Redis配置手册

2.1 Redis服务基本操作

1. 连接到Redis Server (1) 本地连接 [root@node1 ]# redis-cli -a password (2) 远程连接 [root@node1 ~]# redis-cli -h node1.1000cc.net -a password (3) 退出 127.0.0.1:6379>quit (4) 连入再认证 [root@node1 ~]# redis-cli 127.0.0.1:6379> auth password OK (5) 连入至指定数据库 [root@node1 ~]# redis-cli -a password -n 1 127.0.0.1:6379[1]> (6) 切换至ID 2的数据库 127.0.0.1:6379[1]> select 2 OK 127.0.0.1:6379[2]> (7) 查看Redis状态 127.0.0.1:6379[1]> info # Server redis_version:3.2.12 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:7897e7d0e13773f redis_mode:standalone os:Linux 3.10.0-1062.el7.x86_64 x86_64 ...... ...... (8) 显示连接的客户端信息 127.0.0.1:6379> client list id=8 addr=127.0.0.1:47000 fd=5 name= age=62 idle=0 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=0 qbuf-free=32768 obl=0 oll=0 omem=0 events=r cmd=client (9) 断开客户端的连接 127.0.0.1:6379> client kill 192.168.10.12:43668 OK (10) 转储所有的请求 127.0.0.1:6379> monitor OK 1469078099.850114 [0 10.0.0.31:43666] "get" "key01" 1469078112.319154 [0 10.0.0.31:43666] "set" "key02" "value02" ..... ..... (11) 保存数据至磁盘 127.0.0.1:6379> save OK (12) 后台保存数据至磁盘 127.0.0.1:6379> bgsave OK (13) 获取上次保存到磁盘的UNIX时间戳 127.0.0.1:6379> lastsave (integer) 1580544310 (14) 保存数据至磁盘并关闭redis 127.0.0.1:6379> shutdown not connected> quit

2.2 Key/value基本操作

(1) 给key设定value [root@node1 ~]# redis-cli -a password 127.0.0.1:6379> set key1 value1 OK (2) 获取key及其value 127.0.0.1:6379> get key1 "value1" (3) 删除指定key 127.0.0.1:6379> del key1 (integer) 1 (4) 检测key是否存在 127.0.0.1:6379> exists key01 (integer) 0 # 不存在 127.0.0.1:6379> exists key1 (integer) 1 # 存在 (5) 建立新key并赋予值，如key存在则放弃赋值 127.0.0.1:6379> setnx key2 value2 # 不存在key2 (integer) 1 127.0.0.1:6379> get key2 "value2" 127.0.0.1:6379> setnx key1 value2 # key1已存在 (integer) 0 127.0.0.1:6379> get key1 "value1" (6) 设置key有效期为60s 127.0.0.1:6379> setex key3 60 vlaue3 OK (7) 设置现有key有效期为30s 127.0.0.1:6379> expire key1 30 (integer) 1 (8) 为现有key追加值 127.0.0.1:6379> append key1 value12 (integer) 12 (9) 获取指定字符串范围 语法: substr [Key] [起始字符位置] [结束获取的字符位置] 127.0.0.1:6379> substr key1 0 3 "valu" (10) 增量 127.0.0.1:6379> set key2 2 OK 127.0.0.1:6379> incr key2 (integer) 3 (11) 增量指定值 127.0.0.1:6379> incrby key2 100 (integer) 3 (12) 递减 127.0.0.1:6379> decr key2 (integer) 102 (13) 递减指定值 127.0.0.1:6379> decrby key2 50 (integer) 52 (14) 同时设定多个Key/value 127.0.0.1:6379> mset key01 value01 key02 value02 key03 value03 OK (15) 获取多个Key及其值value 127.0.0.1:6379> mget key01 key02 key03 1) "value01" 2) "value02" 3) "value03" (16) 更改key名(如果重命名的key名称存在，则不可执行此命令) 127.0.0.1:6379> rename key01 key100 OK 127.0.0.1:6379> mget key01 key100 1) (nil) 2) "value01" (17) 查看当前所在数据库的key数量 127.0.0.1:6379> dbsize (integer) 5 (18) 移动一个key至指定数据库中 127.0.0.1:6379> move key03 1 (integer) 1 127.0.0.1:6379> select 1 OK 127.0.0.1:6379[1]> get key03 "value03" (19) 删除当前数据库中所有key 127.0.0.1:6379> flushdb OK (20) 删除所有数据库中所有key 127.0.0.1:6379> flushall OK 127.0.0.1:6379> quit (21) 从标准输出中读取数据并给与key为其值 [root@node1 ~]# echo 'test_words' | redis-cli -a password -x set key209 OK [root@node1 ~]# redis-cli -a password get key209 "test_words\n"

