{"id":126389,"date":"2024-10-26T04:19:25","date_gmt":"2024-10-25T20:19:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/126389\/"},"modified":"2024-10-26T04:19:26","modified_gmt":"2024-10-25T20:19:26","slug":"redis-%e7%a7%92%e6%ae%ba%e6%8a%80%e5%b7%a7%e5%bf%ab%e9%80%9f%e5%85%a5%e9%96%80%e8%bf%85%e9%80%9f%e7%8d%b2%e5%be%97%e7%8d%8e%e5%93%81","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/126389\/","title":{"rendered":"Redis \u79d2\u6bba\u6280\u5de7\u5feb\u901f\u5165\u9580\u8fc5\u901f\u7372\u5f97\u734e\u54c1"},"content":{"rendered":"<h1 id=\"redis-%e7%a7%92%e6%ae%ba%e6%8a%80%e5%b7%a7%e5%bf%ab%e9%80%9f%e5%85%a5%e9%96%80%e8%bf%85%e9%80%9f%e7%8d%b2%e5%be%97%e7%8d%8e%e5%93%81-hSVLFDKwEk\">Redis \u79d2\u6bba\u6280\u5de7\u5feb\u901f\u5165\u9580\u8fc5\u901f\u7372\u5f97\u734e\u54c1<\/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\u7684\u91cd\u8981\u624b\u6bb5\u3002\u9019\u7a2e\u6d3b\u52d5\u901a\u5e38\u6d89\u53ca\u9650\u91cf\u5546\u54c1\u7684\u5feb\u901f\u92b7\u552e\uff0c\u4e26\u4e14\u9700\u8981\u9ad8\u6548\u7684\u5f8c\u7aef\u7cfb\u7d71\u4f86\u8655\u7406\u5927\u91cf\u7684\u8acb\u6c42\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u5be6\u73fe\u79d2\u6bba\u6d3b\u52d5\u7684\u9700\u6c42\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5229\u7528 Redis \u4f86\u5be6\u73fe\u79d2\u6bba\u6d3b\u52d5\u7684\u57fa\u672c\u6280\u5de7\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-redis%ef%bc%9f-hSVLFDKwEk\">\u4ec0\u9ebc\u662f Redis\uff1f<\/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\u7b49\u3002\u7531\u65bc\u5176\u9ad8\u6548\u7684\u8b80\u5beb\u6027\u80fd\uff0cRedis \u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u5834\u666f\u3002<\/p>\n<h2 id=\"%e7%a7%92%e6%ae%ba%e6%b4%bb%e5%8b%95%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%b5%81%e7%a8%8b-hSVLFDKwEk\">\u79d2\u6bba\u6d3b\u52d5\u7684\u57fa\u672c\u6d41\u7a0b<\/h2>\n<p>\u79d2\u6bba\u6d3b\u52d5\u7684\u57fa\u672c\u6d41\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u5546\u54c1\u4e0a\u67b6\uff1a\u5546\u5bb6\u5c07\u5546\u54c1\u4e0a\u67b6\u4e26\u8a2d\u7f6e\u79d2\u6bba\u6642\u9593\u3002<\/li>\n<li>\u7528\u6236\u6436\u8cfc\uff1a\u7528\u6236\u5728\u79d2\u6bba\u958b\u59cb\u6642\u9032\u884c\u6436\u8cfc\u3002<\/li>\n<li>\u8acb\u6c42\u8655\u7406\uff1a\u7cfb\u7d71\u63a5\u6536\u7528\u6236\u8acb\u6c42\u4e26\u9032\u884c\u8655\u7406\u3002<\/li>\n<li>\u7d50\u679c\u53cd\u994b\uff1a\u7cfb\u7d71\u5c07\u6436\u8cfc\u7d50\u679c\u53cd\u994b\u7d66\u7528\u6236\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8-redis-%e5%af%a6%e7%8f%be%e7%a7%92%e6%ae%ba%e6%b4%bb%e5%8b%95-hSVLFDKwEk\">\u4f7f\u7528 Redis \u5be6\u73fe\u79d2\u6bba\u6d3b\u52d5<\/h2>\n<p>\u8981\u4f7f\u7528 Redis \u5be6\u73fe\u79d2\u6bba\u6d3b\u52d5\uff0c\u4e3b\u8981\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\u4f86\u9032\u884c\uff1a<\/p>\n<h3 id=\"1-%e8%a8%ad%e7%bd%ae%e5%95%86%e5%93%81%e5%ba%ab%e5%ad%98-hSVLFDKwEk\">1. \u8a2d\u7f6e\u5546\u54c1\u5eab\u5b58<\/h3>\n<p>\u9996\u5148\uff0c\u9700\u8981\u5728 Redis \u4e2d\u8a2d\u7f6e\u5546\u54c1\u7684\u5eab\u5b58\u6578\u91cf\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u7684\u5b57\u7b26\u4e32\u985e\u578b\u4f86\u5b58\u5132\u5eab\u5b58\u6578\u91cf\uff1a<\/p>\n<pre><code>SET product_stock 100<\/code><\/pre>\n<h3 id=\"2-%e5%af%a6%e7%8f%be%e6%90%b6%e8%b3%bc%e9%82%8f%e8%bc%af-hSVLFDKwEk\">2. \u5be6\u73fe\u6436\u8cfc\u908f\u8f2f<\/h3>\n<p>\u7576\u7528\u6236\u767c\u8d77\u6436\u8cfc\u8acb\u6c42\u6642\uff0c\u7cfb\u7d71\u9700\u8981\u6aa2\u67e5\u5eab\u5b58\u4e26\u9032\u884c\u6263\u6e1b\u3002\u9019\u88e1\u53ef\u4ee5\u4f7f\u7528 