{"id":129279,"date":"2024-10-26T20:25:19","date_gmt":"2024-10-26T12:25:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129279\/"},"modified":"2024-10-26T20:25:20","modified_gmt":"2024-10-26T12:25:20","slug":"redis%e7%9e%ac%e9%96%93%e8%a7%b8%e7%99%bc%e8%a8%82%e5%96%ae%e4%ba%a4%e6%98%93%e7%9a%84%e6%96%b0%e6%96%b9%e5%bc%8f%ef%bc%88redis%e8%a7%b8%e7%99%bc%e8%a8%82%e5%96%ae%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129279\/","title":{"rendered":"Redis\u77ac\u9593\u89f8\u767c\u8a02\u55ae\u4ea4\u6613\u7684\u65b0\u65b9\u5f0f\uff08redis\u89f8\u767c\u8a02\u55ae\uff09"},"content":{"rendered":"<h1 id=\"redis%e7%9e%ac%e9%96%93%e8%a7%b8%e7%99%bc%e8%a8%82%e5%96%ae%e4%ba%a4%e6%98%93%e7%9a%84%e6%96%b0%e6%96%b9%e5%bc%8f%ef%bc%88redis%e8%a7%b8%e7%99%bc%e8%a8%82%e5%96%ae%ef%bc%89-hjHKuMHuUK\">Redis\u77ac\u9593\u89f8\u767c\u8a02\u55ae\u4ea4\u6613\u7684\u65b0\u65b9\u5f0f\uff08redis\u89f8\u767c\u8a02\u55ae\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u96fb\u5b50\u5546\u52d9\u74b0\u5883\u4e2d\uff0c\u5feb\u901f\u4e14\u9ad8\u6548\u7684\u4ea4\u6613\u8655\u7406\u7cfb\u7d71\u5c0d\u65bc\u4f01\u696d\u7684\u6210\u529f\u81f3\u95dc\u91cd\u8981\u3002\u96a8\u8457\u6280\u8853\u7684\u9032\u6b65\uff0c\u8d8a\u4f86\u8d8a\u591a\u7684\u4f01\u696d\u958b\u59cb\u63a1\u7528Redis\u4f5c\u70ba\u5176\u5f8c\u7aef\u6578\u64da\u5eab\uff0c\u4ee5\u5be6\u73fe\u77ac\u9593\u89f8\u767c\u8a02\u55ae\u4ea4\u6613\u7684\u9700\u6c42\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u5982\u4f55\u5728\u8a02\u55ae\u4ea4\u6613\u4e2d\u767c\u63ee\u95dc\u9375\u4f5c\u7528\uff0c\u4ee5\u53ca\u5176\u80cc\u5f8c\u7684\u6280\u8853\u539f\u7406\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%ef%bc%9f-hjHKuMHuUK\">\u4ec0\u9ebc\u662fRedis\uff1f<\/h2>\n<p>Redis\u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u6578\u64da\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u5834\u666f\u3002\u5176\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u9ad8\u6548\u7684\u6578\u64da\u5b58\u53d6\u901f\u5ea6\uff1aRedis\u5c07\u6578\u64da\u5b58\u5132\u5728\u5167\u5b58\u4e2d\uff0c\u8b80\u53d6\u548c\u5beb\u5165\u901f\u5ea6\u6975\u5feb\u3002<\/li>\n<li>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff1a\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\uff0c\u9748\u6d3b\u6027\u9ad8\u3002<\/li>\n<li>\u6301\u4e45\u5316\u9078\u9805\uff1a\u652f\u6301\u5c07\u6578\u64da\u6301\u4e45\u5316\u5230\u78c1\u789f\uff0c\u78ba\u4fdd\u6578\u64da\u4e0d\u6703\u56e0\u7cfb\u7d71\u5d29\u6f70\u800c\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"redis%e5%9c%a8%e8%a8%82%e5%96%ae%e4%ba%a4%e6%98%93%e4%b8%ad%e7%9a%84%e6%87%89%e7%94%a8-hjHKuMHuUK\">Redis\u5728\u8a02\u55ae\u4ea4\u6613\u4e2d\u7684\u61c9\u7528<\/h2>\n<p>\u5728\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u4e2d\uff0c\u8a02\u55ae\u4ea4\u6613\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u591a\u500b\u6b65\u9a5f\uff0c\u5305\u62ec\u7528\u6236\u4e0b\u55ae\u3001\u652f\u4ed8\u8655\u7406\u3001\u5eab\u5b58\u6aa2\u67e5\u7b49\u3002\u4f7f\u7528Redis\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u9019\u4e9b\u904e\u7a0b\u7684\u6548\u7387\u3002<\/p>\n<h3 id=\"1-%e5%af%a6%e6%99%82%e6%95%b8%e6%93%9a%e8%99%95%e7%90%86-hjHKuMHuUK\">1. \u5be6\u6642\u6578\u64da\u8655\u7406<\/h3>\n<p>Redis\u7684\u9ad8\u6548\u6027\u80fd\u4f7f\u5176\u6210\u70ba\u5be6\u6642\u6578\u64da\u8655\u7406\u7684\u7406\u60f3\u9078\u64c7\u3002\u7576\u7528\u6236\u4e0b\u55ae\u6642\uff0c\u7cfb\u7d71\u53ef\u4ee5\u7acb\u5373\u5c07\u8a02\u55ae\u4fe1\u606f\u5beb\u5165Redis\uff0c\u4e26\u89f8\u767c\u76f8\u61c9\u7684\u8655\u7406\u6d41\u7a0b\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n# \u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u8a02\u55ae\u6578\u64da\u7d50\u69cb\norder = {\n    \"order_id\": \"12345\",\n    \"user_id\": \"67890\",\n    \"product_id\": \"abcde\",\n    \"quantity\": 1\n}\n\n# \u5c07\u8a02\u55ae\u5beb\u5165Redis\nredis_client.hset(\"order:12345\", mapping=order)\n<\/code><\/pre>\n<h3 id=\"2-%e6%b6%88%e6%81%af%e9%9a%8a%e5%88%97-hjHKuMHuUK\">2. \u6d88\u606f\u968a\u5217<\/h3>\n<p>Redis\u9084\u53ef\u4ee5\u7528\u4f5c\u6d88\u606f\u968a\u5217\uff0c\u5e6b\u52a9\u7cfb\u7d71\u5728\u4e0d\u540c\u670d\u52d9\u4e4b\u9593\u50b3\u905e\u4fe1\u606f\u3002\u4f8b\u5982\uff0c\u7576\u7528\u6236\u4e0b\u55ae\u5f8c\uff0c\u53ef\u4ee5\u5c07\u8a02\u55ae\u4fe1\u606f\u63a8\u9001\u5230\u4e00\u500b\u6d88\u606f\u968a\u5217\u4e2d\uff0c\u7136\u5f8c\u7531\u5f8c\u7aef\u670d\u52d9\u9032\u884c\u8655\u7406\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u7cfb\u7d71\u7684\u8026\u5408\u5ea6\uff0c\u63d0\u9ad8\u53ef\u64f4\u5c55\u6027\u3002<\/p>\n<pre><code>\n# \u5c07\u8a02\u55ae\u63a8\u9001\u5230\u6d88\u606f\u968a\u5217\nredis_client.lpush(\"order_queue\", json.dumps(order))\n<\/code><\/pre>\n<h3 id=\"3-%e4%ba%8b%e5%8b%99%e8%99%95%e7%90%86-hjHKuMHuUK\">3. \u4e8b\u52d9\u8655\u7406<\/h3>\n<p>\u5728\u8a02\u55ae\u4ea4\u6613\u4e2d\uff0c\u4e8b\u52d9\u7684\u5b8c\u6574\u6027\u81f3\u95dc\u91cd\u8981\u3002Redis\u652f\u6301\u539f\u5b50\u64cd\u4f5c\uff0c\u9019\u610f\u5473\u8457\u53ef\u4ee5\u78ba\u4fdd\u5728\u591a\u500b\u64cd\u4f5c\u4e2d\uff0c\u53ea\u6709\u7576\u6240\u6709\u64cd\u4f5c\u90fd\u6210\u529f\u6642\uff0c\u624d\u6703\u63d0\u4ea4\u8b8a\u66f4\u3002\u9019\u5c0d\u65bc\u78ba\u4fdd\u5eab\u5b58\u6e96\u78ba\u6027\u548c\u9632\u6b62\u91cd\u8907\u8a02\u55ae\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<pre><code>\n# \u4f7f\u7528Redis\u7684\u4e8b\u52d9\u529f\u80fd\nwith redis_client.pipeline() as pipe:\n    try:\n        pipe.watch(\"inventory:product_id\")\n        current_stock = pipe.get(\"inventory:product_id\")\n        if current_stock &gt;= order[\"quantity\"]:\n            pipe.multi()\n            pipe.decr(\"inventory:product_id\", order[\"quantity\"])\n            pipe.execute()\n    except redis.WatchError:\n        print(\"\u5eab\u5b58\u4e0d\u8db3\uff0c\u8acb\u7a0d\u5f8c\u518d\u8a66\u3002\")\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-hjHKuMHuUK\">\u7d50\u8ad6<\/h2>\n<p>Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u70ba\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u63d0\u4f9b\u4e86\u77ac\u9593\u89f8\u767c\u8a02\u55ae\u4ea4\u6613\u7684\u65b0\u65b9\u5f0f\u3002\u901a\u904e\u5be6\u6642\u6578\u64da\u8655\u7406\u3001\u6d88\u606f\u968a\u5217\u548c\u4e8b\u52d9\u8655\u7406\u7b49\u529f\u80fd\uff0c\u4f01\u696d\u80fd\u5920\u63d0\u9ad8\u4ea4\u6613\u6548\u7387\uff0c\u589e\u5f37\u7528\u6236\u9ad4\u9a57\u3002\u96a8\u8457\u6280\u8853\u7684\u9032\u4e00\u6b65\u767c\u5c55\uff0cRedis\u7684\u61c9\u7528\u5834\u666f\u5c07\u6703\u66f4\u52a0\u5ee3\u6cdb\uff0c\u6210\u70ba\u672a\u4f86\u96fb\u5b50\u5546\u52d9\u7cfb\u7d71\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u548c<code><a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a><\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u77ac\u9593\u89f8\u767c\u8a02\u55ae\u4ea4\u6613\u7684\u65b0\u65b9\u5f0f\uff0c\u63d0\u5347\u6548\u7387\u8207\u53cd\u61c9\u901f\u5ea6\uff0c\u8b93\u60a8\u7684\u696d\u52d9\u904b\u4f5c\u66f4\u6d41\u66a2\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-129279","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129279","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=129279"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129279\/revisions"}],"predecessor-version":[{"id":129280,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129279\/revisions\/129280"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}