{"id":153427,"date":"2024-11-02T07:21:18","date_gmt":"2024-11-01T23:21:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/153427\/"},"modified":"2024-11-02T07:21:19","modified_gmt":"2024-11-01T23:21:19","slug":"%e5%ad%98-redis-%e5%af%a6%e7%8f%be%e8%bc%95%e9%ac%86%e5%bf%ab%e6%8d%b7%e7%9a%84%e7%a7%92%e6%ae%ba%e5%ba%ab%e5%ad%98%e6%8e%a7%e5%88%b6%ef%bc%88redis-%e7%a7%92%e6%ae%ba%e6%89%a3%e5%ba%ab%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/153427\/","title":{"rendered":"\u5b58 Redis \u5be6\u73fe\u8f15\u9b06\u5feb\u6377\u7684\u79d2\u6bba\u5eab\u5b58\u63a7\u5236\uff08Redis \u79d2\u6bba\u6263\u5eab\uff09"},"content":{"rendered":"<h1 id=\"%e5%ad%98-redis-%e5%af%a6%e7%8f%be%e8%bc%95%e9%ac%86%e5%bf%ab%e6%8d%b7%e7%9a%84%e7%a7%92%e6%ae%ba%e5%ba%ab%e5%ad%98%e6%8e%a7%e5%88%b6%ef%bc%88redis-%e7%a7%92%e6%ae%ba%e6%89%a3%e5%ba%ab%ef%bc%89-oCPcUJOllT\">\u5b58 Redis \u5be6\u73fe\u8f15\u9b06\u5feb\u6377\u7684\u79d2\u6bba\u5eab\u5b58\u63a7\u5236\uff08Redis \u79d2\u6bba\u6263\u5eab\uff09<\/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\u6fc0\u589e\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u5eab\u5b58\u6210\u70ba\u4e86\u4e00\u500b\u6311\u6230\u3002Redis\uff0c\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u7406\u60f3\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u5be6\u73fe\u79d2\u6bba\u5eab\u5b58\u63a7\u5236\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528 Redis \u4f86\u5be6\u73fe\u8f15\u9b06\u5feb\u6377\u7684\u79d2\u6bba\u5eab\u5b58\u63a7\u5236\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%a7%92%e6%ae%ba%e6%b4%bb%e5%8b%95%ef%bc%9f-oCPcUJOllT\">\u4ec0\u9ebc\u662f\u79d2\u6bba\u6d3b\u52d5\uff1f<\/h2>\n<p>\u79d2\u6bba\u6d3b\u52d5\u662f\u6307\u5546\u5bb6\u5728\u7279\u5b9a\u6642\u9593\u5167\u4ee5\u6975\u4f4e\u7684\u50f9\u683c\u51fa\u552e\u6709\u9650\u6578\u91cf\u7684\u5546\u54c1\uff0c\u901a\u5e38\u5438\u5f15\u5927\u91cf\u6d88\u8cbb\u8005\u53c3\u8207\u3002\u9019\u7a2e\u6d3b\u52d5\u7684\u6210\u529f\u8207\u5426\u53d6\u6c7a\u65bc\u5eab\u5b58\u7ba1\u7406\u7684\u6548\u7387\uff0c\u5c24\u5176\u662f\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87-redis%ef%bc%9f-oCPcUJOllT\">\u70ba\u4ec0\u9ebc\u9078\u64c7 Redis\uff1f<\/h2>\n<p>Redis \u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u56e0\u5176\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 Redis \u9032\u884c\u79d2\u6bba\u5eab\u5b58\u63a7\u5236\u7684\u5e7e\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis \u7684\u6578\u64da\u64cd\u4f5c\u901f\u5ea6\u6975\u5feb\uff0c\u80fd\u5920\u8655\u7406\u6bcf\u79d2\u6578\u5341\u842c\u6b21\u7684\u8acb\u6c42\uff0c\u9069\u5408\u9ad8\u4e26\u767c\u5834\u666f\u3002<\/li>\n<li><strong>\u6578\u64da\u6301\u4e45\u5316\uff1a<\/strong>Redis \u652f\u6301\u591a\u7a2e\u6301\u4e45\u5316\u65b9\u5f0f\uff0c\u80fd\u5920\u5728\u7cfb\u7d71\u5d29\u6f70\u6642\u4fdd\u8b77\u6578\u64da\u3002<\/li>\n<li><strong>\u7c21\u55ae\u6613\u7528\uff1a<\/strong>Redis \u63d0\u4f9b\u4e86\u7c21\u55ae\u7684 API\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5feb\u901f\u4e0a\u624b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-redis-%e5%af%a6%e7%8f%be%e7%a7%92%e6%ae%ba%e5%ba%ab%e5%ad%98%e6%8e%a7%e5%88%b6-oCPcUJOllT\">\u5982\u4f55\u4f7f\u7528 Redis \u5be6\u73fe\u79d2\u6bba\u5eab\u5b58\u63a7\u5236<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528 Redis \u9032\u884c\u79d2\u6bba\u5eab\u5b58\u63a7\u5236\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e5%88%9d%e5%a7%8b%e5%8c%96%e5%ba%ab%e5%ad%98-oCPcUJOllT\">1. \u521d\u59cb\u5316\u5eab\u5b58<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u5728 Redis \u4e2d\u8a2d\u7f6e\u5546\u54c1\u7684\u521d\u59cb\u5eab\u5b58\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u67d0\u5546\u54c1\u7684\u5eab\u5b58\u70ba 