2022-03-22 17:08:27 +08:00
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import gridfs
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2021-12-17 17:01:32 +08:00
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import pymongo
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from bson import ObjectId
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from gridfs import GridFS
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2022-03-22 17:08:27 +08:00
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DB_HOST = "116.63.130.34"
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DB_PASS = "UTlC9cCoglD1cI1*"
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DB_USER = "root"
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DB_PORT = "27021"
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client = pymongo.MongoClient('mongodb://{}:{}@{}:{}'.format(DB_USER, DB_PASS, DB_HOST, DB_PORT))
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2021-12-17 17:01:32 +08:00
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2022-03-22 17:08:27 +08:00
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def FIND_FILE(bucket, file_id):
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2021-12-17 17:01:32 +08:00
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"""
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读取一个文件
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Parameters:
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2022-03-22 17:08:27 +08:00
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bucket: 文件存储桶
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file_id: 文件ID
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2021-12-17 17:01:32 +08:00
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Returns:
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2022-03-22 17:08:27 +08:00
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data 成功: 文件二进制; 失败: None
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2021-12-17 17:01:32 +08:00
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"""
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# 实例化一个文件存储器
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2022-03-22 17:08:27 +08:00
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gfs = GridFS(client['文件'], collection=bucket)
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try:
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# 二进制读取文件
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data = gfs.get(ObjectId(file_id)).read()
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# 返回文件二进制流
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return data
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except gridfs.errors.NoFile:
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return None
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