{"id":197604,"date":"2024-11-14T09:13:50","date_gmt":"2024-11-14T01:13:50","guid":{"rendered":"https:\/\/server.hk\/cnblog\/197604\/"},"modified":"2024-11-14T09:13:51","modified_gmt":"2024-11-14T01:13:51","slug":"%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e6%a8%a1%e7%b3%8akey%e6%9f%a5%e8%a9%a2%ef%bc%88redis%e6%a8%a1%e7%b3%8akey%e6%9f%a5%e8%a9%a2%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/197604\/","title":{"rendered":"\u5229\u7528Redis\u5be6\u73fe\u6a21\u7ccaKey\u67e5\u8a62\uff08redis\u6a21\u7ccakey\u67e5\u8a62\uff09"},"content":{"rendered":"<h1 id=\"%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e6%a8%a1%e7%b3%8akey%e6%9f%a5%e8%a9%a2%ef%bc%88redis%e6%a8%a1%e7%b3%8akey%e6%9f%a5%e8%a9%a2%ef%bc%89-XdIFJSUcQS\">\u5229\u7528Redis\u5be6\u73fe\u6a21\u7ccaKey\u67e5\u8a62\uff08redis\u6a21\u7ccakey\u67e5\u8a62\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u5feb\u901f\u4e14\u9ad8\u6548\u7684\u6578\u64da\u5b58\u53d6\u662f\u61c9\u7528\u7a0b\u5e8f\u6210\u529f\u7684\u95dc\u9375\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5feb\u901f\u67e5\u8a62\u548c\u5b58\u53d6\u7684\u60c5\u6cc1\u4e0b\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Redis\u5be6\u73fe\u6a21\u7ccaKey\u67e5\u8a62\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%a8%a1%e7%b3%8akey%e6%9f%a5%e8%a9%a2%ef%bc%9f-XdIFJSUcQS\">\u4ec0\u9ebc\u662f\u6a21\u7ccaKey\u67e5\u8a62\uff1f<\/h2>\n<p>\u6a21\u7ccaKey\u67e5\u8a62\u662f\u6307\u5728\u67e5\u8a62\u6578\u64da\u6642\uff0c\u4f7f\u7528\u90e8\u5206\u5339\u914d\u7684\u65b9\u5f0f\u4f86\u7372\u53d6\u7b26\u5408\u689d\u4ef6\u7684\u9375\u3002\u9019\u7a2e\u67e5\u8a62\u65b9\u5f0f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u7279\u5225\u6709\u7528\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u6e1b\u5c11\u67e5\u8a62\u7684\u7cbe\u78ba\u5ea6\u8981\u6c42\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u7684\u9748\u6d3b\u6027\u3002<\/p>\n<h2 id=\"redis%e4%b8%ad%e7%9a%84key%e6%9f%a5%e8%a9%a2-XdIFJSUcQS\">Redis\u4e2d\u7684Key\u67e5\u8a62<\/h2>\n<p>Redis\u672c\u8eab\u4e26\u4e0d\u652f\u6301\u76f4\u63a5\u7684\u6a21\u7cca\u67e5\u8a62\uff0c\u56e0\u70ba\u5b83\u7684\u8a2d\u8a08\u7406\u5ff5\u662f\u9ad8\u6548\u7684\u9375\u503c\u5b58\u53d6\u3002\u7136\u800c\uff0c\u6211\u5011\u53ef\u4ee5\u5229\u7528Redis\u7684\u67d0\u4e9b\u547d\u4ee4\u4f86\u5be6\u73fe\u985e\u4f3c\u7684\u529f\u80fd\u3002\u6700\u5e38\u7528\u7684\u547d\u4ee4\u662f <code>KEYS<\/code> \u548c <code>SCAN<\/code>\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8keys%e5%91%bd%e4%bb%a4-XdIFJSUcQS\">\u4f7f\u7528KEYS\u547d\u4ee4<\/h3>\n<p><code>KEYS<\/code>\u547d\u4ee4\u53ef\u4ee5\u7528\u4f86\u67e5\u8a62\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684\u6240\u6709\u9375\u3002\u5176\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>KEYS pattern<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u60f3\u67e5\u8a62\u6240\u6709\u4ee5\u201cuser:\u201d\u958b\u982d\u7684\u9375\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>KEYS user:*<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u6240\u6709\u4ee5\u201cuser:\u201d\u958b\u982d\u7684\u9375\u3002\u7136\u800c\uff0c<code>KEYS<\/code>\u547d\u4ee4\u5728\u5927\u6578\u64da\u91cf\u7684\u60c5\u6cc1\u4e0b\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u554f\u984c\uff0c\u56e0\u70ba\u5b83\u6703\u963b\u585eRedis\u670d\u52d9\u5668\uff0c\u76f4\u5230\u6240\u6709\u9375\u90fd\u88ab\u6aa2\u7d22\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4-XdIFJSUcQS\">\u4f7f\u7528SCAN\u547d\u4ee4<\/h3>\n<p>\u70ba\u4e86\u89e3\u6c7a<code>KEYS<\/code>\u547d\u4ee4\u7684\u6027\u80fd\u554f\u984c\uff0cRedis\u63d0\u4f9b\u4e86<code>SCAN<\/code>\u547d\u4ee4\u3002<code>SCAN<\/code>\u547d\u4ee4\u4ee5\u589e\u91cf\u7684\u65b9\u5f0f\u904d\u6b77\u9375\u7a7a\u9593\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u963b\u585e\u554f\u984c\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SCAN