{"id":194059,"date":"2024-11-13T03:25:18","date_gmt":"2024-11-12T19:25:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/194059\/"},"modified":"2024-11-13T03:25:19","modified_gmt":"2024-11-12T19:25:19","slug":"%e4%b8%80%e9%8d%b5%e6%b8%85%e7%a9%baredis%e6%8c%87%e5%ae%9a%e6%95%b8%e6%93%9a%e7%9a%84%e5%84%aa%e9%9b%85%e6%96%b9%e6%b3%95%ef%bc%88redis%e6%b8%85%e7%a9%ba%e6%8c%87%e5%ae%9a%e6%95%b8%e6%93%9a%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/194059\/","title":{"rendered":"\u4e00\u9375\u6e05\u7a7aRedis\u6307\u5b9a\u6578\u64da\u7684\u512a\u96c5\u65b9\u6cd5\uff08redis\u6e05\u7a7a\u6307\u5b9a\u6578\u64da\uff09"},"content":{"rendered":"<h1 id=\"%e4%b8%80%e9%8d%b5%e6%b8%85%e7%a9%baredis%e6%8c%87%e5%ae%9a%e6%95%b8%e6%93%9a%e7%9a%84%e5%84%aa%e9%9b%85%e6%96%b9%e6%b3%95-BcgCdtdLvi\">\u4e00\u9375\u6e05\u7a7aRedis\u6307\u5b9a\u6578\u64da\u7684\u512a\u96c5\u65b9\u6cd5<\/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\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u7ba1\u7406\u548c\u6e05\u7406\u6578\u64da\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u512a\u96c5\u5730\u6e05\u7a7aRedis\u4e2d\u6307\u5b9a\u7684\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"redis%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b%e7%b0%a1%e4%bb%8b-BcgCdtdLvi\">Redis\u6578\u64da\u7d50\u69cb\u7c21\u4ecb<\/h2>\n<p>\u5728\u6df1\u5165\u6e05\u7a7a\u6307\u5b9a\u6578\u64da\u7684\u65b9\u6cd5\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3Redis\u7684\u57fa\u672c\u6578\u64da\u7d50\u69cb\u3002Redis\u652f\u6301\u591a\u7a2e\u6578\u64da\u985e\u578b\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u5b57\u7b26\u4e32\uff08String\uff09<\/li>\n<li><strong>\u54c8\u5e0c\uff08Hash\uff09<\/li>\n<li><strong>\u5217\u8868\uff08List\uff09<\/li>\n<li><strong>\u96c6\u5408\uff08Set\uff09<\/li>\n<li><strong>\u6709\u5e8f\u96c6\u5408\uff08Sorted Set\uff09<\/li>\n<\/ul>\n<p>\u6bcf\u7a2e\u6578\u64da\u985e\u578b\u90fd\u6709\u5176\u7279\u5b9a\u7684\u64cd\u4f5c\u65b9\u6cd5\uff0c\u9019\u4e9b\u64cd\u4f5c\u65b9\u6cd5\u53ef\u4ee5\u5e6b\u52a9\u6211\u5011\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002<\/p>\n<h2 id=\"%e6%b8%85%e7%a9%ba%e6%8c%87%e5%ae%9a%e6%95%b8%e6%93%9a%e7%9a%84%e9%9c%80%e6%b1%82-BcgCdtdLvi\">\u6e05\u7a7a\u6307\u5b9a\u6578\u64da\u7684\u9700\u6c42<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6211\u5011\u53ef\u80fd\u9700\u8981\u6e05\u7a7aRedis\u4e2d\u7684\u7279\u5b9a\u6578\u64da\u3002\u4f8b\u5982\uff0c\u7576\u67d0\u500b\u61c9\u7528\u7a0b\u5e8f\u7684\u6578\u64da\u7d50\u69cb\u767c\u751f\u8b8a\u5316\u6642\uff0c\u820a\u6578\u64da\u53ef\u80fd\u6703\u5c0e\u81f4\u932f\u8aa4\u6216\u4e0d\u4e00\u81f4\u3002\u9019\u6642\uff0c\u6211\u5011\u9700\u8981\u4e00\u7a2e\u7c21\u55ae\u800c\u6709\u6548\u7684\u65b9\u6cd5\u4f86\u522a\u9664\u9019\u4e9b\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e5%91%bd%e4%bb%a4%e6%b8%85%e7%a9%ba%e6%8c%87%e5%ae%9a%e6%95%b8%e6%93%9a-BcgCdtdLvi\">\u4f7f\u7528Redis\u547d\u4ee4\u6e05\u7a7a\u6307\u5b9a\u6578\u64da<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u547d\u4ee4\u4f86\u64cd\u4f5c\u6578\u64da\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><code>DEL<\/code>\uff1a\u522a\u9664\u6307\u5b9a\u7684\u9375\u3002<\/li>\n<li><code>FLUSHDB<\/code>\uff1a\u6e05\u7a7a\u7576\u524d\u6578\u64da\u5eab\u7684\u6240\u6709\u6578\u64da\u3002<\/li>\n<li><code>FLUSHALL<\/code>\uff1a\u6e05\u7a7a\u6240\u6709\u6578\u64da\u5eab\u7684\u6240\u6709\u6578\u64da\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u6211\u5011\u53ea\u60f3\u522a\u9664\u7279\u5b9a\u7684\u9375\uff0c\u53ef\u4ee5\u4f7f\u7528<code>DEL<\/code>\u547d\u4ee4\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>DEL