{"id":159933,"date":"2024-11-03T18:52:26","date_gmt":"2024-11-03T10:52:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/159933\/"},"modified":"2024-11-03T18:52:27","modified_gmt":"2024-11-03T10:52:27","slug":"%e7%ba%a2%e7%83%9b%e5%85%89%e9%97%aa-redis-%e9%ab%98%e6%95%88%e9%81%8e%e6%9c%9f%e7%ae%a1%e7%90%86%e5%af%a6%e6%88%b0%e7%b3%bb%e5%88%97%e5%a4%9a%e7%b7%9a%e7%a8%8b%e6%a8%a1%e5%bc%8f%ef%bc%88redis","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/159933\/","title":{"rendered":"\u7ea2\u70db\u5149\u95ea Redis \u9ad8\u6548\u904e\u671f\u7ba1\u7406\u5be6\u6230\u7cfb\u5217\u591a\u7dda\u7a0b\u6a21\u5f0f\uff08redis \u904e\u671f \u591a\u7dda\u7a0b\uff09"},"content":{"rendered":"<h1 id=\"%e7%ba%a2%e7%83%9b%e5%85%89%e9%97%aa-redis-%e9%ab%98%e6%95%88%e8%bf%87%e6%9c%9f%e7%ae%a1%e7%90%86%e5%ae%9e%e6%88%98%e7%b3%bb%e5%88%97%e5%a4%9a%e7%ba%bf%e7%a8%8b%e6%a8%a1%e5%bc%8f%ef%bc%88redis-EozyRVjeMB\">\u7ea2\u70db\u5149\u95ea Redis \u9ad8\u6548\u8fc7\u671f\u7ba1\u7406\u5b9e\u6218\u7cfb\u5217\u591a\u7ebf\u7a0b\u6a21\u5f0f\uff08Redis \u8fc7\u671f \u591a\u7ebf\u7a0b\uff09<\/h1>\n<p>\u5728\u73b0\u4ee3\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u7f13\u5b58\u6280\u672f\u7684\u4f7f\u7528\u53d8\u5f97\u8d8a\u6765\u8d8a\u666e\u904d\uff0cRedis \u4f5c\u4e3a\u4e00\u79cd\u9ad8\u6027\u80fd\u7684\u952e\u503c\u5b58\u50a8\u7cfb\u7edf\uff0c\u56e0\u5176\u9ad8\u6548\u7684\u8bfb\u5199\u6027\u80fd\u548c\u4e30\u5bcc\u7684\u6570\u636e\u7ed3\u6784\u800c\u53d7\u5230\u5e7f\u6cdb\u6b22\u8fce\u3002\u5c24\u5176\u662f\u5728\u5904\u7406\u6570\u636e\u8fc7\u671f\u7ba1\u7406\u65f6\uff0cRedis \u63d0\u4f9b\u4e86\u591a\u79cd\u673a\u5236\u6765\u786e\u4fdd\u6570\u636e\u7684\u6709\u6548\u6027\u548c\u53ca\u65f6\u6027\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u5982\u4f55\u5728 Redis \u4e2d\u5b9e\u73b0\u9ad8\u6548\u7684\u8fc7\u671f\u7ba1\u7406\uff0c\u7279\u522b\u662f\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e0b\u7684\u5e94\u7528\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e8%bf%87%e6%9c%9f%e7%ae%a1%e7%90%86%e6%9c%ba%e5%88%b6-EozyRVjeMB\">Redis \u7684\u8fc7\u671f\u7ba1\u7406\u673a\u5236<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u4e24\u79cd\u4e3b\u8981\u7684\u8fc7\u671f\u7ba1\u7406\u673a\u5236\uff1a\u5b9a\u65f6\u8fc7\u671f\u548c\u60f0\u6027\u8fc7\u671f\u3002\u5b9a\u65f6\u8fc7\u671f\u662f\u6307\u5728\u8bbe\u7f6e\u952e\u503c\u5bf9\u65f6\uff0c\u53ef\u4ee5\u6307\u5b9a\u4e00\u4e2a\u8fc7\u671f\u65f6\u95f4\uff0cRedis \u4f1a\u5728\u8be5\u65f6\u95f4\u5230\u8fbe\u65f6\u81ea\u52a8\u5220\u9664\u8be5\u952e\u3002\u800c\u60f0\u6027\u8fc7\u671f\u5219\u662f\u5728\u6bcf\u6b21\u8bbf\u95ee\u952e\u65f6\uff0cRedis \u4f1a\u68c0\u67e5\u8be5\u952e\u662f\u5426\u5df2\u8fc7\u671f\uff0c\u5982\u679c\u8fc7\u671f\u5219\u5220\u9664\u3002<\/p>\n<h3 id=\"%e5%ae%9a%e6%97%b6%e8%bf%87%e6%9c%9f-EozyRVjeMB\">\u5b9a\u65f6\u8fc7\u671f<\/h3>\n<p>\u5b9a\u65f6\u8fc7\u671f\u7684\u8bbe\u7f6e\u975e\u5e38\u7b80\u5355\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>EXPIRE<\/code> \u547d\u4ee4\u6765\u8bbe\u7f6e\u952e\u7684\u8fc7\u671f\u65f6\u95f4\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SET