mongodb如何存储图片

from pymongo import MongoClient

from gridfs import *

import requests

client = MongoClient('127.0.0.1', 27017) #连接mongodb

db = client.photo #连接对应数据库

#db.authenticate("username","passowd")

fs = GridFS(db, collection="images") #连接collection

data = requests.get(dic["photo_url"], timeout=10).content

# 确认数据库中不存在此图片之后再保存

if not fs.find_one({"photo_url":dic["photo_url"]}):

    fs.put(data, **dic)

# 上传成功后，photo数据库下出现两个collection，分别为: images.files, images.chunks12345678910111213

from pymongo import MongoClient

from gridfs import *

client = MongoClient('127.0.0.1', 27017) #连接mongodb

db = client.photo #连接对应数据库

#db.authenticate("username","passowd")

fs = GridFS(db, collection="images") #连接collection

num = 1

for grid_out in fs.find(no_cursor_timeout=True):

    data = grid_out.read() # 获取图片数据

    outf = open('/home/%d.jpg'%num,'wb')

    outf.write(data) #存储图片

    outf.close()

    if num%100000 == 0

        metadata_file = open("/home/metadata%d.csv"%(num/100000+1), "ab")

        csv_writer = csv.writer(metadata_file,delimiter='\t')

    row = [grid_out.photo_title.encode('utf-8'), grid_out.uploadDate, grid_out.upload_date, \

        grid_out.longitude, grid_out.latitude, grid_out.width, grid_out.height,\

        grid_out.owner_name.encode('utf-8'), grid_out.photo_id, grid_out._id, grid_out.photo_url]

    csv_writer.writerow(row)12345678910111213141516171819

from bson import binary

from pymongo import MongoClient

client = MongoClient('127.0.0.1', 27017) #连接mongodb

db = client.photo #连接对应数据库

image_collection = db.images

data = requests.get(dic["photo_url"], timeout=10).content

# 确认数据库中不存在此图片之后再保存

if not image_collection.find_one({"photo_url":dic["photo_url"]})

    dic["imagecontent"] = binary.Binary(data)

    image_collection.insert(dic)1234567891011