{"id":172387,"date":"2024-11-07T12:42:19","date_gmt":"2024-11-07T04:42:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/172387\/"},"modified":"2024-11-07T12:42:19","modified_gmt":"2024-11-07T04:42:19","slug":"%e4%bb%bb%e5%8b%99%e5%9f%ba%e6%96%bcredis%e6%b6%88%e6%81%af%e9%9a%8a%e5%88%97%e7%9a%84%e5%ae%9a%e6%99%82%e4%bb%bb%e5%8b%99%e7%ae%a1%e7%90%86%ef%bc%88redis%e6%b6%88%e6%81%af%e9%9a%8a%e5%88%97%e5%ae%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/172387\/","title":{"rendered":"\u4efb\u52d9\u57fa\u65bcRedis\u6d88\u606f\u968a\u5217\u7684\u5b9a\u6642\u4efb\u52d9\u7ba1\u7406\uff08redis\u6d88\u606f\u968a\u5217\u5b9a\u6642\uff09"},"content":{"rendered":"

\u4efb\u52d9\u57fa\u65bcRedis\u6d88\u606f\u968a\u5217\u7684\u5b9a\u6642\u4efb\u52d9\u7ba1\u7406\uff08redis\u6d88\u606f\u968a\u5217\u5b9a\u6642\uff09<\/h1>\n

\u5728\u73fe\u4ee3\u7684\u61c9\u7528\u7a0b\u5e8f\u958b\u767c\u4e2d\uff0c\u5b9a\u6642\u4efb\u52d9\u7684\u7ba1\u7406\u662f\u4e00\u500b\u91cd\u8981\u7684\u7d44\u6210\u90e8\u5206\u3002\u96a8\u8457\u5fae\u670d\u52d9\u67b6\u69cb\u7684\u8208\u8d77\uff0c\u4f7f\u7528\u6d88\u606f\u968a\u5217\u4f86\u8655\u7406\u4efb\u52d9\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u666e\u904d\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u4e0d\u50c5\u53ef\u4ee5\u7528\u4f86\u5b58\u5132\u6578\u64da\uff0c\u9084\u53ef\u4ee5\u7528\u4f5c\u6d88\u606f\u968a\u5217\u4f86\u7ba1\u7406\u5b9a\u6642\u4efb\u52d9\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u57fa\u65bcRedis\u6d88\u606f\u968a\u5217\u4f86\u5be6\u73fe\u5b9a\u6642\u4efb\u52d9\u7ba1\u7406\u3002<\/p>\n

Redis\u6d88\u606f\u968a\u5217\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

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\u4f5c\u70ba\u6d88\u606f\u968a\u5217\uff0cRedis\u4e3b\u8981\u4f7f\u7528\u5217\u8868\uff08List\uff09\u548c\u767c\u5e03\/\u8a02\u95b1\uff08Pub\/Sub\uff09\u6a21\u5f0f\u4f86\u5be6\u73fe\u6d88\u606f\u7684\u50b3\u905e\u3002\u9019\u4f7f\u5f97Redis\u5728\u8655\u7406\u9ad8\u4e26\u767c\u7684\u4efb\u52d9\u6642\uff0c\u80fd\u5920\u63d0\u4f9b\u826f\u597d\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n

\u5b9a\u6642\u4efb\u52d9\u7684\u9700\u6c42<\/h2>\n

\u5728\u8a31\u591a\u61c9\u7528\u4e2d\uff0c\u5b9a\u6642\u4efb\u52d9\u7684\u9700\u6c42\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u3002\u4f8b\u5982\uff0c\u5b9a\u671f\u767c\u9001\u96fb\u5b50\u90f5\u4ef6\u3001\u6e05\u7406\u904e\u671f\u6578\u64da\u3001\u751f\u6210\u5831\u544a\u7b49\u3002\u9019\u4e9b\u4efb\u52d9\u901a\u5e38\u9700\u8981\u5728\u7279\u5b9a\u7684\u6642\u9593\u9ede\u6216\u4ee5\u56fa\u5b9a\u7684\u6642\u9593\u9593\u9694\u57f7\u884c\u3002\u50b3\u7d71\u7684\u5b9a\u6642\u4efb\u52d9\u7ba1\u7406\u65b9\u5f0f\uff0c\u5982\u4f7f\u7528cron\u4f5c\u696d\uff0c\u96d6\u7136\u7c21\u55ae\uff0c\u4f46\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u6311\u6230\uff0c\u5982\u4efb\u52d9\u91cd\u8907\u57f7\u884c\u6216\u5931\u6557\u5f8c\u7684\u91cd\u8a66\u6a5f\u5236\u3002<\/p>\n

\u57fa\u65bcRedis\u7684\u5b9a\u6642\u4efb\u52d9\u7ba1\u7406\u65b9\u6848<\/h2>\n

\u4f7f\u7528Redis\u4f86\u7ba1\u7406\u5b9a\u6642\u4efb\u52d9\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\u4f86\u5be6\u73fe\uff1a<\/p>\n

1. \u8a2d\u8a08\u4efb\u52d9\u7d50\u69cb<\/h3>\n

\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u8a2d\u8a08\u4e00\u500b\u4efb\u52d9\u7d50\u69cb\uff0c\u9019\u53ef\u4ee5\u662f\u4e00\u500bJSON\u5c0d\u8c61\uff0c\u5305\u542b\u4efb\u52d9\u7684\u57fa\u672c\u4fe1\u606f\uff0c\u5982\u4efb\u52d9ID\u3001\u57f7\u884c\u6642\u9593\u3001\u4efb\u52d9\u985e\u578b\u7b49\u3002\u4f8b\u5982\uff1a<\/p>\n

