{"id":164989,"date":"2024-11-05T10:30:22","date_gmt":"2024-11-05T02:30:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/164989\/"},"modified":"2024-11-05T10:30:24","modified_gmt":"2024-11-05T02:30:24","slug":"%e9%96%8b%e5%95%9fredis%e6%89%be%e5%87%ba%e9%87%8d%e8%a4%87key%ef%bc%88redis%e6%9f%a5%e8%a9%a2%e9%87%8d%e8%a4%87key%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/164989\/","title":{"rendered":"\u958b\u555fRedis\u627e\u51fa\u91cd\u8907Key\uff08redis\u67e5\u8a62\u91cd\u8907key\uff09"},"content":{"rendered":"<h1 id=\"%e9%96%8b%e5%95%9fredis%e6%89%be%e5%87%ba%e9%87%8d%e8%a4%87key%ef%bc%88redis%e6%9f%a5%e8%a9%a2%e9%87%8d%e8%a4%87key%ef%bc%89-duHBanmTVx\">\u958b\u555fRedis\u627e\u51fa\u91cd\u8907Key\uff08redis\u67e5\u8a62\u91cd\u8907key\uff09<\/h1>\n<p>\u5728\u4f7f\u7528Redis\u4f5c\u70ba\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u6642\uff0c\u91cd\u8907\u7684Key\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u6027\u548c\u6027\u80fd\u554f\u984c\u3002Redis\u662f\u4e00\u500b\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\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Redis\u4e2d\u67e5\u627e\u91cd\u8907\u7684Key\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%9f%a5%e6%89%be%e9%87%8d%e8%a4%87key-duHBanmTVx\">\u70ba\u4ec0\u9ebc\u9700\u8981\u67e5\u627e\u91cd\u8907Key<\/h2>\n<p>\u91cd\u8907\u7684Key\u53ef\u80fd\u6703\u5c0e\u81f4\u4ee5\u4e0b\u554f\u984c\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u4e0d\u4e00\u81f4\u6027\uff1a<\/strong>\u7576\u591a\u500bKey\u6307\u5411\u76f8\u540c\u7684\u6578\u64da\u6642\uff0c\u66f4\u65b0\u5176\u4e2d\u4e00\u500bKey\u7684\u503c\u53ef\u80fd\u4e0d\u6703\u53cd\u6620\u5728\u5176\u4ed6Key\u4e0a\uff0c\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002<\/li>\n<li><strong>\u6027\u80fd\u554f\u984c\uff1a<\/strong>\u67e5\u8a62\u548c\u64cd\u4f5c\u91cd\u8907\u7684Key\u6703\u589e\u52a0Redis\u7684\u8ca0\u64d4\uff0c\u5f71\u97ff\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u6d6a\u8cbb\uff1a<\/strong>\u91cd\u8907\u7684Key\u6703\u4f54\u7528\u984d\u5916\u7684\u5167\u5b58\u8cc7\u6e90\uff0c\u964d\u4f4e\u7cfb\u7d71\u7684\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%9f%a5%e6%89%be%e9%87%8d%e8%a4%87key%e7%9a%84%e6%96%b9%e6%b3%95-duHBanmTVx\">\u67e5\u627e\u91cd\u8907Key\u7684\u65b9\u6cd5<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u67e5\u627e\u91cd\u8907Key\u7684\u904e\u7a0b\u4e26\u4e0d\u76f4\u63a5\uff0c\u56e0\u70baRedis\u672c\u8eab\u4e26\u4e0d\u63d0\u4f9b\u67e5\u8a62\u91cd\u8907Key\u7684\u5167\u5efa\u547d\u4ee4\u3002\u7136\u800c\uff0c\u6211\u5011\u53ef\u4ee5\u901a\u904e\u4e00\u4e9b\u9593\u63a5\u7684\u65b9\u6cd5\u4f86\u5be6\u73fe\u9019\u4e00\u76ee\u6a19\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4-duHBanmTVx\">\u4f7f\u7528SCAN\u547d\u4ee4<\/h3>\n<p>Redis\u7684SCAN\u547d\u4ee4\u53ef\u4ee5\u7528\u4f86\u904d\u6b77\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709Key\u3002\u9019\u662f\u4e00\u500b\u975e\u963b\u585e\u7684\u547d\u4ee4\uff0c\u9069\u5408\u7528\u65bc\u5927\u6578\u64da\u96c6\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528SCAN\u547d\u4ee4\u67e5\u627e\u91cd\u8907Key\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>redis-cli SCAN 