{"id":169739,"date":"2024-11-06T19:38:17","date_gmt":"2024-11-06T11:38:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/169739\/"},"modified":"2024-11-06T19:38:18","modified_gmt":"2024-11-06T11:38:18","slug":"%e6%a8%a1%e7%b3%8a%e6%9f%a5%e8%a9%a2redis%e4%b8%ad%e5%af%a6%e7%8f%bekey%e6%a8%a1%e7%b3%8a%e6%9f%a5%e8%a9%a2%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%88redis%e6%a0%b9%e6%93%9akey%e6%ad%a3%e5%89%87%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/169739\/","title":{"rendered":"\u6a21\u7cca\u67e5\u8a62Redis\u4e2d\u5be6\u73feKey\u6a21\u7cca\u67e5\u8a62\u7684\u65b9\u6cd5\uff08redis\u6839\u64dakey\u6b63\u5247\uff09"},"content":{"rendered":"<h1 id=\"%e6%a8%a1%e7%b3%8a%e6%9f%a5%e8%a9%a2redis%e4%b8%ad%e5%af%a6%e7%8f%bekey%e6%a8%a1%e7%b3%8a%e6%9f%a5%e8%a9%a2%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%88redis%e6%a0%b9%e6%93%9akey%e6%ad%a3%e5%89%87%ef%bc%89-mKmUzkKxDo\">\u6a21\u7cca\u67e5\u8a62Redis\u4e2d\u5be6\u73feKey\u6a21\u7cca\u67e5\u8a62\u7684\u65b9\u6cd5\uff08redis\u6839\u64dakey\u6b63\u5247\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\u3002\u5176\u5feb\u901f\u7684\u6578\u64da\u5b58\u53d6\u80fd\u529b\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u8f15\u9b06\u5730\u7ba1\u7406\u548c\u67e5\u8a62\u6578\u64da\u3002\u7136\u800c\uff0c\u7576\u9700\u8981\u6839\u64da\u7279\u5b9a\u6a21\u5f0f\u67e5\u8a62\u9375\u6642\uff0cRedis\u7684\u539f\u751f\u529f\u80fd\u53ef\u80fd\u6703\u986f\u5f97\u4e0d\u8db3\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Redis\u4e2d\u5be6\u73fe\u6a21\u7cca\u67e5\u8a62\uff0c\u7279\u5225\u662f\u57fa\u65bc\u6b63\u5247\u8868\u9054\u5f0f\u7684\u9375\u67e5\u8a62\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e9%8d%b5%e6%9f%a5%e8%a9%a2-mKmUzkKxDo\">Redis\u7684\u57fa\u672c\u9375\u67e5\u8a62<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u5e7e\u7a2e\u57fa\u672c\u7684\u9375\u67e5\u8a62\u547d\u4ee4\uff0c\u4f8b\u5982 <code>KEYS<\/code> \u548c <code>SCAN<\/code>\u3002\u9019\u4e9b\u547d\u4ee4\u5141\u8a31\u7528\u6236\u6839\u64da\u6a21\u5f0f\u67e5\u8a62\u9375\uff0c\u4f46\u5b83\u5011\u7684\u529f\u80fd\u6709\u9650\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u9032\u884c\u8907\u96dc\u67e5\u8a62\u6642\u3002<\/p>\n<ul>\n<li><code>KEYS<\/code> \u547d\u4ee4\u53ef\u4ee5\u7528\u4f86\u67e5\u8a62\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684\u6240\u6709\u9375\uff0c\u4f46\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u4f7f\u7528\u6642\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u554f\u984c\uff0c\u56e0\u70ba\u5b83\u6703\u963b\u585e\u670d\u52d9\u5668\u3002<\/li>\n<li><code>SCAN<\/code> \u547d\u4ee4\u5247\u63d0\u4f9b\u4e86\u4e00\u7a2e\u975e\u963b\u585e\u7684\u65b9\u5f0f\u4f86\u904d\u6b77\u9375\uff0c\u4f46\u5b83\u4e0d\u652f\u6301\u6b63\u5247\u8868\u9054\u5f0f\uff0c\u53ea\u80fd\u4f7f\u7528\u7c21\u55ae\u7684\u901a\u914d\u7b26\u6a21\u5f0f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac%e9%80%b2%e8%a1%8c%e6%ad%a3%e5%89%87%e6%9f%a5%e8%a9%a2-mKmUzkKxDo\">\u4f7f\u7528Lua\u8173\u672c\u9032\u884c\u6b63\u5247\u67e5\u8a62<\/h2>\n<p>\u7531\u65bcRedis\u4e0d\u76f4\u63a5\u652f\u6301\u6b63\u5247\u8868\u9054\u5f0f\u67e5\u8a62\uff0c\u6211\u5011\u53ef\u4ee5\u5229\u7528Lua\u8173\u672c\u4f86\u5be6\u73fe\u9019\u4e00\u529f\u80fd\u3002Lua\u8173\u672c\u53ef\u4ee5\u5728Redis\u670d\u52d9\u5668\u7aef\u57f7\u884c\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u7db2\u7d61\u5ef6\u9072\u4e26\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac%e9%80%b2%e8%a1%8c%e6%ad%a3%e5%89%87%e6%9f%a5%e8%a9%a2-mKmUzkKxDo\">\u793a\u4f8b\uff1a\u4f7f\u7528Lua\u8173\u672c\u9032\u884c\u6b63\u5247\u67e5\u8a62<\/h3>\n<pre><code>\nlocal