參考：https://www.cnblogs.com/pyyu/p/9843950.html redis部落格地址
編譯安裝redis
開始部署
[root@mcw01 ~]$ ls anaconda-ks.cfg mongodb-linux-x86_64-3.2.8.tgz [root@mcw01 ~]$ wget http://download.redis.io/releases/redis-4.0.10.tar.gz --2022-03-05 18:27:02-- http://download.redis.io/releases/redis-4.0.10.tar.gz Resolving download.redis.io (download.redis.io)... 45.60.125.1 Connecting to download.redis.io (download.redis.io)|45.60.125.1|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 1738465 (1.7M) [application/octet-stream] Saving to: ‘redis-4.0.10.tar.gz’ 100%[====================>] 1,738,465 63.4KB/s in 25s 2022-03-05 18:27:27 (68.2 KB/s) - ‘redis-4.0.10.tar.gz’ saved [1738465/1738465] [root@mcw01 ~]$ ls anaconda-ks.cfg mongodb-linux-x86_64-3.2.8.tgz redis-4.0.10.tar.gz [root@mcw01 ~]$ tar xf redis-4.0.10.tar.gz [root@mcw01 ~]$ ls anaconda-ks.cfg mongodb-linux-x86_64-3.2.8.tgz redis-4.0.10 redis-4.0.10.tar.gz [root@mcw01 ~]$ cd redis-4.0.10/ [root@mcw01 ~/redis-4.0.10]$ ls #有makefile檔案，就不需要./configure配置 00-RELEASENOTES COPYING Makefile redis.conf runtest-sentinel tests BUGS deps MANIFESTO runtest sentinel.conf utils CONTRIBUTING INSTALL README.md runtest-cluster src [root@mcw01 ~/redis-4.0.10]$ make
報錯 gcc命令沒有找到：
cd hiredis && make static make[3]: Entering directory `/root/redis-4.0.10/deps/hiredis' gcc -std=c99 -pedantic -c -O3 -fPIC -Wall -W -Wstrict-prototypes -Wwrite-strings -g -ggdb net.c make[3]: gcc: Command not found make[3]: *** [net.o] Error 127 make[3]: Leaving directory `/root/redis-4.0.10/deps/hiredis' make[2]: *** [hiredis] Error 2 make[2]: Leaving directory `/root/redis-4.0.10/deps' make[1]: [persist-settings] Error 2 (ignored) CC adlist.o /bin/sh: cc: command not found make[1]: *** [adlist.o] Error 127 make[1]: Leaving directory `/root/redis-4.0.10/src' make: *** [all] Error 2
#解決編譯安裝所需的依賴環境繼續部署
um install gcc patch libffi-devel python-devel zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel openssl openssl-devel -y 然後重新執行: [root@mcw01 ~/redis-4.0.10]$ make #發現報錯沒有某個目錄或檔案。在這之前編譯失敗了，目錄被改變了部分，所以直接刪除重新解壓，然後make編譯 ...... Hint: It's a good idea to run 'make test' ;) make[1]: Leaving directory `/root/redis-4.0.10/src' [root@mcw01 ~/redis-4.0.10]$ ls 00-RELEASENOTES COPYING Makefile redis.conf runtest-sentinel tests BUGS deps MANIFESTO runtest sentinel.conf utils CONTRIBUTING INSTALL README.md runtest-cluster src [root@mcw01 ~/redis-4.0.10]$ make install cd src && make install make[1]: Entering directory `/root/redis-4.0.10/src' CC