{"id":33913,"date":"2022-11-17T03:15:41","date_gmt":"2024-02-01T16:52:37","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/websocket%e5%92%8credis-pub-sub\/"},"modified":"2024-04-29T01:04:00","modified_gmt":"2024-04-28T17:04:00","slug":"websocket%e5%92%8credis-pub-sub","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/websocket%e5%92%8credis-pub-sub\/","title":{"rendered":"WebSocket\u548cRedis Pub\/Sub"},"content":{"rendered":"

\u4f7f\u7528Redis\u7684Pub\/Sub\u529f\u80fd\u53ef\u4ee5\u5728\u591a\u4e2a\u670d\u52a1\u5668\u4e4b\u95f4\u540c\u6b65Websocket\u901a\u4fe1\u4fe1\u606f\u3002
\n\u5f53\u4e3a\u4e86\u6269\u5c55\u6027\u800c\u542f\u52a8\u591a\u4e2aWebsocket\u670d\u52a1\u5668\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u4e00\u79cd\u673a\u5236\u6765\u540c\u6b65\u670d\u52a1\u5668\u95f4\u7684\u901a\u4fe1\u4fe1\u606f\uff0c\u4f8b\u5982\u5728\u804a\u5929\u5e94\u7528\u4e2d\uff0c\u8fde\u63a5\u5230\u670d\u52a1\u5668A\u7684\u5ba2\u6237\u7aef\u5c06\u65e0\u6cd5\u4e0e\u8fde\u63a5\u5230\u670d\u52a1\u5668B\u7684\u5ba2\u6237\u7aef\u6b63\u5e38\u4ea4\u6362\u6d88\u606f\u3002
\nRedis\u7684Pub\/Sub\u529f\u80fd\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n

\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8<\/div>\n

Redis Pub\/Sub\u662f\u4e00\u79cd\u53d1\u5e03\/\u8ba2\u9605\u6a21\u5f0f\u7684\u6d88\u606f\u4f20\u9012\u7cfb\u7edf\u3002<\/h2>\n

Pus\/Sub\u6240\u6d89\u53ca\u7684\u4e3b\u8981\u6982\u5ff5\u662f\uff1a<\/p>\n

\n
\u7528\u8a9e\u8aac\u660ePublish\u767a\u884c\u3059\u308b\u3053\u3068Subscribe\u8cfc\u8aad\u3059\u308b\u3053\u3068Channel\u8cfc\u8aad\u3059\u308b\u30c1\u30e3\u30f3\u30cd\u30eb<\/div>\n<\/div>\n

\u5728\u5e7f\u64ad\u4e2d\uff0c
\n\u4f20\u9001\u8282\u76ee\u662f”\u53d1\u5e03”\uff0c
\n\u6536\u542c\u8282\u76ee\u662f”\u8ba2\u9605”\uff0c
\n\u8282\u76ee\u672c\u8eab\u662f”\u9891\u9053”\u3002
\n\u5e7f\u64ad\u58f0\u97f3\u53ea\u4f1a\u4f20\u9001\u7ed9\u90a3\u4e9b\u6536\u542c\u8282\u76ee\u7684\u4eba\u3002<\/p>\n

