Use of Redis

What is Redis?

Redis is an open source API that is written in ANSI C, supports the web, can be persisted in memory, key-value databases, and provides multiple languages. Redis is a key-value storage system. Similar to memcached, it supports storing more value types, including string (string), list (linked list), set (set), Zset (sorted set-ordered collection), and hash (hash type).　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　These data types support Push/pop, Add/remove, and intersection-set and difference sets, and richer operations, and these operations are atomic. --a summary of Baidu Encyclopedia

Redis installation (Linux)

Cd/usr/local

wget http://download.redis.io/releases/redis-3.0.7.tar.gz get Redis installation package

Tar xvf redis-3.0.7.tar.gz

CD redis-3.0.7

Make

Make && Install

Redis Common Commands

Redis-server redis.conf # #启动redis

REDIS-CLI # #进入redis客户端 (no password status) | Redis-cli-a YourPassword # #进入redis客户端 (with password status)

REDIS-CLI Shutdown # #停止redis服务

Redis Basic Operations

Keys * # #查看redis中存在的所有的键

Set Word HelloWorld # #向redis中插入键值对数据, key is word, value is HelloWorld

Get word # #根据键取值 with a result of HelloWorld

exists Word # #查看键是否存在

Del Word # #删除当前key

Expire Word # #为相应的键设置过期时间

Persist Word # #移除当前key的过期时间

Randomkey # #随机返回一个key

Type DataList # #返回值得数据类型

Lpush DataList Redis # #向redis插入数据redis到集合头部 (left)

Rpush DataList org # #向redis插入数据org到集合尾部 (right)

Lrange DataList 0 4 # #查询集合中的索引为0-4 Data Flashall # #清空所有数据

For more information, please see the official Redis documentation

How Redis is used in Java: Spring-redis integration

The use of Redis is first written here.

Use of Redis