mykey<\/code><\/pre>\n<p>\u9019\u5c07\u522a\u9664\u540d\u70ba<code>mykey<\/code>\u7684\u9375\u53ca\u5176\u5c0d\u61c9\u7684\u503c\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e6%a8%a1%e5%bc%8f%e5%8c%b9%e9%85%8d%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a-BcgCdtdLvi\">\u4f7f\u7528\u6a21\u5f0f\u5339\u914d\u522a\u9664\u6578\u64da<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6211\u5011\u53ef\u80fd\u9700\u8981\u6839\u64da\u9375\u7684\u6a21\u5f0f\u4f86\u522a\u9664\u6578\u64da\u3002Redis\u7684<code>SCAN<\/code>\u547d\u4ee4\u53ef\u4ee5\u5e6b\u52a9\u6211\u5011\u904d\u6b77\u6578\u64da\u5eab\u4e2d\u7684\u9375\uff0c\u4e26\u6839\u64da\u6a21\u5f0f\u9032\u884c\u5339\u914d\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n# \u4f7f\u7528SCAN\u547d\u4ee4\u67e5\u627e\u6240\u6709\u4ee5\"user:\"\u958b\u982d\u7684\u9375\nSCAN 0 MATCH user:* COUNT 100\n<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u6240\u6709\u4ee5<code>user:<\/code>\u958b\u982d\u7684\u9375\u3002\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528<code>DEL<\/code>\u547d\u4ee4\u522a\u9664\u9019\u4e9b\u9375\uff1a<\/p>\n<pre><code>\n# \u5047\u8a2d\u6211\u5011\u5f97\u5230\u4e86\u5339\u914d\u7684\u9375\u5217\u8868\nkeys = [\"user:1\", \"user:2\", \"user:3\"]\nfor key in keys:\n    DEL key\n<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac%e9%80%b2%e8%a1%8c%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4-BcgCdtdLvi\">\u4f7f\u7528Lua\u8173\u672c\u9032\u884c\u6279\u91cf\u522a\u9664<\/h2>\n<p>\u5982\u679c\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6279\u91cf\u522a\u9664\u64cd\u4f5c\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528Lua\u8173\u672c\u3002Redis\u652f\u6301\u5728\u670d\u52d9\u5668\u7aef\u57f7\u884cLua\u8173\u672c\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u7db2\u7d61\u5ef6\u9072\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\u8173\u672c\uff0c\u7528\u65bc\u522a\u9664\u6240\u6709\u4ee5<code>session:<\/code>\u958b\u982d\u7684\u9375\uff1a<\/p>\n<pre><code>\nlocal keys = redis.call('KEYS', 'session:*')\nfor i=1,#keys,5000 do\n    redis.call('DEL', unpack(keys, i, math.min(i+4999, #keys)))\nend\n<\/code><\/pre>\n<p>\u9019\u6bb5\u8173\u672c\u5c07\u67e5\u627e\u6240\u6709\u4ee5<code>session:<\/code>\u958b\u982d\u7684\u9375\uff0c\u4e26\u5c07\u5176\u5206\u6279\u522a\u9664\uff0c\u4ee5\u907f\u514d\u4e00\u6b21\u6027\u522a\u9664\u904e\u591a\u9375\u5c0e\u81f4\u7684\u6027\u80fd\u554f\u984c\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-BcgCdtdLvi\">\u7e3d\u7d50<\/h2>\n<p>\u6e05\u7a7aRedis\u4e2d\u6307\u5b9a\u6578\u64da\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u5f9e\u57fa\u672c\u7684<code>DEL<\/code>\u547d\u4ee4\u5230\u4f7f\u7528\u6a21\u5f0f\u5339\u914d\u548cLua\u8173\u672c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u7ba1\u7406\u7684\u6548\u7387\uff0c\u9084\u80fd\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u904b\u884c\u60a8\u7684Redis\u5be6\u4f8b\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u4e00\u9375\u6e05\u7a7aRedis\u6307\u5b9a\u6578\u64da\u7684\u512a\u96c5\u65b9\u6cd5\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\uff0c\u63d0\u5347\u6548\u7387\uff0c\u8b93Redis\u64cd\u4f5c\u66f4\u8f15\u9b06\u4fbf\u6377\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-194059","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194059","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=194059"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194059\/revisions"}],"predecessor-version":[{"id":194060,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194059\/revisions\/194060"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=194059"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=194059"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=194059"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}