String資料型別

命令列

• 建立獲取增減

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

• 獲取value長度

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

• 設定超時時間

192.168.1.103:6379> set 18301581288 3545 ex 300
OK

• 建立獲取刪除多個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")
    // 選擇使用的database, 公有16個, 預設使用0號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資料型別

命令列

• 建立獲取

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

• 增減

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

• 刪除value中的key

192.168.1.103:6379> hdel Aang age
(integer) 1

• 刪除key

192.168.1.103:6379> del Aang
(integer) 0

• 建立獲取多個

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"

• 判斷欄位是否存在

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

• 只獲取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"

• 獲取長度

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編寫, 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資料型別

命令列

• 插入資料

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

• 獲取資料

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"

• 彈出 (刪除) 資料

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"

• 獲取長度

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資料型別

命令列

• 建立

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

• 獲取

192.168.1.103:6379> smembers s1

1. "a"
2. "5"
3. "3"
4. "1"
5. "c"
6. "b"

• 刪除

192.168.1.103:6379> srem s1 3
(integer) 1

• 判斷是否存在

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

• 差集, 交集, 並集

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資料型別

命令列

• 建立獲取

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"

• 增減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"

• 獲取元素排名

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)
  }
}