{"id":129495,"date":"2024-10-26T22:04:21","date_gmt":"2024-10-26T14:04:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129495\/"},"modified":"2024-10-26T22:04:22","modified_gmt":"2024-10-26T14:04:22","slug":"redis%e6%8f%90%e5%89%8d%e9%80%9a%e7%9f%a5key%e9%81%8e%e6%9c%9f%e8%ae%8a%e6%9b%b4%ef%bc%88redis%e9%81%8e%e6%9c%9fkey%e9%80%9a%e7%9f%a5%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129495\/","title":{"rendered":"Redis\u63d0\u524d\u901a\u77e5Key\u904e\u671f\u8b8a\u66f4\uff08redis\u904e\u671fkey\u901a\u77e5\uff09"},"content":{"rendered":"

Redis\u63d0\u524d\u901a\u77e5Key\u904e\u671f\u8b8a\u66f4\uff08Redis\u904e\u671fKey\u901a\u77e5\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\u7684\u904e\u671f\u9375\u529f\u80fd\u5141\u8a31\u7528\u6236\u8a2d\u7f6e\u9375\u7684\u6709\u6548\u671f\u9650\uff0c\u7576\u9375\u904e\u671f\u6642\uff0c\u81ea\u52d5\u522a\u9664\u8a72\u9375\u3002\u7136\u800c\uff0cRedis\u7684\u9ed8\u8a8d\u884c\u70ba\u662f\u7576\u9375\u904e\u671f\u6642\uff0c\u4e26\u4e0d\u6703\u4e3b\u52d5\u901a\u77e5\u7528\u6236\u3002\u9019\u4f7f\u5f97\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u9700\u8981\u63d0\u524d\u7372\u77e5\u9375\u7684\u904e\u671f\u4e8b\u4ef6\uff0c\u4ee5\u4fbf\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u7684\u904e\u671f\u9375\u901a\u77e5\u6a5f\u5236\u53ca\u5176\u5be6\u73fe\u65b9\u6cd5\u3002<\/p>\n

Redis\u904e\u671f\u9375\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

\u5728Redis\u4e2d\uff0c\u6bcf\u500b\u9375\u90fd\u53ef\u4ee5\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\u3002\u7576\u904e\u671f\u6642\u9593\u5230\u9054\u6642\uff0c\u8a72\u9375\u5c07\u88ab\u81ea\u52d5\u522a\u9664\u3002\u7528\u6236\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\uff1a<\/p>\n

