{"id":183214,"date":"2024-11-10T02:57:24","date_gmt":"2024-11-09T18:57:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183214\/"},"modified":"2024-11-10T02:57:25","modified_gmt":"2024-11-09T18:57:25","slug":"%e5%af%a6%e7%8f%be%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96redis%e5%bb%ba%e6%a7%8b%e4%b9%8b%e9%81%93%ef%bc%88redis%e6%a7%8b%e9%80%a0%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183214\/","title":{"rendered":"\u5be6\u73fe\u5206\u4f48\u5f0f\u9396Redis\u5efa\u69cb\u4e4b\u9053\uff08redis\u69cb\u9020\u5206\u4f48\u5f0f\u9396\uff09"},"content":{"rendered":"<h1 id=\"%e5%af%a6%e7%8f%be%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96redis%e5%bb%ba%e6%a7%8b%e4%b9%8b%e9%81%93%ef%bc%88redis%e6%a7%8b%e9%80%a0%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%ef%bc%89-wKEtSfKZRj\">\u5be6\u73fe\u5206\u4f48\u5f0f\u9396Redis\u5efa\u69cb\u4e4b\u9053\uff08redis\u69cb\u9020\u5206\u4f48\u5f0f\u9396\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u8cc7\u6e90\u7684\u5171\u4eab\u548c\u5354\u8abf\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7576\u591a\u500b\u9032\u7a0b\u6216\u670d\u52d9\u9700\u8981\u540c\u6642\u8a2a\u554f\u5171\u4eab\u8cc7\u6e90\u6642\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u9019\u4e9b\u8a2a\u554f\u6210\u70ba\u4e86\u4e00\u500b\u6311\u6230\u3002\u5206\u4f48\u5f0f\u9396\u662f\u4e00\u7a2e\u89e3\u6c7a\u65b9\u6848\uff0c\u5b83\u80fd\u5920\u78ba\u4fdd\u5728\u540c\u4e00\u6642\u9593\u5167\u53ea\u6709\u4e00\u500b\u9032\u7a0b\u53ef\u4ee5\u8a2a\u554f\u7279\u5b9a\u7684\u8cc7\u6e90\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u7406\u60f3\u5de5\u5177\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Redis\u69cb\u5efa\u5206\u4f48\u5f0f\u9396\u7684\u5177\u9ad4\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%ef%bc%9f-wKEtSfKZRj\">\u4ec0\u9ebc\u662f\u5206\u4f48\u5f0f\u9396\uff1f<\/h2>\n<p>\u5206\u4f48\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\u8207\u50b3\u7d71\u7684\u9396\u4e0d\u540c\uff0c\u5206\u4f48\u5f0f\u9396\u53ef\u4ee5\u8de8\u591a\u500b\u4f3a\u670d\u5668\u6216\u9032\u7a0b\u9032\u884c\u5354\u8abf\u3002\u9019\u5728\u5fae\u670d\u52d9\u67b6\u69cb\u6216\u96f2\u8a08\u7b97\u74b0\u5883\u4e2d\u5c24\u70ba\u91cd\u8981\uff0c\u56e0\u70ba\u9019\u4e9b\u74b0\u5883\u901a\u5e38\u6d89\u53ca\u591a\u500b\u5be6\u4f8b\u540c\u6642\u904b\u884c\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87redis%ef%bc%9f-wKEtSfKZRj\">\u70ba\u4ec0\u9ebc\u9078\u64c7Redis\uff1f<\/h2>\n<p>Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u56e0\u5176\u5feb\u901f\u7684\u8b80\u5beb\u901f\u5ea6\u548c\u7c21\u55ae\u7684\u6578\u64da\u7d50\u69cb\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u4f7f\u7528Redis\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u9ad8\u6548\u6027\uff1aRedis\u7684\u64cd\u4f5c\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u80fd\u5920\u652f\u6301\u9ad8\u4f75\u767c\u7684\u9396\u8acb\u6c42\u3002<\/li>\n<li>\u7c21\u55ae\u6027\uff1aRedis\u63d0\u4f9b\u4e86\u7c21\u55ae\u7684API\u4f86\u8a2d\u7f6e\u548c\u91cb\u653e\u9396\u3002<\/li>\n<li>\u6301\u4e45\u6027\uff1a\u53ef\u4ee5\u5c07\u9396\u7684\u72c0\u614b\u6301\u4e45\u5316\uff0c\u907f\u514d\u56e0\u7cfb\u7d71\u5d29\u6f70\u800c\u5c0e\u81f4\u7684\u9396\u5931\u6548\u3002<\/li>\n<\/ul>\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-wKEtSfKZRj\">Redis\u5206\u4f48\u5f0f\u9396\u7684\u5be6\u73fe<\/h2>\n<p>\u5be6\u73feRedis\u5206\u4f48\u5f0f\u9396\u7684\u57fa\u672c\u601d\u8def\u662f\u4f7f\u7528Redis\u7684SETNX\u547d\u4ee4\u3002SETNX\u547d\u4ee4\u7684\u5168\u540d\u662f\u201cSET