Redis基本命令总结(三)

柔光的暖阳◎ 2022-05-29 11:41 228阅读 0赞

# Redis基本命令总结(三) #

本文主要包括如下几个部分:  
\* PING命令  
\* INFO命令  
\* CONFIG命令  
\* 5种基本操作类型操作  
\* 发布&订阅  
\* 事务

与本文相关的代码与配置文件都已经上传至github上:  
地址: [https://github.com/SeanYanxml/bigdata][https_github.com_SeanYanxml_bigdata]

--------------------

### 发布&订阅 ###

# 订阅
    redis 127.0.0.1:6379> SUBSCRIBE redisChat
    
    Reading messages... (press Ctrl-C to quit)
    1) "subscribe"
    2) "redisChat"
    3) (integer) 1

# 发布
    redis 127.0.0.1:6379> PUBLISH redisChat "Redis is a great caching technique"
    
    (integer) 1
    
    redis 127.0.0.1:6379> PUBLISH redisChat "Learn redis by runoob.com"
    
    (integer) 1
    
    # 订阅者的客户端会显示如下消息
    1) "message"
    2) "redisChat"
    3) "Redis is a great caching technique"
    1) "message"
    2) "redisChat"
    3) "Learn redis by yanxml.com"

--------------------

### 事务 ###

redis 127.0.0.1:6379> MULTI
    OK
    
    redis 127.0.0.1:6379> SET book-name "Mastering C++ in 21 days"
    QUEUED
    
    redis 127.0.0.1:6379> GET book-name
    QUEUED
    
    redis 127.0.0.1:6379> SADD tag "C++" "Programming" "Mastering Series"
    QUEUED
    
    redis 127.0.0.1:6379> SMEMBERS tag
    QUEUED
    
    redis 127.0.0.1:6379> EXEC
    1) OK
    2) "Mastering C++ in 21 days"
    3) (integer) 3
    4) 1) "Mastering Series"
       2) "C++"
       3) "Programming"

--------------------

### 脚本 ###

Redis 脚本使用 Lua 解释器来执行脚本。

# redis 127.0.0.1:6379> EVAL script numkeys key [key ...] arg [arg ...]
    # redis 127.0.0.1:6379> EVAL "return {KEYS[1],KEYS[2],ARGV[1],ARGV[2]}" 2 key1 key2 first second
    
    1) "key1"
    2) "key2"
    3) "first"
    4) "second"

--------------------

### Reference ###

\[1\]. [https://redis.io/commands][https_redis.io_commands]  
\[2\]. [(Runoob)Redis教程][Runoob_Redis]

[https_github.com_SeanYanxml_bigdata]: https://github.com/SeanYanxml/bigdata
[https_redis.io_commands]: https://redis.io/commands
[Runoob_Redis]: http://www.runoob.com/redis/