{"id":5073,"date":"2024-11-14T10:09:38","date_gmt":"2024-11-14T02:09:38","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5073\/"},"modified":"2024-11-14T10:09:38","modified_gmt":"2024-11-14T02:09:38","slug":"redis%e6%80%8e%e4%b9%88%e7%94%a8%e5%88%86%e5%b8%83%e9%94%81","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5073\/","title":{"rendered":"redis\u600e\u4e48\u7528\u5206\u5e03\u9501"},"content":{"rendered":"<blockquote><p>\n  \u5982\u4f55\u4f7f\u7528 redis \u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff1f\u83b7\u53d6\u9501\uff1a\u4f7f\u7528 setnx \u8bbe\u7f6e\u552f\u4e00\u952e\u4e3a\u5f53\u524d\u8fdb\u7a0b id\uff0c\u82e5\u4e0d\u5b58\u5728\u5219\u6210\u529f\u83b7\u53d6\u9501\u3002\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff1a\u4f7f\u7528 expire \u8bbe\u7f6e\u9501\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u4ee5\u9632\u8fdb\u7a0b\u610f\u5916\u5d29\u6e83\u3002\u6267\u884c\u4e34\u754c\u533a\u64cd\u4f5c\uff1a\u5728\u83b7\u53d6\u9501\u540e\u6267\u884c\u5171\u4eab\u8d44\u6e90\u64cd\u4f5c\u3002\u91ca\u653e\u9501\uff1a\u5b8c\u6210\u540e\uff0c\u4f7f\u7528 del \u5220\u9664\u5bc6\u94a5\u91ca\u653e\u9501\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202405\/21\/2024052114182339617.jpg\" class=\"aligncenter\" title=\"redis\u600e\u4e48\u7528\u5206\u5e03\u9501\u63d2\u56fe\" alt=\"redis\u600e\u4e48\u7528\u5206\u5e03\u9501\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528 Redis \u5b9e\u73b0\u5206\u5e03\u5f0f\u9501<\/strong><\/p>\n<p><strong>\u4ec0\u4e48\u662f\u5206\u5e03\u5f0f\u9501\uff1f<\/strong><\/p>\n<p>\u5206\u5e03\u5f0f\u9501\u662f\u4e00\u79cd\u534f\u8c03\u673a\u5236\uff0c\u7528\u4e8e\u786e\u4fdd\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u540c\u65f6\u53ea\u6709\u4e00\u4e2a\u8fdb\u7a0b\u6267\u884c\u4e34\u754c\u533a\uff08\u5171\u4eab\u8d44\u6e90\u7684\u8bbf\u95ee\uff09\u3002<\/p>\n<p><strong>\u4e3a\u4ec0\u4e48\u4f7f\u7528 Redis \u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff1f<\/strong><\/p>\n<p>Redis \u662f\u4e00\u79cd\u5185\u5b58\u6570\u636e\u5e93\uff0c\u5177\u6709\u4ee5\u4e0b\u4f18\u52bf\uff0c\u4f7f\u5176\u6210\u4e3a\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u7406\u60f3\u9009\u62e9\uff1a<\/p>\n<ul>\n<li> <strong>\u901f\u5ea6\u5feb\uff1a<\/strong> Redis \u662f\u4e00\u79cd\u9ad8\u6027\u80fd\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u5feb\u901f\u6267\u884c\u547d\u4ee4\u3002<\/li>\n<li> <strong>\u9ad8\u53ef\u7528\u6027\uff1a<\/strong> Redis \u53ef\u4ee5\u914d\u7f6e\u4e3a\u4f7f\u7528\u4e3b\u4ece\u590d\u5236\u6216\u96c6\u7fa4\uff0c\u4ee5\u63d0\u9ad8\u53ef\u7528\u6027\u548c\u5bb9\u9519\u6027\u3002<\/li>\n<li> <strong>\u5185\u7f6e\u652f\u6301\uff1a<\/strong> Redis \u63d0\u4f9b\u4e86 SETNX\uff08\u8bbe\u7f6e\u4e0d\u5b58\u5728\u7684\u503c\uff09\u548c EXPIRE\uff08\u8bbe\u7f6e\u952e\u7684\u5230\u671f\u65f6\u95f4\uff09\u7b49\u547d\u4ee4\uff0c\u975e\u5e38\u9002\u5408\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u3002<\/li>\n<\/ul>\n<p><strong>\u5982\u4f55\u4f7f\u7528 Redis \u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff1f<\/strong><\/p>\n<p>\u4f7f\u7528 Redis \u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li> <strong>\u83b7\u53d6\u9501\uff1a<\/strong> \u4f7f\u7528 