{"id":5825,"date":"2024-11-14T12:06:30","date_gmt":"2024-11-14T04:06:30","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5825\/"},"modified":"2024-11-14T12:06:30","modified_gmt":"2024-11-14T04:06:30","slug":"redis%e6%80%8e%e4%b9%88%e4%bd%bf%e7%94%a8%e9%94%81","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5825\/","title":{"rendered":"redis\u600e\u4e48\u4f7f\u7528\u9501"},"content":{"rendered":"<blockquote><p>\n  \u4f7f\u7528redis\u8fdb\u884c\u9501\u64cd\u4f5c\u9700\u8981\u901a\u8fc7setnx\u547d\u4ee4\u83b7\u53d6\u9501\uff0c\u7136\u540e\u4f7f\u7528expire\u547d\u4ee4\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u3002\u5177\u4f53\u6b65\u9aa4\u4e3a\uff1a(1) \u4f7f\u7528setnx\u547d\u4ee4\u5c1d\u8bd5\u8bbe\u7f6e\u4e00\u4e2a\u952e\u503c\u5bf9\uff1b(2) \u4f7f\u7528expire\u547d\u4ee4\u4e3a\u9501\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff1b(3) \u5f53\u4e0d\u518d\u9700\u8981\u9501\u65f6\uff0c\u4f7f\u7528del\u547d\u4ee4\u5220\u9664\u8be5\u9501\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202406\/03\/2024060320153489927.jpg\" class=\"aligncenter\" title=\"redis\u600e\u4e48\u4f7f\u7528\u9501\u63d2\u56fe\" alt=\"redis\u600e\u4e48\u4f7f\u7528\u9501\u63d2\u56fe\" \/><\/p>\n<p><strong>Redis\u4e2d\u4f7f\u7528\u9501<\/strong><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528Redis\u8fdb\u884c\u9501\u64cd\u4f5c\uff1f<\/strong><\/p>\n<p>\u4f7f\u7528Redis\u8fdb\u884c\u9501\u64cd\u4f5c\u4e3b\u8981\u901a\u8fc7\u4f7f\u7528SETNX\u547d\u4ee4\u548cEXPIRE\u547d\u4ee4\u5b9e\u73b0\u3002<\/p>\n<p><strong>\u8be6\u7ec6\u6b65\u9aa4\uff1a<\/strong><\/p>\n<ol>\n<li> <strong>\u83b7\u53d6\u9501\uff1a<\/strong>\u4f7f\u7528SETNX\u547d\u4ee4\u5c1d\u8bd5\u8bbe\u7f6e\u4e00\u4e2a\u5e26\u6709\u7279\u5b9a\u952e\u548c\u503c\u7684\u3002\u5982\u679c\u8be5\u952e\u4e0d\u5b58\u5728\uff0c\u5219\u8be5\u547d\u4ee4\u4f1a\u8fd4\u56de1\uff0c\u8868\u793a\u9501\u83b7\u53d6\u6210\u529f\uff1b\u5982\u679c\u8be5\u952e\u5df2\u5b58\u5728\uff0c\u5219\u8fd4\u56de0\uff0c\u8868\u793a\u9501\u5df2\u88ab\u5176\u4ed6\u5ba2\u6237\u7aef\u83b7\u53d6\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n<pre>SETNX my_lock my_unique_value<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ol>\n<li> <strong>\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff1a<\/strong>\u4f7f\u7528EXPIRE\u547d\u4ee4\u4e3a\u83b7\u53d6\u5230\u7684\u9501\u8bbe\u7f6e\u4e00\u4e2a\u8fc7\u671f\u65f6\u95f4\u3002\u8fd9\u6837\u505a\u662f\u4e3a\u4e86\u9632\u6b62\u56e0\u5ba2\u6237\u7aef\u610f\u5916\u9000\u51fa\u6216\u5d29\u6e83\u800c\u5bfc\u81f4\u6b7b\u9501\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n<pre>EXPIRE my_lock 30<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ol>\n<li> <strong>\u91ca\u653e\u9501\uff1a<\/strong>\u5f53\u5ba2\u6237\u7aef\u4e0d\u518d\u9700\u8981\u9501\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528DEL\u547d\u4ee4\u5220\u9664\u8be5\u9501\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n<pre>DEL 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>SETNX\u548cEXPIRE\u547d\u4ee4\u5fc5\u987b\u5728\u540c\u4e00\u4e8b\u52a1\u4e2d\u6267\u884c\uff0c\u4ee5\u786e\u4fdd\u539f\u5b50\u6027\u3002<\/li>\n<li>\u9501\u7684\u8fc7\u671f\u65f6\u95f4\u5e94\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8bbe\u5b9a\uff0c\u65e2\u80fd\u9632\u6b62\u6b7b\u9501\uff0c\u53c8\u80fd\u6700\u5927\u9650\u5ea6\u5730\u5229\u7528\u8d44\u6e90\u3002<\/li>\n<li>\u4f7f\u7528\u5206\u5e03\u5f0f\u9501\u65f6\uff0c\u5fc5\u987b\u8003\u8651\u4e0d\u540c\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u65f6\u949f\u504