Python读写Redis数据库操作示例

import redis

class Database: 
    def __init__(self): 
        self.host = 'localhost' 
        self.port = 6379 

    def write(self,website,city,year,month,day,deal_number): 
        try: 
            key = '_'.join([website,city,str(year),str(month),str(day)]) 
            val = deal_number 
            r = redis.StrictRedis(host=self.host,port=self.port) 
            r.set(key,val) 
        except Exception, exception: 
            print exception 

    def read(self,website,city,year,month,day): 
        try: 
            key = '_'.join([website,city,str(year),str(month),str(day)]) 
            r = redis.StrictRedis(host=self.host,port=self.port) 
            value = r.get(key) 
            print value 
            return value 
        except Exception, exception: 
            print exception 

if __name__ == '__main__': 
    db = Database() 
    db.write('meituan','beijing',2013,9,1,8000) 
    db.read('meituan','beijing',2013,9,1) 

上面操作是先写入一条数据，然后再读取，如果写入或者读取数据太多，那么我们最好用批处理，这样效率会更高。