{"id":98062,"date":"2024-10-20T23:27:19","date_gmt":"2024-10-20T15:27:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/98062\/"},"modified":"2024-10-20T23:27:20","modified_gmt":"2024-10-20T15:27:20","slug":"redis-%e6%9f%a5%e7%9c%8b%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e5%be%9e%e5%af%a6%e7%8f%be%e5%8e%9f%e7%90%86%e5%88%b0%e6%87%89%e7%94%a8%e6%a1%88%e4%be%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/98062\/","title":{"rendered":"Redis \u67e5\u770b\u5206\u5e03\u5f0f\u9396\u5f9e\u5be6\u73fe\u539f\u7406\u5230\u61c9\u7528\u6848\u4f8b"},"content":{"rendered":"<h1 id=\"redis-%e6%9f%a5%e7%9c%8b%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e5%be%9e%e5%af%a6%e7%8f%be%e5%8e%9f%e7%90%86%e5%88%b0%e6%87%89%e7%94%a8%e6%a1%88%e4%be%8b-dVKztfIlAO\">Redis \u67e5\u770b\u5206\u5e03\u5f0f\u9396\u5f9e\u5be6\u73fe\u539f\u7406\u5230\u61c9\u7528\u6848\u4f8b<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u5206\u5e03\u5f0f\u9396\u662f\u4e00\u500b\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u591a\u500b\u5be6\u4f8b\u5354\u540c\u5de5\u4f5c\u7684\u60c5\u6cc1\u4e0b\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\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 Redis \u5206\u5e03\u5f0f\u9396\u7684\u5be6\u73fe\u539f\u7406\u53ca\u5176\u61c9\u7528\u6848\u4f8b\u3002<\/p>\n<h2 id=\"%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-dVKztfIlAO\">\u5206\u5e03\u5f0f\u9396\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u5728\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u7576\u591a\u500b\u670d\u52d9\u6216\u5be6\u4f8b\u9700\u8981\u8a2a\u554f\u5171\u4eab\u8cc7\u6e90\u6642\uff0c\u53ef\u80fd\u6703\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\u5be6\u4f8b\u53ef\u4ee5\u8a2a\u554f\u7279\u5b9a\u7684\u8cc7\u6e90\uff0c\u5f9e\u800c\u907f\u514d\u9019\u4e9b\u554f\u984c\u3002<\/p>\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%e5%8e%9f%e7%90%86-dVKztfIlAO\">Redis \u5206\u5e03\u5f0f\u9396\u7684\u5be6\u73fe\u539f\u7406<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u4e00\u7a2e\u7c21\u55ae\u7684\u65b9\u5f0f\u4f86\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\uff0c\u4e3b\u8981\u4f9d\u8cf4\u65bc\u5176\u539f\u5b50\u64cd\u4f5c\u548c\u904e\u671f\u6642\u9593\u7684\u7279\u6027\u3002\u4ee5\u4e0b\u662f Redis \u5206\u5e03\u5f0f\u9396\u7684\u57fa\u672c\u5be6\u73fe\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li><strong>\u7372\u53d6\u9396\uff1a<\/strong>\u4f7f\u7528 <code>SETNX<\/code> \u547d\u4ee4\u4f86\u8a2d\u7f6e\u4e00\u500b\u9396\u7684\u9375\u3002\u5982\u679c\u9375\u4e0d\u5b58\u5728\uff0c\u5247\u8a2d\u7f6e\u6210\u529f\uff0c\u8fd4\u56de 1\uff1b\u5982\u679c\u9375\u5df2\u5b58\u5728\uff0c\u5247\u8fd4\u56de 0\u3002<\/li>\n<li><strong>\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff1a<\/strong>\u70ba\u4e86\u9632\u6b62\u6b7b\u9396\uff0c\u61c9\u8a72\u70ba\u9396\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\u3002\u53ef\u4ee5\u4f7f\u7528 <code>EXPIRE<\/code> \u547d\u4ee4\u4f86\u8a2d\u7f6e\u3002<\/li>\n<li><strong>\u91cb\u653e\u9396\uff1a<\/strong>\u4f7f\u7528 <code>DEL<\/code> \u547d\u4ee4\u522a\u9664\u9396\u7684\u9375\uff0c\u91cb\u653e\u8cc7\u6e90\u3002<\/li>\n<\/ol>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Python \u4ee3\u78bc\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 Redis \u5be6\u73fe\u5206\u5e03\u5f0f\u9396\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 = redis_client\n        self.lock_name = lock_name\n        self.expire = expire\n\n    def acquire(self):\n        while True:\n            if self.redis.