{"id":129339,"date":"2024-10-26T20:53:20","date_gmt":"2024-10-26T12:53:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129339\/"},"modified":"2024-10-26T20:53:21","modified_gmt":"2024-10-26T12:53:21","slug":"redis%e9%8e%96%e9%81%8e%e6%9c%9f%e5%af%a6%e7%8f%be%e4%b8%80%e9%8d%b5%e8%87%aa%e5%8b%95%e8%a7%a3%e9%8e%96%ef%bc%88redis%e9%8e%96%e9%81%8e%e6%9c%9f%e5%af%a6%e7%8f%be%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129339\/","title":{"rendered":"Redis\u9396\u904e\u671f\u5be6\u73fe\u4e00\u9375\u81ea\u52d5\u89e3\u9396\uff08redis\u9396\u904e\u671f\u5be6\u73fe\uff09"},"content":{"rendered":"<h1 id=\"redis%e9%8e%96%e9%81%8e%e6%9c%9f%e5%af%a6%e7%8f%be%e4%b8%80%e9%8d%b5%e8%87%aa%e5%8b%95%e8%a7%a3%e9%8e%96-VyxoIhyTTu\">Redis\u9396\u904e\u671f\u5be6\u73fe\u4e00\u9375\u81ea\u52d5\u89e3\u9396<\/h1>\n<p>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u9396\u7684\u4f7f\u7528\u662f\u70ba\u4e86\u9632\u6b62\u591a\u500b\u9032\u7a0b\u540c\u6642\u8a2a\u554f\u5171\u4eab\u8cc7\u6e90\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u7c21\u55ae\u800c\u5f37\u5927\u7684\u9396\u6a5f\u5236\u3002\u7136\u800c\uff0c\u9396\u7684\u7ba1\u7406\u4e5f\u5e36\u4f86\u4e86\u4e00\u4e9b\u6311\u6230\uff0c\u7279\u5225\u662f\u9396\u7684\u904e\u671f\u554f\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Redis\u4e2d\u5be6\u73fe\u9396\u7684\u904e\u671f\u81ea\u52d5\u89e3\u9396\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-VyxoIhyTTu\">Redis\u9396\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u9396\u901a\u5e38\u662f\u901a\u904e\u8a2d\u7f6e\u4e00\u500b\u9375\u4f86\u5be6\u73fe\u7684\u3002\u7576\u4e00\u500b\u9032\u7a0b\u9700\u8981\u7372\u53d6\u9396\u6642\uff0c\u5b83\u6703\u5617\u8a66\u8a2d\u7f6e\u9019\u500b\u9375\uff0c\u4e26\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\u3002\u9019\u6a23\u53ef\u4ee5\u9632\u6b62\u56e0\u70ba\u67d0\u4e9b\u539f\u56e0\u5c0e\u81f4\u9396\u7121\u6cd5\u91cb\u653e\u7684\u60c5\u6cc1\uff0c\u5f9e\u800c\u9020\u6210\u6b7b\u9396\u3002<\/p>\n<h3 id=\"%e9%8e%96%e7%9a%84%e8%a8%ad%e7%bd%ae-VyxoIhyTTu\">\u9396\u7684\u8a2d\u7f6e<\/h3>\n<p>\u8a2d\u7f6e\u9396\u7684\u57fa\u672c\u6b65\u9a5f\u5982\u4e0b\uff1a<\/p>\n<pre><code>SET lock_key unique_value NX PX 30000<\/code><\/pre>\n<ul>\n<li><code>lock_key<\/code>\uff1a\u9396\u7684\u9375\u540d\u3002<\/li>\n<li><code>unique_value<\/code>\uff1a\u4e00\u500b\u552f\u4e00\u7684\u503c\uff0c\u7528\u65bc\u6a19\u8b58\u9396\u7684\u64c1\u6709\u8005\u3002<\/li>\n<li><code>NX<\/code>\uff1a\u53ea\u6709\u7576\u9375\u4e0d\u5b58\u5728\u6642\u624d\u8a2d\u7f6e\u9375\u3002<\/li>\n<li><code>PX<\/code>\uff1a\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\uff08\u6beb\u79d2\uff09\u3002<\/li>\n<\/ul>\n<p>\u9019\u6a23\u8a2d\u7f6e\u5f8c\uff0c\u9396\u6703\u572830\u79d2\u5f8c\u81ea\u52d5\u904e\u671f\uff0c\u9632\u6b62\u6b7b\u9396\u7684\u60c5\u6cc1\u767c\u751f\u3002<\/p>\n<h2 id=\"%e9%8e%96%e7%9a%84%e8%87%aa%e5%8b%95%e8%a7%a3%e9%8e%96%e5%af%a6%e7%8f%be-VyxoIhyTTu\">\u9396\u7684\u81ea\u52d5\u89e3\u9396\u5be6\u73fe<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u9396\u7684\u64c1\u6709\u8005\u53ef\u80fd\u6703\u56e0\u70ba\u7570\u5e38\u60c5\u6cc1\u800c\u7121\u6cd5\u91cb\u653e\u9396\u3002\u9019\u6642\uff0c\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u5c31\u986f\u5f97\u5c24\u70ba\u91cd\u8981\u3002\u7576\u9396\u904e\u671f\u5f8c\uff0c\u5176\u4ed6\u9032\u7a0b\u5c31\u53ef\u4ee5\u81ea\u52d5\u7372\u53d6\u9396\uff0c\u5f9e\u800c\u7e7c\u7e8c\u57f7\u884c\u4efb\u52d9\u3002<\/p>\n<h3 