{"id":129331,"date":"2024-10-26T20:49:20","date_gmt":"2024-10-26T12:49:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129331\/"},"modified":"2024-10-26T20:49:20","modified_gmt":"2024-10-26T12:49:20","slug":"redis%e9%8e%96%e5%ae%9a%e8%a8%aa%e5%95%8f%e8%b3%87%e6%ba%90%e7%9a%84%e6%96%b0%e9%80%94%e5%be%91%ef%bc%88%e8%a8%aa%e5%95%8f%e8%b3%87%e6%ba%90%e8%a2%abredis%e9%8e%96%e5%ae%9a%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129331\/","title":{"rendered":"Redis\u9396\u5b9a\u8a2a\u554f\u8cc7\u6e90\u7684\u65b0\u9014\u5f91\uff08\u8a2a\u554f\u8cc7\u6e90\u88abredis\u9396\u5b9a\uff09"},"content":{"rendered":"<h1 id=\"redis%e9%8e%96%e5%ae%9a%e8%a8%aa%e5%95%8f%e8%b3%87%e6%ba%90%e7%9a%84%e6%96%b0%e9%80%94%e5%be%91%ef%bc%88%e8%a8%aa%e5%95%8f%e8%b3%87%e6%ba%90%e8%a2%abredis%e9%8e%96%e5%ae%9a%ef%bc%89-wJmIXSyZmD\">Redis\u9396\u5b9a\u8a2a\u554f\u8cc7\u6e90\u7684\u65b0\u9014\u5f91\uff08\u8a2a\u554f\u8cc7\u6e90\u88abRedis\u9396\u5b9a\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u8cc7\u6e90\u7684\u8a2a\u554f\u63a7\u5236\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6a5f\u5236\u4f86\u7ba1\u7406\u8cc7\u6e90\u7684\u9396\u5b9a\uff0c\u5f9e\u800c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u9396\u5b9a\u8a2a\u554f\u8cc7\u6e90\u7684\u65b0\u9014\u5f91\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e9%8e%96%e5%ae%9a%ef%bc%9f-wJmIXSyZmD\">\u4ec0\u9ebc\u662fRedis\u9396\u5b9a\uff1f<\/h2>\n<p>Redis\u9396\u5b9a\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u7576\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u5617\u8a66\u8a2a\u554f\u540c\u4e00\u8cc7\u6e90\u6642\uff0c\u9396\u5b9a\u53ef\u4ee5\u9632\u6b62\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u6027\u3002Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u5b9a\u7b56\u7565\uff0c\u5305\u62ec\u7c21\u55ae\u9396\u3001\u53ef\u91cd\u5165\u9396\u548c\u5206\u4f48\u5f0f\u9396\u7b49\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e5%ae%9a%e7%9a%84%e9%a1%9e%e5%9e%8b-wJmIXSyZmD\">Redis\u9396\u5b9a\u7684\u985e\u578b<\/h2>\n<ul>\n<li><strong>\u7c21\u55ae\u9396\uff1a<\/strong>\u9019\u662f\u4e00\u7a2e\u57fa\u672c\u7684\u9396\u5b9a\u6a5f\u5236\uff0c\u901a\u5e38\u4f7f\u7528SETNX\u547d\u4ee4\u4f86\u5be6\u73fe\u3002\u7576\u4e00\u500b\u5ba2\u6236\u7aef\u7372\u5f97\u9396\u6642\uff0c\u5176\u4ed6\u5ba2\u6236\u7aef\u7121\u6cd5\u7372\u5f97\u8a72\u9396\u3002<\/li>\n<li><strong>\u53ef\u91cd\u5165\u9396\uff1a<\/strong>\u9019\u7a2e\u9396\u5b9a\u5141\u8a31\u540c\u4e00\u5ba2\u6236\u7aef\u591a\u6b21\u7372\u5f97\u9396\uff0c\u800c\u4e0d\u6703\u9020\u6210\u6b7b\u9396\u3002\u9019\u901a\u5e38\u9700\u8981\u5728\u9396\u4e2d\u5b58\u5132\u7372\u5f97\u9396\u7684\u5ba2\u6236\u7aefID\u3002<\/li>\n<li><strong>\u5206\u4f48\u5f0f\u9396\uff1a<\/strong>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u5206\u4f48\u5f0f\u9396\u53ef\u4ee5\u78ba\u4fdd\u591a\u500b\u5be6\u4f8b\u4e4b\u9593\u7684\u8cc7\u6e90\u8a2a\u554f\u63a7\u5236\u3002\u9019\u901a\u5e38\u4f7f\u7528Redisson\u7b49\u5eab\u4f86\u5be6\u73fe\u3002<\/li>\n<\/ul>\n<h2 