{"id":131619,"date":"2024-10-30T20:49:15","date_gmt":"2024-10-30T12:49:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/131619\/"},"modified":"2024-10-30T20:49:16","modified_gmt":"2024-10-30T12:49:16","slug":"redis%e9%99%90%e5%88%b6key%e6%9c%80%e5%a4%a7%e5%80%bc%e7%9a%84%e7%ae%a1%e7%90%86%e7%ad%96%e7%95%a5%ef%bc%88redis%e9%99%90%e5%88%b6key%e5%80%8b%e6%95%b8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/131619\/","title":{"rendered":"Redis\u9650\u5236Key\u6700\u5927\u503c\u7684\u7ba1\u7406\u7b56\u7565\uff08redis\u9650\u5236key\u500b\u6578\uff09"},"content":{"rendered":"<h1 id=\"redis%e9%99%90%e5%88%b6key%e6%9c%80%e5%a4%a7%e5%80%bc%e7%9a%84%e7%ae%a1%e7%90%86%e7%ad%96%e7%95%a5%ef%bc%88redis%e9%99%90%e5%88%b6key%e5%80%8b%e6%95%b8%ef%bc%89-XyktHXvOHp\">Redis\u9650\u5236Key\u6700\u5927\u503c\u7684\u7ba1\u7406\u7b56\u7565\uff08redis\u9650\u5236key\u500b\u6578\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u3002\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u589e\u9577\uff0c\u7ba1\u7406Redis\u4e2d\u7684Key\u6578\u91cf\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u9650\u5236Key\u6700\u5927\u503c\u7684\u7ba1\u7406\u7b56\u7565\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u63a7\u5236\u548c\u512a\u5316\u5176\u6578\u64da\u5b58\u5132\u3002<\/p>\n<h2 id=\"redis%e7%9a%84key%e9%99%90%e5%88%b6%e6%a6%82%e8%bf%b0-XyktHXvOHp\">Redis\u7684Key\u9650\u5236\u6982\u8ff0<\/h2>\n<p>Redis\u672c\u8eab\u4e26\u4e0d\u5c0dKey\u7684\u6578\u91cf\u8a2d\u7f6e\u660e\u78ba\u7684\u4e0a\u9650\uff0c\u4f46\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0cKey\u7684\u6578\u91cf\u6703\u53d7\u5230\u53ef\u7528\u5167\u5b58\u7684\u9650\u5236\u3002\u7576Key\u7684\u6578\u91cf\u904e\u591a\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u751a\u81f3\u5f71\u97ff\u6574\u500b\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002\u56e0\u6b64\uff0c\u5408\u7406\u7ba1\u7406Key\u7684\u6578\u91cf\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002<\/p>\n<h2 id=\"%e7%ae%a1%e7%90%86key%e6%95%b8%e9%87%8f%e7%9a%84%e7%ad%96%e7%95%a5-XyktHXvOHp\">\u7ba1\u7406Key\u6578\u91cf\u7684\u7b56\u7565<\/h2>\n<h3 id=\"1-%e8%a8%ad%e5%ae%9a%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-XyktHXvOHp\">1. \u8a2d\u5b9a\u904e\u671f\u6642\u9593<\/h3>\n<p>Redis\u63d0\u4f9b\u4e86\u8a2d\u7f6eKey\u904e\u671f\u6642\u9593\u7684\u529f\u80fd\uff0c\u9019\u53ef\u4ee5\u5e6b\u52a9\u81ea\u52d5\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u3002\u4f7f\u7528<code>EXPIRE<\/code>\u547d\u4ee4\u53ef\u4ee5\u70ba\u7279\u5b9a\u7684Key\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u7576\u6642\u9593\u5230\u9054\u5f8c\uff0c\u8a72Key\u5c07\u81ea\u52d5\u88ab\u522a\u9664\u3002<\/p>\n<pre><code>EXPIRE mykey 60  # \u8a2d\u7f6emykey\u572860\u79d2\u5f8c\u904e\u671f\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8lru%ef%bc%88%e6%9c%80%e8%bf%91%e6%9c%80%e5%b0%91%e4%bd%bf%e7%94%a8%ef%bc%89%e7%ad%96%e7%95%a5-XyktHXvOHp\">2. \u4f7f\u7528LRU\uff08\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7b56\u7565<\/h3>\n<p>Redis\u652f\u6301LRU\u9a45\u9010\u7b56\u7565\uff0c\u9019\u610f\u5473\u8457\u7576\u5167\u5b58\u9054\u5230\u9650\u5236\u6642\uff0cRedis\u6703\u81ea\u52d5\u522a\u9664\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684Key\u3002\u9019\u53ef\u4ee5\u901a\u904e\u8a2d\u7f6e<code>maxmemory-policy<\/code>\u4f86\u5be6\u73fe\u3002<\/p>\n<pre><code>CONFIG SET maxmemory-policy allkeys-lru  # \u8a2d\u7f6eLRU\u7b56\u7565\n<\/code><\/pre>\n<h3 