String字符串类型

1. 字符串基本操作

127.0.0.1:6379> set name yorick # 设置值OK127.0.0.1:6379> get name # 获取值"yorick"127.0.0.1:6379> keys * # 获取全部key1) "name"127.0.0.1:6379> exists name # 判断name是否存在(integer) 1127.0.0.1:6379> append name "_jun" # 追加字符串，若当前key不存在则相当于set key(integer) 10127.0.0.1:6379> get name"yorick_jun"127.0.0.1:6379> strlen name # 获取字符串长度(integer) 10127.0.0.1:6379> append name2 "tom"(integer) 3127.0.0.1:6379> get name2"tom"

2. 字符串自增自减操作

127.0.0.1:6379> set index 0 # 设置初始值OK127.0.0.1:6379> get index"0"127.0.0.1:6379> incr index # 自增1(integer) 1127.0.0.1:6379> incr index(integer) 2127.0.0.1:6379> get index"2"127.0.0.1:6379> decr index # 自减1(integer) 1127.0.0.1:6379> decr index(integer) 0127.0.0.1:6379> get index"0"127.0.0.1:6379> incrby index 3 # 增3(integer) 3127.0.0.1:6379> decrby index 2 # 减2(integer) 1127.0.0.1:6379> get index"1"

3. 截取和替换字符串

127.0.0.1:6379> set sentence "hello world"OK127.0.0.1:6379> get sentence"hello world"127.0.0.1:6379> getrange sentence 0 4 # 截取字符串 [0,4]"hello"127.0.0.1:6379> getrange sentence 0 -1 # 获取全部字符串 等同于 get key"hello world"127.0.0.1:6379> setrange sentence 6 XX # 替换从6开始的2两个字符为XX(integer) 11127.0.0.1:6379> get sentence"hello XXrld"

4. 设置带过期时间的字符串和不存在设置

127.0.0.1:6379> setex name 10 "yorick" # 设置带过期时间的字符串，表示name 10秒后过期OK127.0.0.1:6379> ttl name(integer) 7127.0.0.1:6379> get name"yorick"127.0.0.1:6379> get name # 已过期(nil)127.0.0.1:6379> setnx nosql "redis" # 如果nosql不存在，则创建(integer) 1127.0.0.1:6379> get nosql"redis"127.0.0.1:6379> setnx nosql "mongodb" # nosql字段存在，则创建失败(integer) 0

5. 批量set和get操作

127.0.0.1:6379> mset key1 value1 key2 value2 key3 value3 # 批量设置多个值OK127.0.0.1:6379> mget key1 key2 key3 # 批量获取多个值1) "value1"2) "value2"3) "value3"127.0.0.1:6379> msetnx key1 newvalue1 key4 newvalue4 # 原子操作，若失败则一起失败(integer) 0127.0.0.1:6379> get key4(nil)

6. 使用Redis保存对象的两种方式

127.0.0.1:6379> set user:1 {name:yorick,age:23} # 方式一OK127.0.0.1:6379> get user:1"{name:yorick,age:23}"127.0.0.1:6379> mset user:1:name tom user:1:age 22 # 方式二OK127.0.0.1:6379> mget user:1:name user:1:age1) "tom"2) "22"127.0.0.1:6379> keys *1) "user:1:age"2) "user:1:name"3) "user:1"

7. getset同步操作

127.0.0.1:6379> getset nosql "redis"(nil)127.0.0.1:6379> get nosql"redis"127.0.0.1:6379> getset nosql "mongodb""redis"127.0.0.1:6379> get nosql"mongodb"

List列表类型

1. 两侧添加、删除元素、获取list列表中的元素、获取指定下标元素、获取长度、移除指定元素的相关操作

127.0.0.1:6379> lpush list one # 向列表左边插入值(integer) 1127.0.0.1:6379> lpush list two(integer) 2127.0.0.1:6379> lpush list three(integer) 3127.0.0.1:6379> lrange list 0 -1 # 获取列表中的全部值1) "three"2) "two"3) "one"127.0.0.1:6379> lrange list 0 1 # 获取列表指定范围的值1) "three"2) "two"127.0.0.1:6379> rpush list four # 向列表右边插入值(integer) 4127.0.0.1:6379> lrange list 0 -11) "three"2) "two"3) "one"4) "four"127.0.0.1:6379> lpop list # 左边弹出值"three"127.0.0.1:6379> rpop list # 右边弹出值"four"127.0.0.1:6379> lrange list 0 -11) "two"2) "one"127.0.0.1:6379> lindex list 1 # 通过下标获取值"one"127.0.0.1:6379> lindex list 0"two"127.0.0.1:6379> llen list # 获取列表的长度(integer) 2127.0.0.1:6379> lpush list three(integer) 3127.0.0.1:6379> lpush list three(integer) 4127.0.0.1:6379> lrem list 1 one # 移除指定个数的精确值(integer) 1127.0.0.1:6379> lrange list 0 -11) "three"2) "three"3) "two"127.0.0.1:6379> lrem list 2 three(integer) 2127.0.0.1:6379> lrange list 0 -11) "two"