Makefile.dep make[1]: Leaving directory `/root/redis-4.0.10/src' make[1]: Entering directory `/root/redis-4.0.10/src' Hint: It's a good idea to run 'make test' ;) INSTALL install INSTALL install INSTALL install INSTALL install INSTALL install make[1]: Leaving directory `/root/redis-4.0.10/src' [root@mcw01 ~/redis-4.0.10]$ [root@mcw01 ~/redis-4.0.10]$ redis-c #當編譯好之後，就可以命令補全，也就是已經配置好環境變數了 redis-check-aof redis-check-rdb redis-cli [root@mcw01 ~/redis-4.0.10]$ [root@mcw01 ~/redis-4.0.10]$ which redis-server #預設編譯安裝到/usr/local下去了 /usr/local/bin/redis-server [root@mcw01 ~/redis-4.0.10]$
redis服務端執行和客戶端連線
[root@mcw01 ~]$ redis-server #安裝好之後，直接執行這個命令 24270:C 05 Mar 18:43:08.857 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo 24270:C 05 Mar 18:43:08.857 # Redis version=4.0.10, bits=64, commit=00000000, modified=0, pid=24270, just started 24270:C 05 Mar 18:43:08.857 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf _._ _.-``__ ''-._ _.-`` `. `_. ''-._ Redis 4.0.10 (00000000/0) 64 bit .-`` .-```. ```\/ _.,_ ''-._ ( ' , .-` | `, ) Running in standalone mode |`-._`-...-` __...-.``-._|'` _.-'| Port: 6379 | `-._ `._ / _.-' | PID: 24270 `-._ `-._ `-./ _.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | http://redis.io `-._ `-._`-.__.-'_.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | `-._ `-._`-.__.-'_.-' _.-' `-._ `-.__.-' _.-' `-._ _.-' `-.__.-' 24270:M 05 Mar 18:43:08.880 # Server initialized 24270:M 05 Mar 18:43:08.880 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect. 24270:M 05 Mar 18:43:08.880 # WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled. 24270:M 05 Mar 18:43:08.880 * Ready to accept connections 客戶端連線： [root@mcw01 ~]$ redis-cli 127.0.0.1 6379 ^C #我再開一個視窗，預設連線的ip 埠 [root@mcw01 ~]$ redis-cli #連上之後，ping命令，返回pong,說明連線成功的 127.0.0.1:6379> ping PONG 127.0.0.1:6379>
redis配置
[root@mcw01 ~]$ ln -s redis-4.0.10 redis [root@mcw01 ~]$ ls anaconda-ks.cfg dump.rdb mongodb-linux-x86_64-3.2.8.tgz redis redis-4.0.10 redis-4.0.10.tar.gz [root@mcw01 ~]$ ls redis 00-RELEASENOTES COPYING Makefile redis.conf runtest-sentinel tests BUGS deps MANIFESTO runtest sentinel.conf utils CONTRIBUTING INSTALL README.md runtest-cluster src [root@mcw01 ~]$ cd redis [root@mcw01 ~/redis]$ egrep -v "^#|^$" redis.conf >mcwRedis.conf [root@mcw01 ~/redis]$ cat mcwRedis.conf bind 127.0.0.1 protected-mode yes #保護模式開啟，並且繫結ip是本機，應該是不支援遠端訪問，只支援本機訪問。 