{"id":161683,"date":"2024-11-04T08:28:20","date_gmt":"2024-11-04T00:28:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/161683\/"},"modified":"2024-11-04T08:28:21","modified_gmt":"2024-11-04T00:28:21","slug":"%e5%9f%ba%e6%96%bc-redis-%e5%af%a6%e7%8f%be%e9%ab%98%e6%80%a7%e8%83%bd%e7%a7%92%e6%ae%ba%e7%b3%bb%e7%b5%b1%ef%bc%88%e5%9f%ba%e6%96%bc-redis-%e5%af%a6%e7%8f%be%e7%a7%92%e6%ae%ba%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/161683\/","title":{"rendered":"\u57fa\u65bc Redis \u5be6\u73fe\u9ad8\u6027\u80fd\u79d2\u6bba\u7cfb\u7d71\uff08\u57fa\u65bc redis \u5be6\u73fe\u79d2\u6bba\uff09"},"content":{"rendered":"<h1 id=\"%e5%9f%ba%e6%96%bc-redis-%e5%af%a6%e7%8f%be%e9%ab%98%e6%80%a7%e8%83%bd%e7%a7%92%e6%ae%ba%e7%b3%bb%e7%b5%b1-krpzRdLOSe\">\u57fa\u65bc Redis \u5be6\u73fe\u9ad8\u6027\u80fd\u79d2\u6bba\u7cfb\u7d71<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u96fb\u5b50\u5546\u52d9\u74b0\u5883\u4e2d\uff0c\u79d2\u6bba\u6d3b\u52d5\u5df2\u6210\u70ba\u5438\u5f15\u9867\u5ba2\u548c\u4fc3\u9032\u92b7\u552e\u7684\u91cd\u8981\u624b\u6bb5\u3002\u7136\u800c\uff0c\u96a8\u8457\u53c3\u8207\u8005\u7684\u589e\u52a0\uff0c\u5982\u4f55\u9ad8\u6548\u5730\u8655\u7406\u5927\u91cf\u8acb\u6c42\u6210\u70ba\u4e86\u4e00\u500b\u6311\u6230\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u56e0\u5176\u5feb\u901f\u7684\u8b80\u5beb\u901f\u5ea6\u548c\u512a\u79c0\u7684\u6578\u64da\u7d50\u69cb\uff0c\u6210\u70ba\u5be6\u73fe\u9ad8\u6027\u80fd\u79d2\u6bba\u7cfb\u7d71\u7684\u7406\u60f3\u9078\u64c7\u3002<\/p>\n<h2 id=\"%e7%a7%92%e6%ae%ba%e7%b3%bb%e7%b5%b1%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%8e%9f%e7%90%86-krpzRdLOSe\">\u79d2\u6bba\u7cfb\u7d71\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u79d2\u6bba\u7cfb\u7d71\u7684\u6838\u5fc3\u5728\u65bc\u5728\u77ed\u6642\u9593\u5167\u8655\u7406\u5927\u91cf\u7684\u8cfc\u8cb7\u8acb\u6c42\u3002\u901a\u5e38\uff0c\u79d2\u6bba\u6d3b\u52d5\u6703\u8a2d\u7f6e\u4e00\u500b\u9650\u91cf\u7684\u5546\u54c1\u6578\u91cf\uff0c\u4e26\u5728\u7279\u5b9a\u6642\u9593\u5167\u958b\u653e\u8cfc\u8cb7\u3002\u7528\u6236\u5728\u6d3b\u52d5\u958b\u59cb\u7684\u77ac\u9593\u767c\u9001\u8acb\u6c42\uff0c\u7cfb\u7d71\u9700\u8981\u5feb\u901f\u5224\u65b7\u8acb\u6c42\u7684\u6709\u6548\u6027\u4e26\u66f4\u65b0\u5eab\u5b58\u3002\u9019\u5c31\u8981\u6c42\u7cfb\u7d71\u5177\u5099\u9ad8\u4e26\u767c\u8655\u7406\u80fd\u529b\u548c\u4f4e\u5ef6\u9072\u7684\u97ff\u61c9\u6642\u9593\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87-redis%ef%bc%9f-krpzRdLOSe\">\u70ba\u4ec0\u9ebc\u9078\u64c7 Redis\uff1f<\/h2>\n<p>Redis \u662f\u4e00\u500b\u958b\u6e90\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5177\u6709\u4ee5\u4e0b\u5e7e\u500b\u7279\u9ede\uff0c\u4f7f\u5176\u6210\u70ba\u79d2\u6bba\u7cfb\u7d71\u7684\u7406\u60f3\u9078\u64c7\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis \u7684\u8b80\u5beb\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u80fd\u5920\u6bcf\u79d2\u8655\u7406\u6578\u5341\u842c\u6b21\u8acb\u6c42\u3002<\/li>\n<li><strong>\u6578\u64da\u7d50\u69cb\u9748\u6d3b\uff1a<\/strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\uff0c\u65b9\u4fbf\u958b\u767c\u8005\u6839\u64da\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\u9078\u9805\uff1a<\/strong>\u652f\u6301 RDB \u548c AOF \u6301\u4e45\u5316\u65b9\u5f0f\uff0c\u80fd\u5920\u5728\u7cfb\u7d71\u5d29\u6f70\u6642\u4fdd\u8b77\u6578\u64da\u3002<\/li>\n<li><strong>\u5206\u4f48\u5f0f\u652f\u6301\uff1a<\/strong>\u53ef\u4ee5\u901a\u904e Redis Cluster \u5be6\u73fe\u6578\u64da\u7684\u5206\u4f48\u5f0f\u5b58\u5132\uff0c\u9032\u4e00\u6b65\u63d0\u5347\u7cfb\u7d71\u7684\u53ef\u64f4\u5c55\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e7%8f%be%e7%a7%92%e6%ae%ba%e7%b3%bb%e7%b5%b1%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-krpzRdLOSe\">\u5be6\u73fe\u79d2\u6bba\u7cfb\u7d71\u7684\u57fa\u672c\u6b65\u9a5f<\/h2>\n<p>\u4ee5\u4e0b\u662f\u57fa\u65bc Redis \u5be6\u73fe\u9ad8\u6027\u80fd\u79d2\u6bba\u7cfb\u7d71\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e8%a8%ad%e7%bd%ae%e5%95%86%e5%93%81%e5%ba%ab%e5%ad%98-krpzRdLOSe\">1. \u8a2d\u7f6e\u5546\u54c1\u5eab\u5b58<\/h3>\n<pre><code>SET stock:product_id 100<\/code><\/pre>\n<p>\u5728 Redis \u4e2d\u8a2d\u7f6e\u5546\u54c1\u7684\u521d\u59cb\u5eab\u5b58\uff0c\u9019\u88e1\u4ee5\u5546\u54c1 ID \u70ba\u4f8b\uff0c\u5eab\u5b58\u6578\u91cf\u70ba 100\u3002<\/p>\n<h3 id=\"2-%e8%99%95%e7%90%86%e7%a7%92%e6%ae%ba%e8%ab%8b%e6%b1%82-krpzRdLOSe\">2. \u8655\u7406\u79d2\u6bba\u8acb\u6c42<\/h3>\n<p>\u7576\u7528\u6236\u767c\u9001\u79d2\u6bba\u8acb\u6c42\u6642\uff0c\u7cfb\u7d71\u9700\u8981\u6aa2\u67e5\u5eab\u5b58\u4e26\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Lua \u8173\u672c\u793a\u4f8b\uff0c\u7528\u65bc\u539f\u5b50\u6027\u5730\u6aa2\u67e5\u548c\u6e1b\u5c11\u5eab\u5b58\uff1a<\/p>\n<pre><code>\nlocal stock = redis.call('GET', 'stock:product_id')\nif tonumber(stock) &gt; 0 then\n    redis.call('DECR', 'stock:product_id')\n    return 1 -- \u6210\u529f\nelse\n    return 0 -- \u5eab\u5b58\u4e0d\u8db3\nend\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u9996\u5148\u6aa2\u67e5\u5eab\u5b58\uff0c\u5982\u679c\u5eab\u5b58\u5927\u65bc 0\uff0c\u5247\u6e1b\u5c11\u5eab\u5b58\u4e26\u8fd4\u56de\u6210\u529f\u6a19\u8a8c\uff1b\u5426\u5247\u8fd4\u56de\u5eab\u5b58\u4e0d\u8db3\u7684\u6a19\u8a8c\u3002<\/p>\n<h3 