{"id":152577,"date":"2024-11-02T00:16:22","date_gmt":"2024-11-01T16:16:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/152577\/"},"modified":"2024-11-02T00:16:24","modified_gmt":"2024-11-01T16:16:24","slug":"%e6%9f%a5%e7%9c%8b-redis-%e4%b8%ad%e8%a1%a8%e7%9a%84%e8%a1%8c%e6%95%b8%e5%a4%a7%e5%b0%8f%ef%bc%88redis-%e8%a1%a8%e7%b8%bd%e8%a1%8c%e6%95%b8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/152577\/","title":{"rendered":"\u67e5\u770b Redis \u4e2d\u8868\u7684\u884c\u6578\u5927\u5c0f\uff08Redis \u8868\u7e3d\u884c\u6578\uff09"},"content":{"rendered":"<h1 id=\"%e6%9f%a5%e7%9c%8b-redis-%e4%b8%ad%e8%a1%a8%e7%9a%84%e8%a1%8c%e6%95%b8%e5%a4%a7%e5%b0%8f%ef%bc%88redis-%e8%a1%a8%e7%b8%bd%e8%a1%8c%e6%95%b8%ef%bc%89-zXkjhVBHdp\">\u67e5\u770b Redis \u4e2d\u8868\u7684\u884c\u6578\u5927\u5c0f\uff08Redis \u8868\u7e3d\u884c\u6578\uff09<\/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\u7531\u65bc\u5176\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\uff0c\u8a31\u591a\u958b\u767c\u8005\u9078\u64c7\u4f7f\u7528 Redis \u4f86\u7ba1\u7406\u6578\u64da\u3002\u5728\u4f7f\u7528 Redis \u6642\uff0c\u4e86\u89e3\u5982\u4f55\u67e5\u770b\u8868\u7684\u884c\u6578\u5927\u5c0f\uff08\u5373\u9375\u7684\u6578\u91cf\uff09\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u9019\u6709\u52a9\u65bc\u6211\u5011\u66f4\u597d\u5730\u7ba1\u7406\u548c\u512a\u5316\u6578\u64da\u5b58\u5132\u3002<\/p>\n<h2 id=\"redis-%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b-zXkjhVBHdp\">Redis \u4e2d\u7684\u6578\u64da\u7d50\u69cb<\/h2>\n<p>\u5728\u6df1\u5165\u4e86\u89e3\u5982\u4f55\u67e5\u770b Redis \u4e2d\u8868\u7684\u884c\u6578\u4e4b\u524d\uff0c\u6211\u5011\u9700\u8981\u5148\u4e86\u89e3 Redis \u7684\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<\/strong>\uff1a\u6700\u57fa\u672c\u7684\u6578\u64da\u985e\u578b\uff0c\u53ef\u4ee5\u5b58\u5132\u4efb\u4f55\u985e\u578b\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u54c8\u5e0c\uff08Hash\uff09<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u5c0d\u8c61\uff0c\u985e\u4f3c\u65bc Python \u7684\u5b57\u5178\u3002<\/li>\n<li><strong>\u5217\u8868\uff08List\uff09<\/strong>\uff1a\u6709\u5e8f\u7684\u5b57\u7b26\u4e32\u96c6\u5408\uff0c\u53ef\u4ee5\u7528\u65bc\u5be6\u73fe\u968a\u5217\u548c\u68e7\u3002<\/li>\n<li><strong>\u96c6\u5408\uff08Set\uff09<\/strong>\uff1a\u7121\u5e8f\u7684\u5b57\u7b26\u4e32\u96c6\u5408\uff0c\u652f\u6301\u96c6\u5408\u904b\u7b97\u3002<\/li>\n<li><strong>\u6709\u5e8f\u96c6\u5408\uff08Sorted Set\uff09<\/strong>\uff1a\u6bcf\u500b\u5143\u7d20\u90fd\u6709\u4e00\u500b\u5206\u6578\uff0c\u6839\u64da\u5206\u6578\u9032\u884c\u6392\u5e8f\u3002<\/li>\n<\/ul>\n<p>\u5728\u9019\u4e9b\u6578\u64da\u7d50\u69cb\u4e2d\uff0c\u54c8\u5e0c\u985e\u578b\u7279\u5225\u9069\u5408\u7528\u4f86\u5b58\u5132\u8868\u683c\u6578\u64da\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u5c07\u591a\u500b\u9375\u503c\u5c0d\u7d44\u7e54\u5728\u4e00\u8d77\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%9f%a5%e7%9c%8b-redis-%e4%b8%ad%e8%a1%a8%e7%9a%84%e8%a1%8c%e6%95%b8-zXkjhVBHdp\">\u5982\u4f55\u67e5\u770b Redis \u4e2d\u8868\u7684\u884c\u6578<\/h2>\n<p>\u8981\u67e5\u770b Redis \u4e2d\u67d0\u500b\u54c8\u5e0c\u8868\u7684\u884c\u6578\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 Redis \u63d0\u4f9b\u7684\u547d\u4ee4\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u547d\u4ee4\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-hlen-%e5%91%bd%e4%bb%a4-zXkjhVBHdp\">1. \u4f7f\u7528 HLEN \u547d\u4ee4<\/h3>\n<p>HLEN \u547d\u4ee4\u7528\u65bc\u7372\u53d6\u54c8\u5e0c\u8868\u4e2d\u9375\u503c\u5c0d\u7684\u6578\u91cf\u3002\u5176\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>HLEN