{"id":184916,"date":"2024-11-10T17:12:17","date_gmt":"2024-11-10T09:12:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/184916\/"},"modified":"2024-11-10T17:12:18","modified_gmt":"2024-11-10T09:12:18","slug":"%e4%bd%bf%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%ab%98%e6%95%88%e7%9a%84%e7%92%b0%e5%bc%8f%e9%9a%8a%e5%88%97%ef%bc%88redis%e7%92%b0%e5%bc%8f%e9%9a%8a%e5%88%97%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/184916\/","title":{"rendered":"\u4f7f\u7528Redis\u5be6\u73fe\u9ad8\u6548\u7684\u74b0\u5f0f\u968a\u5217\uff08redis\u74b0\u5f0f\u968a\u5217\uff09"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%ab%98%e6%95%88%e7%9a%84%e7%92%b0%e5%bc%8f%e9%9a%8a%e5%88%97%ef%bc%88redis%e7%92%b0%e5%bc%8f%e9%9a%8a%e5%88%97%ef%bc%89-NvRaShCbCI\">\u4f7f\u7528Redis\u5be6\u73fe\u9ad8\u6548\u7684\u74b0\u5f0f\u968a\u5217\uff08redis\u74b0\u5f0f\u968a\u5217\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0c\u968a\u5217\u7cfb\u7d71\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u8acb\u6c42\u548c\u6578\u64da\u6642\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u4e0d\u50c5\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9084\u80fd\u5920\u8f15\u9b06\u5be6\u73fe\u74b0\u5f0f\u968a\u5217\u7684\u529f\u80fd\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Redis\u4f86\u5be6\u73fe\u9ad8\u6548\u7684\u74b0\u5f0f\u968a\u5217\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%92%b0%e5%bc%8f%e9%9a%8a%e5%88%97%ef%bc%9f-NvRaShCbCI\">\u4ec0\u9ebc\u662f\u74b0\u5f0f\u968a\u5217\uff1f<\/h2>\n<p>\u74b0\u5f0f\u968a\u5217\uff08Circular Queue\uff09\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u968a\u5217\u7d50\u69cb\uff0c\u7576\u968a\u5217\u7684\u5c3e\u90e8\u5230\u9054\u6700\u5927\u5bb9\u91cf\u6642\uff0c\u65b0\u7684\u5143\u7d20\u5c07\u5f9e\u968a\u5217\u7684\u982d\u90e8\u958b\u59cb\u63d2\u5165\u3002\u9019\u7a2e\u7d50\u69cb\u7279\u5225\u9069\u5408\u65bc\u9700\u8981\u5faa\u74b0\u4f7f\u7528\u7684\u5834\u666f\uff0c\u4f8b\u5982\u4efb\u52d9\u8abf\u5ea6\u3001\u8cc7\u6e90\u7ba1\u7406\u7b49\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87redis%ef%bc%9f-NvRaShCbCI\">\u70ba\u4ec0\u9ebc\u9078\u64c7Redis\uff1f<\/h2>\n<p>Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u5177\u6709\u4ee5\u4e0b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u6027\uff1a<\/strong>Redis\u7684\u6578\u64da\u5b58\u5132\u5728\u5167\u5b58\u4e2d\uff0c\u8b80\u5beb\u901f\u5ea6\u6975\u5feb\u3002<\/li>\n<li><strong>\u591a\u6a23\u7684\u6578\u64da\u7d50\u69cb\uff1a<\/strong>\u652f\u6301\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9748\u6d3b\u6027\u9ad8\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\u9078\u9805\uff1a<\/strong>\u652f\u6301\u6578\u64da\u6301\u4e45\u5316\uff0c\u80fd\u5920\u5728\u91cd\u555f\u5f8c\u6062\u5fa9\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e5%af%a6%e7%8f%be%e7%92%b0%e5%bc%8f%e9%9a%8a%e5%88%97%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%80%9d%e8%b7%af-NvRaShCbCI\">\u4f7f\u7528Redis\u5be6\u73fe\u74b0\u5f0f\u968a\u5217\u7684\u57fa\u672c\u601d\u8def<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u5229\u7528\u5217\u8868\uff08List\uff09\u6578\u64da\u7d50\u69cb\u4f86\u5be6\u73fe\u74b0\u5f0f\u968a\u5217\u3002\u5177\u9ad4\u6b65\u9a5f\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u521d\u59cb\u5316\u4e00\u500b\u7a7a\u7684\u5217\u8868\u4f5c\u70ba\u968a\u5217\u3002<\/li>\n<li>\u4f7f\u7528 <code>LPUSH<\/code> \u547d\u4ee4\u5c07\u65b0\u5143\u7d20\u6dfb\u52a0\u5230\u968a\u5217\u7684\u982d\u90e8\u3002<\/li>\n<li>\u4f7f\u7528 <code>RPOP<\/code> \u547d\u4ee4\u5f9e\u968a\u5217\u7684\u5c3e\u90e8\u79fb\u9664\u5143\u7d20\u3002<\/li>\n<li>\u7576\u968a\u5217\u9054\u5230\u6700\u5927\u5bb9\u91cf\u6642\uff0c\u4f7f\u7528 <code>RPOP<\/code> \u522a\u9664\u6700\u820a\u7684\u5143\u7d20\uff0c\u4ee5\u4fdd\u6301\u968a\u5217\u7684\u5927\u5c0f\u3002<\/li>\n<\/ol>\n<h2 