{"id":99056,"date":"2024-10-21T07:46:17","date_gmt":"2024-10-20T23:46:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/99056\/"},"modified":"2024-10-21T07:46:18","modified_gmt":"2024-10-20T23:46:18","slug":"redis-%e9%9a%8a%e5%88%97%e5%af%a6%e7%8f%be%e5%a4%a7%e6%89%b9%e9%87%8f%e5%bd%88%e5%87%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/99056\/","title":{"rendered":"Redis \u968a\u5217\u5be6\u73fe\u5927\u6279\u91cf\u5f48\u51fa"},"content":{"rendered":"<h1 id=\"redis-%e9%9a%8a%e5%88%97%e5%af%a6%e7%8f%be%e5%a4%a7%e6%89%b9%e9%87%8f%e5%bd%88%e5%87%ba-qKLdsqlPIF\">Redis \u968a\u5217\u5be6\u73fe\u5927\u6279\u91cf\u5f48\u51fa<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u5feb\u901f\u4e14\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u662f\u4f01\u696d\u6210\u529f\u7684\u95dc\u9375\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5176\u4e2d\u968a\u5217\uff08List\uff09\u662f\u4e00\u500b\u975e\u5e38\u5e38\u7528\u7684\u7d50\u69cb\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 Redis \u4e2d\u5be6\u73fe\u5927\u6279\u91cf\u5f48\u51fa\u64cd\u4f5c\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"redis-%e9%9a%8a%e5%88%97%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-qKLdsqlPIF\">Redis \u968a\u5217\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u968a\u5217\u662f\u4e00\u7a2e\u6709\u5e8f\u7684\u6578\u64da\u7d50\u69cb\uff0c\u652f\u6301\u5f9e\u5169\u7aef\u9032\u884c\u63d2\u5165\u548c\u522a\u9664\u64cd\u4f5c\u3002\u968a\u5217\u7684\u57fa\u672c\u64cd\u4f5c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>LPUSH<\/code>\uff1a\u5c07\u4e00\u500b\u6216\u591a\u500b\u503c\u63d2\u5165\u5230\u5217\u8868\u7684\u5de6\u5074\u3002<\/li>\n<li><code>RPUSH<\/code>\uff1a\u5c07\u4e00\u500b\u6216\u591a\u500b\u503c\u63d2\u5165\u5230\u5217\u8868\u7684\u53f3\u5074\u3002<\/li>\n<li><code>LPOP<\/code>\uff1a\u79fb\u9664\u4e26\u8fd4\u56de\u5217\u8868\u7684\u5de6\u5074\u7b2c\u4e00\u500b\u5143\u7d20\u3002<\/li>\n<li><code>RPOP<\/code>\uff1a\u79fb\u9664\u4e26\u8fd4\u56de\u5217\u8868\u7684\u53f3\u5074\u7b2c\u4e00\u500b\u5143\u7d20\u3002<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u64cd\u4f5c\u4f7f\u5f97 Redis \u7684\u968a\u5217\u975e\u5e38\u9069\u5408\u7528\u65bc\u4efb\u52d9\u6392\u968a\u3001\u6d88\u606f\u50b3\u905e\u7b49\u5834\u666f\u3002<\/p>\n<h2 id=\"%e5%a4%a7%e6%89%b9%e9%87%8f%e5%bd%88%e5%87%ba%e6%93%8d%e4%bd%9c%e7%9a%84%e9%9c%80%e6%b1%82-qKLdsqlPIF\">\u5927\u6279\u91cf\u5f48\u51fa\u64cd\u4f5c\u7684\u9700\u6c42<\/h2>\n<p>\u5728\u67d0\u4e9b\u61c9\u7528\u5834\u666f\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u4e00\u6b21\u6027\u5f48\u51fa\u591a\u500b\u5143\u7d20\uff0c\u4f8b\u5982\u8655\u7406\u6279\u91cf\u4efb\u52d9\u6216\u6d88\u606f\u3002\u9019\u6642\uff0c\u4f7f\u7528\u55ae\u500b <code>LPOP<\/code> \u6216 <code>RPOP<\/code> \u9032\u884c\u591a\u6b21\u64cd\u4f5c\u6703\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\u3002\u56e0\u6b64\uff0cRedis \u63d0\u4f9b\u4e86 <code>LRANGE<\/code> \u548c <code>DEL<\/code> \u7684\u7d44\u5408\u4f86\u5be6\u73fe\u5927\u6279\u91cf\u5f48\u51fa\u3002<\/p>\n<h2 id=\"%e5%af%a6%e7%8f%be%e5%a4%a7%e6%89%b9%e9%87%8f%e5%bd%88%e5%87%ba-qKLdsqlPIF\">\u5be6\u73fe\u5927\u6279\u91cf\u5f48\u51fa<\/h2>\n<p>\u4ee5\u4e0b\u662f\u5be6\u73fe\u5927\u6279\u91cf\u5f48\u51fa\u7684\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528 <code>LRANGE<\/code> \u7372\u53d6\u9700\u8981\u5f48\u51fa\u7684\u5143\u7d20\u3002<\/li>\n<li>\u4f7f\u7528 <code>DEL<\/code> \u522a\u9664\u9019\u4e9b\u5143\u7d20\u3002<\/li>\n<\/ol>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\u4ee3\u78bc\uff0c\u5c55\u793a\u5982\u4f55\u5728 Redis \u4e2d\u5be6\u73fe\u5927\u6279\u91cf\u5f48\u51fa\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230 Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u5047\u8a2d\u6211\u5011\u7684\u968a\u5217\u540d\u7a31\u70ba 'myqueue'\nqueue_name = 'myqueue'\n\n# \u7372\u53d6\u9700\u8981\u5f48\u51fa\u7684\u5143\u7d20\u6578\u91cf\nnum_to_pop = 10\n\n# \u7372\u53d6\u5143\u7d20\nelements = r.lrange(queue_name, 0, num_to_pop - 1)\n\n# \u522a\u9664\u5143\u7d20\nif elements:\n    r.ltrim(queue_name, num_to_pop, -1)\n\n# \u8f38\u51fa\u5f48\u51fa\u7684\u5143\u7d20\nprint(\"\u5f48\u51fa\u7684\u5143\u7d20:\", elements)\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u4f7f\u7528 <code>LRANGE<\/code> \u7372\u53d6\u968a\u5217\u4e2d\u7684\u524d\u5341\u500b\u5143\u7d20\uff0c\u7136\u5f8c\u4f7f\u7528 <code>LTRIM<\/code> \u522a\u9664\u9019\u4e9b\u5143\u7d20\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u5be6\u73fe\u5927\u6279\u91cf\u5f48\u51fa\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e6%80%a7%e8%83%bd%e8%80%83%e9%87%8f-qKLdsqlPIF\">\u6027\u80fd\u8003\u91cf<\/h2>\n<p>\u5728\u9032\u884c\u5927\u6279\u91cf\u5f48\u51fa\u64cd\u4f5c\u6642\uff0c\u6027\u80fd\u662f\u9700\u8981\u8003\u616e\u7684\u91cd\u8981\u56e0\u7d20\u3002\u4f7f\u7528 <code>LRANGE<\/code> \u548c <code>LTRIM<\/code> \u7684\u7d44\u5408\u53ef\u4ee5\u6e1b\u5c11\u591a\u6b21\u7db2\u7d61\u8acb\u6c42\u7684\u958b\u92b7\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002\u7136\u800c\uff0c\u7576\u968a\u5217\u4e2d\u7684\u5143\u7d20\u6578\u91cf\u975e\u5e38\u9f90\u5927\u6642\uff0c\u4ecd\u7136\u9700\u8981\u6ce8\u610f\u5167\u5b58\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u907f\u514d\u56e0\u70ba\u4e00\u6b21\u6027\u5f48\u51fa\u904e\u591a\u5143\u7d20\u800c\u5c0e\u81f4\u7684\u6027\u80fd\u4e0b\u964d\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-qKLdsqlPIF\">\u7e3d\u7d50<\/h2>\n<p>Redis \u968a\u5217\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9ad8\u6548\u7684\u65b9\u5f0f\u4f86\u8655\u7406\u6578\u64da\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5927\u6279\u91cf\u5f48\u51fa\u5143\u7d20\u7684\u5834\u666f\u4e2d\u3002\u901a\u904e\u4f7f\u7528 <code>LRANGE<\/code> \u548c <code>LTRIM<\/code> \u7684\u7d44\u5408\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5be6\u73fe\u9019\u4e00\u9700\u6c42\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\u548c\u64cd\u4f5c\u65b9\u5f0f\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 Redis \u5be6\u4f8b\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528 Redis \u968a\u5217\u9ad8\u6548\u5be6\u73fe\u5927\u6279\u91cf\u5f48\u51fa\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6027\u80fd\u8207\u6548\u7387\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-99056","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/99056","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=99056"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/99056\/revisions"}],"predecessor-version":[{"id":99057,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/99056\/revisions\/99057"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=99056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=99056"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=99056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}