\u6211\u5c06\u4f7f\u7528Redis-cli\u6765\u5c1d\u8bd5pubsub\u3002<\/p>\n

redis-server \u3000\/\/Redis\u3092\u8d77\u52d5\r\nredis-cli   \u3000\u3000\/\/CLI\u3092\u8d77\u52d5\r\n<\/code><\/pre>\n
\u6253\u5f00\u4e24\u4e2a\u7ec8\u7aef\u6807\u7b7e\uff0c\u5176\u4e2d\u4e00\u4e2a\u7ec8\u7aef\u4e2d<\/p>\n
SUBSCRIBE MorningShow\r\n<\/code><\/pre>\n
\u5728\u53e6\u4e00\u4e2a\u7ec8\u7aef\u4e2d<\/p>\n
PUBLISH MorningShow \"Good Morning!\"\r\n<\/code><\/pre>\n
\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8_2020-12-27_17_42_18.png\"<\/div>\n
\u4f7f\u7528Node.js\u8fd0\u884c\u793a\u4f8b\u4ee3\u7801<\/h2>\n
\u8fd9\u662f\u4e00\u4e2a\u4f7f\u7528Node.js\u548cRedis PubSub\u7684\u7b80\u5355\u793a\u4f8b\uff0c\u91c7\u7528\u4e86websocket\u3002\u6e90\u4ee3\u7801\u5728\u8fd9\u91cc\u3002<\/p>\n
\"ezgif.com-crop.gif\"<\/div>\n
\u9996\u5148\u662f\u5ba2\u6237\u7aef\u3002\u5f53\u8fde\u63a5\u6309\u94ae\u88ab\u6309\u4e0b\u65f6\uff0c\u5c06\u8bbf\u95ee\u670d\u52a1\u5668\u3002\u4e00\u65e6\u4ece\u670d\u52a1\u5668\u63a5\u6536\u5230\u6d88\u606f\uff0c\u5c06\u5728\u5c4f\u5e55\u4e0a\u663e\u793a\u3002<\/p>\n
wsButton<\/span>.<\/span>onclick<\/span> =<\/span> function<\/span> ()<\/span> {<\/span>\r\n    wsSendButton<\/span>.<\/span>disabled<\/span> =<\/span> false<\/span>;<\/span>\r\n\r\n    ws<\/span> =<\/span> new<\/span> WebSocket<\/span>(<\/span>`ws:\/\/<\/span>${<\/span>location<\/span>.<\/span>host<\/span>}<\/span>`<\/span>);<\/span>\r\n    ws<\/span>.<\/span>onopen<\/span> =<\/span> function<\/span> ()<\/span> {<\/span>\r\n        showMessage<\/span>(<\/span>'<\/span>WebSocket connection established<\/span>'<\/span>);<\/span>\r\n    };<\/span>\r\n    ws<\/span>.<\/span>onmessage<\/span> =<\/span> function<\/span> (<\/span>message<\/span>)<\/span> {<\/span>\r\n        let<\/span> data<\/span> =<\/span> JSON<\/span>.<\/span>parse<\/span>(<\/span>message<\/span>.<\/span>data<\/span>)<\/span>\r\n        showMessage<\/span>(<\/span>JSON<\/span>.<\/span>stringify<\/span>(<\/span>data<\/span>.<\/span>message<\/span>));<\/span>\r\n    };<\/span>\r\n     --<\/span> \u7701\u7565<\/span> --<\/span>\r\n};<\/span>\r\n<\/code><\/pre>\n
\u7136\u540e\u662f\u670d\u52a1\u5668\u7aef\u3002
\n\u6211\u4eec\u5c06\u521b\u5efaWebSocket\u76d1\u542c\u5668\u5e76\u8fde\u63a5\u5230Redis\u3002\u8fd9\u6b21\u6211\u4eec\u5c06\u8fde\u63a5\u5230\u4f7f\u7528docker-compose\u521b\u5efa\u7684Redis\u5bb9\u5668\uff0c\u6240\u4ee5\u5c06Redis\u4e3b\u673a\u8bbe\u7f6e\u4e3a\u5bb9\u5668\u540d\u79f0”redis”\uff08\u53c2\u8003\uff09\u3002\u6211\u4eec\u521b\u5efa\u4e86\u4e24\u4e2a\u8fde\u63a5\u5230Redis\u7684\u8fde\u63a5\uff0c\u4e00\u4e2a\u7528\u4e8e\u53d1\u5e03\u6d88\u606f\uff0c\u4e00\u4e2a\u7528\u4e8e\u8ba2\u9605\u3002<\/p>\n
const<\/span> express<\/span> =<\/span> require<\/span>(<\/span>'<\/span>express<\/span>'<\/span>);<\/span>\r\nconst<\/span> http<\/span> =<\/span> require<\/span>(<\/span>'<\/span>http<\/span>'<\/span>);<\/span>\r\nconst<\/span> WebSocket<\/span> =<\/span> require<\/span>(<\/span>'<\/span>ws<\/span>'<\/span>);<\/span>\r\nconst<\/span> Redis<\/span> =<\/span> require<\/span>(<\/span>'<\/span>ioredis<\/span>'<\/span>);<\/span>\r\nconst<\/span> app<\/span> =<\/span> express<\/span>();<\/span>\r\n\r\napp<\/span>.