{"id":128707,"date":"2024-10-26T16:09:21","date_gmt":"2024-10-26T08:09:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/128707\/"},"modified":"2024-10-26T16:09:22","modified_gmt":"2024-10-26T08:09:22","slug":"redis%e5%af%a6%e7%8f%be%e5%8f%af%e9%9d%a0%e7%9a%84%e9%bb%9e%e8%ae%9a%e5%8a%9f%e8%83%bd%ef%bc%88redis%e9%bb%9e%e8%ae%9a%e8%a8%ad%e7%bd%ae%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/128707\/","title":{"rendered":"Redis\u5be6\u73fe\u53ef\u9760\u7684\u9ede\u8b9a\u529f\u80fd\uff08redis\u9ede\u8b9a\u8a2d\u7f6e\uff09"},"content":{"rendered":"<h1 id=\"redis%e5%af%a6%e7%8f%be%e5%8f%af%e9%9d%a0%e7%9a%84%e9%bb%9e%e8%ae%9a%e5%8a%9f%e8%83%bd%ef%bc%88redis%e9%bb%9e%e8%ae%9a%e8%a8%ad%e7%bd%ae%ef%bc%89-GZHVuXsoHd\">Redis\u5be6\u73fe\u53ef\u9760\u7684\u9ede\u8b9a\u529f\u80fd\uff08redis\u9ede\u8b9a\u8a2d\u7f6e\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u9ede\u8b9a\u529f\u80fd\u5df2\u6210\u70ba\u7528\u6236\u4e92\u52d5\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\u3002\u7121\u8ad6\u662f\u793e\u4ea4\u5a92\u9ad4\u5e73\u53f0\u9084\u662f\u96fb\u5b50\u5546\u52d9\u7db2\u7ad9\uff0c\u9ede\u8b9a\u529f\u80fd\u90fd\u80fd\u6709\u6548\u63d0\u5347\u7528\u6236\u53c3\u8207\u5ea6\u548c\u5167\u5bb9\u7684\u53ef\u898b\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Redis\u4f86\u5be6\u73fe\u4e00\u500b\u53ef\u9760\u7684\u9ede\u8b9a\u529f\u80fd\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u8a2d\u7f6e\u548c\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87redis%ef%bc%9f-GZHVuXsoHd\">\u70ba\u4ec0\u9ebc\u9078\u64c7Redis\uff1f<\/h2>\n<p>Redis\u662f\u4e00\u7a2e\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u56e0\u5176\u5feb\u901f\u7684\u8b80\u5beb\u901f\u5ea6\u548c\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Redis\u5be6\u73fe\u9ede\u8b9a\u529f\u80fd\u7684\u4e00\u4e9b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u80fd\uff1a<\/strong>Redis\u7684\u5167\u5b58\u5b58\u5132\u7279\u6027\u4f7f\u5176\u80fd\u5920\u5feb\u901f\u8655\u7406\u5927\u91cf\u7684\u9ede\u8b9a\u8acb\u6c42\u3002<\/li>\n<li><strong>\u539f\u5b50\u64cd\u4f5c\uff1a<\/strong>Redis\u652f\u6301\u539f\u5b50\u64cd\u4f5c\uff0c\u9019\u5c0d\u65bc\u9ede\u8b9a\u529f\u80fd\u81f3\u95dc\u91cd\u8981\uff0c\u56e0\u70ba\u5b83\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<li><strong>\u6578\u64da\u7d50\u69cb\uff1a<\/strong>Redis\u63d0\u4f9b\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\uff0c\u9019\u4f7f\u5f97\u5be6\u73fe\u9ede\u8b9a\u529f\u80fd\u8b8a\u5f97\u66f4\u52a0\u9748\u6d3b\u3002<\/li>\n<\/ul>\n<h2 id=\"redis%e9%bb%9e%e8%ae%9a%e5%8a%9f%e8%83%bd%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%a8%ad%e7%bd%ae-GZHVuXsoHd\">Redis\u9ede\u8b9a\u529f\u80fd\u7684\u57fa\u672c\u8a2d\u7f6e<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u78ba\u4fdd\u4f60\u5df2\u7d93\u5b89\u88dd\u4e86Redis\u4e26\u4e14\u53ef\u4ee5\u6b63\u5e38\u904b\u884c\u3002\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u5c07\u901a\u904e\u4ee5\u4e0b\u6b65\u9a5f\u4f86\u8a2d\u7f6e\u9ede\u8b9a\u529f\u80fd\uff1a<\/p>\n<h3 id=\"1-%e8%a8%ad%e8%a8%88%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b-GZHVuXsoHd\">1. \u8a2d\u8a08\u6578\u64da\u7d50\u69cb<\/h3>\n<p>\u6211\u5011\u53ef\u4ee5\u4f7f\u7528Redis\u7684\u96c6\u5408\u4f86\u5b58\u5132\u6bcf\u500b\u7528\u6236\u7684\u9ede\u8b9a\u8a18\u9304\u3002\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u5e16\u5b50ID\uff0c\u5247\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u7d50\u69cb\uff1a<\/p>\n<pre><code>SET post:123:likes:user:1\nSET post:123:likes:user:2\nSET post:123:likes:user:3<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c`post:123:likes`\u662f\u5e16\u5b50\u7684\u9ede\u8b9a\u96c6\u5408\uff0c`user:1`\u3001`user:2`\u548c`user:3`\u662f\u9ede\u8b9a\u7684\u7528\u6236ID\u3002<\/p>\n<h3 