{"id":175381,"date":"2024-11-08T05:24:16","date_gmt":"2024-11-07T21:24:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175381\/"},"modified":"2024-11-08T05:24:17","modified_gmt":"2024-11-07T21:24:17","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8redis%e6%89%be%e5%88%b0%e6%89%80%e6%9c%89%e7%9a%84key%ef%bc%88%e6%80%8e%e9%ba%bc%e6%89%beredis%e7%9a%84key%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175381\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Redis\u627e\u5230\u6240\u6709\u7684KEY\uff08\u600e\u9ebc\u627eredis\u7684key\uff09"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8redis%e6%89%be%e5%88%b0%e6%89%80%e6%9c%89%e7%9a%84key%ef%bc%88%e6%80%8e%e9%ba%bc%e6%89%beredis%e7%9a%84key%ef%bc%89-GyKyBlCQBf\">\u5982\u4f55\u4f7f\u7528Redis\u627e\u5230\u6240\u6709\u7684KEY\uff08\u600e\u9ebc\u627eredis\u7684key\uff09<\/h1>\n<p>Redis\u662f\u4e00\u500b\u9ad8\u6548\u80fd\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u6578\u64da\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u5206\u6790\u7b49\u5834\u666f\u3002\u5728\u4f7f\u7528Redis\u7684\u904e\u7a0b\u4e2d\uff0c\u7ba1\u7406\u548c\u67e5\u627e\u9375\uff08KEY\uff09\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u7279\u5225\u662f\u5728\u6578\u64da\u91cf\u9f90\u5927\u7684\u60c5\u6cc1\u4e0b\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528Redis\u627e\u5230\u6240\u6709\u7684KEY\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8keys%e5%91%bd%e4%bb%a4-GyKyBlCQBf\">\u4f7f\u7528KEYS\u547d\u4ee4<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u4e00\u500b\u540d\u70ba<code>KEYS<\/code>\u7684\u547d\u4ee4\uff0c\u53ef\u4ee5\u7528\u4f86\u67e5\u627e\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684\u6240\u6709\u9375\u3002\u9019\u500b\u547d\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>KEYS pattern<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>pattern<\/code>\u662f\u7528\u4f86\u5339\u914d\u9375\u7684\u6a21\u5f0f\uff0c\u53ef\u4ee5\u4f7f\u7528\u901a\u914d\u7b26\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><code>*<\/code>\uff1a\u5339\u914d\u96f6\u500b\u6216\u591a\u500b\u5b57\u7b26\u3002<\/li>\n<li><code>?<\/code>\uff1a\u5339\u914d\u4e00\u500b\u5b57\u7b26\u3002<\/li>\n<li><code>[abc]<\/code>\uff1a\u5339\u914d\u65b9\u62ec\u865f\u5167\u7684\u4efb\u610f\u4e00\u500b\u5b57\u7b26\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u60f3\u67e5\u627e\u6240\u6709\u4ee5<code>user:<\/code>\u958b\u982d\u7684\u9375\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>KEYS user:*<\/code><\/pre>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c<code>KEYS<\/code>\u547d\u4ee4\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u554f\u984c\uff0c\u56e0\u70ba\u5b83\u6703\u904d\u6b77\u6574\u500b\u9375\u7a7a\u9593\u3002\u56e0\u6b64\uff0c\u5728\u751f\u7522\u74b0\u5883\u4e2d\uff0c\u5efa\u8b70\u8b39\u614e\u4f7f\u7528\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4-GyKyBlCQBf\">\u4f7f\u7528SCAN\u547d\u4ee4<\/h2>\n<p>\u70ba\u4e86\u907f\u514d<code>KEYS<\/code>\u547d\u4ee4\u7684\u6027\u80fd\u554f\u984c\uff0cRedis\u9084\u63d0\u4f9b\u4e86<code>SCAN<\/code>\u547d\u4ee4\uff0c\u9019\u662f\u4e00\u500b\u66f4\u5b89\u5168\u7684\u9078\u64c7\u3002<code>SCAN<\/code>\u547d\u4ee4\u53ef\u4ee5\u5206\u6279\u6b21\u5730\u904d\u6b77\u9375\u7a7a\u9593\uff0c\u5f9e\u800c\u6e1b\u5c11\u5c0d\u6027\u80fd\u7684\u5f71\u97ff\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SCAN