id=\"%e4%bb%a3%e7%a2%bc%e7%a4%ba%e4%be%8b-NvRaShCbCI\">\u4ee3\u78bc\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Python\u548cRedis\u5be6\u73fe\u74b0\u5f0f\u968a\u5217\u7684\u7c21\u55ae\u793a\u4f8b\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230Redis\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\n# \u74b0\u5f0f\u968a\u5217\u7684\u6700\u5927\u5bb9\u91cf\nMAX_SIZE = 5\n\ndef enqueue(queue_name, item):\n    # \u6dfb\u52a0\u65b0\u5143\u7d20\u5230\u968a\u5217\n    r.lpush(queue_name, item)\n    # \u6aa2\u67e5\u968a\u5217\u5927\u5c0f\uff0c\u82e5\u8d85\u904e\u6700\u5927\u5bb9\u91cf\u5247\u522a\u9664\u6700\u820a\u7684\u5143\u7d20\n    if r.llen(queue_name) &gt; MAX_SIZE:\n        r.rpop(queue_name)\n\ndef dequeue(queue_name):\n    # \u5f9e\u968a\u5217\u4e2d\u79fb\u9664\u4e26\u8fd4\u56de\u6700\u820a\u7684\u5143\u7d20\n    return r.rpop(queue_name)\n\n# \u6e2c\u8a66\u74b0\u5f0f\u968a\u5217\nqueue_name = 'my_circular_queue'\nfor i in range(10):\n    enqueue(queue_name, f'item-{i}')\n    print(f'Enqueued: item-{i}')\n\nprint('Current Queue:', r.lrange(queue_name, 0, -1))\n<\/code><\/pre>\n<h2 id=\"%e7%92%b0%e5%bc%8f%e9%9a%8a%e5%88%97%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-NvRaShCbCI\">\u74b0\u5f0f\u968a\u5217\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u74b0\u5f0f\u968a\u5217\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u80fd\u767c\u63ee\u91cd\u8981\u4f5c\u7528\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><strong>\u4efb\u52d9\u8abf\u5ea6\uff1a<\/strong>\u5728\u5f8c\u53f0\u4efb\u52d9\u8655\u7406\u4e2d\uff0c\u74b0\u5f0f\u968a\u5217\u53ef\u4ee5\u7528\u4f86\u7ba1\u7406\u5f85\u8655\u7406\u7684\u4efb\u52d9\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u7ba1\u7406\uff1a<\/strong>\u5728\u8cc7\u6e90\u5206\u914d\u4e2d\uff0c\u74b0\u5f0f\u968a\u5217\u53ef\u4ee5\u78ba\u4fdd\u8cc7\u6e90\u7684\u5faa\u74b0\u4f7f\u7528\u3002<\/li>\n<li><strong>\u6d88\u606f\u7cfb\u7d71\uff1a<\/strong>\u5728\u6d88\u606f\u50b3\u905e\u7cfb\u7d71\u4e2d\uff0c\u74b0\u5f0f\u968a\u5217\u53ef\u4ee5\u7528\u4f86\u7ba1\u7406\u6d88\u606f\u7684\u767c\u9001\u548c\u63a5\u6536\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-NvRaShCbCI\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528Redis\u5be6\u73fe\u74b0\u5f0f\u968a\u5217\u662f\u4e00\u7a2e\u9ad8\u6548\u4e14\u9748\u6d3b\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u6eff\u8db3\u591a\u7a2e\u61c9\u7528\u9700\u6c42\u3002\u901a\u904e\u7c21\u55ae\u7684\u547d\u4ee4\u548c\u4ee3\u78bc\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u7ba1\u7406\u968a\u5217\u4e2d\u7684\u6578\u64da\uff0c\u4e26\u78ba\u4fdd\u5176\u5728\u6700\u5927\u5bb9\u91cf\u4e0b\u7684\u9ad8\u6548\u904b\u884c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u65b9\u6848\u4f86\u90e8\u7f72Redis\u670d\u52d9\u5668\u5c07\u662f\u660e\u667a\u4e4b\u8209\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u5730\u5340\u7684\u670d\u52d9\u5668\uff0cServer.HK\u90fd\u80fd\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\uff0c\u52a9\u529b\u60a8\u7684\u61c9\u7528\u767c\u5c55\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528Redis\u5be6\u73fe\u9ad8\u6548\u7684\u74b0\u5f0f\u968a\u5217\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6027\u80fd\uff0c\u7c21\u5316\u4efb\u52d9\u7ba1\u7406\uff0c\u5be6\u73fe\u9ad8\u6548\u80fd\u7684\u61c9\u7528\u7a0b\u5e8f\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-184916","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184916","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=184916"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184916\/revisions"}],"predecessor-version":[{"id":184917,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184916\/revisions\/184917"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=184916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=184916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=184916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}