{"id":162167,"date":"2024-11-04T12:40:37","date_gmt":"2024-11-04T04:40:37","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162167\/"},"modified":"2024-11-04T12:40:37","modified_gmt":"2024-11-04T04:40:37","slug":"%e7%9b%a3%e6%8e%a7-redis-%e4%b8%ad-key-%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93%ef%bc%88redis-%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93%e7%9b%a3%e8%81%bd%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162167\/","title":{"rendered":"\u76e3\u63a7 Redis \u4e2d Key \u7684\u904e\u671f\u6642\u9593\uff08redis \u904e\u671f\u6642\u9593\u76e3\u807d\uff09"},"content":{"rendered":"

\u76e3\u63a7 Redis \u4e2d Key \u7684\u904e\u671f\u6642\u9593\uff08redis \u904e\u671f\u6642\u9593\u76e3\u807d\uff09<\/h1>\n

\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5f0f\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6703\u8a71\u7ba1\u7406\u548c\u5373\u6642\u6578\u64da\u8655\u7406\u7b49\u5834\u666f\u3002Redis \u63d0\u4f9b\u4e86\u9375\u7684\u904e\u671f\u529f\u80fd\uff0c\u5141\u8a31\u7528\u6236\u8a2d\u7f6e\u9375\u7684\u751f\u5b58\u6642\u9593\uff0c\u7576\u6642\u9593\u5230\u9054\u5f8c\uff0c\u9375\u5c07\u81ea\u52d5\u88ab\u522a\u9664\u3002\u9019\u4e00\u7279\u6027\u5728\u8a31\u591a\u61c9\u7528\u4e2d\u90fd\u975e\u5e38\u91cd\u8981\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u7ba1\u7406\u5927\u91cf\u81e8\u6642\u6578\u64da\u7684\u60c5\u6cc1\u4e0b\u3002\u7136\u800c\uff0c\u5982\u4f55\u6709\u6548\u5730\u76e3\u63a7\u9019\u4e9b\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u4e26\u5728\u904e\u671f\u6642\u57f7\u884c\u7279\u5b9a\u64cd\u4f5c\uff0c\u5247\u662f\u4e00\u500b\u503c\u5f97\u6df1\u5165\u63a2\u8a0e\u7684\u8a71\u984c\u3002<\/p>\n

Redis \u7684\u904e\u671f\u6a5f\u5236<\/h2>\n

Redis \u63d0\u4f9b\u4e86\u5169\u7a2e\u4e3b\u8981\u7684\u904e\u671f\u6a5f\u5236\uff1a\u5b9a\u6642\u522a\u9664\u548c\u60f0\u6027\u522a\u9664\u3002\u5b9a\u6642\u522a\u9664\u662f\u6307 Redis \u6703\u5b9a\u671f\u6aa2\u67e5\u6240\u6709\u8a2d\u7f6e\u4e86\u904e\u671f\u6642\u9593\u7684\u9375\uff0c\u4e26\u522a\u9664\u90a3\u4e9b\u5df2\u7d93\u904e\u671f\u7684\u9375\u3002\u60f0\u6027\u522a\u9664\u5247\u662f\u5728\u7528\u6236\u8a2a\u554f\u67d0\u500b\u9375\u6642\uff0c\u6aa2\u67e5\u8a72\u9375\u662f\u5426\u904e\u671f\uff0c\u5982\u679c\u904e\u671f\u5247\u522a\u9664\u3002\u9019\u5169\u7a2e\u6a5f\u5236\u7684\u7d50\u5408\u4f7f\u5f97 Redis \u80fd\u5920\u9ad8\u6548\u5730\u7ba1\u7406\u904e\u671f\u9375\u3002<\/p>\n

\u76e3\u63a7\u904e\u671f\u9375\u7684\u9700\u6c42<\/h2>\n

\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u5c0d\u904e\u671f\u9375\u9032\u884c\u76e3\u63a7\uff0c\u4ee5\u4fbf\u5728\u9375\u904e\u671f\u6642\u57f7\u884c\u7279\u5b9a\u7684\u696d\u52d9\u908f\u8f2f\u3002\u4f8b\u5982\uff0c\u7576\u4e00\u500b\u7528\u6236\u7684\u6703\u8a71\u904e\u671f\u6642\uff0c\u53ef\u80fd\u9700\u8981\u6e05\u7406\u76f8\u95dc\u7684\u8cc7\u6e90\u6216\u8a18\u9304\u65e5\u8a8c\u3002\u9019\u5c31\u9700\u8981\u4e00\u7a2e\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u76e3\u807d Redis \u4e2d\u9375\u7684\u904e\u671f\u4e8b\u4ef6\u3002<\/p>\n

