{"id":126399,"date":"2024-10-26T04:24:20","date_gmt":"2024-10-25T20:24:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/126399\/"},"modified":"2024-10-26T04:24:20","modified_gmt":"2024-10-25T20:24:20","slug":"redis-%e7%a7%92%e6%ae%ba%e9%8e%96%e5%ae%9a%e5%ba%ab%e5%ad%98%ef%bc%8c%e7%a2%ba%e4%bf%9d%e5%ae%89%e5%85%a8%e9%98%b2%e8%b6%85%e8%b3%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/126399\/","title":{"rendered":"Redis \u79d2\u6bba\u9396\u5b9a\u5eab\u5b58\uff0c\u78ba\u4fdd\u5b89\u5168\u9632\u8d85\u8ce3"},"content":{"rendered":"<h1 id=\"redis-%e7%a7%92%e6%ae%ba%e9%8e%96%e5%ae%9a%e5%ba%ab%e5%ad%98%ef%bc%8c%e7%a2%ba%e4%bf%9d%e5%ae%89%e5%85%a8%e9%98%b2%e8%b6%85%e8%b3%a3-cRwomFQtfD\">Redis \u79d2\u6bba\u9396\u5b9a\u5eab\u5b58\uff0c\u78ba\u4fdd\u5b89\u5168\u9632\u8d85\u8ce3<\/h1>\n<p>\u5728\u96fb\u5b50\u5546\u52d9\u7684\u4e16\u754c\u4e2d\uff0c\u79d2\u6bba\u6d3b\u52d5\u5df2\u6210\u70ba\u5438\u5f15\u9867\u5ba2\u7684\u91cd\u8981\u624b\u6bb5\u3002\u7136\u800c\uff0c\u96a8\u8457\u9700\u6c42\u7684\u6fc0\u589e\uff0c\u5982\u4f55\u6709\u6548\u7ba1\u7406\u5eab\u5b58\u4e26\u9632\u6b62\u8d85\u8ce3\u6210\u70ba\u4e86\u5546\u5bb6\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u9396\u5b9a\u6a5f\u5236\uff0c\u80fd\u5920\u5e6b\u52a9\u5546\u5bb6\u5728\u79d2\u6bba\u6d3b\u52d5\u4e2d\u78ba\u4fdd\u5eab\u5b58\u7684\u5b89\u5168\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%b6%85%e8%b3%a3%ef%bc%9f-cRwomFQtfD\">\u4ec0\u9ebc\u662f\u8d85\u8ce3\uff1f<\/h2>\n<p>\u8d85\u8ce3\u662f\u6307\u5546\u5bb6\u5728\u5eab\u5b58\u4e0d\u8db3\u7684\u60c5\u6cc1\u4e0b\uff0c\u4ecd\u7136\u63a5\u53d7\u9867\u5ba2\u7684\u8a02\u55ae\uff0c\u5c0e\u81f4\u6700\u7d42\u7121\u6cd5\u5c65\u884c\u8a02\u55ae\u7684\u60c5\u6cc1\u3002\u9019\u4e0d\u50c5\u6703\u5f71\u97ff\u9867\u5ba2\u7684\u8cfc\u7269\u9ad4\u9a57\uff0c\u9084\u53ef\u80fd\u640d\u5bb3\u5546\u5bb6\u7684\u54c1\u724c\u5f62\u8c61\u3002\u56e0\u6b64\uff0c\u9632\u6b62\u8d85\u8ce3\u662f\u6bcf\u500b\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u5fc5\u9808\u91cd\u8996\u7684\u554f\u984c\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-cRwomFQtfD\">Redis \u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis \u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u56e0\u5176\u9ad8\u6548\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u5b83\u652f\u6301\u591a\u7a2e\u6578\u64da\u985e\u578b\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\uff0c\u4e26\u4e14\u80fd\u5920\u5728\u5167\u5b58\u4e2d\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u6578\u64da\u3002\u9019\u4f7f\u5f97 Redis \u6210\u70ba\u8655\u7406\u9ad8\u4e26\u767c\u8acb\u6c42\u7684\u7406\u60f3\u9078\u64c7\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-redis-%e9%8e%96%e5%ae%9a%e5%ba%ab%e5%ad%98%e7%9a%84%e7%ad%96%e7%95%a5-cRwomFQtfD\">\u4f7f\u7528 Redis \u9396\u5b9a\u5eab\u5b58\u7684\u7b56\u7565<\/h2>\n<p>\u5728\u79d2\u6bba\u6d3b\u52d5\u4e2d\uff0c\u4f7f\u7528 Redis \u9396\u5b9a\u5eab\u5b58\u7684\u57fa\u672c\u601d\u8def\u662f\u901a\u904e\u8a2d\u7f6e\u9396\u4f86\u63a7\u5236\u5c0d\u5eab\u5b58\u7684\u8a2a\u554f\u3002\u4ee5\u4e0b\u662f\u5be6\u73fe\u9019\u4e00\u7b56\u7565\u7684\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e8%a8%ad%e7%bd%ae%e5%ba%ab%e5%ad%98%e6%95%b8%e9%87%8f-cRwomFQtfD\">1. \u8a2d\u7f6e\u5eab\u5b58\u6578\u91cf<\/h3>\n<pre><code>SET stock 100<\/code><\/pre>\n<p>\u9996\u5148\uff0c\u5c07\u5eab\u5b58\u6578\u91cf\u8a2d\u7f6e\u70ba 100\u3002<\/p>\n<h3 