f\u5dee\u95ee\u9898\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u5177\u6709\u4e3b\u4ece\u590d\u5236\u529f\u80fd\u7684Redis\u96c6\u7fa4\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u4f7f\u7528\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>\u4f7f\u7528redis\u8fdb\u884c\u9501\u64cd\u4f5c\u9700\u8981\u901a\u8fc7setnx\u547d\u4ee4\u83b7\u53d6\u9501\uff0c\u7136\u540e\u4f7f\u7528expire\u547d\u4ee4\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u3002\u5177\u4f53\u6b65\u9aa4\u4e3a\uff1a(1) \u4f7f\u7528setnx\u547d\u4ee4\u5c1d\u8bd5\u8bbe\u7f6e\u4e00\u4e2a\u952e\u503c\u5bf9\uff1b(2) \u4f7f\u7528expire\u547d\u4ee4\u4e3a\u9501\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff1b(3) \u5f53\u4e0d\u518d\u9700\u8981\u9501\u65f6\uff0c\u4f7f\u7528del\u547d\u4ee4\u5220\u9664\u8be5\u9501\u3002 Redis\u4e2d\u4f7f\u7528\u9501 \u5982\u4f55\u4f7f\u7528Redis\u8fdb\u884c\u9501\u64cd\u4f5c\uff1f \u4f7f\u7528Redis\u8fdb\u884c\u9501\u64cd\u4f5c\u4e3b\u8981\u901a\u8fc7\u4f7f\u7528SETNX\u547d\u4ee4\u548cEXPIRE\u547d\u4ee4\u5b9e\u73b0\u3002 \u8be6\u7ec6\u6b65\u9aa4\uff1a \u83b7\u53d6\u9501\uff1a\u4f7f\u7528SETNX\u547d\u4ee4\u5c1d\u8bd5\u8bbe\u7f6e\u4e00\u4e2a\u5e26\u6709\u7279\u5b9a\u952e\u548c\u503c\u7684\u3002\u5982\u679c\u8be5\u952e\u4e0d\u5b58\u5728\uff0c\u5219\u8be5\u547d\u4ee4\u4f1a\u8fd4\u56de1\uff0c\u8868\u793a\u9501\u83b7\u53d6\u6210\u529f\uff1b\u5982\u679c\u8be5\u952e\u5df2\u5b58\u5728\uff0c\u5219\u8fd4\u56de0\uff0c\u8868\u793a\u9501\u5df2\u88ab\u5176\u4ed6\u5ba2\u6237\u7aef\u83b7\u53d6\u3002\u4f8b\u5982\uff1a SETNX my_lock my_unique_value \u767b\u5f55\u540e\u590d\u5236 \u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff1a\u4f7f\u7528EXPIRE\u547d\u4ee4\u4e3a\u83b7\u53d6\u5230\u7684\u9501\u8bbe\u7f6e\u4e00\u4e2a\u8fc7\u671f\u65f6\u95f4\u3002\u8fd9\u6837\u505a\u662f\u4e3a\u4e86\u9632\u6b62\u56e0\u5ba2\u6237\u7aef\u610f\u5916\u9000\u51fa\u6216\u5d29\u6e83\u800c\u5bfc\u81f4\u6b7b\u9501\u3002\u4f8b\u5982\uff1a EXPIRE my_lock 30 \u767b\u5f55\u540e\u590d\u5236 \u91ca\u653e\u9501\uff1a\u5f53\u5ba2\u6237\u7aef\u4e0d\u518d\u9700\u8981\u9501\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528DEL\u547d\u4ee4\u5220\u9664\u8be5\u9501\u3002\u4f8b\u5982\uff1a DEL my_lock \u767b\u5f55\u540e\u590d\u5236 \u6ce8\u610f\u4e8b\u9879\uff1a SETNX\u548cEXPIRE\u547d\u4ee4\u5fc5\u987b\u5728\u540c\u4e00\u4e8b\u52a1\u4e2d\u6267\u884c\uff0c\u4ee5\u786e\u4fdd\u539f\u5b50\u6027\u3002 \u9501\u7684\u8fc7\u671f\u65f6\u95f4\u5e94\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8bbe\u5b9a\uff0c\u65e2\u80fd\u9632\u6b62\u6b7b\u9501\uff0c\u53c8\u80fd\u6700\u5927\u9650\u5ea6\u5730\u5229\u7528\u8d44\u6e90\u3002 \u4f7f\u7528\u5206\u5e03\u5f0f\u9501\u65f6\uff0c\u5fc5\u987b\u8003\u8651\u4e0d\u540c\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u65f6\u949f\u504f\u5dee\u95ee\u9898\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u5177\u6709\u4e3b\u4ece\u590d\u5236\u529f\u80fd\u7684Redis\u96c6\u7fa4\u3002 \u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u4f7f\u7528\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},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5825","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5825","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=5825"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5825\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5825"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5825"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5825"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}