SETNX \u547d\u4ee4\u5c06\u552f\u4e00\u7684\u952e\uff08\u4f8b\u5982\u201cmy_lock\u201d\uff09\u8bbe\u7f6e\u4e3a\u5f53\u524d\u8fdb\u7a0b\u7684 ID\uff08\u4f8b\u5982\u201cprocess_1\u201d\uff09\u3002\u5982\u679c\u952e\u4e0d\u5b58\u5728\uff0c\u5219\u64cd\u4f5c\u6210\u529f\uff0c\u5e76\u4e14\u8fdb\u7a0b\u83b7\u5f97\u9501\u3002<\/li>\n<li> <strong>\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff1a<\/strong> \u4f7f\u7528 EXPIRE \u547d\u4ee4\u4e3a\u9501\u8bbe\u7f6e\u4e00\u4e2a\u8f83\u77ed\u7684\u8fc7\u671f\u65f6\u95f4\uff08\u4f8b\u5982 30 \u79d2\uff09\uff0c\u4ee5\u9632\u8fdb\u7a0b\u610f\u5916\u5d29\u6e83\u800c\u672a\u91ca\u653e\u9501\u3002<\/li>\n<li> <strong>\u6267\u884c\u4e34\u754c\u533a\u64cd\u4f5c\uff1a<\/strong> \u4e00\u65e6\u83b7\u53d6\u9501\uff0c\u8fdb\u7a0b\u5c31\u53ef\u4ee5\u6267\u884c\u4e34\u754c\u533a\u64cd\u4f5c\uff08\u4f8b\u5982\uff0c\u66f4\u65b0\u6570\u636e\u5e93\u8bb0\u5f55\uff09\u3002<\/li>\n<li> <strong>\u91ca\u653e\u9501\uff1a<\/strong> \u5f53\u4e34\u754c\u533a\u64cd\u4f5c\u5b8c\u6210\u540e\uff0c\u8fdb\u7a0b\u53ef\u4ee5\u4f7f\u7528 DEL \u547d\u4ee4\u91ca\u653e\u9501\u3002\u8be5\u547d\u4ee4\u5c06\u5220\u9664\u5bc6\u94a5\uff0c\u91ca\u653e\u9501\u3002<\/li>\n<\/ol>\n<p><strong>\u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n<pre>import redis\n\n# \u8fde\u63a5\u5230 Redis\nr = redis.Redis(host='localhost', port=6379)\n\n# \u83b7\u53d6\u9501\uff08\u5047\u8bbe\u952e\u4e3a\u201cmy_lock\u201d\u548c\u8fc7\u671f\u65f6\u95f4\u4e3a 30 \u79d2\uff09\nlock_acquired = r.setnx('my_lock', 'process_1')\nr.expire('my_lock', 30)\n\n# \u5982\u679c\u83b7\u53d6\u9501\u6210\u529f\nif lock_acquired:\n    # \u6267\u884c\u4e34\u754c\u533a\u64cd\u4f5c\n\n    # \u91ca\u653e\u9501\n    r.delete('my_lock')<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n<ul>\n<li>\u786e\u4fdd\u8fc7\u671f\u65f6\u95f4\u8db3\u591f\u957f\uff0c\u4ee5\u5141\u8bb8\u8fdb\u7a0b\u5b8c\u6210\u4e34\u754c\u533a\u64cd\u4f5c\uff0c\u4f46\u53c8\u8db3\u591f\u77ed\uff0c\u4ee5\u9632\u6b62\u6b7b\u9501\u3002<\/li>\n<li>\u4f7f\u7528\u552f\u4e00\u7684\u952e\u540d\u79f0\uff0c\u4ee5\u907f\u514d\u4e0e\u5176\u4ed6\u5206\u5e03\u5f0f\u9501\u51b2\u7a81\u3002<\/li>\n<li>\u5728\u6267\u884c\u4efb\u4f55\u4e34\u754c\u533a\u64cd\u4f5c\u4e4b\u524d\uff0c\u59cb\u7ec8\u68c0\u67e5\u662f\u5426\u83b7\u53d6\u4e86\u9501\u3002<\/li>\n<li>\u5c1d\u8bd5\u4f7f\u7528\u9501\u91cd\u8bd5\u673a\u5236\u6765\u5904\u7406\u6216\u8d85\u65f6\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u7528\u5206\u5e03\u9501\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528 redis \u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff1f\u83b7\u53d6\u9501\uff1a\u4f7f\u7528 setnx \u8bbe\u7f6e\u552f\u4e00\u952e\u4e3a\u5f53\u524d\u8fdb\u7a0b id\uff0c\u82e5\u4e0d\u5b58\u5728\u5219\u6210\u529f\u83b7\u53d6\u9501\u3002\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff1a\u4f7f\u7528 expire \u8bbe\u7f6e\u9501\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u4ee5\u9632\u8fdb\u7a0b\u610f\u5916\u5d29\u6e83\u3002\u6267\u884c\u4e34\u754c\u533a\u64cd\u4f5c\uff1a\u5728\u83b7\u53d6\u9501\u540e\u6267\u884c\u5171\u4eab\u8d44\u6e90\u64cd\u4f5c\u3002\u91ca\u653e\u9501\uff1a\u5b8c\u6210\u540e\uff0c\u4f7f\u7528 