key<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>key<\/code> \u662f\u54c8\u5e0c\u8868\u7684\u540d\u7a31\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>user:1000<\/code> \u7684\u54c8\u5e0c\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u5176\u884c\u6578\uff1a<\/p>\n<pre><code>HLEN user:1000<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u8a72\u54c8\u5e0c\u8868\u4e2d\u9375\u503c\u5c0d\u7684\u6578\u91cf\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-scan-%e5%91%bd%e4%bb%a4-zXkjhVBHdp\">2. \u4f7f\u7528 SCAN \u547d\u4ee4<\/h3>\n<p>\u5982\u679c\u60a8\u60f3\u8981\u904d\u6b77\u6574\u500b Redis \u6578\u64da\u5eab\u4e26\u8a08\u7b97\u6240\u6709\u9375\u7684\u6578\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528 SCAN \u547d\u4ee4\u3002\u9019\u662f\u4e00\u500b\u589e\u91cf\u8fed\u4ee3\u5668\uff0c\u53ef\u4ee5\u907f\u514d\u4e00\u6b21\u6027\u52a0\u8f09\u6240\u6709\u9375\uff0c\u5f9e\u800c\u6e1b\u5c11\u5167\u5b58\u4f7f\u7528\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SCAN cursor<\/code><\/pre>\n<p>\u5728\u4f7f\u7528 SCAN \u547d\u4ee4\u6642\uff0c\u60a8\u9700\u8981\u63d0\u4f9b\u4e00\u500b\u6e38\u6a19\uff08cursor\uff09\uff0c\u521d\u59cb\u503c\u70ba 0\u3002\u6bcf\u6b21\u8abf\u7528 SCAN \u547d\u4ee4\u6642\uff0cRedis \u6703\u8fd4\u56de\u4e00\u500b\u65b0\u7684\u6e38\u6a19\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u9019\u500b\u6e38\u6a19\u9032\u884c\u4e0b\u4e00\u6b21\u8fed\u4ee3\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nlocal cursor = \"0\"\nlocal count = 0\nrepeat\n    local result = redis.call(\"SCAN\", cursor)\n    cursor = result[1]\n    count = count + #result[2]\nuntil cursor == \"0\"\nreturn count\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u904d\u6b77\u6574\u500b Redis \u6578\u64da\u5eab\u4e26\u8a08\u7b97\u6240\u6709\u9375\u7684\u6578\u91cf\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-zXkjhVBHdp\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Redis \u4e2d\u67e5\u770b\u8868\u7684\u884c\u6578\u5927\u5c0f\u662f\u7ba1\u7406\u6578\u64da\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u901a\u904e\u4f7f\u7528 HLEN \u548c SCAN \u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u7372\u53d6\u54c8\u5e0c\u8868\u7684\u9375\u503c\u5c0d\u6578\u91cf\u6216\u6574\u500b\u6578\u64da\u5eab\u7684\u9375\u6578\u91cf\u3002\u9019\u4e9b\u64cd\u4f5c\u4e0d\u50c5\u6709\u52a9\u65bc\u6578\u64da\u7684\u7ba1\u7406\uff0c\u9084\u80fd\u5e6b\u52a9\u6211\u5011\u512a\u5316\u6027\u80fd\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\u7684 Redis \u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\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\">\u4e91\u670d\u52a1\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u67e5\u770b Redis \u4e2d\u8868\u7684\u884c\u6570\u5927\u5c0f\uff0c\u83b7\u53d6 Redis \u8868\u7684\u603b\u884c\u6570\uff0c\u4f18\u5316\u6570\u636e\u7ba1\u7406\u4e0e\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-152577","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152577","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=152577"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152577\/revisions"}],"predecessor-version":[{"id":152578,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152577\/revisions\/152578"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=152577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=152577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=152577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}