{"id":162249,"date":"2024-11-04T13:27:20","date_gmt":"2024-11-04T05:27:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162249\/"},"modified":"2024-11-04T13:27:21","modified_gmt":"2024-11-04T05:27:21","slug":"%e6%aa%a2%e7%b4%a2-redis-%e4%b8%ad%e6%89%80%e6%9c%89-keys-%e7%9a%84%e5%af%a6%e7%8f%be%e6%96%b9%e6%b3%95%ef%bc%88%e6%9f%a5%e7%9c%8b-redis-%e6%89%80%e6%9c%89-key%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162249\/","title":{"rendered":"\u6aa2\u7d22 Redis \u4e2d\u6240\u6709 Keys \u7684\u5be6\u73fe\u65b9\u6cd5\uff08\u67e5\u770b redis \u6240\u6709 key\uff09"},"content":{"rendered":"<h1 id=\"%e6%aa%a2%e7%b4%a2-redis-%e4%b8%ad%e6%89%80%e6%9c%89-keys-%e7%9a%84%e5%af%a6%e7%8f%be%e6%96%b9%e6%b3%95%ef%bc%88%e6%9f%a5%e7%9c%8b-redis-%e6%89%80%e6%9c%89-key%ef%bc%89-IlYcuSVWvz\">\u6aa2\u7d22 Redis \u4e2d\u6240\u6709 Keys \u7684\u5be6\u73fe\u65b9\u6cd5\uff08\u67e5\u770b redis \u6240\u6709 key\uff09<\/h1>\n<p>Redis \u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u5834\u666f\u3002\u4f5c\u70ba\u4e00\u500b\u958b\u767c\u8005\u6216\u7cfb\u7d71\u7ba1\u7406\u54e1\uff0c\u4e86\u89e3\u5982\u4f55\u6aa2\u7d22 Redis \u4e2d\u7684\u6240\u6709\u9375\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u6578\u64da\u7ba1\u7406\uff0c\u9084\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5e7e\u7a2e\u6aa2\u7d22 Redis \u4e2d\u6240\u6709\u9375\u7684\u65b9\u6cd5\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2>\u4f7f\u7528 <code>KEYS<\/code> \u547d\u4ee4<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u4e00\u500b\u7c21\u55ae\u7684\u547d\u4ee4 <code>KEYS<\/code>\uff0c\u53ef\u4ee5\u7528\u4f86\u6aa2\u7d22\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\u4e00\u500b\u5339\u914d\u6a21\u5f0f\uff0c\u53ef\u4ee5\u4f7f\u7528\u901a\u914d\u7b26\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60f3\u8981\u6aa2\u7d22\u6240\u6709\u9375\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>*<\/code> \u4f5c\u70ba\u6a21\u5f0f\uff1a<\/p>\n<pre><code>KEYS *<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de Redis \u4e2d\u7684\u6240\u6709\u9375\u3002\u7136\u800c\uff0c\u4f7f\u7528 <code>KEYS<\/code> \u547d\u4ee4\u6642\u9700\u8981\u6ce8\u610f\uff0c\u9019\u500b\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<\/p>\n<h2>\u4f7f\u7528 <code>SCAN<\/code> \u547d\u4ee4<\/h2>\n<p>\u70ba\u4e86\u907f\u514d <code>KEYS<\/code> \u547d\u4ee4\u5e36\u4f86\u7684\u6027\u80fd\u554f\u984c\uff0cRedis \u63d0\u4f9b\u4e86 <code>SCAN<\/code> \u547d\u4ee4\u3002\u9019\u500b\u547d\u4ee4\u53ef\u4ee5\u5206\u6279\u6aa2\u7d22\u9375\uff0c\u5f9e\u800c\u6e1b\u5c11\u5c0d\u6027\u80fd\u7684\u5f71\u97ff\u3002<code>SCAN<\/code> \u547d\u4ee4\u7684\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\u70ba 0\u3002<code>MATCH<\/code> \u7528\u65bc\u6307\u5b9a\u5339\u914d\u6a21\u5f0f\uff0c<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\u6aa2\u7d22\u6240\u6709\u9375\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nlocal cursor = \"0\"\nrepeat\n    local result = redis.call(\"SCAN\", cursor)\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\u6aa2\u7d22\u6240\u6709\u9375\uff0c\u76f4\u5230\u6e38\u6a19\u8fd4\u56de\u5230\u521d\u59cb\u503c 0\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-redis-%e5%ae%a2%e6%88%b6%e7%ab%af%e5%ba%ab-IlYcuSVWvz\">\u4f7f\u7528 Redis \u5ba2\u6236\u7aef\u5eab<\/h2>\n<p>\u8a31\u591a\u7de8\u7a0b\u8a9e\u8a00\u90fd\u6709 Redis \u7684\u5ba2\u6236\u7aef\u5eab\uff0c\u9019\u4e9b\u5eab\u901a\u5e38\u63d0\u4f9b\u4e86\u7c21\u5316\u7684\u63a5\u53e3\u4f86\u57f7\u884c Redis \u547d\u4ee4\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 Python \u7684 <code>redis-py<\/code> \u5eab\u6aa2\u7d22\u6240\u6709\u9375\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nimport redis\n\n# \u9023\u63a5\u5230 Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u4f7f\u7528 SCAN \u547d\u4ee4\u6aa2\u7d22\u6240\u6709\u9375\ncursor = 0\nwhile True:\n    cursor, keys = r.scan(cursor)\n    for key in keys:\n        print(key)\n    if cursor == 0:\n        break\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u9023\u63a5\u5230\u672c\u5730\u7684 Redis \u670d\u52d9\u5668\uff0c\u4e26\u4f7f\u7528 <code>SCAN<\/code> \u547d\u4ee4\u6aa2\u7d22\u6240\u6709\u9375\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-IlYcuSVWvz\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Redis \u4e2d\u6aa2\u7d22\u6240\u6709\u9375\u7684\u65b9\u6cd5\u4e3b\u8981\u6709\u5169\u7a2e\uff1a\u4f7f\u7528 <code>KEYS<\/code> \u547d\u4ee4\u548c\u4f7f\u7528 <code>SCAN<\/code> \u547d\u4ee4\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\u9032\u884c\u5206\u6279\u6aa2\u7d22\u3002\u6b64\u5916\uff0c\u5229\u7528\u5404\u7a2e\u7de8\u7a0b\u8a9e\u8a00\u7684 Redis \u5ba2\u6236\u7aef\u5eab\uff0c\u53ef\u4ee5\u66f4\u65b9\u4fbf\u5730\u5be6\u73fe\u9375\u7684\u6aa2\u7d22\u529f\u80fd\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\u9069\u5408\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 Redis \u4e2d\u6aa2\u7d22\u6240\u6709 Keys \u7684\u5be6\u73fe\u65b9\u6cd5\uff0c\u8f15\u9b06\u67e5\u770b\u548c\u7ba1\u7406\u60a8\u7684\u6578\u64da\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-162249","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162249","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=162249"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162249\/revisions"}],"predecessor-version":[{"id":162250,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162249\/revisions\/162250"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162249"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}