django文件对象是什么？

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classMyModel(models.Model):

file=models.FileField(upload_to='files/')

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obj.file.save('result.txt', ContentFile('hello world'))

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defupload(request):

f=request.FILES['file']# InMemoryUploadedFile 或 TemporaryUploadedFile

print(f.name, f.size, f.content_type)

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fromdjango.core.files.baseimportContentFile

content="name,age\nTom,18\nJerry,20"

obj.file.save("data.csv", ContentFile(content))

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fromdjango.core.filesimportFile

withopen('local.txt','rb') as f:

obj.file.save('copy.txt',File(f))

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DEFAULT_FILE_STORAGE='django.core.files.storage.FileSystemStorage'

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importos

BASE_DIR=os.path.dirname(os.path.dirname(__file__))

MEDIA_ROOT=os.path.join(BASE_DIR,'media')# 真实文件保存路径

MEDIA_URL='/media/'# 浏览器访问前缀

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classMyModel(models.Model):

file=models.FileField(upload_to='uploads/')

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obj.file.save('a.txt', ContentFile('hello'))

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fromdjango.confimportsettings

fromdjango.conf.urls.staticimportstatic

urlpatterns=[

# ... 你的其他 URL

]+static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

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pip install django-storages boto3

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INSTALLED_APPS=[

# ...

'storages',

]

DEFAULT_FILE_STORAGE='storages.backends.s3boto3.S3Boto3Storage'

AWS_ACCESS_KEY_ID='你的Key'

AWS_SECRET_ACCESS_KEY='你的Secret'

AWS_STORAGE_BUCKET_NAME='你的bucket名字'

AWS_S3_ENDPOINT_URL='https://s3.amazonaws.com'# 若用其他云厂商，写他们给的S3兼容endpoint

MEDIA_URL='https://你的bucket域名/'# 访问 URL 前缀

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classMyModel(models.Model):

file=models.FileField(upload_to='files/')

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obj.file.save('a.txt', ContentFile('hello cloud'))