Python脚本之阿里云OSS上传、下载文件

本文为博主原创，未经许可严禁转载。
本文链接：https://blog.csdn.net/zyooooxie/article/details/108194392

去年某个需求用到 上传本地文件到阿里云oss + 从oss下载文件做内容校验； 从没接触过的我，只能边学习边实践，如今趁着有机会，做个总结；

个人博客：https://blog.csdn.net/zyooooxie

阿里云OSS

官方介绍 https://help.aliyun.com/document_detail/31817.html

图形化管理工具 ossbrowser

我实际 是在用这个ossbrowser， 官方文档 https://help.aliyun.com/document_detail/61872.html

Python 代码

官方文档 https://help.aliyun.com/document_detail/32026.html

https://aliyun-oss-python-sdk.readthedocs.io/en/stable/api.html#

本身我要上传、下载的文件 大小在10M内，属于小文件，就是普通的上传、下载；

上传 put_object_from_file()

https://help.aliyun.com/document_detail/88426.html#title-urs-0wu-mpi

class OssUpload(unittest.TestCase):
    """
    Oss上传文件
    """

    def upload_csv(self, date, file_name, object_dir='settlement_file'):
        os.chdir(r'D:\csdn\zyooooxie')

        if date.find('-') == -1:
            date = '-'.join([date[:4], date[4:6], date[6:]])

        oss_auth = oss2.Auth('zyooooxie', 'zyooooxie')
        oss_bucket = oss2.Bucket(oss_auth, 'http://oss-cn-zyooooxie-zyooooxie.zyooooxie.com', 'finance-zyooooxie-zyooooxie-zyooooxie')

        # OSS是没有文件夹这个概念的，所有元素都是以Object来存储。
        # 创建 模拟文件夹 本质上来说是创建一个文件名以正斜线（/）结尾，大小为0 KB的Object。
        # 这个Object可以被上传和下载，只是控制台会对以正斜线（/）结尾的Object以文件夹的方式展示
        
        remote_name = '/'.join([object_dir, date, file_name])

        result = oss_bucket.put_object_from_file(key=remote_name, filename=file_name)
        if result.status == 200:
            Log.info('上传成功 status为{}'.format(result.status))
            

下载 get_object_to_file()

https://help.aliyun.com/document_detail/88442.html

实际因为涉及到 某不确定的 object_dir ，下载时候要先列举下所有文件 做个筛选；

https://help.aliyun.com/document_detail/88458.html

class OssDownload(unittest.TestCase):
    """
    Oss下载文件
    """

    def setUp(self):
        warnings.simplefilter('ignore', ResourceWarning)

    def download_csv(self, object_dir, date, file_type='zip', file_name=None, qjs='yes'):
		# 下面2行 实际是有省略
        if qjs == 'yes':
            re_str = r'^{}{}.*{}$'.format(object_dir, date, file_type)

        end_point = 'http://oss-cn-zyooooxie-zyooooxie.zyooooxie.com'
        oss_auth = oss2.Auth('zyooooxie', 'zyooooxie')
        oss_bucket = oss2.Bucket(oss_auth, end_point, 'finance-zyooooxie-zyooooxie-zyooooxie')

        if file_name is not None:
            file = [abc.key for abc in oss2.ObjectIterator(oss_bucket) if abc.key.find(file_name) != -1 and abc.key.find(object_dir) != -1]
        else:
            file = [i.key for i in oss2.ObjectIterator(oss_bucket) if re.search(re_str, i.key)]

        Log.info(file)

        if len(file) == 0:
            raise Exception('file 没找到: {}'.format(file))
        elif len(file) == 1:

            Log.info('file 找到了：{}'.format(file))
            self.download_csv_2(oss_bucket, file[0], date, file[0].split('/')[-1])
        else:
            raise Exception('file数量 不对')

        Log.info('文件已下载')
        # os.system("explorer {}".format(lu_old))

    def download_csv_2(self, oss_bucket, key, date, remote_name):
    	# 下面2行 实际是有省略
		lu = r'D:\work\zyooooxie\csdn'
        os.chdir(lu)
        try:
            result = oss_bucket.get_object_to_file(key, remote_name)
            if result.status == 200:
                Log.debug('文件已下载 {}'.format(remote_name))
        except NoSuchKey as e:
            Log.info('下载失败 {}'.format(e))

        os.chdir(r'..')
        

这篇分享讲的很粗，是因为 我实际工作只用到这些 = = ；

交流技术 欢迎+QQ 153132336 zy
个人博客 https://blog.csdn.net/zyooooxie