{"id":172241,"date":"2024-11-07T11:29:17","date_gmt":"2024-11-07T03:29:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/172241\/"},"modified":"2024-11-07T11:29:18","modified_gmt":"2024-11-07T03:29:18","slug":"%e8%ae%93redis%e8%a8%aa%e5%95%8f%e4%bf%9d%e6%8c%81%e7%b7%9a%e7%a8%8b%e5%ae%89%e5%85%a8%ef%bc%88redis%e8%a8%aa%e5%95%8f%e7%b7%9a%e7%a8%8b%e5%ae%89%e5%85%a8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/172241\/","title":{"rendered":"\u8b93Redis\u8a2a\u554f\u4fdd\u6301\u7dda\u7a0b\u5b89\u5168\uff08redis\u8a2a\u554f\u7dda\u7a0b\u5b89\u5168\uff09"},"content":{"rendered":"<h1 id=\"%e8%ae%93redis%e8%a8%aa%e5%95%8f%e4%bf%9d%e6%8c%81%e7%b7%9a%e7%a8%8b%e5%ae%89%e5%85%a8%ef%bc%88redis%e8%a8%aa%e5%95%8f%e7%b7%9a%e7%a8%8b%e5%ae%89%e5%85%a8%ef%bc%89-OULNiIsaKe\">\u8b93Redis\u8a2a\u554f\u4fdd\u6301\u7dda\u7a0b\u5b89\u5168\uff08redis\u8a2a\u554f\u7dda\u7a0b\u5b89\u5168\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u5834\u666f\u3002\u7136\u800c\uff0c\u7576\u591a\u500b\u7dda\u7a0b\u540c\u6642\u8a2a\u554fRedis\u6642\uff0c\u5982\u4f55\u78ba\u4fdd\u8a2a\u554f\u7684\u7dda\u7a0b\u5b89\u5168\u6027\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u7684\u7dda\u7a0b\u5b89\u5168\u6027\u554f\u984c\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e7%b7%9a%e7%a8%8b%e5%ae%89%e5%85%a8%e6%80%a7%e6%a6%82%e8%bf%b0-OULNiIsaKe\">Redis\u7684\u7dda\u7a0b\u5b89\u5168\u6027\u6982\u8ff0<\/h2>\n<p>Redis\u672c\u8eab\u662f\u55ae\u7dda\u7a0b\u7684\uff0c\u9019\u610f\u5473\u8457\u5b83\u5728\u4efb\u4f55\u6642\u523b\u53ea\u6703\u8655\u7406\u4e00\u500b\u8acb\u6c42\u3002\u9019\u7a2e\u8a2d\u8a08\u4f7f\u5f97Redis\u5728\u8655\u7406\u8acb\u6c42\u6642\u4e0d\u9700\u8981\u8003\u616e\u7dda\u7a0b\u5b89\u5168\u554f\u984c\uff0c\u56e0\u70ba\u4e0d\u6703\u6709\u591a\u500b\u7dda\u7a0b\u540c\u6642\u4fee\u6539\u6578\u64da\u3002\u7136\u800c\uff0c\u7576Redis\u88ab\u7528\u4f5c\u591a\u7dda\u7a0b\u61c9\u7528\u7684\u5f8c\u7aef\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u8003\u616e\u5982\u4f55\u5b89\u5168\u5730\u8a2a\u554fRedis\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e7%b7%9a%e7%a8%8b%e7%92%b0%e5%a2%83%e4%b8%ad%e7%9a%84%e5%95%8f%e9%a1%8c-OULNiIsaKe\">\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\u7684\u554f\u984c<\/h2>\n<p>\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\uff0c\u7576\u591a\u500b\u7dda\u7a0b\u540c\u6642\u5617\u8a66\u8a2a\u554fRedis\u6642\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u4ee5\u4e0b\u554f\u984c\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u7af6\u722d\uff1a<\/strong>\u5982\u679c\u591a\u500b\u7dda\u7a0b\u540c\u6642\u5c0dRedis\u9032\u884c\u5beb\u64cd\u4f5c\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002<\/li>\n<li><strong>\u9023\u63a5\u7ba1\u7406\uff1a<\/strong>\u6bcf\u500b\u7dda\u7a0b\u90fd\u53ef\u80fd\u9700\u8981\u7368\u7acb\u7684Redis\u9023\u63a5\uff0c\u9019\u6703\u589e\u52a0\u8cc7\u6e90\u6d88\u8017\u3002<\/li>\n<li><strong>\u6027\u80fd\u74f6\u9838\uff1a<\/strong>\u5982\u679c\u6240\u6709\u7dda\u7a0b\u90fd\u5171\u4eab\u4e00\u500b\u9023\u63a5\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-OULNiIsaKe\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u89e3\u6c7aRedis\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\u7684\u8a2a\u554f\u5b89\u5168\u6027\u554f\u984c\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e9%80%a3%e6%8e%a5%e6%b1%a0-OULNiIsaKe\">1. \u4f7f\u7528\u9023\u63a5\u6c60<\/h3>\n<p>\u9023\u63a5\u6c60\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u6709\u6548\u7ba1\u7406\u591a\u500b\u7dda\u7a0b\u5c0dRedis\u7684\u8a2a\u554f\u3002\u901a\u904e\u4f7f\u7528\u9023\u63a5\u6c60\uff0c\u6bcf\u500b\u7dda\u7a0b\u53ef\u4ee5\u5f9e\u6c60\u4e2d\u7372\u53d6\u4e00\u500b\u53ef\u7528\u7684Redis\u9023\u63a5\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u56e0\u70ba\u983b\u7e41\u5275\u5efa\u548c\u92b7\u6bc0\u9023\u63a5\u800c\u5e36\u4f86\u7684\u6027\u80fd\u640d\u8017\u3002<\/p>\n<pre><code>import