<\/span>use<\/span>(<\/span>express<\/span>.<\/span>static<\/span>(<\/span>'<\/span>public<\/span>'<\/span>));<\/span>\r\nconst<\/span> server<\/span> =<\/span> http<\/span>.<\/span>createServer<\/span>(<\/span>app<\/span>);<\/span>\r\nconst<\/span> wss<\/span> =<\/span> new<\/span> WebSocket<\/span>.<\/span>Server<\/span>({<\/span> noServer<\/span>:<\/span> true<\/span> });<\/span>\r\n\r\nconst<\/span> redis<\/span> =<\/span> new<\/span> Redis<\/span>(<\/span>'<\/span>redis<\/span>'<\/span>);<\/span> \/\/redis container<\/span>\r\nconst<\/span> client<\/span> =<\/span> new<\/span> Redis<\/span>(<\/span>'<\/span>redis<\/span>'<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u4ee5\u4e0b\u662fpubsub\u5904\u7406\u90e8\u5206\u7684\u5185\u5bb9\u3002
\n\u9996\u5148\uff0c\u9884\u5148\u5728\u4e00\u4e2aRedis\u8fde\u63a5\u4e2d\u8ba2\u9605\u540d\u4e3a’newMessage’\u7684\u9891\u9053\u3002
\n\u5f53\u4ece\u5ba2\u6237\u7aef\u63a5\u6536\u5230\u6d88\u606f\u65f6\uff0c\u4f7f\u7528\u53e6\u4e00\u4e2a\u8fde\u63a5\u5c06\u63a5\u6536\u5230\u7684\u6d88\u606f\u53d1\u5e03\u5230’newMessage’\u9891\u9053\u3002
\n\u5f53\u6709\u65b0\u6d88\u606f\u5230\u8fbe’newMessage’\u9891\u9053\u65f6\uff0c\u5c06\u5411\u6240\u6709\u5ba2\u6237\u7aef\u4f20\u9012\u6d88\u606f\u3002<\/p>\n
function<\/span> subscribeMessage<\/span>(<\/span>channel<\/span>)<\/span> {<\/span>\r\n  client<\/span>.<\/span>subscribe<\/span>(<\/span>channel<\/span>);<\/span>\r\n  client<\/span>.<\/span>on<\/span>(<\/span>'<\/span>message<\/span>'<\/span>,<\/span> function<\/span>(<\/span>channel<\/span>,<\/span> message<\/span>)<\/span> {<\/span>\r\n    broadcast<\/span>(<\/span>JSON<\/span>.<\/span>parse<\/span>(<\/span>message<\/span>))<\/span>\r\n  });<\/span>\r\n}<\/span>\r\nsubscribeMessage<\/span>(<\/span>'<\/span>newMessage<\/span>'<\/span>)<\/span>\r\n\r\n\/\/ broadcast message to all clients<\/span>\r\nfunction<\/span> broadcast<\/span>(<\/span>message<\/span>){<\/span>\r\n  wss<\/span>.<\/span>clients<\/span>.<\/span>forEach<\/span>(<\/span>function<\/span>(<\/span>client<\/span>){<\/span>\r\n    client<\/span>.<\/span>send<\/span>(<\/span>JSON<\/span>.<\/span>stringify<\/span>({<\/span>\r\n        message<\/span>:<\/span> message<\/span>\r\n    }))<\/span>\r\n  })<\/span>\r\n}<\/span>\r\n\r\nwss<\/span>.<\/span>on<\/span>(<\/span>'<\/span>connection<\/span>'<\/span>,<\/span> function<\/span> (<\/span>ws<\/span>,<\/span> request<\/span>)<\/span> {<\/span>\r\n  ws<\/span>.<\/span>on<\/span>(<\/span>'<\/span>message<\/span>'<\/span>,<\/span> function<\/span> (<\/span>message<\/span>)<\/span> {<\/span>\r\n    redis<\/span>.<\/span>publish<\/span>(<\/span>'<\/span>newMessage<\/span>'<\/span>,<\/span> JSON<\/span>.<\/span>stringify<\/span>(<\/span>message<\/span>))<\/span>\r\n  });<\/span>\r\n\r\n  --<\/span> \u7701\u7565<\/span> --<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
\u53ea\u4f7f\u7528\u4e00\u53f0\u670d\u52a1\u5668\u6765\u8fd0\u884cpubsub\u6ca1\u6709\u610f\u4e49\u3002
\n\u56e0\u6b64\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u5c06\u90e8\u7f72\u4e24\u4e2aNode.js\u7684docker\u5bb9\u5668\uff0c\u5f53\u6d88\u606f\u5230\u8fbe\u4e00\u4e2a\u5bb9\u5668\u65f6\uff0c\u6211\u4eec\u5c06\u5c1d\u8bd5\u901a\u8fc7pubsub\u5c06\u5176\u540c\u6b65\u5230\u53e6\u4e00\u4e2a\u5bb9\u5668\u3002<\/p>\n