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.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\nlock.acquire()\ntry:\n    # \u57f7\u884c\u9700\u8981\u9396\u5b9a\u7684\u64cd\u4f5c\n    pass\nfinally:\n    lock.release()\n<\/code><\/pre>\n<h2 id=\"redis-%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e7%9a%84%e6%87%89%e7%94%a8%e6%a1%88%e4%be%8b-dVKztfIlAO\">Redis \u5206\u5e03\u5f0f\u9396\u7684\u61c9\u7528\u6848\u4f8b<\/h2>\n<p>Redis \u5206\u5e03\u5f0f\u9396\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u80fd\u767c\u63ee\u91cd\u8981\u4f5c\u7528\uff0c\u4ee5\u4e0b\u662f\u5e7e\u500b\u5e38\u898b\u7684\u61c9\u7528\u6848\u4f8b\uff1a<\/p>\n<ul>\n<li><strong>\u4efb\u52d9\u8abf\u5ea6\uff1a<\/strong>\u5728\u5206\u5e03\u5f0f\u4efb\u52d9\u8abf\u5ea6\u7cfb\u7d71\u4e2d\uff0c\u78ba\u4fdd\u540c\u4e00\u4efb\u52d9\u4e0d\u6703\u88ab\u591a\u500b\u5be6\u4f8b\u540c\u6642\u57f7\u884c\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u7ba1\u7406\uff1a<\/strong>\u5728\u591a\u500b\u670d\u52d9\u9700\u8981\u8a2a\u554f\u5171\u4eab\u8cc7\u6e90\uff08\u5982\u6578\u64da\u5eab\u6216\u6587\u4ef6\u7cfb\u7d71\uff09\u6642\uff0c\u4f7f\u7528\u5206\u5e03\u5f0f\u9396\u4f86\u907f\u514d\u7af6\u722d\u689d\u4ef6\u3002<\/li>\n<li><strong>\u9650\u6d41\u63a7\u5236\uff1a<\/strong>\u5728 API \u8acb\u6c42\u4e2d\uff0c\u4f7f\u7528\u5206\u5e03\u5f0f\u9396\u4f86\u9650\u5236\u540c\u4e00\u6642\u9593\u5167\u7684\u8acb\u6c42\u6578\u91cf\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-dVKztfIlAO\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528 Redis \u5206\u5e03\u5f0f\u9396\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u9396\u7684\u904e\u671f\u6642\u9593\u8db3\u5920\u9577\uff0c\u4ee5\u907f\u514d\u56e0\u64cd\u4f5c\u6642\u9593\u904e\u9577\u800c\u5c0e\u81f4\u7684\u6b7b\u9396\u3002<\/li>\n<li>\u5728\u91cb\u653e\u9396\u6642\uff0c\u61c9\u8a72\u78ba\u8a8d\u7576\u524d\u57f7\u884c\u7684\u5be6\u4f8b\u662f\u9396\u7684\u64c1\u6709\u8005\uff0c\u4ee5\u907f\u514d\u8aa4\u522a\u9664\u3002<\/li>\n<li>\u8003\u616e\u4f7f\u7528 Redlock \u7b97\u6cd5\u4f86\u63d0\u9ad8\u9396\u7684\u53ef\u9760\u6027\uff0c\u7279\u5225\u662f\u5728\u591a\u500b Redis \u5be6\u4f8b\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-dVKztfIlAO\">\u7e3d\u7d50<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u4e00\u7a2e\u7c21\u55ae\u800c\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u89e3\u6c7a\u591a\u5be6\u4f8b\u5354\u540c\u5de5\u4f5c\u6642\u7684\u8cc7\u6e90\u7af6\u722d\u554f\u984c\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0cRedis \u5206\u5e03\u5f0f\u9396\u53ef\u4ee5\u5728\u591a\u7a2e\u5834\u666f\u4e2d\u767c\u63ee\u91cd\u8981\u4f5c\u7528\u3002\u82e5\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>\u63a2\u7d22Redis\u5206\u5e03\u5f0f\u9396\u7684\u5be6\u73fe\u539f\u7406\u53ca\u61c9\u7528\u6848\u4f8b\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u8cc7\u6e90\u548c\u907f\u514d\u7af6\u722d\u689d\u4ef6\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-98062","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98062","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=98062"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98062\/revisions"}],"predecessor-version":[{"id":98063,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98062\/revisions\/98063"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=98062"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=98062"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=98062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}