{"id":124885,"date":"2024-10-25T18:00:24","date_gmt":"2024-10-25T10:00:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/124885\/"},"modified":"2024-10-25T18:00:25","modified_gmt":"2024-10-25T10:00:25","slug":"redis-%e6%9e%b6%e6%a7%8b%e4%b8%8b%e7%9a%84%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e5%af%a6%e7%8f%be","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/124885\/","title":{"rendered":"Redis \u67b6\u69cb\u4e0b\u7684\u5206\u5e03\u5f0f\u9396\u5be6\u73fe"},"content":{"rendered":"<h1 id=\"redis-%e6%9e%b6%e6%a7%8b%e4%b8%8b%e7%9a%84%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e5%af%a6%e7%8f%be-VfHWDqnPRL\">Redis \u67b6\u69cb\u4e0b\u7684\u5206\u5e03\u5f0f\u9396\u5be6\u73fe<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u5206\u5e03\u5f0f\u9396\u4f5c\u70ba\u4e00\u7a2e\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u6709\u6548\u5730\u5354\u8abf\u591a\u500b\u9032\u7a0b\u6216\u670d\u52d9\u4e4b\u9593\u7684\u8cc7\u6e90\u8a2a\u554f\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u7c21\u55ae\u800c\u5f37\u5927\u7684\u5206\u5e03\u5f0f\u9396\u5be6\u73fe\u65b9\u5f0f\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u5728 Redis \u67b6\u69cb\u4e0b\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%ef%bc%9f-VfHWDqnPRL\">\u4ec0\u9ebc\u662f\u5206\u5e03\u5f0f\u9396\uff1f<\/h2>\n<p>\u5206\u5e03\u5f0f\u9396\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u591a\u500b\u9032\u7a0b\u6216\u670d\u52d9\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u5728\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u8cc7\u6e90\u53ef\u80fd\u88ab\u591a\u500b\u5be6\u4f8b\u540c\u6642\u8a2a\u554f\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u7af6\u722d\u689d\u4ef6\u3002\u5206\u5e03\u5f0f\u9396\u7684\u4e3b\u8981\u76ee\u7684\u662f\u78ba\u4fdd\u5728\u540c\u4e00\u6642\u9593\u5167\u53ea\u6709\u4e00\u500b\u9032\u7a0b\u80fd\u5920\u8a2a\u554f\u7279\u5b9a\u7684\u8cc7\u6e90\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%84%aa%e5%8b%a2-VfHWDqnPRL\">Redis \u7684\u512a\u52e2<\/h2>\n<p>Redis \u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u5177\u6709\u4ee5\u4e0b\u5e7e\u500b\u512a\u52e2\uff0c\u4f7f\u5176\u6210\u70ba\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u7684\u7406\u60f3\u9078\u64c7\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis \u7684\u64cd\u4f5c\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u80fd\u5920\u5728\u6beb\u79d2\u7d1a\u5225\u5167\u5b8c\u6210\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u3002<\/li>\n<li><strong>\u7c21\u55ae\u6613\u7528\uff1a<\/strong>Redis \u63d0\u4f9b\u4e86\u7c21\u55ae\u7684\u547d\u4ee4\u4f86\u8a2d\u7f6e\u548c\u522a\u9664\u9375\uff0c\u9019\u4f7f\u5f97\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u8b8a\u5f97\u76f8\u5c0d\u7c21\u55ae\u3002<\/li>\n<li><strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff1a<\/strong>Redis \u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9019\u4f7f\u5f97\u5b83\u80fd\u5920\u9748\u6d3b\u5730\u61c9\u5c0d\u4e0d\u540c\u7684\u61c9\u7528\u5834\u666f\u3002<\/li>\n<\/ul>\n<h2 id=\"redis-%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e7%9a%84%e5%af%a6%e7%8f%be-VfHWDqnPRL\">Redis \u5206\u5e03\u5f0f\u9396\u7684\u5be6\u73fe<\/h2>\n<p>\u5728 Redis \u4e2d\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u7684\u57fa\u672c\u601d\u8def\u662f\u4f7f\u7528\u4e00\u500b\u9375\u4f86\u8868\u793a\u9396\u7684\u72c0\u614b\u3002\u7576\u4e00\u500b\u9032\u7a0b\u9700\u8981\u7372\u53d6\u9396\u6642\uff0c\u5b83\u6703\u5617\u8a66\u8a2d\u7f6e\u9019\u500b\u9375\u3002\u5982\u679c\u8a2d\u7f6e\u6210\u529f\uff0c\u5247\u8868\u793a\u7372\u53d6\u9396\u6210\u529f\uff1b\u5982\u679c\u9375\u5df2\u7d93\u5b58\u5728\uff0c\u5247\u8868\u793a\u9396\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u7372\u53d6\u3002<\/p>\n<h3 