{"id":172019,"date":"2024-11-07T09:36:24","date_gmt":"2024-11-07T01:36:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/172019\/"},"modified":"2024-11-07T09:36:25","modified_gmt":"2024-11-07T01:36:25","slug":"%e6%b8%85%e7%90%86redis%e9%9b%86%e7%be%a4%e7%a7%bb%e9%99%a4%e7%84%a1%e6%95%88%e7%9a%84key%ef%bc%88%e5%88%aa%e9%99%a4redis%e9%9b%86%e7%be%a4key%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/172019\/","title":{"rendered":"\u6e05\u7406Redis\u96c6\u7fa4\u79fb\u9664\u7121\u6548\u7684Key\uff08\u522a\u9664redis\u96c6\u7fa4key\uff09"},"content":{"rendered":"<h1 id=\"%e6%b8%85%e7%90%86redis%e9%9b%86%e7%be%a4%e7%a7%bb%e9%99%a4%e7%84%a1%e6%95%88%e7%9a%84key%ef%bc%88%e5%88%aa%e9%99%a4redis%e9%9b%86%e7%be%a4key%ef%bc%89-OdxUbeFIoD\">\u6e05\u7406Redis\u96c6\u7fa4\u79fb\u9664\u7121\u6548\u7684Key\uff08\u522a\u9664redis\u96c6\u7fa4key\uff09<\/h1>\n<p>Redis\u662f\u4e00\u500b\u9ad8\u6548\u80fd\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u3002\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0cRedis\u96c6\u7fa4\u4e2d\u53ef\u80fd\u6703\u7a4d\u7d2f\u5927\u91cf\u7121\u6548\u7684Key\uff0c\u9019\u4e0d\u50c5\u6703\u4f54\u7528\u5b58\u5132\u7a7a\u9593\uff0c\u9084\u53ef\u80fd\u5f71\u97ff\u7cfb\u7d71\u7684\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u5b9a\u671f\u6e05\u7406\u7121\u6548\u7684Key\u662f\u7dad\u6301Redis\u96c6\u7fa4\u5065\u5eb7\u904b\u884c\u7684\u91cd\u8981\u6b65\u9a5f\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%b8%85%e7%90%86%e7%84%a1%e6%95%88%e7%9a%84key-OdxUbeFIoD\">\u70ba\u4ec0\u9ebc\u9700\u8981\u6e05\u7406\u7121\u6548\u7684Key<\/h2>\n<p>\u7121\u6548\u7684Key\u53ef\u80fd\u7531\u591a\u7a2e\u539f\u56e0\u7522\u751f\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u61c9\u7528\u7a0b\u5e8f\u932f\u8aa4\uff1a\u67d0\u4e9bKey\u53ef\u80fd\u5728\u61c9\u7528\u7a0b\u5e8f\u4e2d\u672a\u6b63\u78ba\u522a\u9664\u3002<\/li>\n<li>\u904e\u671fKey\uff1a\u8a2d\u7f6e\u4e86\u904e\u671f\u6642\u9593\u7684Key\u5728\u904e\u671f\u5f8c\u4ecd\u7136\u5b58\u5728\u65bc\u6578\u64da\u5eab\u4e2d\u3002<\/li>\n<li>\u6e2c\u8a66\u6578\u64da\uff1a\u958b\u767c\u548c\u6e2c\u8a66\u904e\u7a0b\u4e2d\u7522\u751f\u7684\u81e8\u6642\u6578\u64da\u672a\u88ab\u6e05\u7406\u3002<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u7121\u6548\u7684Key\u4e0d\u50c5\u6d6a\u8cbb\u5b58\u5132\u8cc7\u6e90\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u67e5\u8a62\u6027\u80fd\u4e0b\u964d\uff0c\u5f71\u97ff\u6574\u9ad4\u7cfb\u7d71\u7684\u97ff\u61c9\u901f\u5ea6\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%ad%98%e5%88%a5%e7%84%a1%e6%95%88%e7%9a%84key-OdxUbeFIoD\">\u5982\u4f55\u8b58\u5225\u7121\u6548\u7684Key<\/h2>\n<p>\u5728\u6e05\u7406\u7121\u6548\u7684Key\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u8b58\u5225\u54ea\u4e9bKey\u662f\u7121\u6548\u7684\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8redis%e5%91%bd%e4%bb%a4-OdxUbeFIoD\">1. \u4f7f\u7528Redis\u547d\u4ee4<\/h3>\n<p>Redis\u63d0\u4f9b\u4e86\u4e00\u4e9b\u547d\u4ee4\u4f86\u5e6b\u52a9\u8b58\u5225\u7121\u6548\u7684Key\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><code>KEYS *<\/code>\uff1a\u5217\u51fa\u6240\u6709\u7684Key\uff0c\u4f46\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u4f7f\u7528\u6642\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\u3002<\/li>\n<li><code>SCAN<\/code>\uff1a\u9019\u662f\u4e00\u500b\u66f4\u9ad8\u6548\u7684\u547d\u4ee4\uff0c\u53ef\u4ee5\u9010\u6b65\u904d\u6b77Key\uff0c\u9069\u5408\u5927\u578b\u6578\u64da\u96c6\u3002<\/li>\n<\/ul>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-OdxUbeFIoD\">2. \u6aa2\u67e5\u904e\u671f\u6642\u9593<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528<code>TTL<\/code>\u547d\u4ee4\u4f86\u6aa2\u67e5\u6bcf\u500bKey\u7684\u5269\u9918\u751f\u5b58\u6642\u9593\uff0c\u82e5\u8fd4\u56de-1\u5247\u8868\u793a\u8a72Key\u4e0d\u6703\u904e\u671f\uff0c\u82e5\u8fd4\u56de-2\u5247\u8868\u793a\u8a72Key\u4e0d\u5b58\u5728\u3002<\/p>\n<h2 