{"id":98878,"date":"2024-10-21T06:17:15","date_gmt":"2024-10-20T22:17:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/98878\/"},"modified":"2024-10-21T06:17:16","modified_gmt":"2024-10-20T22:17:16","slug":"redis-%e8%a8%82%e9%96%b1%e5%bb%b6%e6%99%82%e7%99%bc%e9%80%81%e5%af%a6%e7%8f%be%e5%ae%9a%e6%99%82%e4%bf%a1%e6%81%af%e6%8e%a8%e9%80%81","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/98878\/","title":{"rendered":"Redis \u8a02\u95b1\u5ef6\u6642\u767c\u9001\u5be6\u73fe\u5b9a\u6642\u4fe1\u606f\u63a8\u9001"},"content":{"rendered":"<h1 id=\"redis-%e8%a8%82%e9%96%b1%e5%bb%b6%e6%99%82%e7%99%bc%e9%80%81%e5%af%a6%e7%8f%be%e5%ae%9a%e6%99%82%e4%bf%a1%e6%81%af%e6%8e%a8%e9%80%81-jUhTXyRgxQ\">Redis \u8a02\u95b1\u5ef6\u6642\u767c\u9001\u5be6\u73fe\u5b9a\u6642\u4fe1\u606f\u63a8\u9001<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u4e2d\uff0c\u4fe1\u606f\u63a8\u9001\u662f\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u5373\u6642\u901a\u77e5\u7528\u6236\u7684\u60c5\u6cc1\u4e0b\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u8a02\u95b1\/\u767c\u5e03\uff08Pub\/Sub\uff09\u529f\u80fd\uff0c\u80fd\u5920\u5be6\u73fe\u5373\u6642\u6d88\u606f\u7684\u63a8\u9001\u3002\u7136\u800c\uff0c\u7576\u9700\u8981\u5be6\u73fe\u5ef6\u6642\u767c\u9001\u6216\u5b9a\u6642\u63a8\u9001\u6642\uff0c\u55ae\u7d14\u4f9d\u8cf4 Redis \u7684 Pub\/Sub \u529f\u80fd\u53ef\u80fd\u7121\u6cd5\u6eff\u8db3\u9700\u6c42\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528 Redis \u5be6\u73fe\u8a02\u95b1\u5ef6\u6642\u767c\u9001\u7684\u5b9a\u6642\u4fe1\u606f\u63a8\u9001\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-jUhTXyRgxQ\">Redis \u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis \u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u5176 Pub\/Sub \u529f\u80fd\u5141\u8a31\u7528\u6236\u8a02\u95b1\u7279\u5b9a\u7684\u983b\u9053\uff0c\u4e26\u5728\u6709\u6d88\u606f\u767c\u4f48\u6642\u5373\u6642\u63a5\u6536\u901a\u77e5\u3002\u9019\u4e00\u7279\u6027\u5728\u5373\u6642\u804a\u5929\u3001\u901a\u77e5\u7cfb\u7d71\u7b49\u5834\u666f\u4e2d\u5f97\u5230\u4e86\u5ee3\u6cdb\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e5%bb%b6%e6%99%82%e7%99%bc%e9%80%81%e7%9a%84%e9%9c%80%e6%b1%82-jUhTXyRgxQ\">\u5ef6\u6642\u767c\u9001\u7684\u9700\u6c42<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u5728\u7279\u5b9a\u6642\u9593\u5f8c\u767c\u9001\u6d88\u606f\u3002\u4f8b\u5982\uff0c\u5b9a\u6642\u63d0\u9192\u7528\u6236\u67d0\u4e9b\u4e8b\u4ef6\u6216\u63a8\u9001\u4fc3\u92b7\u4fe1\u606f\u3002\u9019\u5c31\u9700\u8981\u5728 Redis \u7684\u57fa\u790e\u4e0a\uff0c\u589e\u52a0\u4e00\u5c64\u5ef6\u6642\u8655\u7406\u7684\u908f\u8f2f\u3002<\/p>\n<h2 id=\"%e5%af%a6%e7%8f%be%e6%96%b9%e6%a1%88-jUhTXyRgxQ\">\u5be6\u73fe\u65b9\u6848<\/h2>\n<p>\u8981\u5be6\u73fe Redis \u7684\u8a02\u95b1\u5ef6\u6642\u767c\u9001\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528 Redis \u7684\u5217\u8868\uff08List\uff09\u7d50\u69cb\uff1a<\/strong>\u5c07\u9700\u8981\u5ef6\u6642\u767c\u9001\u7684\u6d88\u606f\u653e\u5165\u4e00\u500b\u5217\u8868\u4e2d\uff0c\u4e26\u8a18\u9304\u6bcf\u689d\u6d88\u606f\u7684\u767c\u9001\u6642\u9593\u3002<\/li>\n<li><strong>\u5b9a\u6642\u6aa2\u67e5\u6d88\u606f\uff1a<\/strong>\u4f7f\u7528\u4e00\u500b\u5b9a\u6642\u4efb\u52d9\uff08\u5982 cron job\uff09\u5b9a\u671f\u6aa2\u67e5\u5217\u8868\u4e2d\u7684\u6d88\u606f\uff0c\u6839\u64da\u7576\u524d\u6642\u9593\u6c7a\u5b9a\u662f\u5426\u767c\u9001\u3002<\/li>\n<li><strong>\u767c\u9001\u6d88\u606f\uff1a<\/strong>\u7576\u9054\u5230\u9810\u5b9a\u7684\u767c\u9001\u6642\u9593\u6642\uff0c\u5c07\u6d88\u606f\u5f9e\u5217\u8868\u4e2d\u53d6\u51fa\uff0c\u4e26\u901a\u904e Redis \u7684 Pub\/Sub \u529f\u80fd\u767c\u9001\u5230\u76f8\u61c9\u7684\u983b\u9053\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-jUhTXyRgxQ\">\u793a\u4f8b\u4ee3\u78bc<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Python \u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 Redis \u5be6\u73fe\u5ef6\u6642\u767c\u9001\uff1a<\/p>\n<pre><code>import redis\nimport time\nfrom datetime import datetime, timedelta\n\n# \u9023\u63a5\u5230 Redis\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\n# \u5c07\u6d88\u606f\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\ndef schedule_message(channel, message, delay):\n    send_time = datetime.now() + timedelta(seconds=delay)\n    r.rpush('scheduled_messages', (send_time.timestamp(), channel, message))\n\n# \u5b9a\u6642\u6aa2\u67e5\u4e26\u767c\u9001\u6d88\u606f\ndef check_and_send_messages():\n    while True:\n        current_time = datetime.now().timestamp()\n        while True:\n            message = r.lpop('scheduled_messages')\n            if message is None:\n                break\n            send_time, channel, msg = eval(message.decode('utf-8'))\n            if send_time &lt;= current_time:\n                r.publish(channel, msg)\n            else:\n                r.rpush(&#039;scheduled_messages&#039;, message)\n                break\n        time.sleep(1)\n\n# \u4f7f\u7528\u793a\u4f8b\nschedule_message(&#039;my_channel&#039;, &#039;Hello, this is a delayed message!&#039;, 10)\ncheck_and_send_messages()\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-jUhTXyRgxQ\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u5be6\u73fe\u5ef6\u6642\u767c\u9001\u6642\uff0c\u9700\u8981\u8003\u616e\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\uff1a<\/strong>\u5b9a\u6642\u6aa2\u67e5\u7684\u983b\u7387\u61c9\u6839\u64da\u5be6\u969b\u9700\u6c42\u8abf\u6574\uff0c\u4ee5\u907f\u514d\u5c0d Redis \u9020\u6210\u904e\u5927\u7684\u8ca0\u64d4\u3002<\/li>\n<li><strong>\u6d88\u606f\u6301\u4e45\u5316\uff1a<\/strong>\u5982\u679c\u61c9\u7528\u9700\u8981\u9ad8\u53ef\u7528\u6027\uff0c\u8003\u616e\u5c07\u6d88\u606f\u6301\u4e45\u5316\u5230\u6578\u64da\u5eab\u4e2d\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li><strong>\u932f\u8aa4\u8655\u7406\uff1a<\/strong>\u5728\u767c\u9001\u6d88\u606f\u6642\uff0c\u61c9\u8003\u616e\u5230\u53ef\u80fd\u7684\u932f\u8aa4\u60c5\u6cc1\uff0c\u4e26\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-jUhTXyRgxQ\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4ee5\u4e0a\u65b9\u6cd5\uff0c\u6211\u5011\u53ef\u4ee5\u5229\u7528 Redis \u5be6\u73fe\u8a02\u95b1\u5ef6\u6642\u767c\u9001\u7684\u5b9a\u6642\u4fe1\u606f\u63a8\u9001\u3002\u9019\u7a2e\u65b9\u5f0f\u4e0d\u50c5\u80fd\u5920\u5145\u5206\u5229\u7528 Redis \u7684\u9ad8\u6027\u80fd\u7279\u6027\uff0c\u9084\u80fd\u5920\u9748\u6d3b\u5730\u6eff\u8db3\u5404\u7a2e\u61c9\u7528\u5834\u666f\u7684\u9700\u6c42\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72\u60a8\u7684\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5229\u7528 Redis \u8a02\u95b1\u529f\u80fd\u5be6\u73fe\u5ef6\u6642\u767c\u9001\uff0c\u8f15\u9b06\u5b9a\u6642\u63a8\u9001\u4fe1\u606f\uff0c\u63d0\u5347\u61c9\u7528\u6548\u7387\u8207\u7528\u6236\u9ad4\u9a57\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-98878","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98878","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=98878"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98878\/revisions"}],"predecessor-version":[{"id":98879,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98878\/revisions\/98879"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=98878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=98878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=98878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}