Redis相关操作

String数据类型

命令行

  • 创建获取增减

192.168.1.103:6379> set online-users 50
OK
192.168.1.103:6379> set online-users 100
OK

192.168.1.103:6379> keys *

  1. online-users

192.168.1.103:6379> get online-users
100

192.168.1.103:6379> incr online-users
(integer) 101
192.168.1.103:6379> decr online-users
(integer) 100

192.168.1.103:6379> incrby online-users 50
(integer) 150
192.168.1.103:6379> incrby online-users -30
(integer) 120
192.168.1.103:6379> decrby online-users -30
(integer) 150

  • 获取value长度

192.168.1.103:6379> strlen online-users
(integer) 3

  • 设置超时时间

192.168.1.103:6379> set 18301581288 3545 ex 300
OK

  • 创建获取删除多个kv

192.168.1.103:6379> mset k1 v1 k2 v2
OK

192.168.1.103:6379> mget k1 k2

  1. v1
  2. v2

192.168.1.103:6379> del k1 k2
(integer) 2

API

import redis.clients.jedis.Jedis  object StringValue {   def main(args: Array[String]): Unit = {      val jedis: Jedis = new Jedis(192.168.1.103, 6379)     jedis.auth(root)     // 选择使用的database, 公有16个, 默认使用0号database //    jedis.select(0)      jedis.set(online-users, 100)     val r1 = jedis.get(online-users)     println(r1)      jedis.incrBy(online-users, 50)     val r2 = jedis.get(online-users)     println(r2)            jedis.del(online-users)   } }

Hash数据类型

命令行

  • 创建获取

192.168.1.103:6379> hset Aang age 12
(integer) 1
192.168.1.103:6379> hget Aang age
12

  • 增减

192.168.1.103:6379> hincrby Aang age 3
(integer) 15

  • 删除value中的key

192.168.1.103:6379> hdel Aang age
(integer) 1

  • 删除key

192.168.1.103:6379> del Aang
(integer) 0

  • 创建获取多个

192.168.1.103:6379> hmset Aang name Aang age 12 gender male
OK
192.168.1.103:6379> hmget Aang name age gender

  1. Aang
  2. 12
  3. male
    192.168.1.103:6379> hgetall Aang
  4. name
  5. Aang
  6. age
  7. 12
  8. gender
  9. male
  • 判断字段是否存在

192.168.1.103:6379> hexists Aang name
(integer) 1
192.168.1.103:6379> hexists Aang grade
(integer) 0

  • 只获取keys或values

192.168.1.103:6379> hkeys Aang

  1. name
  2. age
  3. gender
    192.168.1.103:6379> hvals Aang
  4. Aang
  5. 12
  6. male
  • 获取长度

192.168.1.103:6379> hlen Aang
(integer) 3

API

import java.util  import redis.clients.jedis.Jedis  object HashValue {   def main(args: Array[String]): Unit = {      val jedis: Jedis = new Jedis(192.168.1.103, 6379)     jedis.auth(root)      jedis.hset(sichuan, chengdu, 1000)     jedis.hset(sichuan, yaan, 1000)      jedis.hincrByFloat(sichuan, yaan, 500.5)      val str: String = jedis.hget(sichuan, yaan)     println(str)      val all: util.Map[String, String] = jedis.hgetAll(sichuan)      // jeids由java编写, 取出的是java集合     import scala.collection.JavaConversions._     for(t <- all){       println(skey: ${t._1} -> value: ${t._2})     }      jedis.hdel(sichuan, yaan)            jedis.del(sichuan)   } }

List数据类型

命令行

  • 插入数据

192.168.1.103:6379> lpush lst1 1 2 3
(integer) 3
192.168.1.103:6379> rpush lst1 a b c
(integer) 6

  • 获取数据

192.168.1.103:6379> lrange lst1 0 -1

  1. 3
  2. 2
  3. 1
  4. a
  5. b
  6. c
    192.168.1.103:6379> lrange lst1 1 3
  7. 2
  8. 1
  9. a
  • 弹出 (删除) 数据

