{"id":129405,"date":"2024-10-26T21:22:18","date_gmt":"2024-10-26T13:22:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129405\/"},"modified":"2024-10-26T21:22:19","modified_gmt":"2024-10-26T13:22:19","slug":"redis%e9%8e%96%e5%af%a6%e7%8f%be%e5%88%86%e5%b8%83%e5%bc%8f%e8%b3%87%e6%ba%90%e7%ab%b6%e7%88%ad%e7%9a%84%e6%9c%89%e6%95%88%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88%ef%bc%88redis%e9%8e%96%e8%a7%a3%e6%b1%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129405\/","title":{"rendered":"Redis\u9396\u5be6\u73fe\u5206\u5e03\u5f0f\u8cc7\u6e90\u7af6\u722d\u7684\u6709\u6548\u89e3\u6c7a\u65b9\u6848\uff08redis\u9396\u89e3\u6c7a\u4ec0\u9ebc\u554f\u984c\uff09"},"content":{"rendered":"<h1 id=\"redis%e9%8e%96%e5%af%a6%e7%8f%be%e5%88%86%e5%b8%83%e5%bc%8f%e8%b3%87%e6%ba%90%e7%ab%b6%e7%88%ad%e7%9a%84%e6%9c%89%e6%95%88%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-KqIvcdiUOL\">Redis\u9396\u5be6\u73fe\u5206\u5e03\u5f0f\u8cc7\u6e90\u7af6\u722d\u7684\u6709\u6548\u89e3\u6c7a\u65b9\u6848<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u8cc7\u6e90\u7af6\u722d\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\u3002\u7576\u591a\u500b\u9032\u7a0b\u6216\u670d\u52d9\u540c\u6642\u5617\u8a66\u8a2a\u554f\u5171\u4eab\u8cc7\u6e90\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u7cfb\u7d71\u5d29\u6f70\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u4e00\u554f\u984c\uff0cRedis\u9396\u4f5c\u70ba\u4e00\u7a2e\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u9010\u6f38\u53d7\u5230\u958b\u767c\u8005\u7684\u9752\u775e\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u9396\u7684\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u5728\u5206\u5e03\u5f0f\u8cc7\u6e90\u7af6\u722d\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e9%8e%96%ef%bc%9f-KqIvcdiUOL\">\u4ec0\u9ebc\u662fRedis\u9396\uff1f<\/h2>\n<p>Redis\u9396\u662f\u4e00\u7a2e\u57fa\u65bcRedis\u6578\u64da\u5eab\u7684\u9396\u6a5f\u5236\uff0c\u65e8\u5728\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u5b83\u5229\u7528Redis\u7684\u539f\u5b50\u64cd\u4f5c\u7279\u6027\uff0c\u78ba\u4fdd\u5728\u591a\u500b\u5ba2\u6236\u7aef\u4e4b\u9593\u7684\u4e92\u65a5\u8a2a\u554f\u3002\u9019\u7a2e\u9396\u7684\u5be6\u73fe\u65b9\u5f0f\u901a\u5e38\u662f\u901a\u904e\u8a2d\u7f6e\u4e00\u500b\u7279\u5b9a\u7684\u9375\u4f86\u9054\u6210\uff0c\u7576\u4e00\u500b\u5ba2\u6236\u7aef\u7372\u5f97\u9396\u6642\uff0c\u8a72\u9375\u6703\u88ab\u8a2d\u7f6e\u70ba\u67d0\u500b\u503c\uff0c\u4e26\u4e14\u5728\u9396\u91cb\u653e\u4e4b\u524d\uff0c\u5176\u4ed6\u5ba2\u6236\u7aef\u7121\u6cd5\u7372\u5f97\u8a72\u9396\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-KqIvcdiUOL\">Redis\u9396\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>Redis\u9396\u7684\u57fa\u672c\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u5ba2\u6236\u7aef\u5617\u8a66\u7372\u53d6\u9396\uff0c\u901a\u904e\u8a2d\u7f6e\u4e00\u500b\u9375\uff08\u4f8b\u5982 &#8220;lock:key&#8221;\uff09\u4f86\u5be6\u73fe\u3002<\/li>\n<li>\u5982\u679c\u8a72\u9375\u4e0d\u5b58\u5728\uff0c\u5247\u8a2d\u7f6e\u6210\u529f\uff0c\u5ba2\u6236\u7aef\u7372\u5f97\u9396\u3002<\/li>\n<li>\u5982\u679c\u8a72\u9375\u5df2\u5b58\u5728\uff0c\u5247\u8868\u793a\u9396\u5df2\u88ab\u5176\u4ed6\u5ba2\u6236\u7aef\u6301\u6709\uff0c\u7576\u524d\u5ba2\u6236\u7aef\u9700\u8981\u7b49\u5f85\u6216\u91cd\u8a66\u3002<\/li>\n<li>\u5ba2\u6236\u7aef\u5728\u5b8c\u6210\u64cd\u4f5c\u5f8c\uff0c\u91cb\u653e\u9396\uff0c\u522a\u9664\u8a72\u9375\u3002<\/li>\n<\/ol>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Redis\u9396\u5be6\u73fe\u793a\u4f8b\uff1a<\/p>\n<pre><code>import redis\nimport time\n\n# \u9023\u63a5\u5230Redis\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\ndef