port 6379 tcp-backlog 511 timeout 0 tcp-keepalive 300 daemonize no supervised no pidfile /var/run/redis_6379.pid loglevel notice logfile "" databases 16 always-show-logo yes save 900 1 save 300 10 save 60 10000 stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes dbfilename dump.rdb dir ./ slave-serve-stale-data yes slave-read-only yes repl-diskless-sync no repl-diskless-sync-delay 5 repl-disable-tcp-nodelay no slave-priority 100 lazyfree-lazy-eviction no lazyfree-lazy-expire no lazyfree-lazy-server-del no slave-lazy-flush no appendonly no appendfilename "appendonly.aof" appendfsync everysec no-appendfsync-on-rewrite no auto-aof-rewrite-percentage 100 auto-aof-rewrite-min-size 64mb aof-load-truncated yes aof-use-rdb-preamble no lua-time-limit 5000 slowlog-log-slower-than 10000 slowlog-max-len 128 latency-monitor-threshold 0 notify-keyspace-events "" hash-max-ziplist-entries 512 hash-max-ziplist-value 64 list-max-ziplist-size -2 list-compress-depth 0 set-max-intset-entries 512 zset-max-ziplist-entries 128 zset-max-ziplist-value 64 hll-sparse-max-bytes 3000 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 aof-rewrite-incremental-fsync yes [root@mcw01 ~/redis]$
redis簡單配置並啟動
[root@mcw01 ~/redis]$ cat mcwRedis.conf bind 10.0.0.11 protected-mode yes port 6379 requirepass mcw123 #配置認證密碼 daemonize yes #後臺守護程式的方式開啟 pidfile /var/run/redis_6379.pid loglevel notice logfile "" [root@mcw01 ~/redis]$ [root@mcw01 ~/redis]$ ls 00-RELEASENOTES COPYING Makefile README.md runtest-cluster src BUGS deps MANIFESTO redis.conf runtest-sentinel tests CONTRIBUTING INSTALL mcwRedis.conf runtest sentinel.conf utils [root@mcw01 ~/redis]$ redis-server mcwRedis.conf #指定配置檔案啟動。這應該是後面有註釋導致的吧，去掉註釋 *** FATAL CONFIG FILE ERROR *** Reading the configuration file, at line 4 >>> 'requirepass mcw123 #配置認證密碼' Bad directive or wrong number of arguments 去掉註釋,然後成功啟動，這裡不能在配置後面加註釋，容易出錯 [root@mcw01 ~/redis]$ vim mcwRedis.conf [root@mcw01 ~/redis]$ cat mcwRedis.conf bind 10.0.0.11 protected-mode yes port 6379 requirepass mcw123 daemonize yes pidfile /var/run/redis_6379.pid loglevel notice logfile "" [root@mcw01 ~/redis]$ redis-server mcwRedis.conf 24391:C 05 Mar 19:10:38.749 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo 24391:C 05 Mar 19:10:38.749 # Redis version=4.0.10, bits=64, commit=00000000, modified=0, pid=24391, just started 24391:C 05 Mar 19:10:38.749 # Configuration loaded [root@mcw01 ~/redis]$ [root@mcw01 ~/redis]$ netstat -lntup|grep redis #成功啟動了 tcp 0 0 10.0.0.11:6379 0.0.0.0:* LISTEN 24392/redis-server [root@mcw01 ~/redis]$ [root@mcw01 ~/redis]$ redis-cli #現在直接這麼連線就不行了 Could not connect to Redis at 127.0.0.1:6379: Connection refused Could not connect to Redis at 127.0.0.1:6379: Connection refused not connected> [root@mcw01 ~/redis]$ redis-cli -h 10.0.0.11 -p 6379 #指定ip埠連線 10.0.0.11:6379> ping (error) NOAUTH Authentication required. 