id=\"%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-VfHWDqnPRL\">\u57fa\u672c\u6b65\u9a5f<\/h3>\n<ol>\n<li>\u5617\u8a66\u8a2d\u7f6e\u9396\u9375\uff0c\u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u4ee5\u9632\u6b62\u6b7b\u9396\u3002<\/li>\n<li>\u5982\u679c\u8a2d\u7f6e\u6210\u529f\uff0c\u5247\u7372\u53d6\u9396\uff1b\u5982\u679c\u5931\u6557\uff0c\u5247\u7b49\u5f85\u4e00\u6bb5\u6642\u9593\u5f8c\u91cd\u8a66\u3002<\/li>\n<li>\u5b8c\u6210\u64cd\u4f5c\u5f8c\uff0c\u91cb\u653e\u9396\uff0c\u5373\u522a\u9664\u9396\u9375\u3002<\/li>\n<\/ol>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-VfHWDqnPRL\">\u793a\u4f8b\u4ee3\u78bc<\/h3>\n<pre><code>import redis\nimport time\n\nclass RedisLock:\n    def __init__(self, redis_client, lock_key, expire=10):\n        self.redis = redis_client\n        self.lock_key = lock_key\n        self.expire = expire\n\n    def acquire(self):\n        while True:\n            if self.redis.set(self.lock_key, \"locked\", nx=True, ex=self.expire):\n                return True\n            time.sleep(0.1)\n\n    def release(self):\n        self.redis.delete(self.lock_key)\n\n# \u4f7f\u7528\u793a\u4f8b\nredis_client = redis.StrictRedis(host='localhost', port=6379, db=0)\nlock = RedisLock(redis_client, \"my_lock\")\n\n# \u7372\u53d6\u9396\nlock.acquire()\ntry:\n    # \u57f7\u884c\u9700\u8981\u9396\u5b9a\u7684\u64cd\u4f5c\n    print(\"\u7372\u53d6\u9396\u6210\u529f\uff0c\u57f7\u884c\u64cd\u4f5c\")\nfinally:\n    # \u91cb\u653e\u9396\n    lock.release()\n    print(\"\u9396\u5df2\u91cb\u653e\")\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-VfHWDqnPRL\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528 Redis \u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\uff1a<\/p>\n<ul>\n<li><strong>\u904e\u671f\u6642\u9593\uff1a<\/strong>\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\uff0c\u4ee5\u9632\u6b62\u56e0\u70ba\u9032\u7a0b\u5d29\u6f70\u800c\u5c0e\u81f4\u7684\u6b7b\u9396\u3002<\/li>\n<li><strong>\u9396\u7684\u552f\u4e00\u6027\uff1a<\/strong>\u78ba\u4fdd\u9396\u7684\u9375\u662f\u552f\u4e00\u7684\uff0c\u4ee5\u907f\u514d\u4e0d\u540c\u9032\u7a0b\u4e4b\u9593\u7684\u5e72\u64fe\u3002<\/li>\n<li><strong>\u91cd\u8a66\u6a5f\u5236\uff1a<\/strong>\u5728\u7372\u53d6\u9396\u5931\u6557\u6642\uff0c\u61c9\u8a2d\u7f6e\u91cd\u8a66\u6a5f\u5236\uff0c\u4ee5\u63d0\u9ad8\u6210\u529f\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-VfHWDqnPRL\">\u7e3d\u7d50<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u4e00\u7a2e\u7c21\u55ae\u800c\u9ad8\u6548\u7684\u65b9\u5f0f\u4f86\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\uff0c\u80fd\u5920\u6709\u6548\u5730\u89e3\u6c7a\u591a\u9032\u7a0b\u6216\u591a\u670d\u52d9\u4e4b\u9593\u7684\u8cc7\u6e90\u7af6\u722d\u554f\u984c\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u7684\u61c9\u7528\u5834\u666f\uff0cRedis \u5206\u5e03\u5f0f\u9396\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u6216\u5176\u4ed6 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u67b6\u69cb\u4e0b\u7684\u5206\u5e03\u5f0f\u9396\u5be6\u73fe\uff0c\u4e86\u89e3\u5176\u539f\u7406\u3001\u512a\u52e2\u53ca\u61c9\u7528\uff0c\u63d0\u5347\u7cfb\u7d71\u7684\u4e26\u767c\u63a7\u5236\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-124885","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/124885","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=124885"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/124885\/revisions"}],"predecessor-version":[{"id":124886,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/124885\/revisions\/124886"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=124885"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=124885"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=124885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}