#!/usr/bin/env python# -*- coding:utf-8 -*-# *************************************# @Time : 2019/8/12# @Author : Zhang Fan# @Desc : Library# @File : MyRedis.py# @Update : 2019/8/23# *************************************import redisclass MyRedis(object): ''' =================================================================== ===================== MyRedis ======================== =================================================================== ''' def __init__(self): self.redis_conn = None self.redis_db = None def connect_to_redis(self, redis_host, redis_port=6379, db=0, password=None): ''' 連接到Redis服務器 ''' self.redis_db = db print(’Executing : Connect To Redis | host={0}, port={1}, db={2}, password={3}’ .format(redis_host, redis_port, self.redis_db, password)) try: self.redis_conn = redis.StrictRedis(host=redis_host, port=redis_port, db=self.redis_db, password=password) except Exception as ex: logger.error(str(ex)) raise Exception(str(ex)) def redis_key_should_be_exist(self, name): ''' 驗證redis存在指定鍵 ''' if not self.redis_conn.exists(name): logger.error(('Redis of db%s doesn’t exist in key [ %s ].' % (self.redis_db, name))) raise AssertionError def redis_key_should_not_be_exist(self, name): ''' 驗證redis不存在指定鍵 ''' if self.redis_conn.exists(name): logger.error(('Redis of db%s exist in key [ %s ].' % (self.redis_db, name))) raise AssertionError def getkeys_from_redis_bypattern(self, pattern, field=None): ''' 獲取redis所有鍵值 ''' keys_list = list() print(’Executing : Getall Key | %s’ % pattern) if field is None: return self.redis_conn.keys(pattern) else: keys = self.redis_conn.keys(pattern) for key in keys:if not self.redis_conn.hget(key, field) is None: keys_list.append(key) return keys_list # ========================== String Type ============================= def get_from_redis(self, name): ''' 獲取redis數據 ''' print(’Executing : Get Key | %s’ % name) return self.redis_conn.get(name) def del_from_redis(self, name): ''' 刪除redis中的任意數據類型 ''' return self.redis_conn.delete(name) def set_to_redis(self, name, data, expire_time=0): ''' 設置redis執行key的值 ''' return self.redis_conn.set(name, data, expire_time) def append_to_redis(self, name, value): ''' 添加數據到redis ''' return self.redis_conn.append(name, value) # ========================== Hash Type ========================== def hgetall_from_redis(self, name): ''' 獲取redis hash所有數據 ''' print(’Executing : Hgetall Key | %s’ % name) return self.redis_conn.hgetall(name) def hget_from_redis(self, name, key): ''' 獲取redis hash指定key數據 ''' print(’Executing : Hget Key | %s’ % name) return self.redis_conn.hget(name, key) def hset_to_redis(self, name, key, data): ''' 設置redis指定key的值 ''' print((’Executing : Hset Redis | name={0}, key={1}, data={2}’ .format(name, key, data))) return self.redis_conn.hset(name, key, data) def hdel_to_redis(self, name, *keys): ''' 刪除redis指定key的值 ''' print(’Executing : Hdel Key | ’, *keys) self.redis_conn.hdel(name, *keys) # ========================= ZSet Type ================================ def get_from_redis_zscore(self, name, values): ''' 獲取name對應有序集合中 value 對應的分數 ''' try: return int(self.redis_conn.zscore(name, values)) except: return self.redis_conn.zscore(name, values) def get_from_redis_zrange(self, name, start=0, end=10): ''' 按照索引范圍獲取name對應的有序集合的元素 ''' return self.redis_conn.zrange(name, start, end, desc=False, withscores=True, score_cast_func=int) def del_from_redis_zrem(self, name, values): ''' 刪除name對應的有序集合中值是values的成員 ''' return self.redis_conn.zrem(name, values) def add_from_redis_zadd(self, name, value, score): ''' 在name對應的有序集合中添加一條。若值存在，則修改對應分數。 ''' return self.redis_conn.zadd(name, {value: score}) def count_from_redis_zcard(self, name): ''' 獲取name對應的有序集合元素的數量 ''' return self.redis_conn.zcard(name)if __name__ == ’__main__’: print(’This is test.’) mr = MyRedis()

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