id=\"%e5%88%aa%e9%99%a4%e7%84%a1%e6%95%88%e7%9a%84key-OdxUbeFIoD\">\u522a\u9664\u7121\u6548\u7684Key<\/h2>\n<p>\u4e00\u65e6\u8b58\u5225\u51fa\u7121\u6548\u7684Key\uff0c\u5c31\u53ef\u4ee5\u9032\u884c\u522a\u9664\u3002\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u522a\u9664\u7121\u6548Key\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8del%e5%91%bd%e4%bb%a4-OdxUbeFIoD\">1. \u4f7f\u7528DEL\u547d\u4ee4<\/h3>\n<p>\u5c0d\u65bc\u55ae\u500bKey\uff0c\u53ef\u4ee5\u4f7f\u7528<code>DEL<\/code>\u547d\u4ee4\u4f86\u522a\u9664\uff1a<\/p>\n<pre><code>DEL key_name<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8unlink%e5%91%bd%e4%bb%a4-OdxUbeFIoD\">2. \u4f7f\u7528UNLINK\u547d\u4ee4<\/h3>\n<p>\u5982\u679c\u9700\u8981\u522a\u9664\u5927\u91cfKey\uff0c\u5efa\u8b70\u4f7f\u7528<code>UNLINK<\/code>\u547d\u4ee4\uff0c\u9019\u6a23\u53ef\u4ee5\u975e\u963b\u585e\u5730\u522a\u9664Key\uff0c\u6e1b\u5c11\u5c0d\u6027\u80fd\u7684\u5f71\u97ff\uff1a<\/p>\n<pre><code>UNLINK key_name1 key_name2 ...<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac-OdxUbeFIoD\">3. \u4f7f\u7528Lua\u8173\u672c<\/h3>\n<p>\u5c0d\u65bc\u66f4\u8907\u96dc\u7684\u522a\u9664\u908f\u8f2f\uff0c\u53ef\u4ee5\u4f7f\u7528Lua\u8173\u672c\u4f86\u6279\u91cf\u522a\u9664\u7121\u6548\u7684Key\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>\nlocal keys = redis.call('KEYS', ARGV[1])\nfor i=1,#keys,5000 do\n    redis.call('UNLINK', unpack(keys, i, math.min(i+4999, #keys)))\nend\n<\/code><\/pre>\n<h2 id=\"%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86%e7%84%a1%e6%95%88key%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-OdxUbeFIoD\">\u5b9a\u671f\u6e05\u7406\u7121\u6548Key\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u70ba\u4e86\u4fdd\u6301Redis\u96c6\u7fa4\u7684\u5065\u5eb7\uff0c\u5efa\u8b70\u5b9a\u671f\u9032\u884c\u7121\u6548Key\u7684\u6e05\u7406\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li>\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\uff0c\u78ba\u4fdd\u4e0d\u518d\u4f7f\u7528\u7684Key\u80fd\u5920\u81ea\u52d5\u904e\u671f\u3002<\/li>\n<li>\u5b9a\u671f\u904b\u884c\u6e05\u7406\u8173\u672c\uff0c\u6aa2\u67e5\u4e26\u522a\u9664\u7121\u6548\u7684Key\u3002<\/li>\n<li>\u76e3\u63a7Redis\u7684\u6027\u80fd\u6307\u6a19\uff0c\u53ca\u6642\u767c\u73fe\u4e26\u8655\u7406\u6027\u80fd\u4e0b\u964d\u7684\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-OdxUbeFIoD\">\u7e3d\u7d50<\/h2>\n<p>\u6e05\u7406Redis\u96c6\u7fa4\u4e2d\u7684\u7121\u6548Key\u662f\u7dad\u6301\u7cfb\u7d71\u6027\u80fd\u548c\u8cc7\u6e90\u5229\u7528\u7387\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u901a\u904e\u5b9a\u671f\u6aa2\u67e5\u548c\u522a\u9664\u7121\u6548\u7684Key\uff0c\u53ef\u4ee5\u78ba\u4fddRedis\u96c6\u7fa4\u7684\u9ad8\u6548\u904b\u884c\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u512a\u5316\u60a8\u7684<em><a href=\"https:\/\/server.hk\">VPS<\/a><\/em>\u6216<em><a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a><\/em>\u7684\u6027\u80fd\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u6e05\u7406Redis\u96c6\u7fa4\uff0c\u79fb\u9664\u7121\u6548\u7684Key\uff0c\u63d0\u5347\u6027\u80fd\u4e26\u91cb\u653e\u5b58\u5132\u7a7a\u9593\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u9ad8\u6548\u904b\u884c\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-172019","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172019","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=172019"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172019\/revisions"}],"predecessor-version":[{"id":172020,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172019\/revisions\/172020"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=172019"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=172019"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=172019"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}