\u5728Node.js\u5bb9\u5668\u4e4b\u95f4\u8fdb\u884c\u540c\u6b65\u901a\u4fe1<\/h2>\n
\u4ee5\u4e0b\u662f\u7528\u4e8e\u521b\u5efaNode.js\u5bb9\u5668\u7684Dockerfile\uff0c\u6211\u76f4\u63a5\u4f7f\u7528\u4e86\u5b98\u65b9\u63d0\u4f9b\u7684\u5185\u5bb9\u3002<\/p>\n
\r\nFROM<\/span> node:12<\/span>\r\n\r\nWORKDIR<\/span> \/usr\/src\/app<\/span>\r\n\r\nCOPY<\/span> package*.json .\/<\/span>\r\n\r\nRUN <\/span>npm install<\/span>\r\n\r\nCOPY<\/span> . .<\/span>\r\n\r\nCMD<\/span> [ \"node\", \"server.js\" ]<\/span>\r\n<\/code><\/pre>\n
\u4f7f\u7528Dockerfile\u521b\u5efa\u4e24\u4e2aNode.js\u5bb9\u5668\u548c\u4e00\u4e2aRedis\u5bb9\u5668\uff0c\u901a\u8fc7docker-compose\u5de5\u5177\u8fdb\u884c\u914d\u7f6e\u3002
\n\u5176\u4e2d\u4e00\u4e2aNode\u5bb9\u5668\u53ef\u4ee5\u901a\u8fc7localhost:3000\u8fdb\u884c\u8bbf\u95ee\uff0c\u53e6\u4e00\u4e2aNode\u5bb9\u5668\u53ef\u4ee5\u901a\u8fc7localhost:3030\u8fdb\u884c\u8bbf\u95ee\u3002<\/p>\n
version<\/span>:<\/span> '<\/span>3'<\/span>\r\nservices<\/span>:<\/span>\r\n  server1<\/span>:<\/span>\r\n    build<\/span>:<\/span> .<\/span>\r\n    ports<\/span>:<\/span>\r\n      -<\/span> 3000:3000<\/span>\r\n  server2<\/span>:<\/span>\r\n    build<\/span>:<\/span> .<\/span>\r\n    ports<\/span>:<\/span>\r\n      -<\/span> 3030:3000<\/span>\r\n  redis<\/span>:<\/span>\r\n    image<\/span>:<\/span> redis:6<\/span>\r\n    ports<\/span>:<\/span>\r\n      -<\/span> 6379:6379<\/span>\r\n<\/code><\/pre>\n
\u6700\u540e\u542f\u52a8\u5bb9\u5668\u3002<\/p>\n
docker-compose up --build\r\n<\/code><\/pre>\n
\"ezgif.com-crop.gif\"<\/div>\n
\u5b9e\u9645\u7684\u5e94\u7528\u4f1a\u66f4\u52a0\u590d\u6742\uff0c\u4f46\u6211\u5df2\u7ecf\u5199\u4e86\u6982\u8ff0\u3002
\n\u66f4\u5b9e\u7528\u7684\u5e94\u7528\u67b6\u6784\u548c\u5b9e\u65bd\u65b9\u6cd5\uff0c\u6211\u8ba4\u4e3a\u53ef\u4ee5\u53c2\u8003AWS\u7684\u535a\u5ba2\uff0c\u5b83\u4eec\u975e\u5e38\u6613\u61c2\u3002<\/p>\n
\u8bf7\u53c2\u8003<\/h2>\n
    Amazon ElastiCache for Redis \u3092\u4f7f\u3063\u305fChat\u30a2\u30d7\u30ea\u306e\u958b\u767a<\/ul>\n","protected":false},"excerpt":{"rendered":"
    \u4f7f\u7528Redis\u7684Pub\/Sub\u529f\u80fd\u53ef\u4ee5\u5728\u591a\u4e2a\u670d\u52a1\u5668\u4e4b\u95f4\u540c\u6b65Websocket\u901a\u4fe1\u4fe1\u606f\u3002 \u5f53\u4e3a\u4e86\u6269\u5c55\u6027\u800c\u542f\u52a8\u591a\u4e2a […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-33913","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nWebSocket\u548cRedis Pub\/Sub - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/websocket\u548credis-pub-sub\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"WebSocket\u548cRedis Pub\/Sub\" \/>\n<meta property=\"og:description\" content=\"\u4f7f\u7528Redis\u7684Pub\/Sub\u529f\u80fd\u53ef\u4ee5\u5728\u591a\u4e2a\u670d\u52a1\u5668\u4e4b\u95f4\u540c\u6b65Websocket\u901a\u4fe1\u4fe1\u606f\u3002 \u5f53\u4e3a\u4e86\u6269\u5c55\u6027\u800c\u542f\u52a8\u591a\u4e2a […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/websocket\u548credis-pub-sub\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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