{"id":183220,"date":"2024-11-10T03:00:22","date_gmt":"2024-11-09T19:00:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183220\/"},"modified":"2024-11-10T03:00:24","modified_gmt":"2024-11-09T19:00:24","slug":"%e5%af%a6%e7%8f%be%e9%ab%98%e4%b8%a6%e7%99%bc%e7%92%b0%e5%a2%83%e4%b8%8b%e7%9a%84redis%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%ef%bc%88%e9%ab%98%e4%b8%a6%e7%99%bcredis%e5%88%86%e4%bd%88%e9%8e%96%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183220\/","title":{"rendered":"\u5be6\u73fe\u9ad8\u4e26\u767c\u74b0\u5883\u4e0b\u7684Redis\u5206\u4f48\u5f0f\u9396\uff08\u9ad8\u4e26\u767credis\u5206\u4f48\u9396\uff09"},"content":{"rendered":"<h1 id=\"%e5%af%a6%e7%8f%be%e9%ab%98%e4%b8%a6%e7%99%bc%e7%92%b0%e5%a2%83%e4%b8%8b%e7%9a%84redis%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%ef%bc%88%e9%ab%98%e4%b8%a6%e7%99%bcredis%e5%88%86%e4%bd%88%e9%8e%96%ef%bc%89-HWPoRFEMKX\">\u5be6\u73fe\u9ad8\u4e26\u767c\u74b0\u5883\u4e0b\u7684Redis\u5206\u4f48\u5f0f\u9396\uff08\u9ad8\u4e26\u767credis\u5206\u4f48\u9396\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u96a8\u8457\u7528\u6236\u6578\u91cf\u7684\u589e\u52a0\u548c\u8acb\u6c42\u7684\u983b\u7e41\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u8cc7\u6e90\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u6311\u6230\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5e38\u88ab\u7528\u4f86\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\uff0c\u4ee5\u78ba\u4fdd\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e0b\u7684\u6578\u64da\u4e00\u81f4\u6027\u548c\u8cc7\u6e90\u7684\u5b89\u5168\u8a2a\u554f\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\u5be6\u73feRedis\u5206\u4f48\u5f0f\u9396\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%ef%bc%9f-HWPoRFEMKX\">\u4ec0\u9ebc\u662fRedis\u5206\u4f48\u5f0f\u9396\uff1f<\/h2>\n<p>Redis\u5206\u4f48\u5f0f\u9396\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u591a\u500b\u9032\u7a0b\u6216\u670d\u52d9\u5668\u4e4b\u9593\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u5b83\u7684\u4e3b\u8981\u76ee\u7684\u662f\u9632\u6b62\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u6027\u3002\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\uff0c\u7576\u591a\u500b\u8acb\u6c42\u540c\u6642\u5617\u8a66\u8a2a\u554f\u540c\u4e00\u8cc7\u6e90\u6642\uff0c\u5206\u4f48\u5f0f\u9396\u53ef\u4ee5\u78ba\u4fdd\u53ea\u6709\u4e00\u500b\u8acb\u6c42\u80fd\u5920\u6210\u529f\u7372\u5f97\u9396\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u640d\u58de\u3002<\/p>\n<h2 id=\"redis%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%e7%9a%84%e5%af%a6%e7%8f%be%e5%8e%9f%e7%90%86-HWPoRFEMKX\">Redis\u5206\u4f48\u5f0f\u9396\u7684\u5be6\u73fe\u539f\u7406<\/h2>\n<p>Redis\u5206\u4f48\u5f0f\u9396\u7684\u57fa\u672c\u539f\u7406\u662f\u5229\u7528Redis\u7684\u539f\u5b50\u64cd\u4f5c\u4f86\u5be6\u73fe\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u3002\u901a\u5e38\uff0c\u4f7f\u7528SETNX\u547d\u4ee4\u4f86\u8a2d\u7f6e\u9396\uff0c\u4e26\u4f7f\u7528EXPIRE\u547d\u4ee4\u4f86\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\u3002\u9019\u6a23\u53ef\u4ee5\u9632\u6b62\u56e0\u70ba\u67d0\u4e9b\u539f\u56e0\u5c0e\u81f4\u9396\u7121\u6cd5\u91cb\u653e\u7684\u60c5\u6cc1\u3002<\/p>\n<h3 id=\"%e5%9f%ba%e6%9c%ac%e7%9a%84%e9%8e%96%e7%8d%b2%e5%8f%96%e6%b5%81%e7%a8%8b-HWPoRFEMKX\">\u57fa\u672c\u7684\u9396\u7372\u53d6\u6d41\u7a0b<\/h3>\n<pre><code>\n1. \u4f7f\u7528SETNX\u547d\u4ee4\u5617\u8a66\u7372\u53d6\u9396\u3002\n2. \u5982\u679c\u7372\u53d6\u6210\u529f\uff0c\u5247\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\u3002\n3. \u5982\u679c\u7372\u53d6\u5931\u6557\uff0c\u5247\u6839\u64da\u9700\u8981\u9032\u884c\u91cd\u8a66\u6216\u8fd4\u56de\u932f\u8aa4\u3002\n<\/code><\/pre>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-HWPoRFEMKX\">\u793a\u4f8b\u4ee3\u78bc<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Python\u548cRedis\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u7c21\u55ae\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nimport