python操作redis——keys
前面介紹了Linux客戶端
redis的keys操作
以及
連線認證的三個設定
,那麼python客戶端怎麼操作呢,我們來複現一下。
python 需要先 pip install redis
from redis import Redisif __name__ == ‘__main__’:client=Redis(host=‘192。168。174。129’,port=6666)# 各種操作……client。close()
注意上面返回的值型別是byte型:
keys=client。keys()print(keys)# [b‘a3c’, b‘aBc’, b‘abc’, b‘a8c’, b‘abbc’]print(type(keys[0]))#
如果想返回值是字串,可在連線引數中加一個decode_responses=True:
client=Redis(host=‘192。168。174。129’,port=6666,decode_responses=True)
1. keys
keys = client。keys(‘a[A-C1-9]c’)print(keys)# [‘a3c’, ‘aBc’, ‘a8c’]
2. dbsize
size=client。dbsize()print(size) # 5
3. exists key
exist=client。exists(‘abc’)print(exist) # 1
4. del key
result = client。delete(‘a8c’)print(result) # 1
5. type key
t = client。type(‘abc’)print(t) # string
6. expire key seconds
result = client。expire(‘abc’,400)print(result) # True# result = client。pexpire(‘a3c’,1000)# result = client。expireat(‘abc’,1607265348)# result = client。pexpireat(‘abc’,1607265348。3004)
7. ttl key
time_remained = client。ttl(‘abc’)print(time_remained) # 295
8. persist key
result = client。persist(‘abc’)print(result) # True