Redis \u7684\u539f\u5b50\u64cd\u4f5c\u4f86\u78ba\u4fdd\u5eab\u5b58\u7684\u6b63\u78ba\u6027\uff1a<\/p>\n<pre><code>\nif (DECR product_stock &gt;= 0) {\n    \/\/ \u6210\u529f\u6436\u8cfc\n} else {\n    \/\/ \u5eab\u5b58\u4e0d\u8db3\n}\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e9%9a%8a%e5%88%97%e8%99%95%e7%90%86%e8%ab%8b%e6%b1%82-hSVLFDKwEk\">3. \u4f7f\u7528\u968a\u5217\u8655\u7406\u8acb\u6c42<\/h3>\n<p>\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u76f4\u63a5\u64cd\u4f5c\u5eab\u5b58\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u7684\u5217\u8868\u4f86\u5be6\u73fe\u8acb\u6c42\u7684\u6392\u968a\u8655\u7406\uff1a<\/p>\n<pre><code>LPUSH request_queue user_id<\/code><\/pre>\n<p>\u7136\u5f8c\uff0c\u4f7f\u7528\u5de5\u4f5c\u9032\u7a0b\u4f86\u8655\u7406\u8acb\u6c42\uff0c\u78ba\u4fdd\u6bcf\u500b\u8acb\u6c42\u90fd\u80fd\u6b63\u78ba\u5730\u6263\u6e1b\u5eab\u5b58\u3002<\/p>\n<h3 id=\"4-%e7%b5%90%e6%9e%9c%e5%8f%8d%e9%a5%8b-hSVLFDKwEk\">4. \u7d50\u679c\u53cd\u994b<\/h3>\n<p>\u5728\u8655\u7406\u5b8c\u8acb\u6c42\u5f8c\uff0c\u7cfb\u7d71\u9700\u8981\u5c07\u7d50\u679c\u53cd\u994b\u7d66\u7528\u6236\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u7684\u767c\u5e03\/\u8a02\u95b1\u529f\u80fd\u4f86\u5be6\u73fe\u5be6\u6642\u901a\u77e5\uff1a<\/p>\n<pre><code>PUBLISH result_channel \"user_id: success\"<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-hSVLFDKwEk\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u5be6\u73fe\u79d2\u6bba\u6d3b\u52d5\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd Redis \u7684\u6301\u4e45\u5316\u8a2d\u7f6e\uff0c\u4ee5\u9632\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li>\u8003\u616e\u4f7f\u7528 Redis \u96c6\u7fa4\u4f86\u63d0\u9ad8\u53ef\u7528\u6027\u548c\u64f4\u5c55\u6027\u3002<\/li>\n<li>\u5c0d\u65bc\u9ad8\u4e26\u767c\u5834\u666f\uff0c\u5efa\u8b70\u4f7f\u7528\u5206\u5e03\u5f0f\u9396\u4f86\u907f\u514d\u8d85\u8ce3\u7684\u60c5\u6cc1\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-hSVLFDKwEk\">\u7e3d\u7d50<\/h2>\n<p>Redis \u662f\u5be6\u73fe\u79d2\u6bba\u6d3b\u52d5\u7684\u7406\u60f3\u9078\u64c7\uff0c\u56e0\u70ba\u5176\u9ad8\u6548\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\u80fd\u5920\u6eff\u8db3\u9ad8\u4e26\u767c\u7684\u9700\u6c42\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u7528\u6236\u7684\u6436\u8cfc\u9ad4\u9a57\uff0c\u4e26\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u9999\u6e2f\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u74b0\u5883\u4e2d\u90e8\u7f72 Redis \u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1Redis\u79d2\u6bba\u6280\u5de7\uff0c\u5feb\u901f\u5165\u9580\uff0c\u52a9\u4f60\u8fc5\u901f\u7372\u5f97\u734e\u54c1\uff0c\u63d0\u5347\u8cfc\u7269\u6548\u7387\uff0c\u4eab\u53d7\u79d2\u6bba\u6a02\u8da3\uff01<\/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-126389","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126389","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=126389"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126389\/revisions"}],"predecessor-version":[{"id":126390,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126389\/revisions\/126390"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=126389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=126389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=126389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}