Python - 腾讯云云存储cos简单使用

Posted 2021-02-28 zhaoganggang

获取cos上传临时凭证pip install -U cos-python-sdk-v5

# -*- coding=utf-8
# appid 已在配置中移除,请在参数 Bucket 中带上 appid。Bucket 由 BucketName-APPID 组成
# 1. 设置用户配置, 包括 secretId，secretKey 以及 Region
from qcloud_cos import CosConfig
from qcloud_cos import CosS3Client
import sys
import logging

logging.basicConfig(level=logging.INFO, stream=sys.stdout)

secret_id = ‘COS_SECRETID‘      # 替换为用户的 secretId
secret_key = ‘COS_SECRETKEY‘      # 替换为用户的 secretKey
region = ‘ap-chengdu‘     # 替换为用户的 Region
token = None                # 使用临时密钥需要传入 Token，默认为空，可不填
scheme = ‘https‘            # 指定使用 http/https 协议来访问 COS，默认为 https，可不填
config = CosConfig(Region=region, SecretId=secret_id, SecretKey=secret_key, Token=token, Scheme=scheme)
# 2. 获取客户端对象
client = CosS3Client(config)

创建桶

response = client.create_bucket(
    Bucket=‘examplebucket-1250000000‘
)

上传文件

#### 高级上传接口（推荐）
response = client.upload_file(
    Bucket=‘zhoagang-1301531359‘,
    LocalFilePath=‘local.txt‘,  #//代指本地文件路径
    Key=‘picture.jpg‘,     #//上传到桶之后的文件名
    PartSize=1,
    MAXThread=10,
    EnableMD5=False
)
print(response[‘ETag‘])

python上传实例代码

# -*- coding=utf-8
# appid 已在配置中移除,请在参数 Bucket 中带上 appid。Bucket 由 BucketName-APPID 组成
# 1. 设置用户配置, 包括 secretId，secretKey 以及 Region
from qcloud_cos import CosConfig
from qcloud_cos import CosS3Client
import sys


secret_id = ‘自己的id‘      # 替换为用户的 secretId
secret_key = ‘自己的key‘      # 替换为用户的 secretKey
region = ‘ap-chengdu‘     # 替换为用户的 Region

config = CosConfig(Region=region, SecretId=secret_id, SecretKey=secret_key)
# 2. 获取客户端对象
client = CosS3Client(config)

#文件上传
response = client.upload_file(
    Bucket=‘zhoagang-1301531359‘,
    LocalFilePath=‘code.png‘,  #//代指本地文件路径
    Key=‘p1.png‘,     #//上传到桶之后的文件名
)
print(response[‘ETag‘])

python创建桶的实例代码

# 1. 设置用户配置, 包括 secretId，secretKey 以及 Region
from qcloud_cos import CosConfig
from qcloud_cos import CosS3Client
import sys


secret_id = ‘自己的id‘      # 替换为用户的 secretId
secret_key = ‘自己的key‘      # 替换为用户的 secretKey
region = ‘ap-chengdu‘     # 替换为用户的 Region

config = CosConfig(Region=region, SecretId=secret_id, SecretKey=secret_key)

client = CosS3Client(config)

response = client.create_bucket(
    Bucket=‘examplebucket-1250000000‘,
    ACL="public-read",# private 私有读私有写 /public-read 公共读 私有写   / public-read-write  /公共读/公共写
)

python实例删除桶

from qcloud_cos import CosConfig
from qcloud_cos import CosS3Client

secret_id = ‘555555‘  # 替换为用户的 secretId
secret_key = ‘6666666‘  # 替换为用户的 secretKey

region = ‘ap-chengdu‘  # 替换为用户的 Region

config = CosConfig(Region=region, SecretId=secret_id, SecretKey=secret_key)

client = CosS3Client(config)

# client.delete_object(
#     Bucket=‘wangyang-1251317460‘,
#     Key=‘p1.png‘
# )


objects = {
    "Quiet": "true",
    "Object": [
        {
            "Key": "day2牛存果.py"
        },
        {
            "Key": "小米CC9e.jpg"
        }
    ]
}

client.delete_objects(
    Bucket=‘wangyang-1251317460‘,
    Delete=objects
)

获取cos上传临时凭证及删除

def credential(bucket, region):
    """ 获取cos上传临时凭证 """

    from sts.sts import Sts

    config = {
        # 临时密钥有效时长，单位是秒（30分钟=1800秒）
        ‘duration_seconds‘: 5,
        # 固定密钥 id
        ‘secret_id‘: settings.TENCENT_COS_ID,
        # 固定密钥 key
        ‘secret_key‘: settings.TENCENT_COS_KEY,
        # 换成你的 bucket
        ‘bucket‘: bucket,
        # 换成 bucket 所在地区
        ‘region‘: region,
        # 这里改成允许的路径前缀，可以根据自己网站的用户登录态判断允许上传的具体路径
        # 例子： a.jpg 或者 a/* 或者 * (使用通配符*存在重大安全风险, 请谨慎评估使用)
        ‘allow_prefix‘: ‘*‘,
        # 密钥的权限列表。简单上传和分片需要以下的权限，其他权限列表请看 https://cloud.tencent.com/document/product/436/31923
        ‘allow_actions‘: [
            # "name/cos:PutObject",
            # ‘name/cos:PostObject‘,
            # ‘name/cos:DeleteObject‘,
            # "name/cos:UploadPart",
            # "name/cos:UploadPartCopy",
            # "name/cos:CompleteMultipartUpload",
            # "name/cos:AbortMultipartUpload",
            "*",
        ],

    }

    sts = Sts(config)
    result_dict = sts.get_credential()
    return  result_dict


def delete_bucket(bucket, region):
    """ 删除桶 """
    # 删除桶中所有文件
    # 删除桶中所有碎片
    # 删除桶
    config = CosConfig(Region=region, SecretId=settings.TENCENT_COS_ID, SecretKey=settings.TENCENT_COS_KEY)
    client = CosS3Client(config)

    try:
        # 找到文件 & 删除
        while True:
            part_objects = client.list_objects(bucket)

            # 已经删除完毕，获取不到值
            contents = part_objects.get(‘Contents‘)
            if not contents:
                break

            # 批量删除
            objects = {
                "Quiet": "true",
                "Object": [{‘Key‘: item["Key"]} for item in contents]
            }
            client.delete_objects(bucket, objects)

            if part_objects[‘IsTruncated‘] == "false":
                break

        # 找到碎片 & 删除
        while True:
            part_uploads = client.list_multipart_uploads(bucket)
            uploads = part_uploads.get(‘Upload‘)
            if not uploads:
                break
            for item in uploads:
                client.abort_multipart_upload(bucket, item[‘Key‘], item[‘UploadId‘])
            if part_uploads[‘IsTruncated‘] == "false":
                break

        client.delete_bucket(bucket)
    except CosServiceError as e:
        pass