件名属性会自动设置。然而，当使用下面的方法时，文件名不会被设置。

I'm programatically uploading image files and want to set the filename. When I upload a file via POST, the filename property is set automatically. However when using the method below, the filename is not getting set.

        image = urllib2.urlopen(url)
        file_name = files.blobstore.create(mime_type='image/png')
        with files.open(file_name, 'a') as f:
            f.write(image.read())
        files.finalize(file_name)  
        image_blob_key = files.blobstore.get_blob_key(file_name)

答

从url解析文件名（请参阅相关问题此处）。然后，您可以通过向files.blobstore.create调用添加一个附加参数来设置它：

Parse the filename from the url (see related question here). Then you can set it by adding an additional parameter to your files.blobstore.create call:

file_name = files.blobstore.create(mime_type='image/png',_blobinfo_uploaded_filename=file_name_from_url)

如何在BlobStore中设置文件名属性？

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