pattern = ARGV[1]\nlocal result = {}\nlocal cursor = \"0\"\n\nrepeat\n    local res = redis.call(\"SCAN\", cursor, \"MATCH\", \"*\")\n    cursor = res[1]\n    for _, key in ipairs(res[2]) do\n        if string.match(key, pattern) then\n            table.insert(result, key)\n        end\n    end\nuntil cursor == \"0\"\n\nreturn result\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 <code>SCAN<\/code> \u547d\u4ee4\u904d\u6b77\u6240\u6709\u9375\uff0c\u4e26\u4f7f\u7528 <code>string.match<\/code> \u51fd\u6578\u4f86\u6aa2\u67e5\u6bcf\u500b\u9375\u662f\u5426\u7b26\u5408\u6b63\u5247\u8868\u9054\u5f0f\u6a21\u5f0f\u3002\u9019\u6a23\uff0c\u6211\u5011\u5c31\u80fd\u5920\u7372\u5f97\u6240\u6709\u7b26\u5408\u689d\u4ef6\u7684\u9375\u3002<\/p>\n<h2 id=\"%e6%80%a7%e8%83%bd%e8%80%83%e9%87%8f-mKmUzkKxDo\">\u6027\u80fd\u8003\u91cf<\/h2>\n<p>\u96d6\u7136\u4f7f\u7528Lua\u8173\u672c\u53ef\u4ee5\u5be6\u73fe\u66f4\u9748\u6d3b\u7684\u67e5\u8a62\uff0c\u4f46\u5728\u6027\u80fd\u65b9\u9762\u4ecd\u9700\u8b39\u614e\u8003\u91cf\u3002\u5c0d\u65bc\u5927\u578b\u6578\u64da\u96c6\uff0c\u983b\u7e41\u7684\u6b63\u5247\u67e5\u8a62\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u56e0\u6b64\uff0c\u5efa\u8b70\u5728\u8a2d\u8a08\u6578\u64da\u7d50\u69cb\u6642\uff0c\u5118\u91cf\u4f7f\u7528\u53ef\u9810\u6e2c\u7684\u9375\u547d\u540d\u898f\u5247\uff0c\u4ee5\u6e1b\u5c11\u6a21\u7cca\u67e5\u8a62\u7684\u9700\u6c42\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-mKmUzkKxDo\">\u7d50\u8ad6<\/h2>\n<p>\u5728Redis\u4e2d\u5be6\u73fe\u57fa\u65bc\u6b63\u5247\u8868\u9054\u5f0f\u7684\u9375\u6a21\u7cca\u67e5\u8a62\u96d6\u7136\u4e0d\u662f\u5167\u5efa\u529f\u80fd\uff0c\u4f46\u901a\u904eLua\u8173\u672c\u7684\u65b9\u5f0f\uff0c\u6211\u5011\u53ef\u4ee5\u9748\u6d3b\u5730\u6eff\u8db3\u9019\u4e00\u9700\u6c42\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u63d0\u9ad8\u4e86\u67e5\u8a62\u7684\u9748\u6d3b\u6027\uff0c\u9084\u80fd\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u4fdd\u6301\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u53d6\u7684\u61c9\u7528\u5834\u666f\uff0c\u5408\u7406\u5229\u7528Redis\u7684\u7279\u6027\u5c07\u662f\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u7684\u95dc\u9375\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u53ca\u5176\u61c9\u7528\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u4e2d\u5be6\u73feKey\u6a21\u7cca\u67e5\u8a62\u7684\u65b9\u6cd5\uff0c\u4f7f\u7528\u6b63\u5247\u8868\u9054\u5f0f\u9ad8\u6548\u67e5\u627e\u6240\u9700\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u6aa2\u7d22\u9748\u6d3b\u6027\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-169739","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169739","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=169739"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169739\/revisions"}],"predecessor-version":[{"id":169740,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169739\/revisions\/169740"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=169739"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=169739"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=169739"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}