{"id":129427,"date":"2024-10-26T21:32:20","date_gmt":"2024-10-26T13:32:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129427\/"},"modified":"2024-10-26T21:32:22","modified_gmt":"2024-10-26T13:32:22","slug":"redis%e9%8e%96%e6%96%b0%e7%9a%84%e5%90%8c%e6%ad%a5%e4%ba%92%e6%96%a5%e6%96%b9%e5%bc%8f%ef%bc%88redis%e9%8e%96%e4%bd%bf%e7%94%a8%e7%8f%be%e8%b1%a1%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129427\/","title":{"rendered":"Redis\u9396\u65b0\u7684\u540c\u6b65\u4e92\u65a5\u65b9\u5f0f\uff08redis\u9396\u4f7f\u7528\u73fe\u8c61\uff09"},"content":{"rendered":"<h1 id=\"redis%e9%8e%96%e6%96%b0%e7%9a%84%e5%90%8c%e6%ad%a5%e4%ba%92%e6%96%a5%e6%96%b9%e5%bc%8f%ef%bc%88redis%e9%8e%96%e4%bd%bf%e7%94%a8%e7%8f%be%e8%b1%a1%ef%bc%89-xhtqNfVfea\">Redis\u9396\u65b0\u7684\u540c\u6b65\u4e92\u65a5\u65b9\u5f0f\uff08Redis\u9396\u4f7f\u7528\u73fe\u8c61\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u6578\u64da\u4e00\u81f4\u6027\u548c\u8cc7\u6e90\u7684\u6709\u6548\u7ba1\u7406\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6a5f\u5236\u4f86\u5be6\u73fe\u6578\u64da\u7684\u540c\u6b65\u548c\u4e92\u65a5\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u5c31\u662fRedis\u9396\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u9396\u7684\u4f7f\u7528\u73fe\u8c61\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e9%8e%96%ef%bc%9f-xhtqNfVfea\">\u4ec0\u9ebc\u662fRedis\u9396\uff1f<\/h2>\n<p>Redis\u9396\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u5b83\u53ef\u4ee5\u9632\u6b62\u591a\u500b\u9032\u7a0b\u6216\u7dda\u7a0b\u540c\u6642\u8a2a\u554f\u540c\u4e00\u8cc7\u6e90\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002Redis\u9396\u7684\u5be6\u73fe\u901a\u5e38\u57fa\u65bcSETNX\u547d\u4ee4\uff0c\u9019\u662f\u4e00\u500b\u539f\u5b50\u64cd\u4f5c\uff0c\u80fd\u5920\u78ba\u4fdd\u53ea\u6709\u4e00\u500b\u5ba2\u6236\u7aef\u80fd\u5920\u6210\u529f\u8a2d\u7f6e\u9396\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e4%bd%bf%e7%94%a8-xhtqNfVfea\">Redis\u9396\u7684\u57fa\u672c\u4f7f\u7528<\/h2>\n<p>\u4f7f\u7528Redis\u9396\u7684\u57fa\u672c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u5ba2\u6236\u7aef\u5617\u8a66\u7372\u53d6\u9396\u3002<\/li>\n<li>\u5982\u679c\u9396\u53ef\u7528\uff0c\u5247\u8a2d\u7f6e\u9396\u4e26\u57f7\u884c\u76f8\u61c9\u7684\u64cd\u4f5c\u3002<\/li>\n<li>\u64cd\u4f5c\u5b8c\u6210\u5f8c\uff0c\u91cb\u653e\u9396\u3002<\/li>\n<\/ol>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\u4ee3\u78bc\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5728Redis\u4e2d\u5be6\u73fe\u9396\uff1a<\/p>\n<pre><code>import redis\nimport time\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u7372\u53d6\u9396\u7684\u51fd\u6578\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\n# \u91cb\u653e\u9396\u7684\u51fd\u6578\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%e7%9a%84%e4%bd%bf%e7%94%a8%e7%8f%be%e8%b1%a1-xhtqNfVfea\">Redis\u9396\u7684\u4f7f\u7528\u73fe\u8c61<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0cRedis\u9396\u7684\u4f7f\u7528\u73fe\u8c61\u4e3b\u8981\u9ad4\u73fe\u5728\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u9632\u6b62\u91cd\u5165\uff1a<\/strong>\u7576\u4e00\u500b\u9032\u7a0b\u5df2\u7d93\u7372\u5f97\u9396\u6642\uff0c\u5176\u4ed6\u9032\u7a0b\u7121\u6cd5\u518d\u6b21\u7372\u5f97\u8a72\u9396\uff0c\u9019\u6a