if Not eXists\u201d\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u53ea\u6709\u5728\u9375\u4e0d\u5b58\u5728\u7684\u60c5\u6cc1\u4e0b\u624d\u8a2d\u7f6e\u9375\u7684\u503c\u3002\u9019\u4f7f\u5f97\u6211\u5011\u53ef\u4ee5\u5229\u7528\u5b83\u4f86\u5be6\u73fe\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u3002<\/p>\n<h3 id=\"%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-wKEtSfKZRj\">\u57fa\u672c\u6b65\u9a5f<\/h3>\n<ol>\n<li>\u5617\u8a66\u7372\u53d6\u9396\uff1a\u4f7f\u7528SETNX\u547d\u4ee4\u8a2d\u7f6e\u4e00\u500b\u552f\u4e00\u7684\u9396\u6a19\u8b58\u7b26\u3002<\/li>\n<li>\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff1a\u70ba\u4e86\u9632\u6b62\u6b7b\u9396\uff0c\u61c9\u8a72\u70ba\u9396\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\u3002<\/li>\n<li>\u91cb\u653e\u9396\uff1a\u5728\u5b8c\u6210\u8cc7\u6e90\u8a2a\u554f\u5f8c\uff0c\u522a\u9664\u9396\u7684\u9375\u3002<\/li>\n<\/ol>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-wKEtSfKZRj\">\u793a\u4f8b\u4ee3\u78bc<\/h3>\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.setnx(self.lock_name, \"locked\"):\n                self.redis_client.expire(self.lock_name, self.expire)\n                return True\n            time.sleep(0.1)\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=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-wKEtSfKZRj\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528Redis\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u9396\u7684\u904e\u671f\u6642\u9593\u61c9\u6839\u64da\u5be6\u969b\u696d\u52d9\u9700\u6c42\u9032\u884c\u8a2d\u7f6e\uff0c\u904e\u77ed\u53ef\u80fd\u5c0e\u81f4\u9396\u63d0\u524d\u91cb\u653e\uff0c\u904e\u9577\u5247\u53ef\u80fd\u9020\u6210\u8cc7\u6e90\u7684\u9577\u6642\u9593\u4f54\u7528\u3002<\/li>\n<li>\u5728\u91cb\u653e\u9396\u6642\uff0c\u61c9\u8a72\u78ba\u8a8d\u7576\u524d\u9032\u7a0b\u662f\u5426\u6301\u6709\u8a72\u9396\uff0c\u4ee5\u907f\u514d\u8aa4\u91cb\u653e\u3002<\/li>\n<li>\u8003\u616e\u5230\u7db2\u7d61\u5ef6\u9072\u548cRedis\u7684\u9ad8\u53ef\u7528\u6027\uff0c\u61c9\u8a72\u8a2d\u8a08\u5408\u7406\u7684\u91cd\u8a66\u6a5f\u5236\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-wKEtSfKZRj\">\u7e3d\u7d50<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u4e00\u7a2e\u7c21\u55ae\u800c\u9ad8\u6548\u7684\u65b9\u5f0f\u4f86\u5be6\u73fe\u5206\u4f48\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\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u4f75\u767c\u7684\u61c9\u7528\u5834\u666f\uff0c\u4f7f\u7528Redis\u4f5c\u70ba\u5206\u4f48\u5f0f\u9396\u7684\u89e3\u6c7a\u65b9\u6848\u662f\u975e\u5e38\u503c\u5f97\u8003\u616e\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u4f86\u90e8\u7f72\u60a8\u7684Redis\u5be6\u4f8b\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5229\u7528Redis\u69cb\u5efa\u9ad8\u6548\u7684\u5206\u4f48\u5f0f\u9396\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u6578\u64da\u4e00\u81f4\u6027\u8207\u5b89\u5168\u6027\uff0c\u63d0\u5347\u61c9\u7528\u6027\u80fd\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-183214","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183214","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=183214"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183214\/revisions"}],"predecessor-version":[{"id":183215,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183214\/revisions\/183215"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183214"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183214"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}