id=\"3-%e8%a8%98%e9%8c%84%e8%a8%82%e5%96%ae-krpzRdLOSe\">3. \u8a18\u9304\u8a02\u55ae<\/h3>\n<p>\u7576\u7528\u6236\u6210\u529f\u6436\u8cfc\u5546\u54c1\u5f8c\uff0c\u9700\u8981\u5c07\u8a02\u55ae\u4fe1\u606f\u8a18\u9304\u5230\u6578\u64da\u5eab\u4e2d\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u7684\u54c8\u5e0c\u7d50\u69cb\u4f86\u5b58\u5132\u8a02\u55ae\u4fe1\u606f\uff1a<\/p>\n<pre><code>HSET order:order_id user_id product_id quantity<\/code><\/pre>\n<h2 id=\"%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96%e5%bb%ba%e8%ad%b0-krpzRdLOSe\">\u6027\u80fd\u512a\u5316\u5efa\u8b70<\/h2>\n<p>\u70ba\u4e86\u9032\u4e00\u6b65\u63d0\u5347\u79d2\u6bba\u7cfb\u7d71\u7684\u6027\u80fd\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u6d88\u606f\u968a\u5217\uff1a<\/strong>\u5c07\u8acb\u6c42\u653e\u5165\u6d88\u606f\u968a\u5217\u4e2d\uff0c\u5f8c\u53f0\u9032\u884c\u8655\u7406\uff0c\u6e1b\u5c11\u77ac\u6642\u8acb\u6c42\u5c0d\u7cfb\u7d71\u7684\u58d3\u529b\u3002<\/li>\n<li><strong>\u9650\u6d41\u7b56\u7565\uff1a<\/strong>\u5c0d\u8acb\u6c42\u9032\u884c\u9650\u6d41\uff0c\u907f\u514d\u7cfb\u7d71\u56e0\u904e\u8f09\u800c\u5d29\u6f70\u3002<\/li>\n<li><strong>\u6578\u64da\u5206\u7247\uff1a<\/strong>\u5c0d\u6578\u64da\u9032\u884c\u5206\u7247\u5b58\u5132\uff0c\u63d0\u5347\u8b80\u5beb\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-krpzRdLOSe\">\u7e3d\u7d50<\/h2>\n<p>\u57fa\u65bc Redis \u5be6\u73fe\u9ad8\u6027\u80fd\u79d2\u6bba\u7cfb\u7d71\u662f\u4e00\u500b\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u61c9\u5c0d\u9ad8\u4e26\u767c\u7684\u8acb\u6c42\u4e26\u4fdd\u6301\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u512a\u5316\uff0c\u53ef\u4ee5\u5728\u79d2\u6bba\u6d3b\u52d5\u4e2d\u63d0\u4f9b\u826f\u597d\u7684\u7528\u6236\u9ad4\u9a57\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u642d\u5efa\u9ad8\u6548\u7684\u670d\u52d9\u5668\u74b0\u5883\uff0c\u8acb\u53c3\u8003\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u52a9\u60a8\u8f15\u9b06\u61c9\u5c0d\u5404\u7a2e\u6311\u6230\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u57fa\u65bc Redis \u5be6\u73fe\u9ad8\u6027\u80fd\u79d2\u6bba\u7cfb\u7d71\uff0c\u63d0\u5347\u4ea4\u6613\u6548\u7387\uff0c\u78ba\u4fdd\u7528\u6236\u9ad4\u9a57\uff0c\u61c9\u5c0d\u9ad8\u4e26\u767c\u6311\u6230\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-161683","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161683","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=161683"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161683\/revisions"}],"predecessor-version":[{"id":161684,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161683\/revisions\/161684"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=161683"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=161683"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=161683"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}