10.0.0.11:6379> auth mcw123 OK 10.0.0.11:6379> ping #認證之後就可以正常執行命令了 PONG 10.0.0.11:6379>
set、get命令
10.0.0.11:6379> set name mcw OK 10.0.0.11:6379> get name "mcw" 10.0.0.11:6379> set age 18 OK 10.0.0.11:6379> get age #它將值改為字串型別的了 "18" 10.0.0.11:6379>
簡單配置檔案介紹
bind 192.168.182.130 #繫結服務端地址 protected-mode yes #安全模式 port 6800 #埠 requirepass haohaio #密碼 daemonize yes #後臺執行 pidfile /var/run/redis_6379.pid #程式id檔案 loglevel notice #日誌等級 logfile ""
redis基礎資料型別
redis是一種高階的key：value儲存系統，其中value支援五種資料型別
字串（strings）
雜湊（hashes）
列表（lists）
集合（sets）
有序集合（sorted sets）
redis命令
redis簡單命令
keys * 檢視所有key
type key 檢視key型別
expire key seconds 過期時間
ttl key 檢視key過期剩餘時間 -2表示key已經不存在了
persist 取消key的過期時間 -1表示key存在，沒有過期時間
exists key 判斷key存在 存在返回1 否則0
del keys 刪除key 可以刪除多個
dbsize 計算key的數量
flushdb #清除redis所有key,慎用
flushdb #清除redis所有key,慎用
flushdb #清除redis所有key,慎用
keys * 10.0.0.11:6379> keys * 1) "age" 2) "name" 10.0.0.11:6379> set gender man OK 10.0.0.11:6379> keys * 1) "gender" 2) "age" 3) "name" 10.0.0.11:6379> keys * 檢視所有key 10.0.0.11:6379> keys * 1) "age" 2) "name" 10.0.0.11:6379> set gender man OK 10.0.0.11:6379> keys * 1) "gender" 2) "age" 3) "name" 10.0.0.11:6379> type key 檢視key型別 新增一個列表，檢視key型別，是列表型別 10.0.0.11:6379> keys * 1) "gender" 2) "age" 3) "name" 10.0.0.11:6379> type name string 10.0.0.11:6379> LPUSH paidui1 xiaoma mcw (integer) 2 10.0.0.11:6379> 10.0.0.11:6379> keys * 1) "paidui1" 2) "gender" 3) "age" 4) "name" 10.0.0.11:6379> type paidui1 list 10.0.0.11:6379> expire key seconds 過期時間 ttl key 檢視key過期剩餘時間 -2表示key已經不存在了 給已有的paidui1設定一個過期時間多少秒，然後ttl key可以檢視過期時間，當-2時就已經過期了，過期了就已經被移除了 10.0.0.11:6379> keys * 1) "paidui1" 2) "gender" 3) "age" 4) "name" 10.0.0.11:6379> EXPIRE paidui1 10 (integer) 1 10.0.0.11:6379> ttl paidui1 (integer) 2 10.0.0.11:6379> ttl paidui1 (integer) 1 10.0.0.11:6379> ttl paidui1 (integer) -2 10.0.0.11:6379> keys * 1) "gender" 2) "age" 3) "name" 10.0.0.11:6379> persist 取消key的過期時間 -1表示key存在，沒有過期時間 比如下面，將name設定50秒過期，當要取消name的過期時間，執行命令後，ttl值變成-1，就不會出現過期刪除的情況了 10.0.0.11:6379> keys * 1) "gender" 2) "age" 3) "name" 10.0.0.11:6379> EXPIRE name 50 (integer) 1 10.0.0.11:6379> ttl name (integer) 22 10.0.0.11:6379> ttl