官網參考：https://docs.djangoproject.com/zh-hans/3.2/howto/custom-file-storage/

當前業務需要使用django的admin後臺進行資料的管理，需要實現檔案的上傳雲端-騰訊雲

具體實現：

安裝依賴包：
pip install cos-python-sdk-v5==1.9.10

自定義一個儲存類：

1)繼承Django.core.files.storage.Storage

2）重寫save方法

3）新增裝飾器，方便進行資料庫檔案的遷移django.utils.deconstruct.deconstructible

demo：

#!/usr/bin/env python
# 
 
-*- coding: utf-8 -*-
from django.conf import settings
from django.core.files.storage import Storage
from django.utils.deconstruct import deconstructible
from qcloud_cos import CosConfig, CosS3Client

from .common import generate_img_url


secret_id = settings.OSS_QCLOUD_SECRET_ID
secret_key = settings.OSS_QCLOUD_SECRET_KEY
region 
 
= settings.OSS_QCLOUD_REGION
bucket = settings.OSS_QCLOUD_BUCKET
token = settings.OSS_QCLOUD_TOKEN
scheme = settings.OSS_QCLOUD_SCEHME
config = CosConfig(Region=region, SecretId=secret_id, SecretKey=secret_key, Token=token, Scheme=scheme)
client = CosS3Client(config)
host = settings.OSS_PREFIX

@deconstructible
 
class CosStorage(Storage):

    def save(self, name, content, max_length=None):
        """
        重寫save方法
        """
        # suffix = name.split('.')[-1]
        # key = self.generate_key(suffix)
        key = generate_img_url(name)
        try:
            response = client.put_object(
                Bucket=bucket,
                Body=content.read(),
                Key=key,
                StorageClass='STANDARD',
                EnableMD5=True
            )
        except Exception as e:
            raise
        return host + key

    def url(self, name):
        return name

配置檔案中需要新增配置項：

OSS_QCLOUD_SECRET_ID = 'sercret-id'
OSS_QCLOUD_SECRET_KEY = 'secret-key'
OSS_QCLOUD_REGION = '所選區域'
OSS_QCLOUD_BUCKET = '建立的bucket'
OSS_QCLOUD_TOKEN = None
OSS_QCLOUD_SCEHME = 'https'
OSS_NAMESPACE = '可以區分場景'
OSS_PREFIX = 'https://xxx.cos.所選區域.myqcloud.com'

公共方法：

# 生成圖片路徑
def generate_img_url(file_name, scene='default'):
    file_ext = file_name.rsplit('.', 1)[-1]
    new_file_name = scene + '_' + str(datetime.datetime.today()).replace('-', '').replace(' ', '_').replace(':', '') + '.' + file_ext
    namespace = settings.OSS_NAMESPACE
    return f'/{namespace}/' + new_file_name

最後新增到model中定義的欄位中

file = models.FileField(verbose_name='檔案', storage=CosStorage())


# 注意：這裡使用的FileField   如果是圖片的話可以使用ImageField

參考：https://www.jianshu.com/p/cb7a7f31e962