2.3 Lists基本操作

(1) 将预设值加入至list01中 127.0.0.1:6379> lpush list01 value01 (integer) 1 (2) 追加一个值加入至list01中 127.0.0.1:6379> rpush list01 value02 (integer) 2 (3) 获取列表长度 127.0.0.1:6379> llen list01 (integer) 2 (4) 获取指定列表中的元素 127.0.0.1:6379> lindex list01 0 "value01" (5) 获取指定列表中的元素范围 127.0.0.1:6379> lrange list01 0 1 1) "value01" 2) "value02" (6) 变更指定元素中的值 127.0.0.1:6379> lset list01 1 value03 OK 127.0.0.1:6379> lindex list01 1 "value03" (7) 获取头部元素并移除 127.0.0.1:6379> lpop list01 "value01" (8) 获取最后的元素并移除 127.0.0.1:6379> rpop list01 "value03" (9)修剪指定元素范围 127.0.0.1:6379> ltrim list01 1 3 OK 127.0.0.1:6379> lrange list01 0 7 1) "value01" 2) "test" 3) "value02" 4) "value03" 5) "value04" 6) "test" 7) "value05" 8) "test" (10)移除指定元素编号 127.0.0.1:6379> lrem list02 2 test (integer) 2 127.0.0.1:6379> lrange list02 0 7 1) "value01" 2) "value02" 3) "value03" 4) "value04" 5) "value05" 6) "test"

2.4 Hash表基本操作

(1)为hash key设定其值 127.0.0.1:6379> hset hash01 field01 value01 (integer) 1 (2)获取hash key和值 127.0.0.1:6379> hget hash01 field01 "value01" (3)为hash key设置多个值 127.0.0.1:6379> hmset hash01 field02 value02 field03 value03 OK (4)获取hash多个key值 127.0.0.1:6379> hmget hash01 field01 field02 field03 1) "value01" 2) "value02" 3) "value03" (5)获取hash表中所有字段(key)信息 127.0.0.1:6379> hkeys hash01 1) "field01" 2) "field02" 3) "field03" (6)获取哈希表字段的所有值 127.0.0.1:6379> hvals hash01 1) "value01" 2) "value02" 3) "value03" (7)获取hash表中所有字段信息及vaule信息 127.0.0.1:6379> hgetall hash01 1) "field01" 2) "value01" 3) "field02" 4) "value02" 5) "field03" 6) "value03" (8)增量hash表中所有字段及值 127.0.0.1:6379> hincrby hash01 field04 100 (integer) 101 (9)确认hash表中的字段是否存在 127.0.0.1:6379> hexists hash01 field01 (integer) 1 (10)获取hash表中的字段数 127.0.0.1:6379> hlen hash01 (integer) 4 (11)移除hash指定的字段 127.0.0.1:6379> hdel hash01 field04 (integer) 1

2.5 Sets表基本操作

(1)将member01加入至set01的集合中 127.0.0.1:6379> sadd set01 member01 (integer) 1 (2)获取集合set01的成员数量 127.0.0.1:6379> scard set01 (integer) 1 (3)将member01从set01中移除 127.0.0.1:6379> srem set01 member03 (integer) 1 (4)确认member01是否存在于set01中 127.0.0.1:6379> sismember set01 member01 (integer) 1 (5)获取集合中所有成员 127.0.0.1:6379> smembers set01 1) "member03" 2) "member02" 3) "member01" 127.0.0.1:6379> smembers set02 1) "member02" 2) "member05" 3) "member04" 127.0.0.1:6379> smembers set03 1) "member06" 2) "member02" 3) "member01" (6)获取集合中都存在的成员(交集成员) 127.0.0.1:6379> sinter set01 set02 set03 1) "member02" (7)获取集合中都存在的成员(交集成员)并存储到第一个集合中 127.0.0.1:6379> sinterstore set04 set01 set02 set03 (integer) 1 127.0.0.1:6379> smembers set04 1) "member02" (8)获取集合中差异的成员 127.0.0.1:6379> sdiff set01 set02 set03 1) "member03" (9)获取集合中差异成员存储到第一个集合中 127.0.0.1:6379> sdiffstore set05 set01 set02 set03 (integer) 1 127.0.0.1:6379> smembers set05 1) "member03" (10)返回给定集合的并集 127.0.0.1:6379> sunion set01 set02 set03 (integer) 1 (11)返回给定集合的并集，并存储到第一个集合中 127.0.0.1:6379> sunionstore set06 set01 set02 set03 (integer) 6 127.0.0.1:6379> smembers set06 1) "member06" 2) "member03" 3) "member04" 4) "member02" 5) "member01" 6) "member05" (11)将成员member03从set01集合中移动到set02集合中 127.0.0.1:6379> smove set01 set02 member03 (integer) 1