name (integer) 19 10.0.0.11:6379> PERSIST name (integer) 1 10.0.0.11:6379> ttl name (integer) -1 10.0.0.11:6379> keys * 1) "gender" 2) "age" 3) "name" 10.0.0.11:6379> exists key 判斷key存在 存在返回1 否則0 10.0.0.11:6379> keys * 1) "gender" 2) "age" 3) "name" 10.0.0.11:6379> exists name (integer) 1 10.0.0.11:6379> exists mcw (integer) 0 10.0.0.11:6379> del keys 刪除key 可以刪除多個 10.0.0.11:6379> keys * 1) "gender" 2) "age" 3) "name" 4) "myname" 10.0.0.11:6379> del myname (integer) 1 10.0.0.11:6379> keys * 1) "gender" 2) "age" 3) "name" 10.0.0.11:6379> dbsize 計算key的數量 10.0.0.11:6379> keys * 1) "gender" 2) "age" 3) "name" 10.0.0.11:6379> dbsize (integer) 3 10.0.0.11:6379> flushdb #清除redis所有key,慎用 flushdb #清除redis所有key,慎用 flushdb #清除redis所有key,慎用 10.0.0.11:6379> keys * 1) "gender" 2) "age" 3) "name" 10.0.0.11:6379> flushdb OK 10.0.0.11:6379> keys * (empty list or set) 10.0.0.11:6379>
字串型別命令
redis資料型別1,字串型別,通過set命令,設定字串型別的key strings型別 set 設定key get 獲取key append 追加string mset 設定多個鍵值對 mget 獲取多個鍵值對 del 刪除key incr 遞增+1 decr 遞減-1
set 設定key get 獲取key append 追加string 10.0.0.11:6379> set "name" "mcw" OK 10.0.0.11:6379> get name "mcw" 10.0.0.11:6379> append "name" "Haoren" (integer) 9 10.0.0.11:6379> get name "mcwHaoren" 10.0.0.11:6379> mset 設定多個鍵值對 mget 獲取多個鍵值對 10.0.0.11:6379> mset name2 "xiaoma" "name3" xiaohong OK 10.0.0.11:6379> keys * 1) "name2" 2) "name" 3) "name3" 10.0.0.11:6379> get name2 "xiaoma" 10.0.0.11:6379> get name3 "xiaohong" 10.0.0.11:6379> 10.0.0.11:6379> mget name name2 name3 1) "mcwHaoren" 2) "xiaoma" 3) "xiaohong" 10.0.0.11:6379> del 刪除key 10.0.0.11:6379> keys * 1) "name2" 2) "name" 3) "name3" 10.0.0.11:6379> del name (integer) 1 10.0.0.11:6379> del name2 name3 (integer) 2 10.0.0.11:6379> keys * (empty list or set) 10.0.0.11:6379> incr 遞增+1 decr 遞減-1 相當於把字串轉換為數字，計算後結果再改成字串。 還可以減為負值 10.0.0.11:6379> keys * (empty list or set) 10.0.0.11:6379> set "dian zan" 0 OK 10.0.0.11:6379> get "dian zan" "0" 10.0.0.11:6379> incr "dian zan" (integer) 1 10.0.0.11:6379> incr "dian zan" (integer) 2 10.0.0.11:6379> get "dian zan" "2" 10.0.0.11:6379> incr "dian zan" (integer) 3 10.0.0.11:6379> get "dian zan" "3" 10.0.0.11:6379> decr "dian zan" (integer) 2 10.0.0.11:6379> get "dian zan" "2" 10.0.0.11:6379> 10.0.0.11:6379> keys * 1) "dian zan" 10.0.0.11:6379> 10.0.0.11:6379> get "dian zan" "2" 10.0.0.11:6379> decr "dian zan" (integer) 1 10.0.0.11:6379> decr "dian zan" (integer) 0 10.0.0.11:6379> decr "dian zan" (integer) -1 10.0.0.11:6379> decr "dian zan" (integer) -2 10.0.0.11:6379> decr "dian zan" (integer) -3
