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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                >[info] Stram 數據類型應用 **stream 做消息隊列:** 優點:異步、流量削峰、解耦 ![](https://img.kancloud.cn/b8/fd/b8fdd2a3eb1ade908a2309d9b9932a7b_735x405.png) ![](https://img.kancloud.cn/88/c5/88c5a37760ecea9a0c61540e98d80cbb_1457x1046.png) ***** >[info] Redis發布訂閱 Redis 發布訂閱 (pub/sub) 是一種消息通信模式:發送者 (pub) 發送消息,訂閱者 (sub) 接收消息。Redis 客戶端可以訂閱任意數量的頻道。 ![](https://img.kancloud.cn/bf/a3/bfa3ddd73905e3db2d1e1ac53b6d3b3d_1120x442.png) 客戶端可以訂閱一個或者多個頻道,從而成為這些頻道的訂閱者,每當有其他客戶端向被訂閱的頻道發送 消息時,頻道的訂閱者都會收到這條消息。 ***** **客戶端1:** ``` # 訂閱頻道 127.0.0.1:6379> subscribe starsky Reading messages... (press Ctrl-C to quit) 1) "subscribe" 2) "starsky" 3) (integer) 1 ``` ![](https://img.kancloud.cn/7e/69/7e6946c168d495ee70a3e2084e8e04b4_403x133.png) **客戶端2:** ``` " # 向頻道 starsky 發送消息 127.0.0.1:6379> publish starsky "hello world" (integer) 1 127.0.0.1:6379> ``` 客戶端1接收到訂閱的消息: ![](https://img.kancloud.cn/5b/11/5b113a295ecbfdfa6a9f85fb5b675538_573x231.png) **根據規則訂閱多頻道:** ``` # 客戶端1開啟正則訂閱監聽 psubscribe star* # 客戶端2發送消息 publish starsky "php" ``` 兩個頻道都有收到消息: ![](https://img.kancloud.cn/82/3a/823a3dfe5e8acbb4161010e5d12a1ee3_446x192.png) ![](https://img.kancloud.cn/4c/a8/4ca8b31f515a6ea7cf8ad92885019b66_466x236.png) ***** >[info] 發布訂閱應用場景 **廣播消息推送:** **活動:** **公告:** ![](https://img.kancloud.cn/de/0a/de0ac0c7b6235ec61236bc9d5cb8fa2b_931x625.png) ***** >[info] redis發布訂閱,list類型,stream類型對比 **list 類型:** 商品秒殺,隊列 ![](https://img.kancloud.cn/77/7d/777db1dc5bab0293ab11b629f57f9879_1120x606.png) ***** **stream 類型:** ![](https://img.kancloud.cn/ca/09/ca09c23e032e8ed73045fde55373c7e7_1152x637.png)
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