cursor [MATCH pattern] [COUNT count]<\/code><\/pre>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528<code>SCAN<\/code>\u547d\u4ee4\u7684\u793a\u4f8b\uff0c\u67e5\u8a62\u6240\u6709\u4ee5\u201cuser:\u201d\u958b\u982d\u7684\u9375\uff1a<\/p>\n<pre><code>\nlocal cursor = \"0\"\nrepeat\n    local result = redis.call(\"SCAN\", cursor, \"MATCH\", \"user:*\")\n    cursor = result[1]\n    for _, key in ipairs(result[2]) do\n        print(key)\n    end\nuntil cursor == \"0\"\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u5faa\u74b0\u904d\u6b77\u6240\u6709\u9375\uff0c\u4e26\u6253\u5370\u51fa\u6240\u6709\u4ee5\u201cuser:\u201d\u958b\u982d\u7684\u9375\uff0c\u76f4\u5230\u904d\u6b77\u5b8c\u6210\u3002<\/p>\n<h2 id=\"%e6%a8%a1%e7%b3%8a%e6%9f%a5%e8%a9%a2%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-XdIFJSUcQS\">\u6a21\u7cca\u67e5\u8a62\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u6a21\u7ccaKey\u67e5\u8a62\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><strong>\u7528\u6236\u8cc7\u6599\u6aa2\u7d22\uff1a<\/strong>\u5728\u793e\u4ea4\u5a92\u9ad4\u61c9\u7528\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u6839\u64da\u7528\u6236\u540d\u7684\u90e8\u5206\u4fe1\u606f\u4f86\u67e5\u8a62\u7528\u6236\u8cc7\u6599\u3002<\/li>\n<li><strong>\u5546\u54c1\u641c\u7d22\uff1a<\/strong>\u5728\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u4e2d\uff0c\u6839\u64da\u7528\u6236\u8f38\u5165\u7684\u95dc\u9375\u5b57\u4f86\u67e5\u8a62\u76f8\u95dc\u5546\u54c1\u3002<\/li>\n<li><strong>\u65e5\u8a8c\u7ba1\u7406\uff1a<\/strong>\u5728\u65e5\u8a8c\u7cfb\u7d71\u4e2d\uff0c\u6839\u64da\u65e5\u8a8c\u985e\u578b\u6216\u6642\u9593\u7bc4\u570d\u4f86\u6aa2\u7d22\u76f8\u95dc\u65e5\u8a8c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-XdIFJSUcQS\">\u7e3d\u7d50<\/h2>\n<p>\u5229\u7528Redis\u5be6\u73fe\u6a21\u7ccaKey\u67e5\u8a62\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u6578\u64da\u6aa2\u7d22\u7684\u9748\u6d3b\u6027\u548c\u6548\u7387\u3002\u96d6\u7136Redis\u672c\u8eab\u4e0d\u652f\u6301\u76f4\u63a5\u7684\u6a21\u7cca\u67e5\u8a62\uff0c\u4f46\u901a\u904e<code>KEYS<\/code>\u548c<code>SCAN<\/code>\u547d\u4ee4\uff0c\u6211\u5011\u53ef\u4ee5\u5be6\u73fe\u985e\u4f3c\u7684\u529f\u80fd\u3002\u5728\u9078\u64c7\u4f7f\u7528\u9019\u4e9b\u547d\u4ee4\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u6839\u64da\u5177\u9ad4\u7684\u61c9\u7528\u5834\u666f\u548c\u6578\u64da\u91cf\u4f86\u8003\u616e\u6027\u80fd\u554f\u984c\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684Redis\u670d\u52d9\u5668\uff0c\u4eab\u53d7\u66f4\u5feb\u7684\u6578\u64da\u5b58\u53d6\u901f\u5ea6\u548c\u66f4\u9ad8\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5229\u7528Redis\u5be6\u73fe\u6a21\u7ccaKey\u67e5\u8a62\uff0c\u63d0\u5347\u6578\u64da\u6aa2\u7d22\u6548\u7387\uff0c\u7c21\u5316\u958b\u767c\u6d41\u7a0b\uff0c\u512a\u5316\u61c9\u7528\u6027\u80fd\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-197604","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/197604","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=197604"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/197604\/revisions"}],"predecessor-version":[{"id":197605,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/197604\/revisions\/197605"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=197604"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=197604"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=197604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}