{"id":129249,"date":"2024-10-26T20:12:20","date_gmt":"2024-10-26T12:12:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129249\/"},"modified":"2024-10-26T20:12:20","modified_gmt":"2024-10-26T12:12:20","slug":"redis%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e5%b8%b6%e8%a1%8c%e8%99%9f%e7%9a%84%e6%9c%89%e6%95%88%e6%96%b9%e5%bc%8f%ef%bc%88redis%e6%9f%a5%e8%a9%a2%e5%b8%b6%e8%a1%8c%e8%99%9f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129249\/","title":{"rendered":"Redis\u6578\u64da\u5eab\u67e5\u8a62\u5e36\u884c\u865f\u7684\u6709\u6548\u65b9\u5f0f\uff08redis\u67e5\u8a62\u5e36\u884c\u865f\uff09"},"content":{"rendered":"<h1 id=\"redis%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e5%b8%b6%e8%a1%8c%e8%99%9f%e7%9a%84%e6%9c%89%e6%95%88%e6%96%b9%e5%bc%8f%ef%bc%88redis%e6%9f%a5%e8%a9%a2%e5%b8%b6%e8%a1%8c%e8%99%9f%ef%bc%89-tyYLKzbZvY\">Redis\u6578\u64da\u5eab\u67e5\u8a62\u5e36\u884c\u865f\u7684\u6709\u6548\u65b9\u5f0f\uff08redis\u67e5\u8a62\u5e36\u884c\u865f\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u3002\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u5982\u4f55\u6709\u6548\u5730\u67e5\u8a62Redis\u6578\u64da\u5eab\u4e26\u7372\u53d6\u5e36\u884c\u865f\u7684\u7d50\u679c\u662f\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5728Redis\u4e2d\u67e5\u8a62\u5e36\u884c\u865f\u7684\u6709\u6548\u65b9\u6cd5\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-tyYLKzbZvY\">Redis\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis\u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\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\u548c\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\uff0cRedis\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u9700\u8981\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u7684\u5834\u666f\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e5%b8%b6%e8%a1%8c%e8%99%9f%e7%9a%84%e9%9c%80%e6%b1%82-tyYLKzbZvY\">\u67e5\u8a62\u5e36\u884c\u865f\u7684\u9700\u6c42<\/h2>\n<p>\u5728\u67d0\u4e9b\u61c9\u7528\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u5728\u67e5\u8a62\u7d50\u679c\u4e2d\u5305\u542b\u884c\u865f\uff0c\u4ee5\u4fbf\u65bc\u6578\u64da\u7684\u986f\u793a\u548c\u7ba1\u7406\u3002\u4f8b\u5982\uff0c\u5728\u986f\u793a\u7528\u6236\u5217\u8868\u6216\u65e5\u8a8c\u4fe1\u606f\u6642\uff0c\u884c\u865f\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u5feb\u901f\u5b9a\u4f4d\u7279\u5b9a\u7684\u6578\u64da\u884c\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e7%9a%84scan%e5%91%bd%e4%bb%a4-tyYLKzbZvY\">\u4f7f\u7528Redis\u7684SCAN\u547d\u4ee4<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u547d\u4ee4\u4f86\u67e5\u8a62\u6578\u64da\uff0c\u5176\u4e2dSCAN\u547d\u4ee4\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\u3002SCAN\u547d\u4ee4\u53ef\u4ee5\u7528\u4f86\u904d\u6b77\u6578\u64da\u5eab\u4e2d\u7684\u9375\uff0c\u4e26\u4e14\u4e0d\u6703\u963b\u585e\u670d\u52d9\u5668\u3002\u9019\u5c0d\u65bc\u5927\u6578\u64da\u96c6\u7684\u67e5\u8a62\u7279\u5225\u6709\u7528\u3002<\/p>\n<pre><code>SCAN cursor [MATCH pattern] [COUNT count]<\/code><\/pre>\n<p>\u5176\u4e2d\uff0ccursor\u662f\u6e38\u6a19\uff0cMATCH\u7528\u65bc\u5339\u914d\u7279\u5b9a\u7684\u9375\uff0cCOUNT\u5247\u6307\u5b9a\u6bcf\u6b21\u8fd4\u56de\u7684\u9375\u7684\u6578\u91cf\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4%e6%9f%a5%e8%a9%a2%e5%b8%b6%e8%a1%8c%e8%99%9f%e7%9a%84%e6%95%b8%e6%93%9a-tyYLKzbZvY\">\u793a\u4f8b\uff1a\u4f7f\u7528SCAN\u547d\u4ee4\u67e5\u8a62\u5e36\u884c\u865f\u7684\u6578\u64da<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528SCAN\u547d\u4ee4\u67e5\u8a62Redis\u6578\u64da\u5eab\u4e2d\u6240\u6709\u7528\u6236\u7684\u793a\u4f8b\uff0c\u4e26\u70ba\u6bcf\u500b\u7528\u6236\u6dfb\u52a0\u884c\u865f\uff1a<\/p>\n<pre><code>let cursor = '0';\nlet lineNumber = 1;\n\ndo {\n    const result = await redis.scan(cursor, 'MATCH', 'user:*', 'COUNT', '10');\n    cursor = result[0];\n    const keys = result[1];\n\n    keys.forEach(key =&gt; {\n        const value = await redis.get(key);\n        console.log(`${lineNumber}: ${key} - ${value}`);\n        lineNumber++;\n    });\n} while (cursor !