mykey \"Hello\"\nEXPIRE mykey 10  # 10\u79d2\u540e\u8fc7\u671f\n<\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u952e <code>mykey<\/code> \u4f1a\u5728 10 \u79d2\u540e\u81ea\u52a8\u88ab\u5220\u9664\u3002<\/p>\n<h3 id=\"%e6%83%b0%e6%80%a7%e8%bf%87%e6%9c%9f-EozyRVjeMB\">\u60f0\u6027\u8fc7\u671f<\/h3>\n<p>\u60f0\u6027\u8fc7\u671f\u7684\u673a\u5236\u5219\u662f\u901a\u8fc7\u8bbf\u95ee\u952e\u6765\u89e6\u53d1\u8fc7\u671f\u68c0\u67e5\uff0c\u8fd9\u610f\u5473\u7740\u53ea\u6709\u5728\u8bbf\u95ee\u8be5\u952e\u65f6\uff0cRedis \u624d\u4f1a\u5224\u65ad\u5176\u662f\u5426\u8fc7\u671f\u3002\u8fd9\u79cd\u65b9\u5f0f\u5728\u8bbf\u95ee\u9891\u7387\u8f83\u4f4e\u7684\u60c5\u51b5\u4e0b\u975e\u5e38\u6709\u6548\uff0c\u4f46\u5728\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6027\u80fd\u95ee\u9898\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e7%ba%bf%e7%a8%8b%e7%8e%af%e5%a2%83%e4%b8%8b%e7%9a%84%e8%bf%87%e6%9c%9f%e7%ae%a1%e7%90%86-EozyRVjeMB\">\u591a\u7ebf\u7a0b\u73af\u5883\u4e0b\u7684\u8fc7\u671f\u7ba1\u7406<\/h2>\n<p>\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\uff0c\u5982\u4f55\u9ad8\u6548\u5730\u7ba1\u7406 Redis \u7684\u8fc7\u671f\u6570\u636e\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u8bfe\u9898\u3002\u7531\u4e8e Redis \u672c\u8eab\u662f\u5355\u7ebf\u7a0b\u7684\uff0c\u56e0\u6b64\u5728\u9ad8\u5e76\u53d1\u7684\u60c5\u51b5\u4e0b\uff0c\u8fc7\u671f\u6570\u636e\u7684\u5904\u7406\u53ef\u80fd\u4f1a\u6210\u4e3a\u6027\u80fd\u74f6\u9888\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u51e0\u79cd\u7b56\u7565\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-lua-%e8%84%9a%e6%9c%ac-EozyRVjeMB\">1. \u4f7f\u7528 Lua \u811a\u672c<\/h3>\n<p>Lua \u811a\u672c\u53ef\u4ee5\u5728 Redis \u670d\u52a1\u5668\u7aef\u6267\u884c\uff0c\u907f\u514d\u4e86\u591a\u6b21\u7f51\u7edc\u5f80\u8fd4\u7684\u5ef6\u8fdf\u3002\u901a\u8fc7\u5c06\u8fc7\u671f\u68c0\u67e5\u548c\u6570\u636e\u5904\u7406\u903b\u8f91\u653e\u5728\u540c\u4e00\u4e2a Lua \u811a\u672c\u4e2d\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>local key = KEYS[1]\nlocal value = redis.call(\"GET\", key)\nif value then\n    redis.call(\"EXPIRE\", key, 10)  -- \u91cd\u65b0\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\nend\nreturn value\n<\/code><\/pre>\n<h3 id=\"2-%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86%e8%bf%87%e6%9c%9f%e6%95%b0%e6%8d%ae-EozyRVjeMB\">2. \u5b9a\u671f\u6e05\u7406\u8fc7\u671f\u6570\u636e<\/h3>\n<p>\u9664\u4e86\u4f9d\u8d56 Redis \u7684\u5185\u7f6e\u673a\u5236\u5916\uff0c\u8fd8\u53ef\u4ee5\u5b9a\u671f\u8fd0\u884c\u4e00\u4e2a\u540e\u53f0\u4efb\u52a1\uff0c\u4e3b\u52a8\u6e05\u7406\u8fc7\u671f\u6570\u636e\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u4e00\u4e2a\u5b9a\u65f6\u4efb\u52a1\u6765\u5b9e\u73b0\uff0c\u4f8b\u5982\u4f7f\u7528 <code>CRON<\/code> \u4f5c\u4e1a\u5b9a\u671f\u8c03\u7528 