{"id":170049,"date":"2024-11-06T20:43:22","date_gmt":"2024-11-06T12:43:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/170049\/"},"modified":"2024-11-06T20:43:23","modified_gmt":"2024-11-06T12:43:23","slug":"%e5%85%a7%e5%ae%b9%e5%88%a9%e7%94%a8-redis-%e6%89%be%e5%87%ba%e6%89%80%e6%9c%89%e5%84%b2%e5%ad%98%e7%9a%84%e4%bf%a1%e6%81%af%ef%bc%88redis-%e6%9f%a5%e8%a9%a2%e6%89%80%e6%9c%89%e5%84%b2%e5%ad%98","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/170049\/","title":{"rendered":"\u5167\u5bb9\u5229\u7528 Redis \u627e\u51fa\u6240\u6709\u5132\u5b58\u7684\u4fe1\u606f\uff08redis \u67e5\u8a62\u6240\u6709\u5132\u5b58\uff09"},"content":{"rendered":"<h1 id=\"%e5%85%a7%e5%ae%b9%e5%88%a9%e7%94%a8-redis-%e6%89%be%e5%87%ba%e6%89%80%e6%9c%89%e5%84%b2%e5%ad%98%e7%9a%84%e4%bf%a1%e6%81%af%ef%bc%88redis-%e6%9f%a5%e8%a9%a2%e6%89%80%e6%9c%89%e5%84%b2%e5%ad%98-nIKfebjjfO\">\u5167\u5bb9\u5229\u7528 Redis \u627e\u51fa\u6240\u6709\u5132\u5b58\u7684\u4fe1\u606f\uff08redis \u67e5\u8a62\u6240\u6709\u5132\u5b58\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u5feb\u901f\u4e14\u9ad8\u6548\u7684\u6578\u64da\u5b58\u53d6\u5c0d\u65bc\u61c9\u7528\u7a0b\u5f0f\u7684\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u56e0\u5176\u5353\u8d8a\u7684\u6027\u80fd\u548c\u9748\u6d3b\u6027\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528 Redis \u67e5\u8a62\u6240\u6709\u5132\u5b58\u7684\u4fe1\u606f\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-redis%ef%bc%9f-nIKfebjjfO\">\u4ec0\u9ebc\u662f Redis\uff1f<\/h2>\n<p>Redis\uff08Remote Dictionary Server\uff09\u662f\u4e00\u500b\u958b\u6e90\u7684\u5167\u5b58\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u3002\u7531\u65bc\u5176\u9ad8\u6548\u7684\u6027\u80fd\uff0cRedis \u5e38\u88ab\u7528\u4f5c\u6578\u64da\u5eab\u3001\u7de9\u5b58\u548c\u6d88\u606f\u4ee3\u7406\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%93%8d%e4%bd%9c-nIKfebjjfO\">Redis \u7684\u57fa\u672c\u64cd\u4f5c<\/h2>\n<p>\u5728\u4f7f\u7528 Redis \u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3\u4e00\u4e9b\u57fa\u672c\u7684\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684 Redis \u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><code>SET key value<\/code>\uff1a\u8a2d\u7f6e\u6307\u5b9a\u9375\u7684\u503c\u3002<\/li>\n<li><code>GET key<\/code>\uff1a\u7372\u53d6\u6307\u5b9a\u9375\u7684\u503c\u3002<\/li>\n<li><code>DEL key<\/code>\uff1a\u522a\u9664\u6307\u5b9a\u9375\u3002<\/li>\n<li><code>EXISTS key<\/code>\uff1a\u6aa2\u67e5\u6307\u5b9a\u9375\u662f\u5426\u5b58\u5728\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e6%89%80%e6%9c%89%e5%84%b2%e5%ad%98%e7%9a%84%e4%bf%a1%e6%81%af-nIKfebjjfO\">\u67e5\u8a62\u6240\u6709\u5132\u5b58\u7684\u4fe1\u606f<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u67e5\u8a62\u6240\u6709\u5132\u5b58\u7684\u4fe1\u606f\u901a\u5e38\u6d89\u53ca\u5230\u4f7f\u7528 <code>KEYS<\/code> \u547d\u4ee4\u3002\u9019\u500b\u547d\u4ee4\u53ef\u4ee5\u7528\u4f86\u7372\u53d6\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684\u6240\u6709\u9375\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 <code>KEYS<\/code> \u547d\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>KEYS pattern<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u60f3\u67e5\u8a62\u6240\u6709\u7684\u9375\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>KEYS *<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de Redis \u4e2d\u6240\u6709\u7684\u9375\u3002\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\u6b64\u5728\u751f\u7522\u74b0\u5883\u4e2d\u61c9\u8b39\u614e\u4f7f\u7528\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8-scan-%e5%91%bd%e4%bb%a4-nIKfebjjfO\">\u4f7f\u7528 