list型別,雙向佇列
lpush 從列表左邊插
rpush 從列表右邊插
lrange 獲取一定長度的元素 lrange key start stop
ltrim 擷取一定長度列表
lpop 刪除最左邊一個元素
rpop 刪除最右邊一個元素
lpushx/rpushx key存在則新增值，不存在不處理
lpush 從列表左邊插 從左邊插入，再從左邊獲取，先插入的在裡面後取出，後插入的在左邊先取出 10.0.0.11:6379> keys * (empty list or set) 10.0.0.11:6379> lpush paidui mcw1 mcw2 mcw3 mcw4 (integer) 4 10.0.0.11:6379> lrange paidui 0 -1 1) "mcw4" 2) "mcw3" 3) "mcw2" 4) "mcw1" 10.0.0.11:6379> lpush paidui mcw5 (integer) 5 10.0.0.11:6379> lrange paidui 0 -1 1) "mcw5" 2) "mcw4" 3) "mcw3" 4) "mcw2" 5) "mcw1" 10.0.0.11:6379> rpush 從列表右邊插 從列表左邊取，第一個取出來的是最後推入的，最後一個取出的是第一個推入的。 可以想象成如下排隊順序， mcw5 mcw4 mcw3 mcw2 mcw1 當從右邊推入mcw6的時候就是 :mcw5 mcw4 mcw3 mcw2 mcw1 mcw6 當從左邊取資料的時候就是： 第一次取：mcw5 第二次取: mcw4 .... 第六次取：mcw6 10.0.0.11:6379> lrange paidui 0 -1 1) "mcw5" 2) "mcw4" 3) "mcw3" 4) "mcw2" 5) "mcw1" 10.0.0.11:6379> rpush paidui mcw6 (integer) 6 10.0.0.11:6379> lrange paidui 0 -1 1) "mcw5" 2) "mcw4" 3) "mcw3" 4) "mcw2" 5) "mcw1" 6) "mcw6" lrange 獲取一定長度的元素 lrange key start stop 取列表型別的資料，指定開始資料和結束資料，比如開始0，結束-1，這是取列表所有的值 10.0.0.11:6379> lrange paidui 0 -1 1) "mcw5" 2) "mcw4" 3) "mcw3" 4) "mcw2" 5) "mcw1" 10.0.0.11:6379> 10.0.0.11:6379> keys * 1) "paidui" 10.0.0.11:6379> type paidui list 10.0.0.11:6379> get paidui #列表型別不能用get取值 (error) WRONGTYPE Operation against a key holding the wrong kind of value 10.0.0.11:6379> lrange paid 0 -1 #不存在的鍵 (empty list or set) 10.0.0.11:6379> 10.0.0.11:6379> lrange paidui 0 -1 1) "mcw5" 2) "mcw4" 3) "mcw3" 4) "mcw2" 5) "mcw1" 10.0.0.11:6379> ltrim 擷取一定長度列表 根據查詢可知列表資料順序如下：mcw5 mcw4 mcw3 mcw2 mcw1 索引分別是： 0 1 2 3 4 這裡是從paidui左邊擷取，從索引1開始，從索引2結束，其中包含索引2的資料，擷取之後，這個key的值就變成擷取的值了mcw4 mcw3 然後從左邊查詢，第一個查出來的資料就是mcw4,第二個就是mcw3 10.0.0.11:6379> lrange paidui 0 -1 1) "mcw5" 2) "mcw4" 3) "mcw3" 4) "mcw2" 5) "mcw1" 10.0.0.11:6379> ltrim paidui 1 2 OK 10.0.0.11:6379> lrange paidui 0 -1 1) "mcw4" 2) "mcw3" 10.0.0.11:6379> lpop 刪除最左邊一個元素 rpop 刪除最右邊一個元素 根據lrange可以列表資料的順序是：mcw5 mcw4 mcw3 mcw2 mcw1 mcw6 所以從左邊刪除，刪的是mcw5,從右邊刪除，刪的是mcw6 10.0.0.11:6379> lrange paidui 0 -1 1) "mcw5" 2) "mcw4" 3) "mcw3" 4) "mcw2" 5) "mcw1" 6) "mcw6" 10.0.0.11:6379> lpop paidui "mcw5" 10.0.0.11:6379> rpop paidui "mcw6" 10.0.0.11:6379> lrange paidui 0 -1 1) "mcw4" 2) "mcw3" 3) "mcw2" 4) "mcw1" 10.0.0.11:6379> lpushx/rpushx key存在則新增值，不存在不處理 不存在返回個0。預設key不存在會建立key的 10.0.0.11:6379> keys * 1) "paidui" 10.0.0.11:6379> lpushx paid mcw0 (integer) 0 10.0.0.11:6379> keys * 1) "paidui" 10.0.0.11:6379> lpushx paidui mcw0 (integer) 5 10.0.0.11:6379> keys * 1) "paidui" 10.0.0.11:6379> lrange paidui 0 -1 1) "mcw0" 2) "mcw4" 3) "mcw3" 4) "mcw2" 5) "mcw1" 10.0.0.11:6379>