\u4f7f\u7528 Redis \u7684 Keyspace Notifications<\/h2>\n

Redis \u63d0\u4f9b\u4e86\u4e00\u500b\u540d\u70ba Keyspace Notifications \u7684\u529f\u80fd\uff0c\u5141\u8a31\u7528\u6236\u8a02\u95b1\u9375\u7a7a\u9593\u4e2d\u7684\u4e8b\u4ef6\uff0c\u5305\u62ec\u9375\u7684\u904e\u671f\u4e8b\u4ef6\u3002\u8981\u555f\u7528\u9019\u4e00\u529f\u80fd\uff0c\u9700\u8981\u5728 Redis \u914d\u7f6e\u6587\u4ef6\u4e2d\u8a2d\u7f6e\u4ee5\u4e0b\u53c3\u6578\uff1a<\/p>\n

notify-keyspace-events Ex<\/code><\/pre>\n
\u9019\u88e1\u7684 “Ex” \u8868\u793a\u76e3\u807d\u904e\u671f\u4e8b\u4ef6\u3002\u555f\u7528\u5f8c\uff0c\u7528\u6236\u53ef\u4ee5\u4f7f\u7528 Pub\/Sub \u6a5f\u5236\u4f86\u63a5\u6536\u904e\u671f\u4e8b\u4ef6\u7684\u901a\u77e5\u3002<\/p>\n
\u793a\u4f8b\uff1a\u76e3\u807d\u904e\u671f\u4e8b\u4ef6<\/h3>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 Python \u548c Redis-py \u5eab\u4f86\u76e3\u807d\u904e\u671f\u4e8b\u4ef6\u7684\u7c21\u55ae\u793a\u4f8b\uff1a<\/p>\n
import redis\n\n# \u9023\u63a5\u5230 Redis\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\n# \u8a2d\u7f6e\u4e00\u500b\u9375\u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\nr.set('my_key', 'value', ex=10)\n\n# \u8a02\u95b1\u904e\u671f\u4e8b\u4ef6\np = r.pubsub()\np.psubscribe('__keyevent@0__:expired')\n\n# \u76e3\u807d\u4e8b\u4ef6\nfor message in p.listen():\n    if message['type'] == 'pmessage':\n        print(f\"\u9375 {message['data'].decode('utf-8')} \u5df2\u904e\u671f\")<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u8a2d\u7f6e\u4e86\u4e00\u500b\u9375 ‘my_key’\uff0c\u4e26\u5c07\u5176\u904e\u671f\u6642\u9593\u8a2d\u7f6e\u70ba 10 \u79d2\u3002\u7136\u5f8c\uff0c\u6211\u5011\u8a02\u95b1\u4e86\u904e\u671f\u4e8b\u4ef6\uff0c\u4e26\u5728\u9375\u904e\u671f\u6642\u6253\u5370\u51fa\u76f8\u61c9\u7684\u6d88\u606f\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u76e3\u63a7 Redis \u4e2d\u9375\u7684\u904e\u671f\u6642\u9593\u5c0d\u65bc\u8a31\u591a\u61c9\u7528\u4f86\u8aaa\u90fd\u662f\u4e00\u500b\u91cd\u8981\u7684\u9700\u6c42\u3002\u901a\u904e\u4f7f\u7528 Redis \u7684 Keyspace Notifications \u529f\u80fd\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u76e3\u807d\u904e\u671f\u4e8b\u4ef6\uff0c\u4e26\u5728\u9375\u904e\u671f\u6642\u57f7\u884c\u76f8\u61c9\u7684\u696d\u52d9\u908f\u8f2f\u3002\u9019\u4e0d\u50c5\u63d0\u9ad8\u4e86\u61c9\u7528\u7684\u9748\u6d3b\u6027\uff0c\u4e5f\u80fd\u5920\u66f4\u597d\u5730\u7ba1\u7406\u8cc7\u6e90\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 Redis \u5be6\u4f8b\uff0cServer.HK \u63d0\u4f9b\u4e86\u7a69\u5b9a\u7684\u670d\u52d9\u548c\u9748\u6d3b\u7684\u914d\u7f6e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u76e3\u63a7 Redis \u4e2d Key \u7684\u904e\u671f\u6642\u9593\uff0c\u5be6\u73fe\u9ad8\u6548\u7684\u8cc7\u6e90\u7ba1\u7406\u8207\u6578\u64da\u6e05\u7406\uff0c\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u8207\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-162167","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=162167"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162167\/revisions"}],"predecessor-version":[{"id":162168,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162167\/revisions\/162168"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}