首页 / 数据库 / MySQL / Redis数据库(初级)
Redis是一个开源的非关系型数据库,它采用C语言编写,是一个key-value存储系统,它存储的value类型很多,包括string(字符串),list(链表),set(集合),zset(有序集合),hash(哈希)。比如,我们插入一条数据,如下: 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。import redis import datetime class Database: def __init__(self): self.host = "localhost" self.port = 6379 self.write_pool = {} def add_write(self,website,city,year,month,day,deal_number): key = "_".join([website,city,str(year),str(month),str(day)]) val = deal_number self.write_pool[key] = val def batch_write(self): try: r = redis.StrictRedis(host=self.host,port=self.port) r.mset(self.write_pool) except Exception, exception: print exception def add_data(): beg = datetime.datetime.now() db = Database() for i in range(1,10000): db.add_write("meituan","beijing",2013,i,1,i) db.batch_write() end = datetime.datetime.now() print end-beg if __name__ == "__main__": add_data() Ubuntu 14.04下Redis安装及简单测试 http://www.linuxidc.com/Linux/2014-05/101544.htmRedis集群明细文档 http://www.linuxidc.com/Linux/2013-09/90118.htmUbuntu 12.10下安装Redis(图文详解)+ Jedis连接Redis http://www.linuxidc.com/Linux/2013-06/85816.htmRedis系列-安装部署维护篇 http://www.linuxidc.com/Linux/2012-12/75627.htmCentOS 6.3安装Redis http://www.linuxidc.com/Linux/2012-12/75314.htmRedis安装部署学习笔记 http://www.linuxidc.com/Linux/2014-07/104306.htmRedis配置文件redis.conf 详解 http://www.linuxidc.com/Linux/2013-11/92524.htmRedis 的详细介绍 :请点这里 Redis 的下载地址 :请点这里本文永久更新链接地址
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