== '0');<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86SCAN\u547d\u4ee4\u4f86\u904d\u6b77\u6240\u6709\u4ee5&#8221;user:&#8221;\u958b\u982d\u7684\u9375\uff0c\u4e26\u70ba\u6bcf\u500b\u9375\u6dfb\u52a0\u4e86\u884c\u865f\u3002\u9019\u6a23\u7684\u67e5\u8a62\u65b9\u5f0f\u4e0d\u50c5\u9ad8\u6548\uff0c\u9084\u80fd\u907f\u514d\u56e0\u70ba\u4e00\u6b21\u6027\u52a0\u8f09\u5927\u91cf\u6578\u64da\u800c\u5c0e\u81f4\u7684\u6027\u80fd\u554f\u984c\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e7%9a%84zscan%e5%91%bd%e4%bb%a4-tyYLKzbZvY\">\u4f7f\u7528Redis\u7684ZSCAN\u547d\u4ee4<\/h2>\n<p>\u5982\u679c\u6578\u64da\u5b58\u5132\u5728\u6709\u5e8f\u96c6\u5408\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528ZSCAN\u547d\u4ee4\u4f86\u67e5\u8a62\u5e36\u884c\u865f\u7684\u6578\u64da\u3002ZSCAN\u547d\u4ee4\u7684\u8a9e\u6cd5\u8207SCAN\u985e\u4f3c\uff0c\u4f46\u5b83\u5c08\u9580\u7528\u65bc\u6709\u5e8f\u96c6\u5408\u3002<\/p>\n<pre><code>ZSCAN key cursor [MATCH pattern] [COUNT count]<\/code><\/pre>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e4%bd%bf%e7%94%a8zscan%e5%91%bd%e4%bb%a4%e6%9f%a5%e8%a9%a2%e5%b8%b6%e8%a1%8c%e8%99%9f%e7%9a%84%e6%95%b8%e6%93%9a-tyYLKzbZvY\">\u793a\u4f8b\uff1a\u4f7f\u7528ZSCAN\u547d\u4ee4\u67e5\u8a62\u5e36\u884c\u865f\u7684\u6578\u64da<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528ZSCAN\u547d\u4ee4\u67e5\u8a62\u6709\u5e8f\u96c6\u5408\u4e2d\u6240\u6709\u7528\u6236\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>let cursor = '0';\nlet lineNumber = 1;\n\ndo {\n    const result = await redis.zscan('user_scores', cursor, 'COUNT', '10');\n    cursor = result[0];\n    const items = result[1];\n\n    items.forEach((item, index) =&gt; {\n        console.log(`${lineNumber}: ${item[0]} - ${item[1]}`);\n        lineNumber++;\n    });\n} while (cursor !== '0');<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u67e5\u8a62\u4e86\u540d\u70ba&#8221;user_scores&#8221;\u7684\u6709\u5e8f\u96c6\u5408\uff0c\u4e26\u70ba\u6bcf\u500b\u7528\u6236\u7684\u5206\u6578\u6dfb\u52a0\u4e86\u884c\u865f\u3002\u9019\u6a23\u7684\u67e5\u8a62\u65b9\u5f0f\u540c\u6a23\u9ad8\u6548\uff0c\u9069\u5408\u7528\u65bc\u9700\u8981\u6392\u5e8f\u7684\u6578\u64da\u5834\u666f\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-tyYLKzbZvY\">\u7e3d\u7d50<\/h2>\n<p>\u5728Redis\u4e2d\u67e5\u8a62\u5e36\u884c\u865f\u7684\u6578\u64da\u53ef\u4ee5\u901a\u904e\u4f7f\u7528SCAN\u548cZSCAN\u547d\u4ee4\u4f86\u5be6\u73fe\u3002\u9019\u4e9b\u547d\u4ee4\u4e0d\u50c5\u80fd\u5920\u9ad8\u6548\u5730\u904d\u6b77\u6578\u64da\uff0c\u9084\u80fd\u907f\u514d\u56e0\u70ba\u4e00\u6b21\u6027\u52a0\u8f09\u5927\u91cf\u6578\u64da\u800c\u5c0e\u81f4\u7684\u6027\u80fd\u554f\u984c\u3002\u7121\u8ad6\u662f\u5728\u7528\u6236\u7ba1\u7406\u9084\u662f\u6578\u64da\u5206\u6790\u4e2d\uff0c\u9019\u4e9b\u6280\u8853\u90fd\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u8655\u7406\u6578\u64da\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684Redis\u6578\u64da\u5eab\uff0c\u4eab\u53d7\u66f4\u5feb\u7684\u6578\u64da\u8655\u7406\u901f\u5ea6\u548c\u66f4\u9ad8\u7684\u53ef\u7528\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u6578\u64da\u5eab\u67e5\u8a62\u5e36\u884c\u865f\u7684\u6709\u6548\u65b9\u6cd5\uff0c\u63d0\u5347\u6578\u64da\u6aa2\u7d22\u6548\u7387\uff0c\u7c21\u5316\u958b\u767c\u6d41\u7a0b\uff0c\u512a\u5316\u6027\u80fd\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-129249","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129249","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=129249"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129249\/revisions"}],"predecessor-version":[{"id":129250,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129249\/revisions\/129250"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129249"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}