{"id":165403,"date":"2024-11-05T12:11:21","date_gmt":"2024-11-05T04:11:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/165403\/"},"modified":"2024-11-05T12:11:22","modified_gmt":"2024-11-05T04:11:22","slug":"%e6%8e%a7%e5%88%b6redis%e5%af%a6%e7%8f%be%e9%ab%98%e6%95%88%e5%88%86%e4%bd%88%e5%bc%8f%e6%b5%81%e6%b0%b4%e8%99%9f%e4%b8%a6%e7%99%bc%e6%8e%a7%e5%88%b6%ef%bc%88redis%e7%8d%b2%e5%8f%96%e6%b5%81%e6%b0%b4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/165403\/","title":{"rendered":"\u63a7\u5236Redis\u5be6\u73fe\u9ad8\u6548\u5206\u4f48\u5f0f\u6d41\u6c34\u865f\u4e26\u767c\u63a7\u5236\uff08redis\u7372\u53d6\u6d41\u6c34\u865f\u4e26\u767c\uff09"},"content":{"rendered":"<h1 id=\"%e6%8e%a7%e5%88%b6redis%e5%af%a6%e7%8f%be%e9%ab%98%e6%95%88%e5%88%86%e4%bd%88%e5%bc%8f%e6%b5%81%e6%b0%b4%e8%99%9f%e4%b8%a6%e7%99%bc%e6%8e%a7%e5%88%b6-xaHSpKwICK\">\u63a7\u5236Redis\u5be6\u73fe\u9ad8\u6548\u5206\u4f48\u5f0f\u6d41\u6c34\u865f\u4e26\u767c\u63a7\u5236<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u6d41\u6c34\u865f\u7684\u751f\u6210\u8207\u7ba1\u7406\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e0b\uff0c\u5982\u4f55\u6709\u6548\u5730\u63a7\u5236\u6d41\u6c34\u865f\u7684\u751f\u6210\uff0c\u907f\u514d\u91cd\u8907\u548c\u885d\u7a81\uff0c\u6210\u70ba\u4e86\u958b\u767c\u8005\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u9ad8\u6548\u7684\u6d41\u6c34\u865f\u751f\u6210\u8207\u4e26\u767c\u63a7\u5236\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%89%b9%e6%80%a7-xaHSpKwICK\">Redis\u7684\u57fa\u672c\u7279\u6027<\/h2>\n<p>Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u5167\u5b58\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u5176\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\u4f7f\u5176\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7684\u9996\u9078\u3002Redis\u7684\u539f\u5b50\u64cd\u4f5c\u7279\u6027\u4f7f\u5f97\u5b83\u5728\u8655\u7406\u4e26\u767c\u8acb\u6c42\u6642\u8868\u73fe\u51fa\u8272\uff0c\u9019\u5c0d\u65bc\u6d41\u6c34\u865f\u7684\u751f\u6210\u5c24\u70ba\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e6%b5%81%e6%b0%b4%e8%99%9f%e7%9a%84%e7%94%9f%e6%88%90%e7%ad%96%e7%95%a5-xaHSpKwICK\">\u6d41\u6c34\u865f\u7684\u751f\u6210\u7b56\u7565<\/h2>\n<p>\u5728\u4f7f\u7528Redis\u751f\u6210\u6d41\u6c34\u865f\u6642\uff0c\u5e38\u898b\u7684\u7b56\u7565\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<ul>\n<li><strong>\u81ea\u589e\u9375\uff08INCR\uff09<\/strong>\uff1a\u4f7f\u7528Redis\u7684INCR\u547d\u4ee4\u53ef\u4ee5\u5be6\u73fe\u81ea\u52d5\u905e\u589e\u7684\u6d41\u6c34\u865f\u751f\u6210\u3002<\/li>\n<li><strong>\u5206\u5e03\u5f0f\u9396<\/strong>\uff1a\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528Redis\u7684SETNX\u547d\u4ee4\u4f86\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\uff0c\u78ba\u4fdd\u540c\u4e00\u6642\u9593\u53ea\u6709\u4e00\u500b\u8acb\u6c42\u80fd\u5920\u751f\u6210\u6d41\u6c34\u865f\u3002<\/li>\n<li><strong>\u6642\u9593\u6233\u7d50\u5408\u81ea\u589e<\/strong>\uff1a\u5c07\u7576\u524d\u6642\u9593\u6233\u8207\u81ea\u589e\u6d41\u6c34\u865f\u7d50\u5408\uff0c\u751f\u6210\u552f\u4e00\u7684\u6d41\u6c34\u865f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8incr%e5%91%bd%e4%bb%a4%e7%94%9f%e6%88%90%e6%b5%81%e6%b0%b4%e8%99%9f-xaHSpKwICK\">\u4f7f\u7528INCR\u547d\u4ee4\u751f\u6210\u6d41\u6c34\u865f<\/h2>\n<p>\u6700\u7c21\u55ae\u7684\u6d41\u6c34\u865f\u751f\u6210\u65b9\u5f0f\u662f\u4f7f\u7528Redis\u7684INCR\u547d\u4ee4\u3002\u9019\u500b\u547d\u4ee4\u6703\u5c0d\u6307\u5b9a\u7684\u9375\u9032\u884c\u81ea\u589e\u64cd\u4f5c\uff0c\u4e26\u8fd4\u56de\u81ea\u589e\u5f8c\u7684\u503c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SETNX order:seq 0  \/\/ \u521d\u59cb\u5316\u6d41\u6c34\u865f\nINCR order:seq      \/\/ \u7372\u53d6\u65b0\u7684\u6d41\u6c34\u865f\n<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u6bcf\u6b21\u8abf\u7528INCR\u547d\u4ee4\u6642\uff0cRedis\u6703\u81ea\u52d5\u5c07order:seq\u7684\u503c\u52a01\uff0c\u4e26\u8fd4\u56de\u65b0\u7684\u6d41\u6c34\u865f\u3002\u9019\u7a2e\u65b9\u6cd5\u7c21\u55ae\u9ad8\u6548\uff0c\u4f46\u5728\u9ad8\u4e26\u767c\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u6027\u80fd\u74f6\u9838\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e6%8e%a7%e5%88%b6%e4%b8%a6%e7%99%bc-xaHSpKwICK\">\u4f7f\u7528\u5206\u5e03\u5f0f\u9396\u63a7\u5236\u4e26\u767c<\/h2>\n<p>\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u70ba\u4e86\u907f\u514d\u591a\u500b\u8acb\u6c42\u540c\u6642\u751f\u6210\u76f8\u540c\u7684\u6d41\u6c34\u865f\uff0c\u53ef\u4ee5\u4f7f\u7528\u5206\u5e03\u5f0f\u9396\u4f86\u63a7\u5236\u4e26\u767c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528SETNX\u547d\u4ee4\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SETNX lock:order 1  \/\/ \u5617\u8a66\u7372\u53d6\u9396\nEXPIRE lock:order 5  \/\/ \u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\n\n\/\/ \u7372\u53d6\u6d41\u6c34\u865f\nINCR order:seq\n\n\/\/ \u91cb\u653e\u9396\nDEL lock:order\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0cSETNX\u547d\u4ee4\u7528\u65bc\u5617\u8a66\u7372\u53d6\u9396\uff0c\u5982\u679c\u6210\u529f\u5247\u57f7\u884c\u6d41\u6c34\u865f\u7684\u751f\u6210\uff0c\u6700\u5f8c\u91cb\u653e\u9396\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u907f\u514d\u4e26\u767c\u8acb\u6c42\u5c0e\u81f4\u7684\u6d41\u6c34\u865f\u91cd\u8907\u554f\u984c\u3002<\/p>\n<h2 id=\"%e6%99%82%e9%96%93%e6%88%b3%e7%b5%90%e5%90%88%e8%87%aa%e5%a2%9e%e7%9a%84%e6%b5%81%e6%b0%b4%e8%99%9f%e7%94%9f%e6%88%90-xaHSpKwICK\">\u6642\u9593\u6233\u7d50\u5408\u81ea\u589e\u7684\u6d41\u6c34\u865f\u751f\u6210<\/h2>\n<p>\u53e6\u4e00\u7a2e\u751f\u6210\u552f\u4e00\u6d41\u6c34\u865f\u7684\u65b9\u6cd5\u662f\u5c07\u7576\u524d\u6642\u9593\u6233\u8207\u81ea\u589e\u6d41\u6c34\u865f\u7d50\u5408\u3002\u9019\u6a23\u53ef\u4ee5\u4fdd\u8b49\u5373\u4f7f\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u751f\u6210\u7684\u6d41\u6c34\u865f\u4e5f\u662f\u552f\u4e00\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>SETNX order:seq 0\nINCR order:seq\ncurrent_time = TIME()  \/\/ \u7372\u53d6\u7576\u524d\u6642\u9593\u6233\nunique_id = current_time + \"-\" + order:seq\n<\/code><\/pre>\n<p>\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u80fd\u5920\u4fdd\u8b49\u6d41\u6c34\u865f\u7684\u552f\u4e00\u6027\uff0c\u9084\u80fd\u5920\u63d0\u4f9b\u6642\u9593\u4fe1\u606f\uff0c\u65b9\u4fbf\u5f8c\u7e8c\u7684\u67e5\u8a62\u548c\u7ba1\u7406\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-xaHSpKwICK\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u9ad8\u4e26\u767c\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u4f7f\u7528Redis\u4f86\u63a7\u5236\u6d41\u6c34\u865f\u7684\u751f\u6210\u662f\u4e00\u500b\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u4f7f\u7528INCR\u547d\u4ee4\u3001\u5206\u5e03\u5f0f\u9396\u4ee5\u53ca\u6642\u9593\u6233\u7d50\u5408\u81ea\u589e\u7684\u7b56\u7565\uff0c\u53ef\u4ee5\u5be6\u73fe\u9ad8\u6548\u4e14\u5b89\u5168\u7684\u6d41\u6c34\u865f\u751f\u6210\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u63d0\u9ad8\u4e86\u7cfb\u7d71\u7684\u6027\u80fd\uff0c\u9084\u80fd\u5920\u6709\u6548\u907f\u514d\u6578\u64da\u885d\u7a81\u554f\u984c\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u7ba1\u7406\u60a8\u7684\u6578\u64da\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684Redis\u670d\u52d9\uff0c\u4eab\u53d7\u66f4\u9ad8\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5229\u7528Redis\u5be6\u73fe\u9ad8\u6548\u7684\u5206\u4f48\u5f0f\u6d41\u6c34\u865f\u751f\u6210\u8207\u4e26\u767c\u63a7\u5236\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u7a69\u5b9a\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-165403","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/165403","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=165403"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/165403\/revisions"}],"predecessor-version":[{"id":165404,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/165403\/revisions\/165404"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=165403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=165403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=165403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}