id=\"3-%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86%e7%84%a1%e7%94%a8key-XyktHXvOHp\">3. \u5b9a\u671f\u6e05\u7406\u7121\u7528Key<\/h3>\n<p>\u9664\u4e86\u81ea\u52d5\u904e\u671f\u548cLRU\u7b56\u7565\uff0c\u5b9a\u671f\u624b\u52d5\u6e05\u7406\u7121\u7528\u7684Key\u4e5f\u662f\u4e00\u7a2e\u6709\u6548\u7684\u7ba1\u7406\u7b56\u7565\u3002\u53ef\u4ee5\u4f7f\u7528<code>SCAN<\/code>\u547d\u4ee4\u4f86\u904d\u6b77\u6240\u6709Key\uff0c\u4e26\u6839\u64da\u696d\u52d9\u908f\u8f2f\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684Key\u3002<\/p>\n<pre><code>SCAN 0 MATCH myprefix:* COUNT 100  # \u904d\u6b77\u4ee5myprefix:\u958b\u982d\u7684Key\n<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e5%91%bd%e5%90%8d%e7%a9%ba%e9%96%93-XyktHXvOHp\">4. \u4f7f\u7528\u547d\u540d\u7a7a\u9593<\/h3>\n<p>\u70ba\u4e86\u66f4\u597d\u5730\u7ba1\u7406Key\uff0c\u53ef\u4ee5\u4f7f\u7528\u547d\u540d\u7a7a\u9593\u4f86\u7d44\u7e54Key\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u524d\u7db4\u4f86\u6a19\u8b58\u4e0d\u540c\u7684\u61c9\u7528\u6216\u6a21\u584a\uff0c\u9019\u6a23\u5728\u6e05\u7406\u6642\u53ef\u4ee5\u66f4\u65b9\u4fbf\u5730\u522a\u9664\u7279\u5b9a\u7bc4\u570d\u5167\u7684Key\u3002<\/p>\n<pre><code>SET user:1001 \"Alice\"  # \u4f7f\u7528\u547d\u540d\u7a7a\u9593\nSET user:1002 \"Bob\"\n<\/code><\/pre>\n<h2 id=\"%e6%80%a7%e8%83%bd%e8%80%83%e9%87%8f-XyktHXvOHp\">\u6027\u80fd\u8003\u91cf<\/h2>\n<p>\u5728\u7ba1\u7406Key\u7684\u904e\u7a0b\u4e2d\uff0c\u6027\u80fd\u662f\u9700\u8981\u8003\u616e\u7684\u91cd\u8981\u56e0\u7d20\u3002\u904e\u591a\u7684Key\u6703\u5c0e\u81f4Redis\u7684\u67e5\u8a62\u548c\u64cd\u4f5c\u8b8a\u6162\uff0c\u56e0\u6b64\u5728\u8a2d\u8a08\u6578\u64da\u7d50\u69cb\u6642\uff0c\u61c9\u8a72\u8003\u616e\u5230Key\u7684\u6578\u91cf\u548c\u5b58\u5132\u6548\u7387\u3002\u4f7f\u7528\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\uff08\u5982Hash\u3001List\u7b49\uff09\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11Key\u7684\u6578\u91cf\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-XyktHXvOHp\">\u7d50\u8ad6<\/h2>\n<p>\u7e3d\u4e4b\uff0c\u5408\u7406\u7ba1\u7406Redis\u4e2d\u7684Key\u6578\u91cf\u5c0d\u65bc\u4fdd\u6301\u7cfb\u7d71\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3001\u4f7f\u7528LRU\u7b56\u7565\u3001\u5b9a\u671f\u6e05\u7406\u7121\u7528Key\u4ee5\u53ca\u4f7f\u7528\u547d\u540d\u7a7a\u9593\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236Key\u7684\u6578\u91cf\uff0c\u5f9e\u800c\u512a\u5316Redis\u7684\u4f7f\u7528\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u7ba1\u7406\u60a8\u7684\u6578\u64da\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u548c\u9748\u6d3b\u7684\u8cc7\u6e90\u914d\u7f6e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u4e2d\u9650\u5236Key\u6700\u5927\u503c\u7684\u7ba1\u7406\u7b56\u7565\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u63a7\u5236Key\u4e2a\u6570\u4ee5\u4f18\u5316\u6027\u80fd\u548c\u8d44\u6e90\u4f7f\u7528\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-131619","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/131619","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=131619"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/131619\/revisions"}],"predecessor-version":[{"id":131620,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/131619\/revisions\/131620"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=131619"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=131619"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=131619"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}