0<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u5c07\u8fd4\u56de\u4e00\u7d44Key\u548c\u6e38\u6a19\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u9019\u500b\u6e38\u6a19\u4f86\u7e7c\u7e8c\u904d\u6b77\u6240\u6709\u7684Key\u3002\u70ba\u4e86\u67e5\u627e\u91cd\u8907\u7684Key\uff0c\u4f60\u9700\u8981\u5c07\u6240\u6709\u7684Key\u5b58\u5132\u5728\u4e00\u500b\u96c6\u5408\u4e2d\uff0c\u7136\u5f8c\u6aa2\u67e5\u662f\u5426\u6709\u91cd\u8907\u7684\u9805\u76ee\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac-duHBanmTVx\">\u4f7f\u7528Lua\u8173\u672c<\/h3>\n<p>\u53e6\u4e00\u7a2e\u67e5\u627e\u91cd\u8907Key\u7684\u65b9\u6cd5\u662f\u4f7f\u7528Lua\u8173\u672c\u3002\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u5728Redis\u670d\u52d9\u5668\u7aef\u57f7\u884c\uff0c\u5f9e\u800c\u6e1b\u5c11\u7db2\u7d61\u5ef6\u9072\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Lua\u8173\u672c\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nlocal keys = redis.call('KEYS', '*')\nlocal seen = {}\nlocal duplicates = {}\n\nfor i=1, #keys do\n    if seen[keys[i]] then\n        table.insert(duplicates, keys[i])\n    else\n        seen[keys[i]] = true\n    end\nend\n\nreturn duplicates\n<\/code><\/pre>\n<p>\u9019\u6bb5\u8173\u672c\u5c07\u8fd4\u56de\u6240\u6709\u91cd\u8907\u7684Key\u3002\u4f60\u53ef\u4ee5\u901a\u904eRedis\u7684EVAL\u547d\u4ee4\u4f86\u57f7\u884c\u9019\u500b\u8173\u672c\uff1a<\/p>\n<pre><code>redis-cli EVAL \"local keys = redis.call('KEYS', '*') ... \" 0<\/code><\/pre>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-duHBanmTVx\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u70ba\u4e86\u907f\u514d\u91cd\u8907Key\u7684\u554f\u984c\uff0c\u5efa\u8b70\u9075\u5faa\u4ee5\u4e0b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u547d\u540d\u7a7a\u9593\uff1a<\/strong>\u5728\u8a2d\u8a08Key\u6642\uff0c\u4f7f\u7528\u547d\u540d\u7a7a\u9593\u53ef\u4ee5\u6709\u6548\u907f\u514d\u91cd\u8907\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u201cuser:1001:name\u201d\u800c\u4e0d\u662f\u201cname\u201d\u3002<\/li>\n<li><strong>\u5b9a\u671f\u6e05\u7406\uff1a<\/strong>\u5b9a\u671f\u6aa2\u67e5\u548c\u6e05\u7406\u4e0d\u518d\u4f7f\u7528\u7684Key\uff0c\u4ee5\u6e1b\u5c11\u91cd\u8907\u7684\u53ef\u80fd\u6027\u3002<\/li>\n<li><strong>\u4f7f\u7528Hash\u7d50\u69cb\uff1a<\/strong>\u5982\u679c\u9700\u8981\u5b58\u5132\u591a\u500b\u5c6c\u6027\uff0c\u8003\u616e\u4f7f\u7528Hash\u7d50\u69cb\uff0c\u9019\u6a23\u53ef\u4ee5\u5c07\u591a\u500b\u5c6c\u6027\u5b58\u5132\u5728\u540c\u4e00\u500bKey\u4e0b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-duHBanmTVx\">\u7e3d\u7d50<\/h2>\n<p>\u67e5\u627e\u91cd\u8907Key\u5728Redis\u4e2d\u662f\u4e00\u500b\u91cd\u8981\u7684\u7dad\u8b77\u4efb\u52d9\uff0c\u53ef\u4ee5\u5e6b\u52a9\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u7cfb\u7d71\u7684\u6027\u80fd\u3002\u901a\u904e\u4f7f\u7528SCAN\u547d\u4ee4\u548cLua\u8173\u672c\uff0c\u6211\u5011\u53ef\u4ee5\u6709\u6548\u5730\u8b58\u5225\u548c\u8655\u7406\u91cd\u8907\u7684Key\u3002\u9075\u5faa\u6700\u4f73\u5be6\u8e10\u53ef\u4ee5\u9032\u4e00\u6b65\u6e1b\u5c11\u91cd\u8907Key\u7684\u51fa\u73fe\uff0c\u63d0\u5347\u7cfb\u7d71\u7684\u6574\u9ad4\u6548\u7387\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\u7684Redis\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\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728Redis\u4e2d\u67e5\u8a62\u548c\u627e\u51fa\u91cd\u8907\u7684Key\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u907f\u514d\u91cd\u8907\u6578\u64da\u5e36\u4f86\u7684\u554f\u984c\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-164989","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164989","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=164989"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164989\/revisions"}],"predecessor-version":[{"id":164990,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164989\/revisions\/164990"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=164989"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=164989"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=164989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}