id=\"redis%e9%8e%96%e5%ae%9a%e7%9a%84%e5%af%a6%e7%8f%be-wJmIXSyZmD\">Redis\u9396\u5b9a\u7684\u5be6\u73fe<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528Redis\u5be6\u73fe\u7c21\u55ae\u9396\u7684\u57fa\u672c\u4ee3\u78bc\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(0.001)  # \u7b49\u5f85\u4e00\u6bb5\u6642\u9593\u518d\u91cd\u8a66\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<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c<code>acquire_lock<\/code>\u51fd\u6578\u5617\u8a66\u7372\u5f97\u9396\uff0c\u4e26\u5728\u6210\u529f\u7372\u5f97\u9396\u5f8c\u8fd4\u56de\u4e00\u500b\u552f\u4e00\u7684\u6a19\u8b58\u7b26\u3002<code>release_lock<\/code>\u51fd\u6578\u5247\u7528\u65bc\u91cb\u653e\u9396\uff0c\u78ba\u4fdd\u53ea\u6709\u6301\u6709\u8a72\u9396\u7684\u5ba2\u6236\u7aef\u624d\u80fd\u91cb\u653e\u5b83\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e5%ae%9a%e7%9a%84%e5%84%aa%e5%8b%a2-wJmIXSyZmD\">Redis\u9396\u5b9a\u7684\u512a\u52e2<\/h2>\n<p>\u4f7f\u7528Redis\u9032\u884c\u9396\u5b9a\u6709\u591a\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u6027\uff1a<\/strong>Redis\u7684\u5167\u5b58\u5b58\u5132\u7279\u6027\u4f7f\u5f97\u9396\u5b9a\u64cd\u4f5c\u975e\u5e38\u5feb\u901f\u3002<\/li>\n<li><strong>\u7c21\u55ae\u6027\uff1a<\/strong>Redis\u7684API\u7c21\u55ae\u6613\u7528\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5be6\u73fe\u9396\u5b9a\u6a5f\u5236\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u652f\u6301\u591a\u7a2e\u9396\u5b9a\u7b56\u7565\uff0c\u9069\u61c9\u4e0d\u540c\u7684\u61c9\u7528\u5834\u666f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-wJmIXSyZmD\">\u7d50\u8ad6<\/h2>\n<p>Redis\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u5b9a\u6a5f\u5236\u4f86\u7ba1\u7406\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u9019\u4e9b\u9396\u5b9a\u6a5f\u5236\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u9632\u6b62\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u6027\u554f\u984c\u3002\u5728\u8a2d\u8a08\u5206\u4f48\u5f0f\u7cfb\u7d71\u6642\uff0c\u9078\u64c7\u5408\u9069\u7684\u9396\u5b9a\u7b56\u7565\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u61c9\u7528\u4e2d\u5be6\u73feRedis\u9396\u5b9a\u6709\u9032\u4e00\u6b65\u7684\u8208\u8da3\uff0c\u6216\u8005\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u7684\u8cc7\u8a0a\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u9396\u5b9a\u8a2a\u554f\u8cc7\u6e90\u7684\u65b0\u65b9\u6cd5\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u8cc7\u6e90\u8a2a\u554f\u4e26\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\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-129331","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129331","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=129331"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129331\/revisions"}],"predecessor-version":[{"id":129332,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129331\/revisions\/129332"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129331"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129331"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}