id=\"%e8%87%aa%e5%8b%95%e8%a7%a3%e9%8e%96%e7%9a%84%e9%82%8f%e8%bc%af-VyxoIhyTTu\">\u81ea\u52d5\u89e3\u9396\u7684\u908f\u8f2f<\/h3>\n<p>\u81ea\u52d5\u89e3\u9396\u7684\u908f\u8f2f\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u6b65\u9a5f\u5be6\u73fe\uff1a<\/p>\n<ol>\n<li>\u9032\u7a0bA\u7372\u53d6\u9396\u4e26\u958b\u59cb\u57f7\u884c\u4efb\u52d9\u3002<\/li>\n<li>\u5982\u679c\u9032\u7a0bA\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\u767c\u751f\u7570\u5e38\uff0c\u9396\u6703\u5728\u8a2d\u5b9a\u7684\u904e\u671f\u6642\u9593\u5f8c\u81ea\u52d5\u91cb\u653e\u3002<\/li>\n<li>\u9032\u7a0bB\u53ef\u4ee5\u5728\u9396\u904e\u671f\u5f8c\u7372\u53d6\u9396\uff0c\u7e7c\u7e8c\u57f7\u884c\u4efb\u52d9\u3002<\/li>\n<\/ol>\n<h3 id=\"%e4%bb%a3%e7%a2%bc%e7%a4%ba%e4%be%8b-VyxoIhyTTu\">\u4ee3\u78bc\u793a\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Python\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528Redis\u5be6\u73fe\u9396\u7684\u81ea\u52d5\u89e3\u9396\uff1a<\/p>\n<pre><code>import redis\nimport time\n\n# \u9023\u63a5\u5230Redis\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\n# \u7372\u53d6\u9396\ndef acquire_lock(lock_name, unique_value, timeout=30):\n    lock = r.set(lock_name, unique_value, nx=True, px=timeout)\n    return lock\n\n# \u91cb\u653e\u9396\ndef release_lock(lock_name, unique_value):\n    if r.get(lock_name) == unique_value:\n        r.delete(lock_name)\n\n# \u4f7f\u7528\u9396\nlock_name = \"my_lock\"\nunique_value = \"unique_value_123\"\n\nif acquire_lock(lock_name, unique_value):\n    try:\n        # \u57f7\u884c\u4efb\u52d9\n        print(\"\u7372\u53d6\u9396\uff0c\u57f7\u884c\u4efb\u52d9\u4e2d...\")\n        time.sleep(10)  # \u6a21\u64ec\u4efb\u52d9\u57f7\u884c\n    finally:\n        release_lock(lock_name, unique_value)\n        print(\"\u91cb\u653e\u9396\")\nelse:\n    print(\"\u9396\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u7372\u53d6\")<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-VyxoIhyTTu\">\u7e3d\u7d50<\/h2>\n<p>Redis\u7684\u9396\u6a5f\u5236\u63d0\u4f9b\u4e86\u4e00\u7a2e\u7c21\u55ae\u800c\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u7ba1\u7406\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u901a\u904e\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u6b7b\u9396\u7684\u60c5\u6cc1\u767c\u751f\uff0c\u4e26\u5be6\u73fe\u4e00\u9375\u81ea\u52d5\u89e3\u9396\u7684\u529f\u80fd\u3002\u9019\u5c0d\u65bc\u5206\u4f48\u5f0f\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u4f7f\u7528Redis\u9396\u6709\u66f4\u591a\u7684\u8208\u8da3\uff0c\u6216\u8005\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u9396\u904e\u671f\u81ea\u52d5\u89e3\u9396\u7684\u5be6\u73fe\u65b9\u6cd5\uff0c\u63d0\u5347\u7cfb\u7d71\u6548\u7387\uff0c\u7c21\u5316\u9396\u7ba1\u7406\uff0c\u78ba\u4fdd\u8cc7\u6e90\u7684\u9ad8\u6548\u5229\u7528\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-129339","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129339","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=129339"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129339\/revisions"}],"predecessor-version":[{"id":129340,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129339\/revisions\/129340"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129339"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129339"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}