redis：hget

#! /usr/bin/env python
# -*- coding: utf-8 -*-
# __author__ = "Victor"
# Date: 2019/12/18

from rediscluster import StrictRedisCluster

INTERVAL_TIME = 1800
REDIS_NODES = [
    {'host': '172.25.xx.70', 'port': '7000'},
    {'host': '172.xxx.102.71', 'port': '7000'},
    {'host': '172.16.1x9.72', 'port': '7000'},
    {'host': '172.16.x79.75', 'port': '7000'},
    {'host': '172.16.xx.76', 'port': '7000'},
]


class RedisApi():

    @classmethod
    def redis_conn(cls, startup_nodes=REDIS_NODES, max_connections=1000):
        redisObject = None
        try:
            redisObject = StrictRedisCluster(startup_nodes=startup_nodes, max_connections=max_connections)
        except Exception as e:
            print("redis conn error : %s" % e)
        return redisObject


if __name__ == '__main__':

    """
    /data/anaconda3/bin/python check_redis.py
    """

    idfa = "4BD4D979-892C-49D7-AFE4-40AD30F011D8"
    redisObj = RedisApi().redis_conn()
    new_rdfa = str(idfa)
    if len(new_rdfa) > 3:
        required_3 = idfa[0:3]
        join_str = "IDFA:" + "rr_app_news:" + required_3

        # redis的hget和hexists方法
        from_timestamp = redisObj.hget(join_str, new_rdfa)
        he_timestamp = redisObj.hexists(join_str, new_rdfa)
        print("from_timestamp exists: ", from_timestamp)
        print("from_timestamp exists: ", he_timestamp)

        # 查不到的时候的结果
        # from_timestamp exists:  None
        # from_timestamp exists:  False