100 \u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>SET stock:product_id 100<\/code><\/pre>\n<h3 id=\"2-%e8%99%95%e7%90%86%e7%a7%92%e6%ae%ba%e8%ab%8b%e6%b1%82-oCPcUJOllT\">2. \u8655\u7406\u79d2\u6bba\u8acb\u6c42<\/h3>\n<p>\u7576\u7528\u6236\u767c\u8d77\u79d2\u6bba\u8acb\u6c42\u6642\uff0c\u60a8\u9700\u8981\u6aa2\u67e5\u5eab\u5b58\u4e26\u9032\u884c\u6263\u6e1b\u3002\u9019\u53ef\u4ee5\u901a\u904e Redis \u7684\u539f\u5b50\u64cd\u4f5c\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>DECR stock:product_id<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u6703\u5c07\u5eab\u5b58\u6e1b\u5c11 1\u3002\u5982\u679c\u5eab\u5b58\u5df2\u7d93\u70ba 0\uff0c\u5247\u8868\u793a\u5546\u54c1\u5df2\u552e\u7f44\u3002<\/p>\n<h3 id=\"3-%e7%a2%ba%e4%bf%9d%e8%ab%8b%e6%b1%82%e7%9a%84%e5%8e%9f%e5%ad%90%e6%80%a7-oCPcUJOllT\">3. \u78ba\u4fdd\u8acb\u6c42\u7684\u539f\u5b50\u6027<\/h3>\n<p>\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u5eab\u5b58\u7684\u6263\u6e1b\u64cd\u4f5c\u662f\u539f\u5b50\u6027\u7684\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u7684\u4e8b\u52d9\u529f\u80fd\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>\nMULTI\nDECR stock:product_id\nEXEC\n<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u57f7\u884c\u6263\u6e1b\u64cd\u4f5c\u6642\uff0c\u4e0d\u6703\u6709\u5176\u4ed6\u8acb\u6c42\u5e72\u64fe\u3002<\/p>\n<h3 id=\"4-%e8%99%95%e7%90%86%e5%94%ae%e7%bd%84%e6%83%85%e6%b3%81-oCPcUJOllT\">4. \u8655\u7406\u552e\u7f44\u60c5\u6cc1<\/h3>\n<p>\u5982\u679c\u5eab\u5b58\u6e1b\u81f3 0\uff0c\u60a8\u9700\u8981\u5411\u7528\u6236\u8fd4\u56de\u76f8\u61c9\u7684\u63d0\u793a\u4fe1\u606f\uff0c\u544a\u77e5\u5546\u54c1\u5df2\u552e\u7f44\u3002\u9019\u53ef\u4ee5\u901a\u904e\u6aa2\u67e5 DECR \u547d\u4ee4\u7684\u8fd4\u56de\u503c\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>\nif (result &lt; 0) {\n    \/\/ \u5546\u54c1\u5df2\u552e\u7f44\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-oCPcUJOllT\">\u7d50\u8ad6<\/h2>\n<p>\u5229\u7528 Redis \u9032\u884c\u79d2\u6bba\u5eab\u5b58\u63a7\u5236\uff0c\u4e0d\u50c5\u80fd\u5920\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\uff0c\u9084\u80fd\u6709\u6548\u5730\u7ba1\u7406\u9ad8\u4e26\u767c\u7684\u8acb\u6c42\u3002\u901a\u904e\u7c21\u55ae\u7684\u547d\u4ee4\u548c\u539f\u5b50\u64cd\u4f5c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5be6\u73fe\u79d2\u6bba\u6d3b\u52d5\u7684\u5eab\u5b58\u7ba1\u7406\uff0c\u5f9e\u800c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u548c\u92b7\u552e\u6548\u7387\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\u652f\u6301\u60a8\u7684\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\uff0cServer.HK \u63d0\u4f9b\u7684\u670d\u52d9\u5c07\u662f\u60a8\u7684\u7406\u60f3\u9078\u64c7\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u65b9\u6848\uff0c\u6211\u5011\u90fd\u80fd\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528 Redis \u5be6\u73fe\u79d2\u6bba\u5eab\u5b58\u63a7\u5236\uff0c\u8f15\u9b06\u7ba1\u7406\u9ad8\u4e26\u767c\u8a02\u55ae\uff0c\u78ba\u4fdd\u5eab\u5b58\u6e96\u78ba\uff0c\u63d0\u5347\u7528\u6236\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-153427","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153427","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=153427"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153427\/revisions"}],"predecessor-version":[{"id":153428,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153427\/revisions\/153428"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=153427"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=153427"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=153427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}