23\u53ef\u4ee5\u9632\u6b62\u91cd\u5165\u5c0e\u81f4\u7684\u554f\u984c\u3002<\/li>\n<li><strong>\u8d85\u6642\u6a5f\u5236\uff1a<\/strong>\u70ba\u4e86\u907f\u514d\u6b7b\u9396\uff0cRedis\u9396\u901a\u5e38\u6703\u8a2d\u7f6e\u8d85\u6642\u6a5f\u5236\uff0c\u78ba\u4fdd\u9396\u5728\u4e00\u5b9a\u6642\u9593\u5167\u81ea\u52d5\u91cb\u653e\u3002<\/li>\n<li><strong>\u5206\u4f48\u5f0f\u74b0\u5883\u4e2d\u7684\u4e00\u81f4\u6027\uff1a<\/strong>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0cRedis\u9396\u80fd\u5920\u6709\u6548\u5730\u5354\u8abf\u591a\u500b\u5be6\u4f8b\u4e4b\u9593\u7684\u8cc7\u6e90\u8a2a\u554f\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%84%aa%e7%bc%ba%e9%bb%9e-xhtqNfVfea\">Redis\u9396\u7684\u512a\u7f3a\u9ede<\/h2>\n<p>\u96d6\u7136Redis\u9396\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u80fd\u5920\u6709\u6548\u5730\u89e3\u6c7a\u554f\u984c\uff0c\u4f46\u5b83\u4e5f\u6709\u5176\u5c40\u9650\u6027\uff1a<\/p>\n<h3 id=\"%e5%84%aa%e9%bb%9e-xhtqNfVfea\">\u512a\u9ede<\/h3>\n<ul>\n<li>\u9ad8\u6548\uff1aRedis\u7684\u6027\u80fd\u975e\u5e38\u9ad8\uff0c\u80fd\u5920\u5feb\u901f\u7372\u53d6\u548c\u91cb\u653e\u9396\u3002<\/li>\n<li>\u7c21\u55ae\u6613\u7528\uff1a\u4f7f\u7528Redis\u9396\u7684API\u76f8\u5c0d\u7c21\u55ae\uff0c\u6613\u65bc\u96c6\u6210\u5230\u73fe\u6709\u7cfb\u7d71\u4e2d\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%bc%ba%e9%bb%9e-xhtqNfVfea\">\u7f3a\u9ede<\/h3>\n<ul>\n<li>\u53ef\u80fd\u5c0e\u81f4\u6b7b\u9396\uff1a\u5982\u679c\u9396\u7684\u91cb\u653e\u4e0d\u7576\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6b7b\u9396\u7684\u60c5\u6cc1\u3002<\/li>\n<li>\u4f9d\u8cf4\u65bcRedis\u7684\u53ef\u7528\u6027\uff1a\u5982\u679cRedis\u670d\u52d9\u5668\u51fa\u73fe\u6545\u969c\uff0c\u5c07\u7121\u6cd5\u7372\u53d6\u6216\u91cb\u653e\u9396\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-xhtqNfVfea\">\u7e3d\u7d50<\/h2>\n<p>Redis\u9396\u4f5c\u70ba\u4e00\u7a2e\u6709\u6548\u7684\u540c\u6b65\u4e92\u65a5\u65b9\u5f0f\uff0c\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u89d2\u8272\u3002\u901a\u904e\u5408\u7406\u7684\u4f7f\u7528Redis\u9396\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u8cc7\u6e90\u8a2a\u554f\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002\u7136\u800c\uff0c\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u958b\u767c\u8005\u9700\u8981\u6ce8\u610f\u5176\u6f5b\u5728\u7684\u554f\u984c\uff0c\u5982\u6b7b\u9396\u548c\u4f9d\u8cf4\u6027\u7b49\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u8cc7\u6e90\u7ba1\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u9396\u7684\u65b0\u540c\u6b65\u4e92\u65a5\u65b9\u5f0f\uff0c\u4e86\u89e3\u5176\u4f7f\u7528\u73fe\u8c61\u53ca\u512a\u52e2\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u6578\u64da\u4e00\u81f4\u6027\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-129427","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129427","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=129427"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129427\/revisions"}],"predecessor-version":[{"id":129428,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129427\/revisions\/129428"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129427"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129427"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}