acquire_lock(lock_name, acquire_time=10):\n    identifier = str(uuid.uuid4())\n    end = time.time() + acquire_time\n    while time.time() &lt; end:\n        if r.set(lock_name, identifier, nx=True, ex=acquire_time):\n            return identifier\n        time.sleep(0.01)\n    return False\n\ndef release_lock(lock_name, identifier):\n    pipe = r.pipeline(True)\n    while True:\n        try:\n            pipe.watch(lock_name)\n            if pipe.get(lock_name) == identifier:\n                pipe.multi()\n                pipe.delete(lock_name)\n                pipe.execute()\n                return True\n            pipe.unwatch()\n            break\n        except redis.WatchError:\n            pass\n    return False\n<\/code><\/pre>\n<h2 id=\"redis%e9%8e%96%e8%a7%a3%e6%b1%ba%e7%9a%84%e5%95%8f%e9%a1%8c-KqIvcdiUOL\">Redis\u9396\u89e3\u6c7a\u7684\u554f\u984c<\/h2>\n<p>Redis\u9396\u4e3b\u8981\u89e3\u6c7a\u4ee5\u4e0b\u5e7e\u500b\u554f\u984c\uff1a<\/p>\n<ul>\n<li><strong>\u8cc7\u6e90\u7af6\u722d\uff1a<\/strong>\u5728\u591a\u500b\u9032\u7a0b\u6216\u670d\u52d9\u540c\u6642\u8a2a\u554f\u5171\u4eab\u8cc7\u6e90\u6642\uff0cRedis\u9396\u53ef\u4ee5\u78ba\u4fdd\u53ea\u6709\u4e00\u500b\u9032\u7a0b\u80fd\u5920\u8a2a\u554f\u8a72\u8cc7\u6e90\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002<\/li>\n<li><strong>\u6b7b\u9396\u554f\u984c\uff1a<\/strong>\u901a\u904e\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff0cRedis\u9396\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u6b7b\u9396\u7684\u767c\u751f\u3002\u5982\u679c\u67d0\u500b\u9032\u7a0b\u5728\u6301\u6709\u9396\u7684\u60c5\u6cc1\u4e0b\u5d29\u6f70\uff0c\u9396\u6703\u5728\u904e\u671f\u5f8c\u81ea\u52d5\u91cb\u653e\u3002<\/li>\n<li><strong>\u6027\u80fd\u512a\u5316\uff1a<\/strong>Redis\u7684\u9ad8\u6027\u80fd\u7279\u6027\u4f7f\u5f97\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u64cd\u4f5c\u975e\u5e38\u8fc5\u901f\uff0c\u9069\u5408\u9ad8\u4e26\u767c\u7684\u5834\u666f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-KqIvcdiUOL\">\u7d50\u8ad6<\/h2>\n<p>Redis\u9396\u4f5c\u70ba\u4e00\u7a2e\u6709\u6548\u7684\u5206\u5e03\u5f0f\u9396\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u6709\u6548\u89e3\u6c7a\u8cc7\u6e90\u7af6\u722d\u3001\u6b7b\u9396\u7b49\u554f\u984c\u3002\u96a8\u8457\u5206\u5e03\u5f0f\u7cfb\u7d71\u7684\u666e\u53ca\uff0cRedis\u9396\u7684\u61c9\u7528\u5834\u666f\u4e5f\u8d8a\u4f86\u8d8a\u5ee3\u6cdb\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u7684\u61c9\u7528\u4f86\u8aaa\uff0cRedis\u9396\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u7cfb\u7d71\u4e2d\u5be6\u73feRedis\u9396\u6709\u9032\u4e00\u6b65\u7684\u8208\u8da3\uff0c\u6216\u8005\u9700\u8981\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u7684\u8cc7\u8a0a\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis\u9396\u63d0\u4f9b\u9ad8\u6548\u7684\u5206\u5e03\u5f0f\u8cc7\u6e90\u7af6\u722d\u89e3\u6c7a\u65b9\u6848\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u8207\u64cd\u4f5c\u5b89\u5168\uff0c\u907f\u514d\u591a\u500b\u5be6\u4f8b\u540c\u6642\u4fee\u6539\u8cc7\u6e90\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-129405","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129405","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=129405"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129405\/revisions"}],"predecessor-version":[{"id":129406,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129405\/revisions\/129406"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129405"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129405"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129405"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}