id=\"2-%e7%8d%b2%e5%8f%96%e9%8e%96-cRwomFQtfD\">2. \u7372\u53d6\u9396<\/h3>\n<p>\u5728\u8655\u7406\u8a02\u55ae\u4e4b\u524d\uff0c\u5546\u5bb6\u9700\u8981\u7372\u53d6\u4e00\u500b\u9396\uff0c\u4ee5\u78ba\u4fdd\u540c\u4e00\u6642\u9593\u53ea\u6709\u4e00\u500b\u8acb\u6c42\u80fd\u5920\u4fee\u6539\u5eab\u5b58\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u7684 SETNX \u547d\u4ee4\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>SETNX lock 1<\/code><\/pre>\n<p>\u5982\u679c\u8fd4\u56de\u503c\u70ba 1\uff0c\u5247\u8868\u793a\u6210\u529f\u7372\u53d6\u9396\uff1b\u5982\u679c\u8fd4\u56de\u503c\u70ba 0\uff0c\u5247\u8868\u793a\u9396\u5df2\u88ab\u5176\u4ed6\u8acb\u6c42\u7372\u53d6\u3002<\/p>\n<h3 id=\"3-%e6%b8%9b%e5%b0%91%e5%ba%ab%e5%ad%98-cRwomFQtfD\">3. \u6e1b\u5c11\u5eab\u5b58<\/h3>\n<p>\u5728\u6210\u529f\u7372\u53d6\u9396\u5f8c\uff0c\u5546\u5bb6\u53ef\u4ee5\u5b89\u5168\u5730\u6e1b\u5c11\u5eab\u5b58\uff1a<\/p>\n<pre><code>DECR stock<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5eab\u5b58\u4e0d\u6703\u88ab\u8d85\u8ce3\u3002<\/p>\n<h3 id=\"4-%e9%87%8b%e6%94%be%e9%8e%96-cRwomFQtfD\">4. \u91cb\u653e\u9396<\/h3>\n<p>\u5b8c\u6210\u5eab\u5b58\u6e1b\u5c11\u5f8c\uff0c\u5546\u5bb6\u9700\u8981\u91cb\u653e\u9396\uff0c\u4ee5\u4fbf\u5176\u4ed6\u8acb\u6c42\u53ef\u4ee5\u7e7c\u7e8c\u8655\u7406\uff1a<\/p>\n<pre><code>DEL lock<\/code><\/pre>\n<h2 id=\"redis-%e7%9a%84%e5%84%aa%e5%8b%a2-cRwomFQtfD\">Redis \u7684\u512a\u52e2<\/h2>\n<p>\u4f7f\u7528 Redis \u9032\u884c\u5eab\u5b58\u7ba1\u7406\u6709\u591a\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u6027\u80fd\uff1a<\/strong>Redis \u5728\u5167\u5b58\u4e2d\u64cd\u4f5c\u6578\u64da\uff0c\u8b80\u53d6\u548c\u5beb\u5165\u901f\u5ea6\u6975\u5feb\uff0c\u80fd\u5920\u61c9\u5c0d\u9ad8\u4e26\u767c\u8acb\u6c42\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\u8f15\u9b06\u4e0a\u624b\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u80fd\u5920\u6eff\u8db3\u4e0d\u540c\u5834\u666f\u7684\u9700\u6c42\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-cRwomFQtfD\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u96fb\u5b50\u5546\u52d9\u7684\u79d2\u6bba\u6d3b\u52d5\u4e2d\uff0c\u4f7f\u7528 Redis \u4f86\u9396\u5b9a\u5eab\u5b58\u662f\u4e00\u7a2e\u6709\u6548\u7684\u9632\u6b62\u8d85\u8ce3\u7684\u7b56\u7565\u3002\u901a\u904e\u5408\u7406\u7684\u9396\u5b9a\u6a5f\u5236\uff0c\u5546\u5bb6\u53ef\u4ee5\u78ba\u4fdd\u5eab\u5b58\u7684\u5b89\u5168\u6027\uff0c\u63d0\u5347\u9867\u5ba2\u7684\u8cfc\u7269\u9ad4\u9a57\u3002\u96a8\u8457\u6280\u8853\u7684\u767c\u5c55\uff0c\u8d8a\u4f86\u8d8a\u591a\u7684\u5546\u5bb6\u958b\u59cb\u63a1\u7528 Redis \u4f86\u89e3\u6c7a\u5eab\u5b58\u7ba1\u7406\u7684\u554f\u984c\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis \u79d2\u6bba\u9396\u5b9a\u5eab\u5b58\uff0c\u78ba\u4fdd\u5b89\u5168\u9632\u8d85\u8ce3\uff0c\u63d0\u5347\u8cfc\u7269\u9ad4\u9a57\uff0c\u907f\u514d\u5eab\u5b58\u932f\u8aa4\uff0c\u5be6\u73fe\u9ad8\u6548\u4ea4\u6613\u7ba1\u7406\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-126399","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126399","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=126399"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126399\/revisions"}],"predecessor-version":[{"id":126400,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126399\/revisions\/126400"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=126399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=126399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=126399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}