{"id":128671,"date":"2024-10-26T15:53:15","date_gmt":"2024-10-26T07:53:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/128671\/"},"modified":"2024-10-26T15:53:15","modified_gmt":"2024-10-26T07:53:15","slug":"redis%e5%af%a6%e7%8f%be%e8%a8%88%e6%95%b8%e4%bf%a1%e8%99%9f%e9%87%8f%e7%9a%84%e6%9c%89%e6%95%88%e7%ae%a1%e7%90%86%ef%bc%88redis-%e8%a8%88%e6%95%b8%e4%bf%a1%e8%99%9f%e9%87%8f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/128671\/","title":{"rendered":"Redis\u5be6\u73fe\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u6709\u6548\u7ba1\u7406\uff08redis \u8a08\u6578\u4fe1\u865f\u91cf\uff09"},"content":{"rendered":"<h1 id=\"redis%e5%af%a6%e7%8f%be%e8%a8%88%e6%95%b8%e4%bf%a1%e8%99%9f%e9%87%8f%e7%9a%84%e6%9c%89%e6%95%88%e7%ae%a1%e7%90%86%ef%bc%88redis-%e8%a8%88%e6%95%b8%e4%bf%a1%e8%99%9f%e9%87%8f%ef%bc%89-KtpymZdKhT\">Redis\u5be6\u73fe\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u6709\u6548\u7ba1\u7406\uff08redis \u8a08\u6578\u4fe1\u865f\u91cf\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u8cc7\u6e90\u7684\u6709\u6548\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002\u8a08\u6578\u4fe1\u865f\u91cf\u662f\u4e00\u7a2e\u5e38\u7528\u7684\u540c\u6b65\u6a5f\u5236\uff0c\u80fd\u5920\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u6578\u64da\u7d50\u69cb\u548c\u64cd\u4f5c\uff0c\u80fd\u5920\u8f15\u9b06\u5be6\u73fe\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u7ba1\u7406\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Redis\u4f86\u5be6\u73fe\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u6709\u6548\u7ba1\u7406\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%a8%88%e6%95%b8%e4%bf%a1%e8%99%9f%e9%87%8f%ef%bc%9f-KtpymZdKhT\">\u4ec0\u9ebc\u662f\u8a08\u6578\u4fe1\u865f\u91cf\uff1f<\/h2>\n<p>\u8a08\u6578\u4fe1\u865f\u91cf\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u8a2a\u554f\u7684\u540c\u6b65\u5de5\u5177\u3002\u5b83\u5141\u8a31\u591a\u500b\u57f7\u884c\u7dd2\u6216\u9032\u7a0b\u540c\u6642\u8a2a\u554f\u6709\u9650\u7684\u8cc7\u6e90\u3002\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u503c\u8868\u793a\u53ef\u7528\u8cc7\u6e90\u7684\u6578\u91cf\uff0c\u7576\u8cc7\u6e90\u88ab\u4f54\u7528\u6642\uff0c\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u503c\u6703\u6e1b\u5c11\uff1b\u7576\u8cc7\u6e90\u91cb\u653e\u6642\uff0c\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u503c\u6703\u589e\u52a0\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%84%aa%e5%8b%a2-KtpymZdKhT\">Redis\u7684\u512a\u52e2<\/h2>\n<p>Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u5177\u6709\u4ee5\u4e0b\u5e7e\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li>\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u548c\u6aa2\u7d22\u901f\u5ea6<\/li>\n<li>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49<\/li>\n<li>\u539f\u5b50\u64cd\u4f5c\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027<\/li>\n<li>\u652f\u6301\u6301\u4e45\u5316\uff0c\u80fd\u5920\u5728\u91cd\u555f\u5f8c\u6062\u5fa9\u6578\u64da<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e5%af%a6%e7%8f%be%e8%a8%88%e6%95%b8%e4%bf%a1%e8%99%9f%e9%87%8f-KtpymZdKhT\">\u4f7f\u7528Redis\u5be6\u73fe\u8a08\u6578\u4fe1\u865f\u91cf<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u4f86\u5be6\u73fe\u8a08\u6578\u4fe1\u865f\u91cf\u3002\u4ee5\u4e0b\u662f\u5be6\u73fe\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e5%88%9d%e5%a7%8b%e5%8c%96%e8%a8%88%e6%95%b8%e4%bf%a1%e8%99%9f%e9%87%8f-KtpymZdKhT\">1. \u521d\u59cb\u5316\u8a08\u6578\u4fe1\u865f\u91cf<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5728Redis\u4e2d\u8a2d\u7f6e\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u521d\u59cb\u503c\u3002\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u8cc7\u6e90\u6c60\uff0c\u6700\u5927\u53ef\u7528\u8cc7\u6e90\u6578\u91cf\u70ba5\uff1a<\/p>\n<pre><code>SET