{"id":99194,"date":"2024-10-21T08:55:16","date_gmt":"2024-10-21T00:55:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/99194\/"},"modified":"2024-10-21T08:55:16","modified_gmt":"2024-10-21T00:55:16","slug":"redis-%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e6%8a%80%e8%a1%93%e9%9d%a2%e8%a9%a6%e5%85%a8%e6%94%bb%e7%95%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/99194\/","title":{"rendered":"Redis \u5206\u5e03\u5f0f\u9396\u6280\u8853\u9762\u8a66\u5168\u653b\u7565"},"content":{"rendered":"<h1 id=\"redis-%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e6%8a%80%e8%a1%93%e9%9d%a2%e8%a9%a6%e5%85%a8%e6%94%bb%e7%95%a5-mykltQSVAe\">Redis \u5206\u5e03\u5f0f\u9396\u6280\u8853\u9762\u8a66\u5168\u653b\u7565<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u9396\u7684\u7ba1\u7406\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u9632\u6b62\u7af6\u722d\u689d\u4ef6\u7684\u91cd\u8981\u624b\u6bb5\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u5206\u5e03\u5f0f\u9396\u7684\u5be6\u73fe\u65b9\u5f0f\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u9762\u8a66\u4e2d\u6210\u70ba\u4e00\u500b\u71b1\u9580\u7684\u8a71\u984c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Redis \u5206\u5e03\u5f0f\u9396\u7684\u539f\u7406\u3001\u5be6\u73fe\u65b9\u5f0f\u53ca\u5176\u5728\u9762\u8a66\u4e2d\u7684\u5e38\u898b\u554f\u984c\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-mykltQSVAe\">\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\u4e4b\u9593\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u5728\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u56e0\u70ba\u591a\u500b\u5be6\u4f8b\u53ef\u80fd\u540c\u6642\u8a2a\u554f\u540c\u4e00\u8cc7\u6e90\uff0c\u9019\u5c31\u9700\u8981\u4e00\u7a2e\u6a5f\u5236\u4f86\u78ba\u4fdd\u540c\u4e00\u6642\u9593\u53ea\u6709\u4e00\u500b\u5be6\u4f8b\u80fd\u5920\u8a2a\u554f\u8a72\u8cc7\u6e90\u3002\u9019\u6a23\u53ef\u4ee5\u9632\u6b62\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u7af6\u722d\u689d\u4ef6\u7684\u767c\u751f\u3002<\/p>\n<h2 id=\"redis-%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e7%9a%84%e5%8e%9f%e7%90%86-mykltQSVAe\">Redis \u5206\u5e03\u5f0f\u9396\u7684\u539f\u7406<\/h2>\n<p>Redis \u5206\u5e03\u5f0f\u9396\u7684\u57fa\u672c\u539f\u7406\u662f\u5229\u7528 Redis \u7684\u539f\u5b50\u64cd\u4f5c\u4f86\u5be6\u73fe\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u3002\u901a\u5e38\uff0c\u5206\u5e03\u5f0f\u9396\u7684\u5be6\u73fe\u904e\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528 <code>SETNX<\/code> \u547d\u4ee4\u4f86\u5617\u8a66\u7372\u53d6\u9396\u3002\u5982\u679c\u9396\u4e0d\u5b58\u5728\uff0c\u5247\u8a2d\u7f6e\u9396\u4e26\u8fd4\u56de\u6210\u529f\uff1b\u5982\u679c\u9396\u5df2\u5b58\u5728\uff0c\u5247\u8fd4\u56de\u5931\u6557\u3002<\/li>\n<li>\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u4ee5\u9632\u6b62\u56e0\u70ba\u67d0\u4e9b\u539f\u56e0\u5c0e\u81f4\u9396\u7121\u6cd5\u91cb\u653e\u7684\u60c5\u6cc1\u3002<\/li>\n<li>\u5728\u5b8c\u6210\u64cd\u4f5c\u5f8c\uff0c\u4f7f\u7528 <code>DEL<\/code> \u547d\u4ee4\u91cb\u653e\u9396\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%e7%a4%ba%e4%be%8b-mykltQSVAe\">Redis \u5206\u5e03\u5f0f\u9396\u7684\u5be6\u73fe\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Redis \u5206\u5e03\u5f0f\u9396\u7684\u5be6\u73fe\u793a\u4f8b\uff1a<\/p>\n<pre><code>import 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)\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%9d%a2%e8%a9%a6%e4%b8%ad%e5%b8%b8%e8%a6%8b%e7%9a%84%e5%95%8f%e9%a1%8c-mykltQSVAe\">\u9762\u8a66\u4e2d\u5e38\u898b\u7684\u554f\u984c<\/h2>\n<p>\u5728\u9762\u8a66\u4e2d\uff0c\u95dc\u65bc Redis \u5206\u5e03\u5f0f\u9396\u7684\u554f\u984c\u53ef\u80fd\u6703\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>Redis \u5206\u5e03\u5f0f\u9396\u7684\u512a\u7f3a\u9ede\u662f\u4ec0\u9ebc\uff1f<\/strong> \u9700\u8981\u8003\u616e\u6027\u80fd\u3001\u53ef\u9760\u6027\u548c\u53ef\u64f4\u5c55\u6027\u7b49\u56e0\u7d20\u3002<\/li>\n<li><strong>\u5982\u4f55\u8655\u7406\u9396\u7684\u904e\u671f\u554f\u984c\uff1f<\/strong> \u9700\u8981\u89e3\u91cb\u5982\u4f55\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\u4ee5\u53ca\u5982\u4f55\u907f\u514d\u6b7b\u9396\u3002<\/li>\n<li><strong>\u5982\u4f55\u5be6\u73fe\u53ef\u91cd\u5165\u9396\uff1f<\/strong> \u9700\u8981\u8a0e\u8ad6\u5982\u4f55\u5728\u540c\u4e00\u500b\u9032\u7a0b\u4e2d\u591a\u6b21\u7372\u53d6\u9396\u800c\u4e0d\u6703\u9020\u6210\u6b7b\u9396\u3002<\/li>\n<li><strong>Redis \u9396\u7684\u5b89\u5168\u6027\u5982\u4f55\u4fdd\u969c\uff1f<\/strong> \u9700\u8981\u8003\u616e\u9396\u7684\u552f\u4e00\u6027\u548c\u9632\u6b62\u5176\u4ed6\u9032\u7a0b\u8aa4\u91cb\u653e\u9396\u7684\u7b56\u7565\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-mykltQSVAe\">\u7e3d\u7d50<\/h2>\n<p>Redis \u5206\u5e03\u5f0f\u9396\u6280\u8853\u5728\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u89d2\u8272\uff0c\u7406\u89e3\u5176\u539f\u7406\u548c\u5be6\u73fe\u65b9\u5f0f\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\u81f3\u95dc\u91cd\u8981\u3002\u5728\u9762\u8a66\u4e2d\uff0c\u80fd\u5920\u6e05\u6670\u5730\u89e3\u91cb Redis \u5206\u5e03\u5f0f\u9396\u7684\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u512a\u7f3a\u9ede\uff0c\u4e26\u80fd\u5920\u63d0\u4f9b\u5be6\u969b\u7684\u4ee3\u78bc\u793a\u4f8b\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u9762\u8a66\u8868\u73fe\u3002\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u53ca\u5176\u61c9\u7528\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1Redis\u5206\u5e03\u5f0f\u9396\u6280\u8853\uff0c\u5168\u9762\u89e3\u6790\u9762\u8a66\u5e38\u898b\u554f\u984c\u8207\u89e3\u7b54\uff0c\u52a9\u4f60\u8f15\u9b06\u61c9\u5c0d\u6280\u8853\u6311\u6230\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-99194","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/99194","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=99194"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/99194\/revisions"}],"predecessor-version":[{"id":99195,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/99194\/revisions\/99195"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=99194"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=99194"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=99194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}