{"id":98692,"date":"2024-10-21T04:44:16","date_gmt":"2024-10-20T20:44:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/98692\/"},"modified":"2024-10-21T04:44:17","modified_gmt":"2024-10-20T20:44:17","slug":"redis-%e7%9a%84%e6%b8%85%e9%99%a4-key-%e7%9a%84%e9%ab%98%e6%95%88%e7%ae%a1%e7%90%86%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/98692\/","title":{"rendered":"Redis \u7684\u6e05\u9664 Key \u7684\u9ad8\u6548\u7ba1\u7406\u65b9\u6cd5"},"content":{"rendered":"<h1 id=\"redis-%e7%9a%84%e6%b8%85%e9%99%a4-key-%e7%9a%84%e9%ab%98%e6%95%88%e7%ae%a1%e7%90%86%e6%96%b9%e6%b3%95-KtbUJgdkbj\">Redis \u7684\u6e05\u9664 Key \u7684\u9ad8\u6548\u7ba1\u7406\u65b9\u6cd5<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u3002\u7136\u800c\uff0c\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0cRedis \u4e2d\u7684\u6578\u64da\u91cf\u53ef\u80fd\u6703\u8fc5\u901f\u589e\u9577\uff0c\u9019\u5c31\u9700\u8981\u6709\u6548\u7684\u7ba1\u7406\u548c\u6e05\u9664\u4e0d\u518d\u9700\u8981\u7684\u9375\uff08Key\uff09\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5e7e\u7a2e\u9ad8\u6548\u7684 Redis \u6e05\u9664 Key \u7684\u7ba1\u7406\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"1-%e4%bd%bf%e7%94%a8%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93%ef%bc%88ttl%ef%bc%89-KtbUJgdkbj\">1. \u4f7f\u7528\u904e\u671f\u6642\u9593\uff08TTL\uff09<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\u7684\u529f\u80fd\uff0c\u9019\u662f\u7ba1\u7406\u9375\u7684\u6700\u7c21\u55ae\u65b9\u6cd5\u4e4b\u4e00\u3002\u901a\u904e\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0cRedis \u6703\u81ea\u52d5\u5728\u6307\u5b9a\u7684\u6642\u9593\u5f8c\u522a\u9664\u8a72\u9375\u3002\u9019\u5c0d\u65bc\u81e8\u6642\u6578\u64da\u7279\u5225\u6709\u7528\u3002<\/p>\n<pre><code>SET mykey \"Hello\"\nEXPIRE mykey 10  # mykey \u5c07\u5728 10 \u79d2\u5f8c\u81ea\u52d5\u522a\u9664\n<\/code><\/pre>\n<p>\u4f7f\u7528\u904e\u671f\u6642\u9593\u7684\u597d\u8655\u5728\u65bc\uff0c\u958b\u767c\u8005\u4e0d\u9700\u8981\u624b\u52d5\u7ba1\u7406\u9375\u7684\u751f\u547d\u9031\u671f\uff0cRedis \u6703\u81ea\u52d5\u8655\u7406\u3002<\/p>\n<h2 id=\"2-%e4%b8%bb%e5%8b%95%e5%88%aa%e9%99%a4%e4%b8%8d%e9%9c%80%e8%a6%81%e7%9a%84%e9%8d%b5-KtbUJgdkbj\">2. \u4e3b\u52d5\u522a\u9664\u4e0d\u9700\u8981\u7684\u9375<\/h2>\n<p>\u9664\u4e86\u4f7f\u7528\u904e\u671f\u6642\u9593\uff0c\u958b\u767c\u8005\u9084\u53ef\u4ee5\u6839\u64da\u696d\u52d9\u908f\u8f2f\u4e3b\u52d5\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u9375\u3002\u9019\u53ef\u4ee5\u901a\u904e Redis \u7684 <code>DEL<\/code> \u547d\u4ee4\u4f86\u5be6\u73fe\u3002<\/p>\n<pre><code>DEL mykey  # \u522a\u9664\u6307\u5b9a\u7684\u9375\n<\/code><\/pre>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u7279\u5b9a\u689d\u4ef6\u4f86\u6c7a\u5b9a\u4f55\u6642\u522a\u9664\u9375\uff0c\u4f8b\u5982\u7528\u6236\u767b\u51fa\u6642\u522a\u9664\u5176\u6703\u8a71\u4fe1\u606f\u3002<\/p>\n<h2 id=\"3-%e4%bd%bf%e7%94%a8-redis-%e7%9a%84%e6%8e%83%e6%8f%8f%e5%91%bd%e4%bb%a4-KtbUJgdkbj\">3. \u4f7f\u7528 Redis \u7684\u6383\u63cf\u547d\u4ee4<\/h2>\n<p>\u7576\u9700\u8981\u6e05\u9664\u5927\u91cf\u9375\u6642\uff0c\u4f7f\u7528 <code>SCAN<\/code> \u547d\u4ee4\u53ef\u4ee5\u6709\u6548\u5730\u904d\u6b77\u9375\u7a7a\u9593\uff0c\u800c\u4e0d\u6703\u9020\u6210\u963b\u585e\u3002\u9019\u5c0d\u65bc\u5927\u6578\u64da\u96c6\u7279\u5225\u6709\u7528\u3002<\/p>\n<pre><code>SCAN 0 MATCH myprefix:* COUNT 100  # \u904d\u6b77\u4ee5 myprefix: \u958b\u982d\u7684\u9375\n<\/code><\/pre>\n<p>\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u6383\u63cf\u5230\u7684\u9375\u9032\u884c\u9032\u4e00\u6b65\u7684\u8655\u7406\uff0c\u4f8b\u5982\u522a\u9664\u6216\u66f4\u65b0\u3002<\/p>\n<h2 