{"id":134855,"date":"2024-10-31T04:33:21","date_gmt":"2024-10-30T20:33:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/134855\/"},"modified":"2024-10-31T04:33:22","modified_gmt":"2024-10-30T20:33:22","slug":"redis%e8%87%aa%e5%8b%95%e9%81%8e%e6%9c%9f%e7%ba%8c%e6%9c%9f%e5%af%a6%e8%b8%90%ef%bc%88redis%e9%81%8e%e6%9c%9f%e7%ba%8c%e6%9c%9f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/134855\/","title":{"rendered":"Redis\u81ea\u52d5\u904e\u671f\u7e8c\u671f\u5be6\u8e10\uff08redis\u904e\u671f\u7e8c\u671f\uff09"},"content":{"rendered":"<h1 id=\"redis%e8%87%aa%e5%8b%95%e9%81%8e%e6%9c%9f%e7%ba%8c%e6%9c%9f%e5%af%a6%e8%b8%90%ef%bc%88redis%e9%81%8e%e6%9c%9f%e7%ba%8c%e6%9c%9f%ef%bc%89-sTQLbWdtVE\">Redis\u81ea\u52d5\u904e\u671f\u7e8c\u671f\u5be6\u8e10\uff08redis\u904e\u671f\u7e8c\u671f\uff09<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6703\u8a71\u7ba1\u7406\u548c\u6578\u64da\u5b58\u5132\u7b49\u5834\u666f\u3002Redis\u7684\u904e\u671f\u6a5f\u5236\u5141\u8a31\u7528\u6236\u70ba\u9375\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u9019\u5c0d\u65bc\u7ba1\u7406\u81e8\u6642\u6578\u64da\u975e\u5e38\u6709\u7528\u3002\u7136\u800c\uff0c\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u9700\u6c42\u8b8a\u5316\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u9019\u4e9b\u904e\u671f\u9375\uff0c\u7279\u5225\u662f\u81ea\u52d5\u7e8c\u671f\uff0c\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e9%81%8e%e6%9c%9f%e6%a9%9f%e5%88%b6-sTQLbWdtVE\">Redis\u7684\u904e\u671f\u6a5f\u5236<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u5169\u7a2e\u4e3b\u8981\u7684\u904e\u671f\u6a5f\u5236\uff1a\u5b9a\u6642\u904e\u671f\u548c\u60f0\u6027\u904e\u671f\u3002\u5b9a\u6642\u904e\u671f\u662f\u6307\u5728\u8a2d\u7f6e\u9375\u6642\u6307\u5b9a\u4e00\u500b\u904e\u671f\u6642\u9593\uff0cRedis\u6703\u5728\u8a72\u6642\u9593\u5230\u9054\u6642\u81ea\u52d5\u522a\u9664\u8a72\u9375\u3002\u60f0\u6027\u904e\u671f\u5247\u662f\u7576\u7528\u6236\u8a2a\u554f\u67d0\u500b\u9375\u6642\uff0cRedis\u6703\u6aa2\u67e5\u8a72\u9375\u662f\u5426\u904e\u671f\uff0c\u5982\u679c\u904e\u671f\u5247\u522a\u9664\u3002<\/p>\n<h3 id=\"%e9%81%8e%e6%9c%9f%e9%8d%b5%e7%9a%84%e8%87%aa%e5%8b%95%e7%ba%8c%e6%9c%9f-sTQLbWdtVE\">\u904e\u671f\u9375\u7684\u81ea\u52d5\u7e8c\u671f<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u61c9\u7528\u7a0b\u5e8f\u53ef\u80fd\u9700\u8981\u5728\u9375\u5373\u5c07\u904e\u671f\u6642\u81ea\u52d5\u7e8c\u671f\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u5f0f\u5be6\u73fe\uff1a<\/p>\n<ul>\n<li><strong>\u4e3b\u52d5\u7e8c\u671f\uff1a<\/strong>\u5728\u61c9\u7528\u7a0b\u5e8f\u4e2d\u5b9a\u671f\u6aa2\u67e5\u5373\u5c07\u904e\u671f\u7684\u9375\uff0c\u4e26\u5728\u9700\u8981\u6642\u66f4\u65b0\u5176\u904e\u671f\u6642\u9593\u3002<\/li>\n<li><strong>\u88ab\u52d5\u7e8c\u671f\uff1a<\/strong>\u7576\u7528\u6236\u8a2a\u554f\u67d0\u500b\u9375\u6642\uff0c\u6aa2\u67e5\u5176\u904e\u671f\u6642\u9593\uff0c\u5982\u679c\u5373\u5c07\u904e\u671f\u5247\u81ea\u52d5\u7e8c\u671f\u3002<\/li>\n<li><strong>\u4f7f\u7528Lua\u8173\u672c\uff1a<\/strong>\u5229\u7528Redis\u7684Lua\u8173\u672c\u529f\u80fd\uff0c\u53ef\u4ee5\u5728\u55ae\u500b\u539f\u5b50\u64cd\u4f5c\u4e2d\u6aa2\u67e5\u548c\u66f4\u65b0\u9375\u7684\u904e\u671f\u6642\u9593\u3002<\/li>\n<\/ul>\n<h4 id=\"%e4%b8%bb%e5%8b%95%e7%ba%8c%e6%9c%9f%e7%a4%ba%e4%be%8b-sTQLbWdtVE\">\u4e3b\u52d5\u7e8c\u671f\u793a\u4f8b<\/h4>\n<pre><code>\n# Python\u793a\u4f8b\nimport redis\nimport time\n\nr = redis.Redis()\n\ndef renew_key(key, ttl):\n    