Redis 使用

準備知識

????????????Redis是一款開源的內存數據結構存儲庫，被用于數據庫，緩存，以及消息隊列。支持的數據類型保存字符串，哈希，列表，集合。Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache and message broker. It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes with radius queries and streams. Redis has built-in replication, Lua scripting, LRU eviction, transactions and different levels of on-disk persistence, and provides high availability via Redis Sentinel and automatic partitioning with Redis Cluster.

指令使用

????????????1）登陸指令 $ redis-cli -h 192.168.58.138 -p 6379 -a "fengyuzaitu"

????????????2）查看服務運行狀態? 127.0.0.1:6379> ping

????????????3）(error) NOAUTH Authentication required. ? ?? 127.0.0.1:6379> auth 'fengyuzaitu'

訂閱指令使用

????????????1）Psubscribe 命令訂閱一個或多個符合給定模式的頻道。每個模式以 * 作為匹配符，比如 it* 匹配所有以 it 開頭的頻道( it.news 、 it.blog 、 it.tweets 等等)。 news.* 匹配所有以 news. 開頭的頻道( news.it news.global.today 等等)，諸如此類。

redis 127.0.0.1:6379> PSUBSCRIBE?USER_POSITION_INFO*

????????????2）Subscribe 命令用于訂閱給定的一個或多個頻道的信息。。

redis 127.0.0.1:6379> SUBSCRIBEUSER_POSITION_INFO

注意：Psubscribe訂閱的主題必須帶*,這個跟Subscribe完全不一樣