semaphore 5<\/code><\/pre>\n<h3 id=\"2-%e7%8d%b2%e5%8f%96%e8%b3%87%e6%ba%90-KtpymZdKhT\">2. \u7372\u53d6\u8cc7\u6e90<\/h3>\n<p>\u7576\u4e00\u500b\u9032\u7a0b\u9700\u8981\u8a2a\u554f\u8cc7\u6e90\u6642\uff0c\u5b83\u9700\u8981\u6aa2\u67e5\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u503c\u3002\u5982\u679c\u503c\u5927\u65bc0\uff0c\u5247\u53ef\u4ee5\u7372\u53d6\u8cc7\u6e90\uff0c\u4e26\u5c07\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u503c\u6e1b1\uff1a<\/p>\n<pre><code>\nif (GET semaphore &gt; 0) {\n    DECR semaphore\n    \/\/ \u7372\u53d6\u8cc7\u6e90\n}\n<\/code><\/pre>\n<h3 id=\"3-%e9%87%8b%e6%94%be%e8%b3%87%e6%ba%90-KtpymZdKhT\">3. \u91cb\u653e\u8cc7\u6e90<\/h3>\n<p>\u7576\u9032\u7a0b\u5b8c\u6210\u5c0d\u8cc7\u6e90\u7684\u4f7f\u7528\u5f8c\uff0c\u9700\u8981\u91cb\u653e\u8cc7\u6e90\uff0c\u4e26\u5c07\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u503c\u52a01\uff1a<\/p>\n<pre><code>INCR semaphore<\/code><\/pre>\n<h2 id=\"%e8%99%95%e7%90%86%e7%ab%b6%e7%88%ad%e6%a2%9d%e4%bb%b6-KtpymZdKhT\">\u8655\u7406\u7af6\u722d\u689d\u4ef6<\/h2>\n<p>\u5728\u591a\u500b\u9032\u7a0b\u540c\u6642\u8a2a\u554f\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u7af6\u722d\u689d\u4ef6\u3002\u70ba\u4e86\u907f\u514d\u9019\u7a2e\u60c5\u6cc1\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528Redis\u7684\u539f\u5b50\u64cd\u4f5c\u4f86\u78ba\u4fdd\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u6b63\u78ba\u6027\u3002\u4f7f\u7528Lua\u8173\u672c\u53ef\u4ee5\u9032\u4e00\u6b65\u63d0\u9ad8\u64cd\u4f5c\u7684\u539f\u5b50\u6027\uff1a<\/p>\n<pre><code>\nEVAL \"if redis.call('get', KEYS[1]) &gt; 0 then redis.call('decr', KEYS[1]) return 1 else return 0 end\" 0 semaphore\n<\/code><\/pre>\n<p>\u9019\u6bb5Lua\u8173\u672c\u6703\u6aa2\u67e5\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u503c\uff0c\u4e26\u5728\u503c\u5927\u65bc0\u6642\u6e1b\u5c11\u8a08\u6578\u4fe1\u865f\u91cf\uff0c\u5426\u5247\u8fd4\u56de0\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-KtpymZdKhT\">\u7e3d\u7d50<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9ad8\u6548\u4e14\u7c21\u55ae\u7684\u65b9\u6cd5\u4f86\u5be6\u73fe\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u7ba1\u7406\u3002\u901a\u904e\u4f7f\u7528Redis\u7684\u539f\u5b50\u64cd\u4f5c\u548cLua\u8173\u672c\uff0c\u6211\u5011\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\uff0c\u907f\u514d\u7af6\u722d\u689d\u4ef6\u7684\u767c\u751f\u3002\u9019\u4f7f\u5f97Redis\u6210\u70ba\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u8cc7\u6e90\u7ba1\u7406\u7684\u7406\u60f3\u9078\u64c7\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\u904b\u884c\u60a8\u7684Redis\u670d\u52d9\uff0cServer.HK\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u6027\u80fd\u548c\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5229\u7528Redis\u5be6\u73fe\u8a08\u6578\u4fe1\u865f\u91cf\u7684\u6709\u6548\u7ba1\u7406\uff0c\u63d0\u5347\u8cc7\u6e90\u63a7\u5236\u8207\u4e26\u767c\u6027\u80fd\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\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-128671","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128671","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=128671"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128671\/revisions"}],"predecessor-version":[{"id":128672,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128671\/revisions\/128672"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=128671"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=128671"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=128671"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}