{\n  \"task_id\": \"1\",\n  \"execute_time\": \"2023-10-01T10:00:00Z\",\n  \"task_type\": \"send_email\",\n  \"payload\": {\n    \"to\": \"user@example.com\",\n    \"subject\": \"Hello\",\n    \"body\": \"This is a scheduled email.\"\n  }\n}\n<\/code><\/pre>\n
2. \u5c07\u4efb\u52d9\u63a8\u5165Redis\u5217\u8868<\/h3>\n
\u63a5\u4e0b\u4f86\uff0c\u5c07\u4efb\u52d9\u63a8\u5165Redis\u7684\u5217\u8868\u4e2d\u3002\u53ef\u4ee5\u4f7f\u7528Redis\u7684LPUSH\u547d\u4ee4\u5c07\u4efb\u52d9\u6dfb\u52a0\u5230\u5217\u8868\u7684\u5de6\u5074\uff1a<\/p>\n
LPUSH task_queue '{\"task_id\":\"1\",\"execute_time\":\"2023-10-01T10:00:00Z\",\"task_type\":\"send_email\",\"payload\":{\"to\":\"user@example.com\",\"subject\":\"Hello\",\"body\":\"This is a scheduled email.\"}}'<\/code><\/pre>\n
3. \u5b9a\u6642\u6aa2\u67e5\u4efb\u52d9<\/h3>\n
\u7136\u5f8c\uff0c\u6211\u5011\u9700\u8981\u4e00\u500b\u5b9a\u6642\u5668\u4f86\u6aa2\u67e5Redis\u5217\u8868\u4e2d\u7684\u4efb\u52d9\u3002\u53ef\u4ee5\u4f7f\u7528\u4e00\u500b\u7c21\u55ae\u7684\u5faa\u74b0\u4f86\u5b9a\u671f\u6aa2\u67e5\u4efb\u52d9\u7684\u57f7\u884c\u6642\u9593\uff0c\u4e26\u6839\u64da\u7576\u524d\u6642\u9593\u4f86\u6c7a\u5b9a\u662f\u5426\u57f7\u884c\u4efb\u52d9\uff1a<\/p>\n
while True:\n    current_time = datetime.utcnow()\n    task = redis.lpop(\"task_queue\")\n    if task:\n        task_data = json.loads(task)\n        execute_time = datetime.fromisoformat(task_data[\"execute_time\"].replace(\"Z\", \"+00:00\"))\n        if current_time >= execute_time:\n            execute_task(task_data)\n        else:\n            redis.rpush(\"task_queue\", task)  # \u5982\u679c\u672a\u5230\u57f7\u884c\u6642\u9593\uff0c\u91cd\u65b0\u653e\u56de\u968a\u5217\n    time.sleep(60)  # \u6bcf\u5206\u9418\u6aa2\u67e5\u4e00\u6b21\n<\/code><\/pre>\n
4. \u57f7\u884c\u4efb\u52d9<\/h3>\n
\u6700\u5f8c\uff0c\u6839\u64da\u4efb\u52d9\u985e\u578b\u57f7\u884c\u76f8\u61c9\u7684\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u767c\u9001\u96fb\u5b50\u90f5\u4ef6\u7684\u4efb\u52d9\u53ef\u4ee5\u4f7f\u7528SMTP\u5eab\u4f86\u5be6\u73fe\uff1a<\/p>\n
def execute_task(task_data):\n    if task_data[\"task_type\"] == \"send_email\":\n        send_email(task_data[\"payload\"][\"to\"], task_data[\"payload\"][\"subject\"], task_data[\"payload\"][\"body\"])\n<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u57fa\u65bcRedis\u7684\u6d88\u606f\u968a\u5217\u4f86\u7ba1\u7406\u5b9a\u6642\u4efb\u52d9\u662f\u4e00\u7a2e\u9ad8\u6548\u4e14\u9748\u6d3b\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u8a2d\u8a08\u5408\u9069\u7684\u4efb\u52d9\u7d50\u69cb\u3001\u5c07\u4efb\u52d9\u63a8\u5165Redis\u5217\u8868\u3001\u5b9a\u6642\u6aa2\u67e5\u4efb\u52d9\u4ee5\u53ca\u57f7\u884c\u4efb\u52d9\uff0c\u6211\u5011\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u5404\u7a2e\u5b9a\u6642\u4efb\u52d9\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u80fd\u5920\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u64f4\u5c55\u6027\uff0c\u9084\u80fd\u5920\u6e1b\u5c11\u4efb\u52d9\u57f7\u884c\u7684\u91cd\u8907\u6027\u554f\u984c\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684 \u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0c\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u60a8\u7684\u696d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u57fa\u65bcRedis\u6d88\u606f\u968a\u5217\u7684\u5b9a\u6642\u4efb\u52d9\u7ba1\u7406\uff0c\u5be6\u73fe\u9ad8\u6548\u7684\u4efb\u52d9\u8abf\u5ea6\u8207\u57f7\u884c\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u7a69\u5b9a\u6027\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-172387","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172387","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=172387"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172387\/revisions"}],"predecessor-version":[{"id":172388,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172387\/revisions\/172388"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=172387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=172387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=172387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}