redis的集合，是一種無序的集合，集合中的元素沒有先後順序。
集合相關的操作也很豐富，如新增新元素、刪除已有元素、取交集、取並集、取差集等。我們來看例子：
sadd/srem 新增/刪除 元素
sismember 判斷是否為set的一個元素
smembers 返回集合所有的成員
sdiff 返回一個集合和其他集合的差異
sinter 返回幾個集合的交集
sunion 返回幾個集合的並集
sadd/srem 新增/刪除 元素 smembers 返回集合所有的成員 10.0.0.11:6379> keys * (empty list or set) 10.0.0.11:6379> sadd zoo gou mao zhu #新增 (integer) 3 10.0.0.11:6379> keys * 1) "zoo" 10.0.0.11:6379> type zoo set 10.0.0.11:6379> smembers zoo #查詢 1) "mao" 2) "zhu" 3) "gou" 10.0.0.11:6379> 10.0.0.11:6379> srem zoo zhu #刪除 (integer) 1 10.0.0.11:6379> smembers zoo 1) "mao" 2) "gou" 10.0.0.11:6379> 新增成員 10.0.0.11:6379> keys * 1) "zoo" 10.0.0.11:6379> smembers zoo 1) "mao" 2) "gou" 10.0.0.11:6379> sadd zoo zhu #新增 (integer) 1 10.0.0.11:6379> smembers zoo 1) "mao" 2) "zhu" 3) "gou" 10.0.0.11:6379> sismember 判斷是否為set的一個元素 mao是集合zoo裡的成員嗎，是，返回的是1； zhu是集合zoo裡的成員嗎，不是，返回的是0 10.0.0.11:6379> smembers zoo 1) "mao" 2) "gou" 10.0.0.11:6379> sismember zoo mao (integer) 1 10.0.0.11:6379> sismember zoo zhu (integer) 0 10.0.0.11:6379> sdiff 返回一個集合和其他集合的差異 如下，sdiff 集合1 集合2 返回集合1中有的，而集合2中沒有的。就是取差集 10.0.0.11:6379> keys * 1) "zoo2" 2) "zoo" 10.0.0.11:6379> smembers zoo 1) "mao" 2) "zhu" 3) "gou" 10.0.0.11:6379> smembers zoo2 1) "she" 2) "zhu" 3) "shu" 10.0.0.11:6379> sdiff zoo zoo2 1) "mao" 2) "gou" 10.0.0.11:6379> sdiff zoo2 zoo 1) "she" 2) "shu" 10.0.0.11:6379> sinter 返回幾個集合的交集 如下，幾個集合應該不只是包含兩個集合 10.0.0.11:6379> smembers zoo 1) "mao" 2) "zhu" 3) "gou" 10.0.0.11:6379> smembers zoo2 1) "she" 2) "zhu" 3) "shu" 10.0.0.11:6379> sinter zoo zoo2 1) "zhu" 10.0.0.11:6379> sinter zoo2 zoo 1) "zhu" 10.0.0.11:6379> sunion 返回幾個集合的並集 集合取並集，幾個集合應該不只是能用兩個集合 10.0.0.11:6379> smembers zoo 1) "mao" 2) "zhu" 3) "gou" 10.0.0.11:6379> smembers zoo2 1) "she" 2) "zhu" 3) "shu" 10.0.0.11:6379> sunion zoo zoo2 1) "she" 2) "zhu" 3) "gou" 4) "mao" 5) "shu" 10.0.0.11:6379>
.雜湊資料結構
hashes即雜湊。雜湊是從redis-2.0.0版本之後才有的資料結構。
hashes存的是字串和字串值之間的對映，比如一個使用者要儲存其全名、姓氏、年齡等等，就很適合使用雜湊。
hset 設定雜湊值
hget 獲取雜湊值
hmset 設定多對雜湊值
hmget 獲取多對雜湊值
hsetnx 如果雜湊已經存在，則不設定（防止覆蓋key）
hkeys 返回所有fileds
hvals 返回所有values
hlen 返回雜湊包含域（field）的數量
hdel 刪除雜湊指定的域（field）
hexists 判斷是否存在
