Redis相关操作

2022/4/19 19:12:32

编程Tag： 操作 Redis integer 相关 Jedis 192.168 6379 1.103 Aang

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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 *

"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

"v1"

"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

"Aang"

"12"

"male"
192.168.1.103:6379> hgetall Aang

"name"

"Aang"

"age"

"12"

"gender"

"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

"name"

"age"

"gender"
192.168.1.103:6379> hvals Aang

"Aang"

"12"

"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(s"key: ${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

"3"

"2"

"1"

"a"

"b"

"c"
192.168.1.103:6379> lrange lst1 1 3

"2"

"1"

"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

"2"

"1"

"a"

"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

"a"

"5"

"3"

"1"

"c"

"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"
192.168.1.103:6379> sinter s1 s2

"2"

"3"
192.168.1.103:6379> sunion s1 s2

"1"

"2"

"3"

"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

"Sokka"

"Katara"

"Aang"
192.168.1.103:6379> zrange z1 0 -1 withscores

"Sokka"

"75"

"Katara"

"85"

"Aang"

"90"
192.168.1.103:6379> zrevrange z1 0 -1

"Aang"

"Katara"

"Sokka"

增减score

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

"Sokka"

"75"

"Aang"

"90"

"Katara"

"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)
  }
}

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Redis相关操作

String数据类型

命令行

API

Hash数据类型

命令行

API

List数据类型

命令行

API

Set数据类型

命令行

API

ZSet数据类型

命令行

API

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