{"id":105428,"date":"2024-10-23T13:04:18","date_gmt":"2024-10-23T05:04:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/105428\/"},"modified":"2024-10-23T13:04:19","modified_gmt":"2024-10-23T05:04:19","slug":"redis-%e9%81%8e%e6%9c%9f%e6%99%82%e5%9b%9e%e8%aa%bf%e5%87%bd%e6%95%b8%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e4%b9%8b%e6%8e%a2%e7%a9%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/105428\/","title":{"rendered":"Redis \u904e\u671f\u6642\u56de\u8abf\u51fd\u6578\u5be6\u969b\u61c9\u7528\u4e4b\u63a2\u7a76"},"content":{"rendered":"

Redis \u904e\u671f\u6642\u56de\u8abf\u51fd\u6578\u5be6\u969b\u61c9\u7528\u4e4b\u63a2\u7a76<\/h1>\n

\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u5834\u666f\u3002Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\uff0c\u5176\u4e2d\u4e4b\u4e00\u662f\u9375\u7684\u904e\u671f\u7ba1\u7406\u3002\u7576\u4e00\u500b\u9375\u904e\u671f\u6642\uff0cRedis \u53ef\u4ee5\u57f7\u884c\u56de\u8abf\u51fd\u6578\uff0c\u9019\u4e00\u7279\u6027\u5728\u8a31\u591a\u5be6\u969b\u61c9\u7528\u4e2d\u90fd\u986f\u5f97\u5c24\u70ba\u91cd\u8981\u3002<\/p>\n

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

Redis \u652f\u6301\u70ba\u9375\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u9019\u610f\u5473\u8457\u5728\u6307\u5b9a\u7684\u6642\u9593\u5f8c\uff0c\u8a72\u9375\u5c07\u81ea\u52d5\u88ab\u522a\u9664\u3002\u9019\u4e00\u529f\u80fd\u53ef\u4ee5\u901a\u904e EXPIRE<\/code> \u547d\u4ee4\u4f86\u5be6\u73fe\u3002\u4f8b\u5982\uff1a<\/p>\n