3.1 Python支持

[root@node1 ~]# yum --enablerepo=epel install python2-redis -y [root@node1 ~]# vim use-redis.py #!/usr/bin/env python import redis client = redis.StrictRedis(host='127.0.0.1', port=6379, db=0, password='password') client.set("key1", "value1") print "key1.value :", client.get("key1") client.append("key1", ",value2") print "key1.value :", client.get("key1") client.set("key2", 1) client.incr("key2", 200) print "key2.value :", client.get("key2") client.decr("key2", 100) print "key2.value :", client.get("key2") client.lpush("list1", "value1", "value2", "value3") print "list1.value :", client.lrange("list1", "0", "2") client.hmset("hash1", {"key1": "value1", "key2": "value2", "key3": "value3"}) print "hash1.value :", client.hmget("hash1", ["key1", "key2", "key3"]) client.sadd("set1", "member1", "member2", "member3") print "set01.value :", client.smembers("set1") [root@node1 ~]# python use-redis.py key1.value : value1 key1.value : value1,value2 key2.value : 201 key2.value : 101 list1.value : ['value3', 'value2', 'value1'] hash1.value : ['value1', 'value2', 'value3'] set01.value : set(['member1', 'member3', 'member2'])

3.2 PHP支持

[root@node1 ~]# yum --enablerepo=epel install php-pecl-redis -y [root@node1 ~]# vim use-php.php <?php $redis = new Redis(); $redis->connect("127.0.0.1",6379); $redis->auth("password"); $redis->set('key1', 'value1'); print 'key1.value : ' . $redis->get('key1') . "\n"; $redis->append('key1', ',value2'); print 'key1.value : ' . $redis->get('key1') . "\n"; $redis->set('key2', 1); print 'key2.value : ' . $redis->get('key2') . "\n"; $redis->incr('key2', 100); print 'key2.value : ' . $redis->get('key2') . "\n"; $redis->decr('key2', 51); print 'key2.value : ' . $redis->get('key2') . "\n"; $redis->lPush('list1', 'value1'); $redis->rPush('list1', 'value2'); print 'list1.value : '; print_r ($redis->lRange('list1', 0, -1)); $redis->hSet('hash1', 'key1', 'value1'); $redis->hSet('hash1', 'key2', 'value2'); print 'hash1.value : '; print_r ($redis->hGetAll('hash1')); $redis->sAdd('set1', 'member1'); $redis->sAdd('set1', 'member2'); print 'set1.value : '; print_r ($redis->sMembers('set1')); ?> [root@node1 ~]# php use-php.php key1.value : value1 key1.value : value1,value2 key2.value : 1 key2.value : 101 key2.value : 50 list1.value : Array ( [0] => value1 [1] => value1 [2] => value3 [3] => value2 [4] => value1 [5] => value3 [6] => value2 [7] => value1 [8] => value2 [9] => value2 ) hash1.value : Array ( [key3] => value3 [key2] => value2 [key1] => value1 ) set1.value : Array ( [0] => member2 [1] => member1 [2] => member3 )