redis\nimport time\n\nclass RedisLock:\n    def __init__(self, redis_client, lock_name, expire=10):\n        self.redis_client = redis_client\n        self.lock_name = lock_name\n        self.expire = expire\n\n    def acquire(self):\n        while True:\n            if self.redis_client.set(self.lock_name, \"locked\", nx=True, ex=self.expire):\n                return True\n            time.sleep(0.1)  # \u7b49\u5f85\u4e00\u6bb5\u6642\u9593\u5f8c\u91cd\u8a66\n\n    def release(self):\n        self.redis_client.delete(self.lock_name)\n\n# \u4f7f\u7528\u793a\u4f8b\nredis_client = redis.StrictRedis(host='localhost', port=6379, db=0)\nlock = RedisLock(redis_client, \"my_lock\")\n\nif lock.acquire():\n    try:\n        # \u57f7\u884c\u9700\u8981\u9396\u5b9a\u7684\u64cd\u4f5c\n        print(\"\u7372\u53d6\u9396\u6210\u529f\uff0c\u57f7\u884c\u64cd\u4f5c\")\n    finally:\n        lock.release()\n        print(\"\u91cb\u653e\u9396\")\n<\/code><\/pre>\n<h2 id=\"%e9%ab%98%e4%b8%a6%e7%99%bc%e7%92%b0%e5%a2%83%e4%b8%8b%e7%9a%84%e6%8c%91%e6%88%b0-HWPoRFEMKX\">\u9ad8\u4e26\u767c\u74b0\u5883\u4e0b\u7684\u6311\u6230<\/h2>\n<p>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\uff0c\u5be6\u73feRedis\u5206\u4f48\u5f0f\u9396\u9762\u81e8\u4e00\u4e9b\u6311\u6230\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u9396\u7684\u904e\u671f\u554f\u984c\uff1a<\/strong>\u5982\u679c\u6301\u6709\u9396\u7684\u9032\u7a0b\u5d29\u6f70\uff0c\u9396\u53ef\u80fd\u7121\u6cd5\u91cb\u653e\uff0c\u5c0e\u81f4\u5176\u4ed6\u9032\u7a0b\u7121\u6cd5\u7372\u53d6\u9396\u3002\u9019\u53ef\u4ee5\u901a\u904e\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\u4f86\u7de9\u89e3\u3002<\/li>\n<li><strong>\u9396\u7684\u91cd\u5165\u554f\u984c\uff1a<\/strong>\u5982\u679c\u540c\u4e00\u9032\u7a0b\u9700\u8981\u591a\u6b21\u7372\u53d6\u9396\uff0c\u5247\u9700\u8981\u8003\u616e\u5982\u4f55\u5be6\u73fe\u9396\u7684\u91cd\u5165\u6a5f\u5236\u3002<\/li>\n<li><strong>\u6027\u80fd\u554f\u984c\uff1a<\/strong>\u5728\u9ad8\u4e26\u767c\u60c5\u6cc1\u4e0b\uff0c\u983b\u7e41\u7684\u9396\u8acb\u6c42\u53ef\u80fd\u6703\u5f71\u97ff\u7cfb\u7d71\u6027\u80fd\uff0c\u56e0\u6b64\u9700\u8981\u5408\u7406\u8a2d\u8a08\u9396\u7684\u4f7f\u7528\u7b56\u7565\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-HWPoRFEMKX\">\u7d50\u8ad6<\/h2>\n<p>Redis\u5206\u4f48\u5f0f\u9396\u662f\u4e00\u7a2e\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\u7ba1\u7406\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u6027\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u9396\u5be6\u73fe\u65b9\u5f0f\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u61c9\u5c0d\u9ad8\u4e26\u767c\u6311\u6230\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\u5be6\u73feRedis\u5206\u4f48\u5f0f\u9396\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u7a69\u5b9a\u6027\uff0c\u78ba\u4fdd\u8cc7\u6e90\u5b89\u5168\u7ba1\u7406\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-183220","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183220","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=183220"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183220\/revisions"}],"predecessor-version":[{"id":183221,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183220\/revisions\/183221"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}