redis\nfrom redis import ConnectionPool\n\n# \u5275\u5efa\u9023\u63a5\u6c60\npool = ConnectionPool(host='localhost', port=6379, db=0)\n\n# \u7372\u53d6\u9023\u63a5\nr = redis.Redis(connection_pool=pool)\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e9%8e%96-OULNiIsaKe\">2. \u4f7f\u7528\u9396<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528\u9396\u4f86\u4fdd\u8b77\u5c0dRedis\u7684\u8a2a\u554f\u662f\u5fc5\u8981\u7684\u3002\u9019\u53ef\u4ee5\u901a\u904eRedis\u672c\u8eab\u7684\u9396\u6a5f\u5236\u4f86\u5be6\u73fe\uff0c\u4f8b\u5982\u4f7f\u7528SETNX\u547d\u4ee4\u4f86\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u3002<\/p>\n<pre><code>import redis\nimport time\n\nr = redis.Redis()\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<h3 id=\"3-%e4%bd%bf%e7%94%a8%e6%b6%88%e6%81%af%e9%9a%8a%e5%88%97-OULNiIsaKe\">3. \u4f7f\u7528\u6d88\u606f\u968a\u5217<\/h3>\n<p>\u53e6\u4e00\u7a2e\u89e3\u6c7a\u65b9\u6848\u662f\u4f7f\u7528\u6d88\u606f\u968a\u5217\u4f86\u8655\u7406\u5c0dRedis\u7684\u8acb\u6c42\u3002\u9019\u6a23\u53ef\u4ee5\u5c07\u8acb\u6c42\u6392\u968a\uff0c\u78ba\u4fdd\u6bcf\u6b21\u53ea\u6709\u4e00\u500b\u8acb\u6c42\u88ab\u8655\u7406\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u7af6\u722d\u7684\u554f\u984c\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-OULNiIsaKe\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\uff0c\u78ba\u4fddRedis\u8a2a\u554f\u7684\u7dda\u7a0b\u5b89\u5168\u6027\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u901a\u904e\u4f7f\u7528\u9023\u63a5\u6c60\u3001\u9396\u548c\u6d88\u606f\u968a\u5217\u7b49\u6280\u8853\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u591a\u7dda\u7a0b\u5c0dRedis\u7684\u8a2a\u554f\uff0c\u5f9e\u800c\u63d0\u9ad8\u61c9\u7528\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002\u96a8\u8457\u61c9\u7528\u9700\u6c42\u7684\u589e\u9577\uff0c\u5c0d\u65bcRedis\u7684\u4f7f\u7528\u4e5f\u6703\u8d8a\u4f86\u8d8a\u666e\u904d\uff0c\u56e0\u6b64\u7406\u89e3\u548c\u5be6\u73fe\u7dda\u7a0b\u5b89\u5168\u7684\u8a2a\u554f\u7b56\u7565\u5c07\u6210\u70ba\u958b\u767c\u8005\u5fc5\u5099\u7684\u6280\u80fd\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<em><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/em>\u548c<em><a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a><\/em>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u78ba\u4fddRedis\u8a2a\u554f\u7684\u7dda\u7a0b\u5b89\u5168\u6027\uff0c\u63d0\u5347\u61c9\u7528\u6027\u80fd\u8207\u7a69\u5b9a\u6027\uff0c\u907f\u514d\u6578\u64da\u7af6\u722d\u8207\u932f\u8aa4\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-172241","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172241","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=172241"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172241\/revisions"}],"predecessor-version":[{"id":172242,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172241\/revisions\/172242"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=172241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=172241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=172241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}