id=\"4-%e4%bd%bf%e7%94%a8-redis-%e7%9a%84%e9%8d%b5%e7%a9%ba%e9%96%93%e9%80%9a%e7%9f%a5-KtbUJgdkbj\">4. \u4f7f\u7528 Redis \u7684\u9375\u7a7a\u9593\u901a\u77e5<\/h2>\n<p>Redis \u652f\u6301\u9375\u7a7a\u9593\u901a\u77e5\uff0c\u9019\u4f7f\u5f97\u958b\u767c\u8005\u53ef\u4ee5\u5728\u9375\u88ab\u522a\u9664\u6216\u904e\u671f\u6642\u63a5\u6536\u5230\u901a\u77e5\u3002\u9019\u5c0d\u65bc\u9700\u8981\u5373\u6642\u53cd\u61c9\u7684\u61c9\u7528\u5834\u666f\u975e\u5e38\u6709\u7528\u3002<\/p>\n<pre><code>CONFIG SET notify-keyspace-events Ex  # \u555f\u7528\u904e\u671f\u4e8b\u4ef6\u901a\u77e5\n<\/code><\/pre>\n<p>\u958b\u767c\u8005\u53ef\u4ee5\u8a02\u95b1\u9019\u4e9b\u4e8b\u4ef6\uff0c\u4e26\u6839\u64da\u9700\u8981\u57f7\u884c\u76f8\u61c9\u7684\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"5-%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86%e4%b8%8d%e6%b4%bb%e8%ba%8d%e7%9a%84%e9%8d%b5-KtbUJgdkbj\">5. \u5b9a\u671f\u6e05\u7406\u4e0d\u6d3b\u8e8d\u7684\u9375<\/h2>\n<p>\u5c0d\u65bc\u9577\u671f\u904b\u884c\u7684\u61c9\u7528\uff0c\u5b9a\u671f\u6e05\u7406\u4e0d\u6d3b\u8e8d\u7684\u9375\u662f\u4e00\u500b\u826f\u597d\u7684\u505a\u6cd5\u3002\u53ef\u4ee5\u901a\u904e\u8a2d\u7f6e\u5b9a\u6642\u4efb\u52d9\u4f86\u5be6\u73fe\uff0c\u4f8b\u5982\u4f7f\u7528 cron \u4f5c\u696d\u4f86\u5b9a\u671f\u57f7\u884c\u6e05\u7406\u8173\u672c\u3002<\/p>\n<pre><code>#!\/bin\/bash\nredis-cli --scan --pattern 'mykey:*' | xargs redis-cli del  # \u522a\u9664\u6240\u6709\u4ee5 mykey: \u958b\u982d\u7684\u9375\n<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd Redis \u7684\u6027\u80fd\u4e0d\u6703\u56e0\u70ba\u904e\u591a\u7684\u7121\u7528\u9375\u800c\u53d7\u5230\u5f71\u97ff\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-KtbUJgdkbj\">\u7e3d\u7d50<\/h2>\n<p>\u6709\u6548\u7ba1\u7406 Redis \u4e2d\u7684\u9375\u662f\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u548c\u8cc7\u6e90\u5229\u7528\u7387\u7684\u95dc\u9375\u3002\u901a\u904e\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3001\u4e3b\u52d5\u522a\u9664\u3001\u4f7f\u7528\u6383\u63cf\u547d\u4ee4\u3001\u9375\u7a7a\u9593\u901a\u77e5\u4ee5\u53ca\u5b9a\u671f\u6e05\u7406\u4e0d\u6d3b\u8e8d\u7684\u9375\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9ad8\u6548\u5730\u7ba1\u7406 Redis \u7684\u9375\u3002\u9019\u4e9b\u65b9\u6cd5\u4e0d\u50c5\u80fd\u5920\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\uff0c\u9084\u80fd\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u8cc7\u6e90\u6d6a\u8cbb\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 Redis \u5be6\u4f8b\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f\u5176\u4ed6\u5730\u5340\u7684\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 Redis \u4e2d\u9ad8\u6548\u7ba1\u7406\u548c\u6e05\u9664 Key \u7684\u65b9\u6cd5\uff0c\u63d0\u5347\u6027\u80fd\uff0c\u4f18\u5316\u5b58\u50a8\uff0c\u786e\u4fdd\u6570\u636e\u7ba1\u7406\u7684\u7075\u6d3b\u6027\u4e0e\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-98692","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98692","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=98692"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98692\/revisions"}],"predecessor-version":[{"id":98693,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98692\/revisions\/98693"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=98692"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=98692"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=98692"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}