如何用redis存储和检索词典

Question

# I have the dictionary my_dict
my_dict = {
    'var1' : 5
    'var2' : 9
}
r = redis.StrictRedis()

我该如何存储我的盘条并用redis检索它。例如，以下代码不起作用。

#Code that doesn't work
r.set('this_dict', my_dict)  # to store my_dict in this_dict
r.get('this_dict')  # to retrieve my_dict

Answer 1

另一种方法：可以使用RedisWorks库。

pip install redisworks

>>> from redisworks import Root
>>> root = Root()
>>> root.something = {1:"a", "b": {2: 2}}  # saves it as Hash type in Redis
...
>>> print(root.something)  # loads it from Redis
{'b': {2: 2}, 1: 'a'}
>>> root.something['b'][2]
2

它将python类型转换为Redis类型，反之亦然。

>>> root.sides = [10, [1, 2]]  # saves it as list in Redis.
>>> print(root.sides)  # loads it from Redis
[10, [1, 2]]
>>> type(root.sides[1])
<class 'list'>

免责声明：我写了图书馆。这是代码：https://github.com/seperman/redisworks

Answer 2

您可以通过hmset（可以使用hmset设置多个键）。

hmset("RedisKey", dictionaryToSet)

import redis
conn = redis.Redis('localhost')

user = {"Name":"Pradeep", "Company":"SCTL", "Address":"Mumbai", "Location":"RCP"}

conn.hmset("pythonDict", user)

conn.hgetall("pythonDict")

{'Company': 'SCTL', 'Address': 'Mumbai', 'Location': 'RCP', 'Name': 'Pradeep'}

Answer 3

你可以腌制你的dict并保存为string。

import pickle
import redis

r = redis.StrictRedis('localhost')
mydict = {1:2,2:3,3:4}
p_mydict = pickle.dumps(mydict)
r.set('mydict',p_mydict)

read_dict = r.get('mydict')
yourdict = pickle.loads(read_dict)