hset 設定雜湊值 hget 獲取雜湊值 10.0.0.11:6379> hset stu1 name "mcw" age 18 height "170" (integer) 3 10.0.0.11:6379> keys * 1) "stu1" 10.0.0.11:6379> type stu1 hash 10.0.0.11:6379> hget stu1 name "mcw" 10.0.0.11:6379> hget stu1 age "18" 10.0.0.11:6379> hget stu1 height "170" 10.0.0.11:6379> 10.0.0.11:6379> hset new1 title "happy new year" content "ni hao" (integer) 2 10.0.0.11:6379> hmset 設定多對雜湊值 hmget 獲取多對雜湊值 10.0.0.11:6379> 10.0.0.11:6379> keys * 1) "stu1" 2) "new1" 10.0.0.11:6379> hmget stu1 name age height 1) "mcw" 2) "18" 3) "170" 10.0.0.11:6379> hsetnx 如果雜湊已經存在，則不設定（防止覆蓋key） 10.0.0.11:6379> hsetnx stu2 name "mcw2" age 18 height "168" (error) ERR wrong number of arguments for 'hsetnx' command 10.0.0.11:6379> 10.0.0.11:6379> hsetnx stu2 name "mcw2" (integer) 1 10.0.0.11:6379> hsetnx stu2 name "mcw2" (integer) 0 10.0.0.11:6379> keys * 1) "stu2" 2) "stu1" 3) "new1" 10.0.0.11:6379> hsetnx stu2 name "mcw1" (integer) 0 10.0.0.11:6379> hget stu2 name #存在stu2，使用hsetnx沒被修改 "mcw2" 10.0.0.11:6379> hset stu2 name "mcw1" (integer) 0 10.0.0.11:6379> hget stu2 name #存在stu2，使用hset被修改了 "mcw1" 10.0.0.11:6379> hkeys 返回所有fileds 10.0.0.11:6379> keys * 1) "stu2" 2) "stu1" 3) "new1" 10.0.0.11:6379> hkeys stu1 1) "name" 2) "age" 3) "height" 10.0.0.11:6379> hvals 返回所有values 10.0.0.11:6379> keys * 1) "stu2" 2) "stu1" 3) "new1" 10.0.0.11:6379> hvals stu1 1) "mcw" 2) "18" 3) "170" 10.0.0.11:6379> hlen 返回雜湊包含域（field）的數量 10.0.0.11:6379> keys * 1) "stu2" 2) "stu1" 3) "new1" 10.0.0.11:6379> hkeys stu1 1) "name" 2) "age" 3) "height" 10.0.0.11:6379> hlen stu1 (integer) 3 10.0.0.11:6379> hkeys new1 1) "title" 2) "content" 10.0.0.11:6379> hlen new1 (integer) 2 10.0.0.11:6379> hdel 刪除雜湊指定的域（field） 10.0.0.11:6379> keys * 1) "stu2" 2) "stu1" 3) "new1" 10.0.0.11:6379> type stu1 hash 10.0.0.11:6379> 10.0.0.11:6379> hkeys stu1 1) "name" 2) "age" 3) "height" 10.0.0.11:6379> hdel stu1 height #刪除指定欄位 (integer) 1 10.0.0.11:6379> hkeys stu1 1) "name" 2) "age" 10.0.0.11:6379> hexists 判斷是否存在 10.0.0.11:6379> keys * 1) "stu2" 2) "stu1" 3) "new1" 10.0.0.11:6379> type stu1 hash 10.0.0.11:6379> hkeys stu1 1) "name" 2) "age" 10.0.0.11:6379> hexists stu1 name #存在欄位返回1 (integer) 1 10.0.0.11:6379> hexists stu1 height #不存在欄位返回0 (integer) 0 10.0.0.11:6379>
釋出訂閱
主要應用：通知，公告
可以作為訊息佇列或者訊息管道
一個釋出，多個訂閱
釋出：廣播電臺頻道能傳送給所有接收這個頻道的人聲音資訊
訂閱：很多人都能接收到這個廣播電臺的訊息
比如qq群公告：一個釋出，多個訂閱（接收到）
如下，一個釋出者，兩個訂閱者，訂閱者1訂閱跟python和linux頻道有關的訊息；訂閱者2訂閱和golang和Linux有感的訊息
當釋出者釋出訊息的時候，訂閱者1接收到了訂閱頻道python發來的訊息
當釋出者釋出給linux頻道的時候，兩個訂閱人都接收到了訊息。釋出者這裡還返回了幾個訂閱人接收到了訊息。上面那條寫錯了釋出到一個沒有人訂閱的頻道上,返回0個訂閱者
釋出人釋出的頻道和接收的頻道，這樣寫是需要精準判斷，不能模糊匹配接收訊息的
當訂閱者這裡使用psubscribe的時候，後面變成了模式
當訂閱者使用psubscribe命令，且訂閱的頻道使用萬用字元的時候，那麼釋出者釋出的能跟訂閱者模糊匹配到的頻道，就被訂閱者接收到了