2. 截取元素操作

127.0.0.1:6379> rpush list one(integer) 1127.0.0.1:6379> rpush list two(integer) 2127.0.0.1:6379> rpush list three(integer) 3127.0.0.1:6379> lrange list 0 -11) "one"2) "two"3) "three"127.0.0.1:6379> ltrim list 1 2 # 通过下标截取指定长度的元素OK127.0.0.1:6379> lrange list 0 -11) "two"2) "three"

3. 移除列表中最后一个元素并加入到新列表的操作

127.0.0.1:6379> rpush list one(integer) 1127.0.0.1:6379> rpush list two(integer) 2127.0.0.1:6379> rpush list three(integer) 3127.0.0.1:6379> rpoplpush list newlist # 移除列表中最后一个元素并加入到新列表"three"127.0.0.1:6379> lrange list 0 -11) "one"2) "two"127.0.0.1:6379> lrange newlist 0 -11) "three"

4. 判断列表是否存在、向列表的指定下标处替换为另一个值

127.0.0.1:6379> exists list # 查看列表是否存在(integer) 0127.0.0.1:6379> lpush list yorick(integer) 1127.0.0.1:6379> exists list (integer) 1127.0.0.1:6379> lset list 0 jun # 向索引为0处替换值OK127.0.0.1:6379> lset list 1 jun # 由于索引1处没有值，所以替换失败(error) ERR index out of range127.0.0.1:6379> lrange list 0 -11) "jun"

5. 插入值的操作

127.0.0.1:6379> rpush list hello(integer) 1127.0.0.1:6379> rpush list jun(integer) 2127.0.0.1:6379> linsert list before jun yorick # 向jun的前面插入元素(integer) 3127.0.0.1:6379> lrange list 0 -11) "hello"2) "yorick"3) "jun"127.0.0.1:6379> linsert list after hello world # 向hello的后面插入元素(integer) 4127.0.0.1:6379> lrange list 0 -11) "hello"2) "world"3) "yorick"4) "jun"

Set集合类型

1. 添加、查看、判断是否包含元素、查看集合元素个数、移除指定元素的相关操作

127.0.0.1:6379> sadd set hello # 向集合中添加元素(integer) 1127.0.0.1:6379> sadd set yorick(integer) 1127.0.0.1:6379> smembers set # 查看集合中的元素1) "yorick"2) "hello"127.0.0.1:6379> sismember set hello # 判断集合中是否包含指定元素(integer) 1127.0.0.1:6379> sismember set world(integer) 0127.0.0.1:6379> scard set # 查看集合元素个数(integer) 2127.0.0.1:6379> sadd set hello # 无法添加相同的元素(integer) 0127.0.0.1:6379> sadd set world(integer) 1127.0.0.1:6379> scard set(integer) 3127.0.0.1:6379> srem set hello # 移除指定元素(integer) 1127.0.0.1:6379> scard set(integer) 2127.0.0.1:6379> smembers set1) "world"2) "yorick"

2. 抽选元素、随机移除元素的操作

127.0.0.1:6379> sadd set one(integer) 1127.0.0.1:6379> sadd set two(integer) 1127.0.0.1:6379> sadd set three(integer) 1127.0.0.1:6379> sadd set four(integer) 1127.0.0.1:6379> smembers set 1) "one"2) "two"3) "four"4) "three"127.0.0.1:6379> srandmember set # 随机抽选一个元素"two"127.0.0.1:6379> srandmember set"two"127.0.0.1:6379> srandmember set"one"127.0.0.1:6379> srandmember set 2 # 随机抽选指定个数的元素1) "one"2) "two"127.0.0.1:6379> spop set # 随机移除元素"one"127.0.0.1:6379> spop set"two"127.0.0.1:6379> spop set"three"127.0.0.1:6379> smembers set1) "four"