3.2 Node.js支持

1) 安装Scl源 [root@node1 ~]# yum install yum-plugin-priorities -y [root@node1 ~]# yum install centos-release-scl-rh centos-release-scl -y [root@node1 ~]# sed -i -e "s/\]$/\]\npriority=10/g" /etc/yum.repos.d/CentOS-SCLo-scl.repo [root@node1 ~]# sed -i -e "s/\]$/\]\npriority=10/g" /etc/yum.repos.d/CentOS-SCLo-scl-rh.repo [root@node1 ~]# sed -i -e "s/enabled=1/enabled=0/g" /etc/yum.repos.d/CentOS-SCLo-scl.repo [root@node1 ~]# sed -i -e "s/enabled=1/enabled=0/g" /etc/yum.repos.d/CentOS-SCLo-scl-rh.repo 2) 安装及配置Node.js [root@node1 ~]# yum --enablerepo=centos-sclo-rh install rh-nodejs12 -y [root@node1 ~]# scl enable rh-nodejs12 bash [root@node1 ~]# vi /etc/profile.d/rh-nodejs12.sh source /opt/rh/rh-nodejs12/enable export X_SCLS="`scl enable rh-nodejs12 'echo $X_SCLS'`" 3) 安装及配置npm [root@node1 ~]# yum --enablerepo=epel install npm -y [root@node1 ~]# npm init This utility will walk you through creating a package.json file. It only covers the most common items, and tries to guess sensible defaults. See `npm help json` for definitive documentation on these fields and exactly what they do. Use `npm install <pkg>` afterwards to install a package and save it as a dependency in the package.json file. Press ^C at any time to quit. package name: (root) # 本次实验不对npm做任何配置,直接回车 version: (1.0.0) # 回车 description: # 回车 git repository: # 回车 keywords: # 回车 author: # 回车 license: (ISC) # 回车 About to write to /root/package.json: { "name": "root", "version": "1.0.0", "main": "index.js", "scripts": { "test": "echo \"Error: no test specified\" && exit 1" }, "author": "", "license": "ISC", "dependencies": { "redis": "^2.8.0" }, "devDependencies": {}, "description": "" } Is this OK? (yes) # 回车 4) 安装redis client模块 [root@node1 ~]# npm install redis var redis = require('redis'); var client = new redis.createClient(); client.auth('password'); 5) 创建测试文件 [root@node1 ~]# vim use_redis.js var redis = require('redis'); var client = new redis.createClient(); client.auth('password');var redis = require('redis'); var client = new redis.createClient(); client.auth('password'); client.set('key01', 'value01'); client.get('key01', function (err, val) { console.log("key01.value :", val); }); client.append('key01', ',value02'); client.get('key01', function (err, val) { console.log("key01.value :", val); }); client.set('key02', 1); client.get('key02', function (err, val) { console.log("key02.value :", val); }); client.incrby('key02', 100); client.get('key02', function (err, val) { console.log("key02.value :", val); }); client.decrby('key02', 51); client.get('key02', function (err, val) { console.log("key02.value :", val); }); client.rpush('list01', 'value01'); client.rpush('list01', 'value02'); client.lrange('list01', 0, -1, function (err, val) { console.log("list01.value :", val); }); client.hset("hash01", "key01", "value01"); client.hset("hash01", "key02", "value02"); client.hgetall('hash01', function (err, val) { console.log("hash01.value :", val); }); client.sadd("set01", "member01"); client.sadd("set01", "member02"); client.smembers('set01', function (err, val) { console.log("set01.value :", val); }); client.set('key01', 'value01'); client.get('key01', function (err, val) { console.log("key01.value :", val); }); client.append('key01', ',value02'); client.get('key01', function (err, val) { console.log("key01.value :", val); }); client.set('key02', 1); client.get('key02', function (err, val) { console.log("key02.value :", val); }); client.incrby('key02', 100); client.get('key02', function (err, val) { console.log("key02.value :", val); }); client.decrby('key02', 51); client.get('key02', function (err, val) { console.log("key02.value :", val); }); client.rpush('list01', 'value01'); client.rpush('list01', 'value02'); client.lrange('list01', 0, -1, function (err, val) { console.log("list01.value :", val); }); client.hset("hash01", "key01", "value01"); client.hset("hash01", "key02", "value02"); client.hgetall('hash01', function (err, val) { console.log("hash01.value :", val); }); client.sadd("set01", "member01"); client.sadd("set01", "member02"); client.smembers('set01', function (err, val) { console.log("set01.value :", val); }); 6) 测试结果 [root@node1 ~]# node use-redis.js key01.value : value01 key01.value : value01,value02 key02.value : 1 key02.value : 101 key02.value : 50 list01.value : [ 'value01', 'value02', 'value01', 'value02' ] hash01.value : { key01: 'value01', key02: 'value02' } set01.value : [ 'member01', 'member02' ] key01.value : value01 key01.value : value01,value02 key02.value : 1 key02.value : 101 key02.value : 50 list01.value : [ 'value01', 'value02', 'value01', 'value02', 'value01', 'value02' ] hash01.value : { key01: 'value01', key02: 'value02' } set01.value : [ 'member01', 'member02' ]