EXPIRE mykey 60<\/code><\/pre>\n
\u4e0a\u8ff0\u547d\u4ee4\u5c07\u4f7f\u5f97 mykey<\/code> \u5728 60 \u79d2\u5f8c\u904e\u671f\u3002\u9664\u4e86 EXPIRE<\/code> \u547d\u4ee4\uff0cRedis \u9084\u63d0\u4f9b\u4e86 PEXPIRE<\/code>\uff08\u4ee5\u6beb\u79d2\u70ba\u55ae\u4f4d\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff09\u548c EXPIREAT<\/code>\uff08\u8a2d\u7f6e\u5177\u9ad4\u7684\u904e\u671f\u6642\u9593\uff09\u7b49\u547d\u4ee4\u3002<\/p>\n
\u904e\u671f\u9375\u7684\u56de\u8abf\u51fd\u6578<\/h2>\n
Redis \u7684\u904e\u671f\u9375\u56de\u8abf\u51fd\u6578\u529f\u80fd\u662f\u901a\u904e keyspace notifications<\/code> \u5be6\u73fe\u7684\u3002\u7576\u4e00\u500b\u9375\u904e\u671f\u6642\uff0cRedis \u53ef\u4ee5\u767c\u9001\u901a\u77e5\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u9019\u4e9b\u901a\u77e5\u57f7\u884c\u76f8\u61c9\u7684\u56de\u8abf\u51fd\u6578\u3002\u8981\u555f\u7528\u9019\u4e00\u529f\u80fd\uff0c\u9996\u5148\u9700\u8981\u5728 Redis \u914d\u7f6e\u4e2d\u8a2d\u7f6e notify-keyspace-events<\/code> \u53c3\u6578\uff1a<\/p>\n
notify-keyspace-events Ex<\/code><\/pre>\n
\u9019\u6a23\u8a2d\u7f6e\u5f8c\uff0c\u7576\u9375\u904e\u671f\u6642\uff0cRedis \u5c07\u6703\u767c\u9001\u4e00\u500b\u4e8b\u4ef6\u5230\u76f8\u61c9\u7684\u901a\u9053\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8a02\u95b1\u9019\u500b\u901a\u9053\u4f86\u63a5\u6536\u901a\u77e5\u3002<\/p>\n
\u5be6\u969b\u61c9\u7528\u6848\u4f8b<\/h2>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u61c9\u7528\u6848\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728 Redis \u4e2d\u4f7f\u7528\u904e\u671f\u9375\u7684\u56de\u8abf\u51fd\u6578\u3002\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u7528\u6236\u6703\u8a71\u7ba1\u7406\u7cfb\u7d71\uff0c\u7576\u7528\u6236\u767b\u9304\u6642\uff0c\u6211\u5011\u5e0c\u671b\u5728\u4e00\u5b9a\u6642\u9593\u5f8c\u81ea\u52d5\u767b\u51fa\u7528\u6236\u3002<\/p>\n
\u6b65\u9a5f 1: \u8a2d\u7f6e\u904e\u671f\u9375<\/h3>\n
SET session:user123 \"active\"\nEXPIRE session:user123 300<\/code><\/pre>\n
\u5728\u9019\u88e1\uff0c\u6211\u5011\u70ba\u7528\u6236 user123<\/code> \u8a2d\u7f6e\u4e86\u4e00\u500b\u6703\u8a71\uff0c\u4e26\u5728 300 \u79d2\u5f8c\u904e\u671f\u3002<\/p>\n
\u6b65\u9a5f 2: \u8a02\u95b1\u904e\u671f\u4e8b\u4ef6<\/h3>\n
\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u9700\u8981\u5728\u61c9\u7528\u7a0b\u5f0f\u4e2d\u8a02\u95b1\u904e\u671f\u4e8b\u4ef6\uff1a<\/p>\n
import redis\n\nr = redis.Redis()\np = r.pubsub()\np.subscribe('__keyevent@0__:expired')\n\nfor message in p.listen():\n    if message['type'] == 'message':\n        print(f\"Key expired: {message['data']}\")<\/code><\/pre>\n
\u7576 session:user123<\/code> \u9375\u904e\u671f\u6642\uff0c\u61c9\u7528\u7a0b\u5f0f\u5c07\u63a5\u6536\u5230\u901a\u77e5\uff0c\u4e26\u53ef\u4ee5\u57f7\u884c\u76f8\u61c9\u7684\u767b\u51fa\u64cd\u4f5c\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
Redis \u7684\u904e\u671f\u9375\u56de\u8abf\u51fd\u6578\u529f\u80fd\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9748\u6d3b\u7684\u65b9\u5f0f\u4f86\u7ba1\u7406\u548c\u97ff\u61c9\u9375\u7684\u904e\u671f\u4e8b\u4ef6\u3002\u901a\u904e\u5408\u7406\u5229\u7528\u9019\u4e00\u529f\u80fd\uff0c\u53ef\u4ee5\u5728\u8a31\u591a\u5834\u666f\u4e2d\u63d0\u9ad8\u61c9\u7528\u7a0b\u5f0f\u7684\u6548\u7387\u548c\u7528\u6236\u9ad4\u9a57\u3002\u7121\u8ad6\u662f\u7528\u6236\u6703\u8a71\u7ba1\u7406\u3001\u7de9\u5b58\u5931\u6548\u9084\u662f\u8cc7\u6e90\u91cb\u653e\uff0cRedis \u7684\u904e\u671f\u6a5f\u5236\u90fd\u80fd\u5920\u63d0\u4f9b\u5f37\u6709\u529b\u7684\u652f\u6301\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22Redis\u904e\u671f\u6642\u56de\u8abf\u51fd\u6578\u7684\u5be6\u969b\u61c9\u7528\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u5be6\u73fe\u81ea\u52d5\u5316\u8655\u7406\u8207\u8cc7\u6e90\u512a\u5316\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-105428","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/105428","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=105428"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/105428\/revisions"}],"predecessor-version":[{"id":105429,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/105428\/revisions\/105429"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=105428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=105428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=105428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}