id=\"2-%e9%bb%9e%e8%ae%9a%e6%93%8d%e4%bd%9c-GZHVuXsoHd\">2. \u9ede\u8b9a\u64cd\u4f5c<\/h3>\n<p>\u7576\u7528\u6236\u9ede\u64ca\u9ede\u8b9a\u6309\u9215\u6642\uff0c\u6211\u5011\u9700\u8981\u5c07\u7528\u6236ID\u6dfb\u52a0\u5230\u76f8\u61c9\u5e16\u5b50\u7684\u9ede\u8b9a\u96c6\u5408\u4e2d\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bRedis\u547d\u4ee4\uff1a<\/p>\n<pre><code>SADD post:123:likes user:1<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u7528\u6236ID `user:1` \u6dfb\u52a0\u5230\u5e16\u5b50ID\u70ba `123` \u7684\u9ede\u8b9a\u96c6\u5408\u4e2d\u3002<\/p>\n<h3 id=\"3-%e5%8f%96%e6%b6%88%e9%bb%9e%e8%ae%9a%e6%93%8d%e4%bd%9c-GZHVuXsoHd\">3. \u53d6\u6d88\u9ede\u8b9a\u64cd\u4f5c<\/h3>\n<p>\u5982\u679c\u7528\u6236\u60f3\u8981\u53d6\u6d88\u9ede\u8b9a\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>SREM post:123:likes user:1<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u7528\u6236ID `user:1` \u5f9e\u5e16\u5b50ID\u70ba `123` \u7684\u9ede\u8b9a\u96c6\u5408\u4e2d\u79fb\u9664\u3002<\/p>\n<h3 id=\"4-%e7%8d%b2%e5%8f%96%e9%bb%9e%e8%ae%9a%e6%95%b8%e9%87%8f-GZHVuXsoHd\">4. \u7372\u53d6\u9ede\u8b9a\u6578\u91cf<\/h3>\n<p>\u8981\u7372\u53d6\u67d0\u500b\u5e16\u5b50\u7684\u9ede\u8b9a\u6578\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>SCARD post:123:likes<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u8fd4\u56de\u5e16\u5b50ID\u70ba `123` \u7684\u9ede\u8b9a\u6578\u91cf\u3002<\/p>\n<h2 id=\"%e5%af%a6%e7%8f%be%e7%a4%ba%e4%be%8b-GZHVuXsoHd\">\u5be6\u73fe\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Python\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528Redis\u4f86\u5be6\u73fe\u9ede\u8b9a\u529f\u80fd\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u9ede\u8b9a\ndef like_post(post_id, user_id):\n    r.sadd(f'post:{post_id}:likes', user_id)\n\n# \u53d6\u6d88\u9ede\u8b9a\ndef unlike_post(post_id, user_id):\n    r.srem(f'post:{post_id}:likes', user_id)\n\n# \u7372\u53d6\u9ede\u8b9a\u6578\u91cf\ndef get_like_count(post_id):\n    return r.scard(f'post:{post_id}:likes')\n\n# \u4f7f\u7528\u793a\u4f8b\nlike_post(123, 'user:1')\nlike_post(123, 'user:2')\nprint(get_like_count(123))  # \u8f38\u51fa: 2\nunlike_post(123, 'user:1')\nprint(get_like_count(123))  # \u8f38\u51fa: 1<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GZHVuXsoHd\">\u7e3d\u7d50<\/h2>\n<p>\u5229\u7528Redis\u5be6\u73fe\u9ede\u8b9a\u529f\u80fd\u4e0d\u50c5\u9ad8\u6548\u4e14\u53ef\u9760\uff0c\u80fd\u5920\u6eff\u8db3\u73fe\u4ee3\u61c9\u7528\u5c0d\u65bc\u7528\u6236\u4e92\u52d5\u7684\u9700\u6c42\u3002\u901a\u904e\u7c21\u55ae\u7684\u6578\u64da\u7d50\u69cb\u8a2d\u8a08\u548cRedis\u7684\u539f\u5b50\u64cd\u4f5c\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u7ba1\u7406\u9ede\u8b9a\u7684\u589e\u6e1b\u53ca\u5176\u7d71\u8a08\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u6280\u8853\u652f\u6301\u6216\u5c0b\u627e\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528Redis\u5be6\u73fe\u53ef\u9760\u7684\u9ede\u8b9a\u529f\u80fd\uff0c\u7c21\u5316\u9ede\u8b9a\u8a2d\u7f6e\uff0c\u63d0\u5347\u7528\u6236\u4e92\u52d5\u9ad4\u9a57\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-128707","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128707","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=128707"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128707\/revisions"}],"predecessor-version":[{"id":128708,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128707\/revisions\/128708"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=128707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=128707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=128707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}