3. 移动指定元素的操作

127.0.0.1:6379> sadd set1 hello(integer) 1127.0.0.1:6379> sadd set1 world(integer) 1127.0.0.1:6379> sadd set2 yorick(integer) 1127.0.0.1:6379> smove set1 set2 world # 将set1中的world元素移动到set2中(integer) 1127.0.0.1:6379> smembers set11) "hello"127.0.0.1:6379> smembers set21) "world"2) "yorick"

4. 数学集合的操作

127.0.0.1:6379> sadd set1 a(integer) 1127.0.0.1:6379> sadd set1 b(integer) 1127.0.0.1:6379> sadd set1 c(integer) 1127.0.0.1:6379> sadd set2 c(integer) 1127.0.0.1:6379> sadd set2 d(integer) 1127.0.0.1:6379> sadd set2 e(integer) 1127.0.0.1:6379> sdiff set1 set2 # 差集1) "a"2) "b"127.0.0.1:6379> sinter set1 set2 # 交集1) "c"127.0.0.1:6379> sunion set1 set2 # 并集1) "c"2) "b"3) "e"4) "a"5) "d"

Hash哈希类型

1. 添加、获取、删除、获取长度、的操作

127.0.0.1:6379> hset myhash name yorick # set一个具体的k-v对(integer) 1127.0.0.1:6379> hget myhash name # 获取一个字段值"yorick"127.0.0.1:6379> hmset myhash name tom age 23 # set多个k-v对OK127.0.0.1:6379> hmget myhash name age # 获取多个字段值1) "tom"2) "23"127.0.0.1:6379> hgetall myhash # 获取全部字段值1) "name"2) "tom"3) "age"4) "23"127.0.0.1:6379> hdel myhash age # 删除指定字段(integer) 1127.0.0.1:6379> hgetall myhash1) "name"2) "tom"127.0.0.1:6379> hlen myhash # 获取hash表字段数量(integer) 1127.0.0.1:6379> hexists myhash name # 判断hash表是否有指定字段(integer) 1127.0.0.1:6379> hexists myhash age(integer) 0

2. 只获取键或值、自增、若没有则添加的操作

127.0.0.1:6379> hmset myhash name yorick age 23OK127.0.0.1:6379> hkeys myhash # 获取全部键1) "name"2) "age"127.0.0.1:6379> hvals myhash # 获取全部值1) "yorick"2) "23"127.0.0.1:6379> hincrby myhash age 2 # 自增指定值(integer) 25127.0.0.1:6379> hincrby myhash age -2(integer) 23127.0.0.1:6379> hsetnx myhash address beijing # 若没有则添加(integer) 1127.0.0.1:6379> hsetnx myhash address tianjing(integer) 0127.0.0.1:6379> hkeys myhash1) "name"2) "age"3) "address"

Zset有序集合类型

1. 添加、查看的操作

127.0.0.1:6379> zadd myset 1 one # 添加1个值(integer) 1127.0.0.1:6379> zadd myset 2 two 3 three # 添加多个值(integer) 2127.0.0.1:6379> zrange myset 0 -1 # 查看元素1) "one"2) "two"3) "three"

2. 排序、删除、获取元素个数、指定区间元素个数的操作

127.0.0.1:6379> zadd myset 1000 tom(integer) 1127.0.0.1:6379> zadd myset 500 jerry(integer) 1127.0.0.1:6379> zadd myset 1500 yorick(integer) 1127.0.0.1:6379> zrangebyscore myset -inf +inf # 升序排序显示所有元素1) "jerry"2) "tom"3) "yorick"127.0.0.1:6379> zrangebyscore myset -inf +inf withscores # 升序排序，并显示scores1) "jerry"2) "500"3) "tom"4) "1000"5) "yorick"6) "1500"127.0.0.1:6379> zrangebyscore myset -inf 1000 withscores # 升序排序，显示不超过10001) "jerry"2) "500"3) "tom"4) "1000"127.0.0.1:6379> zrange myset 0 -11) "jerry"2) "tom"3) "yorick"127.0.0.1:6379> zrem myset tom  # 删除tom元素(integer) 1127.0.0.1:6379> zrange myset 0 -11) "jerry"2) "yorick"127.0.0.1:6379> zcard myset # 获取集合元素个数(integer) 2127.0.0.1:6379> zcount myset 500 1000 # 获取score在[500，1000]的元素(integer) 1127.0.0.1:6379> zcount myset 500 1500(integer) 2

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