192.168.1.103:6379> lpop lst1
3
192.168.1.103:6379> rpop lst1
c
192.168.1.103:6379> lrange lst1 0 -1

  1. 2
  2. 1
  3. a
  4. b
  • 获取长度

192.168.1.103:6379> llen lst1
(integer) 4

API

import java.util  import redis.clients.jedis.Jedis  object ListValue {   def main(args: Array[String]): Unit = {      val jedis: Jedis = new Jedis(192.168.1.103, 6379)     jedis.auth(root)      jedis.lpush(lst1, 1, 2, 3)     jedis.rpush(lst1, a, b, c)      jedis.lpop(lst1)     jedis.rpop(lst1)      val strings: util.List[String] = jedis.lrange(lst1, 0, -1)      import scala.collection.JavaConversions._     for(s <- strings){       println(s)     }   } }

Set数据类型

命令行

  • 创建

192.168.1.103:6379> sadd s1 1 3 3 5 a b c
(integer) 6

  • 获取

192.168.1.103:6379> smembers s1

  1. a
  2. 5
  3. 3
  4. 1
  5. c
  6. b
  • 删除

192.168.1.103:6379> srem s1 3
(integer) 1

  • 判断是否存在

192.168.1.103:6379> sismember s1 3
(integer) 0
192.168.1.103:6379> sismember s1 5
(integer) 1

  • 差集, 交集, 并集

192.168.1.103:6379> sadd s1 1 2 3
(integer) 3
192.168.1.103:6379> sadd s2 2 3 4
(integer) 3
192.168.1.103:6379> sdiff s1 s2

  1. 1
    192.168.1.103:6379> sinter s1 s2
  2. 2
  3. 3
    192.168.1.103:6379> sunion s1 s2
  4. 1
  5. 2
  6. 3
  7. 4

API

import java.util  import redis.clients.jedis.Jedis  object SetValue {   def main(args: Array[String]): Unit = {      val jedis: Jedis = new Jedis(192.168.1.103, 6379)     jedis.auth(root)      jedis.sadd(s1, 1, 2, 3, 3, 5)       jedis.srem(s1, 2)      val boolean = jedis.sismember(s1, 2)     println(boolean)      val strings: util.Set[String] = jedis.smembers(s1)      import scala.collection.JavaConversions._     for(s <- strings){       println(s)     }   } }

ZSet数据类型

命令行

  • 创建获取

192.168.1.103:6379> zadd z1 90 Aang 85 Katara 75 Sokka
(integer) 3
192.168.1.103:6379> zrange z1 0 -1

  1. Sokka
  2. Katara
  3. Aang
    192.168.1.103:6379> zrange z1 0 -1 withscores
  4. Sokka
  5. 75
  6. Katara
  7. 85
  8. Aang
  9. 90
    192.168.1.103:6379> zrevrange z1 0 -1
  10. Aang
  11. Katara
  12. Sokka
  • 增减score

192.168.1.103:6379> zincrby z1 10 Katara
95
192.168.1.103:6379> zrange z1 0 -1 withscores

  1. Sokka
  2. 75
  3. Aang
  4. 90
  5. Katara
  6. 95
  • 获取元素排名

192.168.1.103:6379> zrank z1 Katara
(integer) 2

192.168.1.103:6379> zrevrank z1 Katara
(integer) 0

API

import java.{lang, util}  import redis.clients.jedis.{Jedis, Tuple}  object ZSetValue {   def main(args: Array[String]): Unit = {      val jedis: Jedis = new Jedis(192.168.1.103, 6379)     jedis.auth(root)      jedis.zadd(z1, 90, Aang)     jedis.zadd(z1, 85, Katara)     jedis.zadd(z1, 75, Sokka)      jedis.zincrby(z1, 10, Katara)       val tuples: util.Set[Tuple] = jedis.zrangeWithScores(z1, 0, -1)      import scala.collection.JavaConversions._     for(t <- tuples){       println(t)     }      val long: lang.Long = jedis.zrank(z1, Katara)     println(long)   } }