SCAN \u547d\u4ee4<\/h3>\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\uff0c\u9019\u662f\u4e00\u7a2e\u66f4\u5b89\u5168\u7684\u65b9\u5f0f\u4f86\u904d\u6b77\u9375\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>\u9019\u88e1\u7684 <code>cursor<\/code> \u662f\u4e00\u500b\u6e38\u6a19\uff0c\u7528\u65bc\u8ddf\u8e2a\u7576\u524d\u7684\u4f4d\u7f6e\u3002\u6bcf\u6b21\u8abf\u7528 <code>SCAN<\/code> \u547d\u4ee4\u6642\uff0cRedis \u6703\u8fd4\u56de\u4e00\u500b\u65b0\u7684\u6e38\u6a19\uff0c\u76f4\u5230\u6e38\u6a19\u70ba 0 \u6642\u8868\u793a\u904d\u6b77\u7d50\u675f\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 <code>SCAN<\/code> \u547d\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SCAN 0 MATCH * COUNT 10<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u5c07\u8fd4\u56de\u6700\u591a 10 \u500b\u9375\uff0c\u4e26\u4e14\u4e0d\u6703\u5f71\u97ff Redis \u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e6%9f%a5%e8%a9%a2%e6%89%80%e6%9c%89%e7%94%a8%e6%88%b6%e4%bf%a1%e6%81%af-nIKfebjjfO\">\u793a\u4f8b\uff1a\u67e5\u8a62\u6240\u6709\u7528\u6236\u4fe1\u606f<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u5728 Redis \u4e2d\u5132\u5b58\u4e86\u7528\u6236\u4fe1\u606f\uff0c\u6bcf\u500b\u7528\u6236\u7684\u9375\u70ba <code>user:{id}<\/code>\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 <code>SCAN<\/code> \u547d\u4ee4\u4f86\u67e5\u8a62\u6240\u6709\u7528\u6236\u4fe1\u606f\uff1a<\/p>\n<pre><code>\nlet cursor = '0';\ndo {\n    const result = await redis.scan(cursor, 'MATCH', 'user:*', 'COUNT', '10');\n    cursor = result[0]; \/\/ \u66f4\u65b0\u6e38\u6a19\n    const keys = result[1]; \/\/ \u7372\u53d6\u9375\n    \/\/ \u8655\u7406\u9375\n} while (cursor !== '0');\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u904d\u6b77\u6240\u6709\u4ee5 <code>user:<\/code> \u958b\u982d\u7684\u9375\uff0c\u4e26\u8655\u7406\u6bcf\u500b\u9375\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-nIKfebjjfO\">\u7e3d\u7d50<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u67e5\u8a62\u5132\u5b58\u7684\u4fe1\u606f\uff0c\u7121\u8ad6\u662f\u4f7f\u7528 <code>KEYS<\/code> \u547d\u4ee4\u9084\u662f\u66f4\u5b89\u5168\u7684 <code>SCAN<\/code> \u547d\u4ee4\uff0c\u958b\u767c\u8005\u90fd\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\u3002\u4e86\u89e3\u5982\u4f55\u6709\u6548\u5730\u67e5\u8a62 Redis \u4e2d\u7684\u6578\u64da\u4e0d\u50c5\u80fd\u63d0\u9ad8\u61c9\u7528\u7a0b\u5f0f\u7684\u6027\u80fd\uff0c\u9084\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\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\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528 Redis \u67e5\u8a62\u6240\u6709\u5132\u5b58\u7684\u4fe1\u606f\uff0c\u5feb\u901f\u7372\u53d6\u6578\u64da\uff0c\u63d0\u5347\u61c9\u7528\u6027\u80fd\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\u6d41\u7a0b\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-170049","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170049","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=170049"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170049\/revisions"}],"predecessor-version":[{"id":170050,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170049\/revisions\/170050"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=170049"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=170049"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=170049"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}