del \u5220\u9664\u5bc6\u94a5\u91ca\u653e\u9501\u3002 \u5982\u4f55\u4f7f\u7528 Redis \u5b9e\u73b0\u5206\u5e03\u5f0f\u9501 \u4ec0\u4e48\u662f\u5206\u5e03\u5f0f\u9501\uff1f \u5206\u5e03\u5f0f\u9501\u662f\u4e00\u79cd\u534f\u8c03\u673a\u5236\uff0c\u7528\u4e8e\u786e\u4fdd\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u540c\u65f6\u53ea\u6709\u4e00\u4e2a\u8fdb\u7a0b\u6267\u884c\u4e34\u754c\u533a\uff08\u5171\u4eab\u8d44\u6e90\u7684\u8bbf\u95ee\uff09\u3002 \u4e3a\u4ec0\u4e48\u4f7f\u7528 Redis \u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff1f Redis \u662f\u4e00\u79cd\u5185\u5b58\u6570\u636e\u5e93\uff0c\u5177\u6709\u4ee5\u4e0b\u4f18\u52bf\uff0c\u4f7f\u5176\u6210\u4e3a\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u7406\u60f3\u9009\u62e9\uff1a \u901f\u5ea6\u5feb\uff1a Redis \u662f\u4e00\u79cd\u9ad8\u6027\u80fd\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u5feb\u901f\u6267\u884c\u547d\u4ee4\u3002 \u9ad8\u53ef\u7528\u6027\uff1a Redis \u53ef\u4ee5\u914d\u7f6e\u4e3a\u4f7f\u7528\u4e3b\u4ece\u590d\u5236\u6216\u96c6\u7fa4\uff0c\u4ee5\u63d0\u9ad8\u53ef\u7528\u6027\u548c\u5bb9\u9519\u6027\u3002 \u5185\u7f6e\u652f\u6301\uff1a Redis \u63d0\u4f9b\u4e86 SETNX\uff08\u8bbe\u7f6e\u4e0d\u5b58\u5728\u7684\u503c\uff09\u548c EXPIRE\uff08\u8bbe\u7f6e\u952e\u7684\u5230\u671f\u65f6\u95f4\uff09\u7b49\u547d\u4ee4\uff0c\u975e\u5e38\u9002\u5408\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u3002 \u5982\u4f55\u4f7f\u7528 Redis \u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff1f \u4f7f\u7528 Redis \u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a \u83b7\u53d6\u9501\uff1a \u4f7f\u7528 SETNX \u547d\u4ee4\u5c06\u552f\u4e00\u7684\u952e\uff08\u4f8b\u5982\u201cmy_lock\u201d\uff09\u8bbe\u7f6e\u4e3a\u5f53\u524d\u8fdb\u7a0b\u7684 ID\uff08\u4f8b\u5982\u201cprocess_1\u201d\uff09\u3002\u5982\u679c\u952e\u4e0d\u5b58\u5728\uff0c\u5219\u64cd\u4f5c\u6210\u529f\uff0c\u5e76\u4e14\u8fdb\u7a0b\u83b7\u5f97\u9501\u3002 \u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff1a \u4f7f\u7528 EXPIRE \u547d\u4ee4\u4e3a\u9501\u8bbe\u7f6e\u4e00\u4e2a\u8f83\u77ed\u7684\u8fc7\u671f\u65f6\u95f4\uff08\u4f8b\u5982 30 \u79d2\uff09\uff0c\u4ee5\u9632\u8fdb\u7a0b\u610f\u5916\u5d29\u6e83\u800c\u672a\u91ca\u653e\u9501\u3002 \u6267\u884c\u4e34\u754c\u533a\u64cd\u4f5c\uff1a \u4e00\u65e6\u83b7\u53d6\u9501\uff0c\u8fdb\u7a0b\u5c31\u53ef\u4ee5\u6267\u884c\u4e34\u754c\u533a\u64cd\u4f5c\uff08\u4f8b\u5982\uff0c\u66f4\u65b0\u6570\u636e\u5e93\u8bb0\u5f55\uff09\u3002 \u91ca\u653e\u9501\uff1a \u5f53\u4e34\u754c\u533a\u64cd\u4f5c\u5b8c\u6210\u540e\uff0c\u8fdb\u7a0b\u53ef\u4ee5\u4f7f\u7528 DEL \u547d\u4ee4\u91ca\u653e\u9501\u3002\u8be5\u547d\u4ee4\u5c06\u5220\u9664\u5bc6\u94a5\uff0c\u91ca\u653e\u9501\u3002 \u793a\u4f8b\u4ee3\u7801\uff1a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5073","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5073","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5073"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5073\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5073"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5073"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}