SET mykey \"value\"\nEXPIRE mykey 10  # \u8a2d\u7f6emykey\u572810\u79d2\u5f8c\u904e\u671f\n<\/code><\/pre>\n
\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c`mykey`\u5c07\u572810\u79d2\u5f8c\u81ea\u52d5\u522a\u9664\u3002\u9019\u5c0d\u65bc\u9700\u8981\u5b9a\u671f\u6e05\u7406\u904e\u671f\u6578\u64da\u7684\u61c9\u7528\u7a0b\u5f0f\u4f86\u8aaa\u975e\u5e38\u6709\u7528\u3002<\/p>\n
Redis\u7684\u904e\u671f\u9375\u901a\u77e5\u6a5f\u5236<\/h2>\n
Redis\u63d0\u4f9b\u4e86\u4e00\u7a2e\u6a5f\u5236\u4f86\u901a\u77e5\u7528\u6236\u9375\u7684\u904e\u671f\u4e8b\u4ef6\uff0c\u9019\u662f\u901a\u904e\u767c\u5e03\/\u8a02\u95b1\u6a21\u5f0f\u4f86\u5be6\u73fe\u7684\u3002\u7528\u6236\u53ef\u4ee5\u9078\u64c7\u8a02\u95b1\u7279\u5b9a\u7684\u4e8b\u4ef6\uff0c\u7576\u9375\u904e\u671f\u6642\uff0cRedis\u6703\u5c07\u76f8\u61c9\u7684\u901a\u77e5\u767c\u9001\u5230\u8a02\u95b1\u8005\u3002<\/p>\n
\u555f\u7528\u904e\u671f\u901a\u77e5<\/h3>\n
\u8981\u555f\u7528\u904e\u671f\u901a\u77e5\uff0c\u9996\u5148\u9700\u8981\u5728Redis\u914d\u7f6e\u6587\u4ef6\u4e2d\u8a2d\u7f6e\u4ee5\u4e0b\u53c3\u6578\uff1a<\/p>\n
notify-keyspace-events Ex\n<\/code><\/pre>\n
\u9019\u500b\u8a2d\u7f6e\u544a\u8a34Redis\u5728\u9375\u904e\u671f\u6642\u767c\u9001\u901a\u77e5\u3002\u7528\u6236\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u4f86\u6aa2\u67e5\u7576\u524d\u7684\u914d\u7f6e\uff1a<\/p>\n
CONFIG GET notify-keyspace-events\n<\/code><\/pre>\n
\u8a02\u95b1\u904e\u671f\u4e8b\u4ef6<\/h3>\n
\u4e00\u65e6\u555f\u7528\u904e\u671f\u901a\u77e5\uff0c\u7528\u6236\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u8a02\u95b1\u904e\u671f\u4e8b\u4ef6\uff1a<\/p>\n
PSUBSCRIBE __keyevent@0__:expired\n<\/code><\/pre>\n
\u9019\u689d\u547d\u4ee4\u5c07\u8a02\u95b1\u6578\u64da\u5eab0\u4e2d\u6240\u6709\u904e\u671f\u9375\u7684\u4e8b\u4ef6\u3002\u7576\u67d0\u500b\u9375\u904e\u671f\u6642\uff0cRedis\u6703\u5c07\u4e8b\u4ef6\u767c\u9001\u5230\u8a02\u95b1\u8005\uff0c\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n
expired mykey\n<\/code><\/pre>\n
\u5be6\u969b\u61c9\u7528\u6848\u4f8b<\/h2>\n
\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u61c9\u7528\u7a0b\u5f0f\u9700\u8981\u5728\u7528\u6236\u6703\u8a71\u904e\u671f\u6642\u57f7\u884c\u67d0\u4e9b\u6e05\u7406\u64cd\u4f5c\u3002\u901a\u904e\u4f7f\u7528Redis\u7684\u904e\u671f\u901a\u77e5\u6a5f\u5236\uff0c\u6211\u5011\u53ef\u4ee5\u5728\u6703\u8a71\u904e\u671f\u6642\u81ea\u52d5\u89f8\u767c\u6e05\u7406\u908f\u8f2f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Python\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528Redis\u7684\u904e\u671f\u901a\u77e5\uff1a<\/p>\n
import redis\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u8a2d\u7f6e\u904e\u671f\u9375\nr.set('session:123', 'user_data', ex=10)\n\n# \u8a02\u95b1\u904e\u671f\u4e8b\u4ef6\npubsub = r.pubsub()\npubsub.psubscribe('__keyevent@0__:expired')\n\n# \u76e3\u807d\u904e\u671f\u4e8b\u4ef6\nfor message in pubsub.listen():\n    if message['type'] == 'pmessage':\n        print(f\"\u9375 {message['data'].decode('utf-8')} \u5df2\u904e\u671f\")\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u8a2d\u7f6e\u4e86\u4e00\u500b\u6703\u8a71\u9375\uff0c\u4e26\u572810\u79d2\u5f8c\u904e\u671f\u3002\u901a\u904e\u8a02\u95b1\u904e\u671f\u4e8b\u4ef6\uff0c\u6211\u5011\u53ef\u4ee5\u5728\u9375\u904e\u671f\u6642\u63a5\u6536\u5230\u901a\u77e5\uff0c\u4e26\u57f7\u884c\u76f8\u61c9\u7684\u6e05\u7406\u64cd\u4f5c\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
Redis\u7684\u904e\u671f\u9375\u901a\u77e5\u6a5f\u5236\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9748\u6d3b\u7684\u65b9\u5f0f\u4f86\u7ba1\u7406\u904e\u671f\u6578\u64da\u3002\u901a\u904e\u555f\u7528\u904e\u671f\u901a\u77e5\u4e26\u4f7f\u7528\u767c\u5e03\/\u8a02\u95b1\u6a21\u5f0f\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5728\u9375\u904e\u671f\u6642\u7372\u5f97\u5373\u6642\u901a\u77e5\uff0c\u5f9e\u800c\u57f7\u884c\u5fc5\u8981\u7684\u6e05\u7406\u6216\u5176\u4ed6\u696d\u52d9\u908f\u8f2f\u3002\u9019\u4e00\u529f\u80fd\u5728\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u61c9\u7528\u4e2d\u5c24\u70ba\u91cd\u8981\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\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 \u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u53ef\u9760\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3Redis\u7684\u63d0\u524d\u901a\u77e5\u529f\u80fd\uff0c\u638c\u63e1\u5982\u4f55\u63a5\u6536Key\u904e\u671f\u8b8a\u66f4\u7684\u901a\u77e5\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\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-129495","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129495","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=129495"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129495\/revisions"}],"predecessor-version":[{"id":129496,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129495\/revisions\/129496"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129495"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129495"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129495"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}