{"id":98346,"date":"2024-10-21T01:50:19","date_gmt":"2024-10-20T17:50:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/98346\/"},"modified":"2024-10-21T01:50:19","modified_gmt":"2024-10-20T17:50:19","slug":"redis-%e7%a9%bf%e9%80%8f%e5%be%9e%e4%bb%a3%e7%a2%bc%e5%88%b0%e5%af%a6%e7%8f%be","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/98346\/","title":{"rendered":"Redis \u7a7f\u900f\u5f9e\u4ee3\u78bc\u5230\u5be6\u73fe"},"content":{"rendered":"<h1 id=\"redis-%e7%a9%bf%e9%80%8f%e5%be%9e%e4%bb%a3%e7%a2%bc%e5%88%b0%e5%af%a6%e7%8f%be-MNCRbgzrsr\">Redis \u7a7f\u900f\u5f9e\u4ee3\u78bc\u5230\u5be6\u73fe<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\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\u7136\u800c\uff0c\u96a8\u8457\u61c9\u7528\u7684\u589e\u9577\uff0c\u958b\u767c\u8005\u9762\u81e8\u8457\u4e00\u500b\u6311\u6230\uff1a\u5982\u4f55\u6709\u6548\u5730\u9632\u6b62\u300c\u7a7f\u900f\u300d\u554f\u984c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Redis \u7a7f\u900f\u7684\u6982\u5ff5\u3001\u6210\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-redis-%e7%a9%bf%e9%80%8f%ef%bc%9f-MNCRbgzrsr\">\u4ec0\u9ebc\u662f Redis \u7a7f\u900f\uff1f<\/h2>\n<p>Redis \u7a7f\u900f\u662f\u6307\u7576\u7528\u6236\u8acb\u6c42\u4e00\u500b\u4e0d\u5b58\u5728\u7684\u6578\u64da\u6642\uff0c\u8acb\u6c42\u6703\u76f4\u63a5\u7a7f\u900f\u7de9\u5b58\uff0c\u5c0e\u81f4\u6bcf\u6b21\u8acb\u6c42\u90fd\u67e5\u8a62\u5f8c\u7aef\u6578\u64da\u5eab\u3002\u9019\u6a23\u4e0d\u50c5\u589e\u52a0\u4e86\u6578\u64da\u5eab\u7684\u8ca0\u64d4\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u751a\u81f3\u5f15\u767c\u670d\u52d9\u5668\u5d29\u6f70\u3002<\/p>\n<h2 id=\"%e7%a9%bf%e9%80%8f%e7%9a%84%e6%88%90%e5%9b%a0-MNCRbgzrsr\">\u7a7f\u900f\u7684\u6210\u56e0<\/h2>\n<ul>\n<li><strong>\u7121\u6548\u7684\u8acb\u6c42\uff1a<\/strong>\u7528\u6236\u8acb\u6c42\u7684\u6578\u64da\u5728\u6578\u64da\u5eab\u4e2d\u4e0d\u5b58\u5728\uff0c\u9019\u901a\u5e38\u662f\u7531\u65bc\u7528\u6236\u8f38\u5165\u932f\u8aa4\u6216\u8acb\u6c42\u7684\u6578\u64da\u5df2\u88ab\u522a\u9664\u3002<\/li>\n<li><strong>\u60e1\u610f\u653b\u64ca\uff1a<\/strong>\u653b\u64ca\u8005\u53ef\u80fd\u6703\u6545\u610f\u767c\u9001\u5927\u91cf\u8acb\u6c42\u4ee5\u67e5\u8a62\u4e0d\u5b58\u5728\u7684\u6578\u64da\uff0c\u9019\u6703\u5c0d\u7cfb\u7d71\u9020\u6210\u56b4\u91cd\u5f71\u97ff\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-MNCRbgzrsr\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u5730\u89e3\u6c7a Redis \u7a7f\u900f\u554f\u984c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u7b56\u7565\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e7%a9%ba%e5%80%bc%e7%b7%a9%e5%ad%98-MNCRbgzrsr\">1. \u4f7f\u7528\u7a7a\u503c\u7de9\u5b58<\/h3>\n<p>\u7576\u8acb\u6c42\u7684\u6578\u64da\u4e0d\u5b58\u5728\u6642\uff0c\u53ef\u4ee5\u5c07\u4e00\u500b\u7279\u5b9a\u7684\u7a7a\u503c\uff08\u5982 null \u6216\u8005\u4e00\u500b\u7279\u5b9a\u7684\u6a19\u8a18\uff09\u7de9\u5b58\u8d77\u4f86\uff0c\u4e26\u8a2d\u7f6e\u4e00\u500b\u5408\u7406\u7684\u904e\u671f\u6642\u9593\u3002\u9019\u6a23\uff0c\u5c0d\u65bc\u76f8\u540c\u7684\u8acb\u6c42\uff0c\u7cfb\u7d71\u5c07\u76f4\u63a5\u8fd4\u56de\u7a7a\u503c\uff0c\u800c\u4e0d\u6703\u67e5\u8a62\u6578\u64da\u5eab\u3002<\/p>\n<pre><code>\nfunction