Redis \u7684 <code>SCAN<\/code> \u547d\u4ee4\u6765\u67e5\u627e\u5e76\u5220\u9664\u8fc7\u671f\u7684\u952e\u3002<\/p>\n<pre><code>while true do\n    local cursor = \"0\"\n    repeat\n        local result = redis.call(\"SCAN\", cursor)\n        cursor = result[1]\n        for _, key in ipairs(result[2]) do\n            redis.call(\"DEL\", key)  -- \u5220\u9664\u8fc7\u671f\u952e\n        end\n    until cursor == \"0\"\n    sleep(60)  -- \u6bcf60\u79d2\u6267\u884c\u4e00\u6b21\nend\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-redis-%e9%9b%86%e7%be%a4-EozyRVjeMB\">3. \u4f7f\u7528 Redis \u96c6\u7fa4<\/h3>\n<p>\u5728\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\uff0c\u4f7f\u7528 Redis \u96c6\u7fa4\u53ef\u4ee5\u6709\u6548\u5206\u6563\u8d1f\u8f7d\u3002\u901a\u8fc7\u5c06\u6570\u636e\u5206\u7247\u5b58\u50a8\u5728\u4e0d\u540c\u7684\u8282\u70b9\u4e0a\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6574\u4f53\u7684\u5904\u7406\u80fd\u529b\u548c\u54cd\u5e94\u901f\u5ea6\u3002\u5728\u96c6\u7fa4\u6a21\u5f0f\u4e0b\uff0c\u8fc7\u671f\u7ba1\u7406\u4f9d\u7136\u53ef\u4ee5\u901a\u8fc7\u4e0a\u8ff0\u65b9\u6cd5\u8fdb\u884c\u4f18\u5316\u3002<\/p>\n<h2 id=\"%e6%80%bb%e7%bb%93-EozyRVjeMB\">\u603b\u7ed3<\/h2>\n<p>\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\uff0cRedis \u7684\u8fc7\u671f\u7ba1\u7406\u9700\u8981\u7ed3\u5408\u591a\u79cd\u7b56\u7565\u6765\u5b9e\u73b0\u9ad8\u6548\u7684\u6570\u636e\u5904\u7406\u3002\u901a\u8fc7\u4f7f\u7528 Lua \u811a\u672c\u3001\u5b9a\u671f\u6e05\u7406\u548c Redis \u96c6\u7fa4\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u5347\u8fc7\u671f\u6570\u636e\u7684\u7ba1\u7406\u6548\u7387\u3002\u5bf9\u4e8e\u9700\u8981\u9ad8\u6027\u80fd\u548c\u9ad8\u53ef\u7528\u6027\u7684\u5e94\u7528\uff0c\u9009\u62e9\u5408\u9002\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u51b3\u65b9\u6848\u5c06\u662f\u4e00\u4e2a\u660e\u667a\u7684\u9009\u62e9\u3002\u4e86\u89e3\u66f4\u591a\u5173\u4e8e <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u670d\u52a1\u5668<\/a> \u7684\u4fe1\u606f\uff0c\u6b22\u8fce\u8bbf\u95ee\u6211\u4eec\u7684\u5b98\u65b9\u7f51\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u7ea2\u70db\u5149\u95ea\u7684Redis\u9ad8\u6548\u8fc7\u671f\u7ba1\u7406\u5b9e\u6218\u7cfb\u5217\uff0c\u6df1\u5165\u591a\u7ebf\u7a0b\u6a21\u5f0f\uff0c\u63d0\u5347Redis\u8fc7\u671f\u5904\u7406\u6548\u7387\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-159933","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159933","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=159933"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159933\/revisions"}],"predecessor-version":[{"id":159934,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159933\/revisions\/159934"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=159933"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=159933"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=159933"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}