cursor [MATCH pattern] [COUNT count]<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>cursor<\/code>\u662f\u6e38\u6a19\uff0c\u521d\u59cb\u503c\u70ba0\uff1b<code>MATCH<\/code>\u7528\u65bc\u6307\u5b9a\u5339\u914d\u6a21\u5f0f\uff1b<code>COUNT<\/code>\u7528\u65bc\u6307\u5b9a\u6bcf\u6b21\u8fd4\u56de\u7684\u9375\u7684\u6578\u91cf\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528<code>SCAN<\/code>\u547d\u4ee4\u67e5\u627e\u6240\u6709\u4ee5<code>user:<\/code>\u958b\u982d\u7684\u9375\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nlocal cursor = \"0\"\nrepeat\n    local result = redis.call(\"SCAN\", cursor, \"MATCH\", \"user:*\", \"COUNT\", 10)\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\u6703\u5faa\u74b0\u904d\u6b77\u6240\u6709\u7684\u9375\uff0c\u4e26\u6253\u5370\u51fa\u6240\u6709\u4ee5<code>user:<\/code>\u958b\u982d\u7684\u9375\u3002\u9019\u6a23\u7684\u65b9\u5f0f\u4e0d\u6703\u4e00\u6b21\u6027\u52a0\u8f09\u6240\u6709\u7684\u9375\uff0c\u5f9e\u800c\u6e1b\u5c11\u4e86\u5c0d\u6027\u80fd\u7684\u5f71\u97ff\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e5%91%bd%e5%90%8d%e7%a9%ba%e9%96%93-GyKyBlCQBf\">\u4f7f\u7528Redis\u547d\u540d\u7a7a\u9593<\/h2>\n<p>\u5728\u8a2d\u8a08Redis\u9375\u6642\uff0c\u4f7f\u7528\u547d\u540d\u7a7a\u9593\u662f\u4e00\u500b\u826f\u597d\u7684\u7fd2\u6163\u3002\u9019\u6a23\u53ef\u4ee5\u66f4\u65b9\u4fbf\u5730\u7ba1\u7406\u548c\u67e5\u627e\u9375\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528<code>user:1<\/code>\u3001<code>user:2<\/code>\u7b49\u683c\u5f0f\u4f86\u8868\u793a\u4e0d\u540c\u7684\u7528\u6236\u3002\u9019\u6a23\u5728\u67e5\u627e\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528<code>KEYS user:*<\/code>\u6216<code>SCAN<\/code>\u547d\u4ee4\u4f86\u5feb\u901f\u627e\u5230\u6240\u6709\u7528\u6236\u7684\u9375\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GyKyBlCQBf\">\u7e3d\u7d50<\/h2>\n<p>\u5728Redis\u4e2d\u67e5\u627e\u6240\u6709\u7684\u9375\u53ef\u4ee5\u901a\u904e<code>KEYS<\/code>\u548c<code>SCAN<\/code>\u547d\u4ee4\u4f86\u5be6\u73fe\u3002\u96d6\u7136<code>KEYS<\/code>\u547d\u4ee4\u7c21\u55ae\u6613\u7528\uff0c\u4f46\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\uff0c\u56e0\u6b64\u5efa\u8b70\u4f7f\u7528<code>SCAN<\/code>\u547d\u4ee4\u4f86\u9032\u884c\u66f4\u5b89\u5168\u7684\u904d\u6b77\u3002\u6b64\u5916\uff0c\u5408\u7406\u7684\u547d\u540d\u7a7a\u9593\u8a2d\u8a08\u4e5f\u80fd\u5920\u5e6b\u52a9\u6211\u5011\u66f4\u6709\u6548\u5730\u7ba1\u7406\u9375\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684<code>VPS<\/code>\u6216<code>\u9999\u6e2f\u4f3a\u670d\u5668<\/code>\u4f86\u904b\u884cRedis\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u60a8\u53ef\u4ee5\u8a2a\u554f<a href=\"https:\/\/server.hk\">Server.HK<\/a>\u4e86\u89e3\u66f4\u591a\u76f8\u95dc\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4f7f\u7528Redis\u547d\u4ee4\u67e5\u627e\u6240\u6709\u7684KEY\uff0c\u638c\u63e1\u6709\u6548\u7684\u67e5\u627e\u6280\u5de7\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-175381","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175381","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=175381"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175381\/revisions"}],"predecessor-version":[{"id":175382,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175381\/revisions\/175382"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}