{"id":167641,"date":"2024-11-06T03:18:23","date_gmt":"2024-11-05T19:18:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/167641\/"},"modified":"2024-11-06T03:18:24","modified_gmt":"2024-11-05T19:18:24","slug":"%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%e7%9a%84%e6%8a%80%e8%a1%93%e5%af%a6%e7%8f%be%ef%bc%88redis%e9%8e%96%e5%88%86%e4%bd%88%e5%bc%8f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/167641\/","title":{"rendered":"\u5229\u7528Redis\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u6280\u8853\u5be6\u73fe\uff08redis\u9396\u5206\u4f48\u5f0f\uff09"},"content":{"rendered":"<h1 id=\"%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%e7%9a%84%e6%8a%80%e8%a1%93%e5%af%a6%e7%8f%be%ef%bc%88redis%e9%8e%96%e5%88%86%e4%bd%88%e5%bc%8f%ef%bc%89-UZFhVbRRcv\">\u5229\u7528Redis\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u6280\u8853\u5be6\u73fe\uff08redis\u9396\u5206\u4f48\u5f0f\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\u5229\u7528Redis\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u6280\u8853\u7d30\u7bc0\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-UZFhVbRRcv\">\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\u5be6\u4f8b\u9032\u884c\u7ba1\u7406\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u5fae\u670d\u52d9\u67b6\u69cb\u548c\u96f2\u8a08\u7b97\u74b0\u5883\u4e2d\u5c24\u70ba\u91cd\u8981\u3002\u5206\u4f48\u5f0f\u9396\u7684\u4e3b\u8981\u76ee\u7684\u662f\u9632\u6b62\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u6027\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%84%aa%e5%8b%a2-UZFhVbRRcv\">Redis\u7684\u512a\u52e2<\/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><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\u7684API\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5be6\u73fe\u9396\u7684\u529f\u80fd\u3002<\/li>\n<li><strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff1a<\/strong>Redis\u652f\u6301\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9748\u6d3b\u6027\u9ad8\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-UZFhVbRRcv\">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\u6703\u8a2d\u7f6e\u9375\u7684\u503c\u3002\u9019\u4f7f\u5f97\u6211\u5011\u53ef\u4ee5\u5229\u7528\u5b83\u4f86\u5be6\u73fe\u9396\u7684\u7372\u53d6\u3002<\/p>\n<h3 id=\"%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-UZFhVbRRcv\">\u57fa\u672c\u6b65\u9a5f<\/h3>\n<ol>\n<li>\u5617\u8a66\u7372\u53d6\u9396\uff1a\u4f7f\u7528SETNX\u547d\u4ee4\u8a2d\u7f6e\u4e00\u500b\u9396\u7684\u9375\uff0c\u4e26\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\u4ee5\u9632\u6b62\u6b7b\u9396\u3002<\/li>\n<li>\u57f7\u884c\u696d\u52d9\u908f\u8f2f\uff1a\u5982\u679c\u6210\u529f\u7372\u53d6\u9396\uff0c\u5247\u57f7\u884c\u9700\u8981\u4fdd\u8b77\u7684\u696d\u52d9\u908f\u8f2f\u3002<\/li>\n<li>\u91cb\u653e\u9396\uff1a\u696d\u52d9\u908f\u8f2f\u57f7\u884c\u5b8c\u7562\u5f8c\uff0c\u522a\u9664\u9396\u7684\u9375\u4ee5\u91cb\u653e\u9396\u3002<\/li>\n<\/ol>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-UZFhVbRRcv\">\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\u696d\u52d9\u908f\u8f2f\n        print(\"\u7372\u53d6\u9396\u6210\u529f\uff0c\u57f7\u884c\u696d\u52d9\u908f\u8f2f\")\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-UZFhVbRRcv\">\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><strong>\u9396\u7684\u904e\u671f\u6642\u9593\uff1a<\/strong>\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\uff0c\u4ee5\u9632\u6b62\u56e0\u70ba\u7a0b\u5e8f\u7570\u5e38\u5c0e\u81f4\u9396\u7121\u6cd5\u91cb\u653e\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\u696d\u52d9\u908f\u8f2f\u4e4b\u9593\u7684\u5e72\u64fe\u3002<\/li>\n<li><strong>\u932f\u8aa4\u8655\u7406\uff1a<\/strong>\u5728\u7372\u53d6\u9396\u548c\u91cb\u653e\u9396\u7684\u904e\u7a0b\u4e2d\uff0c\u61c9\u8a72\u8003\u616e\u5230\u53ef\u80fd\u51fa\u73fe\u7684\u932f\u8aa4\u60c5\u6cc1\uff0c\u4e26\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-UZFhVbRRcv\">\u7e3d\u7d50<\/h2>\n<p>\u5229\u7528Redis\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u662f\u4e00\u7a2e\u9ad8\u6548\u4e14\u7c21\u55ae\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u591a\u500b\u9032\u7a0b\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u901a\u904e\u5408\u7406\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\u548c\u552f\u4e00\u6027\uff0c\u53ef\u4ee5\u907f\u514d\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u6027\u554f\u984c\u3002\u5728\u9078\u64c7\u5408\u9069\u7684\u4f3a\u670d\u5668\u74b0\u5883\u6642\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u90e8\u7f72Redis\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5229\u7528Redis\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\uff0c\u78ba\u4fdd\u591a\u500b\u9032\u7a0b\u4e4b\u9593\u7684\u8cc7\u6e90\u5b89\u5168\u8207\u5354\u8abf\uff0c\u63d0\u5347\u7cfb\u7d71\u7a69\u5b9a\u6027\u8207\u6548\u7387\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-167641","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167641","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=167641"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167641\/revisions"}],"predecessor-version":[{"id":167642,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167641\/revisions\/167642"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=167641"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=167641"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=167641"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}