在AWS S3中生成图像缩略图时出错

问题描述

当我将图像上传到直接Backet时，它可以正常工作，但是如果文件夹出现错误

Line => s3_client.download_file（存储桶，密钥，下载路径）

download_path。

for record in event['Records']:
    
            bucket = record['s3']['bucket']['name']
            key = record['s3']['object']['key']
    
            download_path = '/tmp/{}{}'.format(uuid.uuid4(),key)
    
            upload_path = '/tmp/resized-{}'.format(key)
    
            print('Bucket Path',bucket)
            print('Key path',key)
            print('Download path',download_path)
            print('Upload path',upload_path)
    
            s3_client.download_file(bucket,key,download_path)
            resize_image(download_path,upload_path)
            s3_client.upload_file(upload_path,'{}-resized'.format(bucket),key)

解决方法

您似乎正在使用Sample Amazon S3 function code - AWS Lambda中的代码。

该代码还有一行删除斜杠的行：

    for record in event['Records']:
        bucket = record['s3']['bucket']['name']
        key = unquote_plus(record['s3']['object']['key'])
        tmpkey = key.replace('/','')                         # <--- This line here!
        download_path = '/tmp/{}{}'.format(uuid.uuid4(),tmpkey)  # <--- Used here
        upload_path = '/tmp/resized-{}'.format(tmpkey)
        s3_client.download_file(bucket,key,download_path)
        resize_image(download_path,upload_path)
        s3_client.upload_file(upload_path,'{}-resized'.format(bucket),key)

这使Python无需创建分层目录即可存储文件。