getData(key) {\n    \/\/ \u5617\u8a66\u5f9e Redis \u7372\u53d6\u6578\u64da\n    $data = redis_get($key);\n    if ($data === null) {\n        \/\/ \u5982\u679c\u6578\u64da\u4e0d\u5b58\u5728\uff0c\u67e5\u8a62\u6578\u64da\u5eab\n        $data = db_query($key);\n        if ($data === null) {\n            \/\/ \u5c07\u7a7a\u503c\u7de9\u5b58\n            redis_set($key, 'NULL', 3600); \/\/ \u8a2d\u7f6e\u904e\u671f\u6642\u9593\u70ba1\u5c0f\u6642\n            return null;\n        }\n        \/\/ \u5c07\u6578\u64da\u7de9\u5b58\n        redis_set($key, $data);\n    }\n    return $data;\n}\n<\/code><\/pre>\n<h3 id=\"2-%e9%99%90%e6%b5%81%e5%92%8c%e9%98%b2%e7%81%ab%e7%89%86-MNCRbgzrsr\">2. \u9650\u6d41\u548c\u9632\u706b\u7246<\/h3>\n<p>\u5c0d\u65bc\u60e1\u610f\u8acb\u6c42\uff0c\u53ef\u4ee5\u4f7f\u7528\u9650\u6d41\u6280\u8853\u4f86\u9650\u5236\u55ae\u500b\u7528\u6236\u7684\u8acb\u6c42\u983b\u7387\u3002\u6b64\u5916\uff0c\u8a2d\u7f6e\u9632\u706b\u7246\u898f\u5247\u4f86\u904e\u6ffe\u53ef\u7591\u7684\u8acb\u6c42\u4e5f\u662f\u4e00\u7a2e\u6709\u6548\u7684\u9632\u8b77\u63aa\u65bd\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-bloom-filter-MNCRbgzrsr\">3. \u4f7f\u7528 Bloom Filter<\/h3>\n<p>Bloom Filter \u662f\u4e00\u7a2e\u7a7a\u9593\u6548\u7387\u9ad8\u7684\u6982\u7387\u6578\u64da\u7d50\u69cb\uff0c\u53ef\u4ee5\u7528\u4f86\u6aa2\u67e5\u67d0\u500b\u5143\u7d20\u662f\u5426\u5728\u96c6\u5408\u4e2d\u3002\u901a\u904e\u5728\u8acb\u6c42\u4e4b\u524d\u5148\u6aa2\u67e5 Bloom Filter\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u5c0d\u6578\u64da\u5eab\u7684\u67e5\u8a62\u6b21\u6578\u3002<\/p>\n<pre><code>\nfunction checkExistence(key) {\n    if (bloom_filter_check($key)) {\n        return getData($key);\n    } else {\n        return null; \/\/ \u4e0d\u5b58\u5728\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-MNCRbgzrsr\">\u7e3d\u7d50<\/h2>\n<p>Redis \u7a7f\u900f\u554f\u984c\u662f\u7576\u524d\u8a31\u591a\u61c9\u7528\u9762\u81e8\u7684\u4e00\u500b\u6311\u6230\u3002\u901a\u904e\u4f7f\u7528\u7a7a\u503c\u7de9\u5b58\u3001\u9650\u6d41\u6280\u8853\u4ee5\u53ca Bloom Filter \u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u58d3\u529b\uff0c\u63d0\u5347\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u7a7f\u900f\u7684\u6982\u5ff5\uff0c\u5f9e\u4ee3\u78bc\u5be6\u73fe\u5230\u6700\u4f73\u5be6\u8e10\uff0c\u63d0\u5347\u6578\u64da\u5b58\u53d6\u6548\u7387\uff0c\u512a\u5316\u7cfb\u7d71\u6027\u80fd\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-98346","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98346","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=98346"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98346\/revisions"}],"predecessor-version":[{"id":98347,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98346\/revisions\/98347"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=98346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=98346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=98346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}