if r.exists(key):\n        r.expire(key, ttl)\n\nwhile True:\n    renew_key('my_key', 3600)  # \u6bcf\u5c0f\u6642\u7e8c\u671f\u4e00\u6b21\n    time.sleep(3600)  # \u6bcf\u5c0f\u6642\u6aa2\u67e5\u4e00\u6b21\n<\/code><\/pre>\n<h4 id=\"%e8%a2%ab%e5%8b%95%e7%ba%8c%e6%9c%9f%e7%a4%ba%e4%be%8b-sTQLbWdtVE\">\u88ab\u52d5\u7e8c\u671f\u793a\u4f8b<\/h4>\n<pre><code>\n# Python\u793a\u4f8b\nimport redis\n\nr = redis.Redis()\n\ndef get_key(key):\n    if r.exists(key):\n        # \u6aa2\u67e5\u904e\u671f\u6642\u9593\n        ttl = r.ttl(key)\n        if ttl &lt; 60:  # \u5982\u679c\u5269\u9918\u6642\u9593\u5c11\u65bc60\u79d2\n            r.expire(key, 3600)  # \u7e8c\u671f1\u5c0f\u6642\n        return r.get(key)\n    return None\n<\/code><\/pre>\n<h4 id=\"%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac%e7%a4%ba%e4%be%8b-sTQLbWdtVE\">\u4f7f\u7528Lua\u8173\u672c\u793a\u4f8b<\/h4>\n<pre><code>\n# Lua\u8173\u672c\u793a\u4f8b\nlocal key = KEYS[1]\nlocal ttl = tonumber(ARGV[1])\n\nif redis.call('EXISTS', key) == 1 then\n    local current_ttl = redis.call('TTL', key)\n    if current_ttl &lt; ttl then\n        redis.call(&#039;EXPIRE&#039;, key, ttl)\n    end\nend\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-sTQLbWdtVE\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u5be6\u65bd\u81ea\u52d5\u7e8c\u671f\u6642\uff0c\u9700\u8981\u8003\u616e\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u6027\u80fd\u5f71\u97ff\uff1a\u983b\u7e41\u7684\u6aa2\u67e5\u548c\u7e8c\u671f\u64cd\u4f5c\u53ef\u80fd\u6703\u5f71\u97ffRedis\u7684\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<li>\u6578\u64da\u4e00\u81f4\u6027\uff1a\u78ba\u4fdd\u5728\u7e8c\u671f\u904e\u7a0b\u4e2d\u4e0d\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u3002<\/li>\n<li>\u904e\u671f\u7b56\u7565\uff1a\u6839\u64da\u696d\u52d9\u9700\u6c42\u5408\u7406\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u548c\u7e8c\u671f\u7b56\u7565\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8cc7\u6e90\u6d6a\u8cbb\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-sTQLbWdtVE\">\u7e3d\u7d50<\/h2>\n<p>Redis\u7684\u81ea\u52d5\u904e\u671f\u7e8c\u671f\u6a5f\u5236\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u6578\u64da\u7ba1\u7406\u65b9\u5f0f\u3002\u901a\u904e\u4e3b\u52d5\u3001\u88ab\u52d5\u548cLua\u8173\u672c\u7b49\u591a\u7a2e\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u904e\u671f\u9375\uff0c\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u5132\u548c\u7ba1\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u7121\u8ad6\u662f\u4f7f\u7528 <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\u90fd\u80fd\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u81ea\u52d5\u904e\u671f\u7e8c\u671f\u7684\u5be6\u8e10\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u78ba\u4fdd\u95dc\u9375\u6578\u64da\u6301\u4e45\u6027\u8207\u6027\u80fd\u512a\u5316\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-134855","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/134855","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=134855"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/134855\/revisions"}],"predecessor-version":[{"id":134856,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/134855\/revisions\/134856"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=134855"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=134855"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=134855"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}