{"id":134633,"date":"2024-10-31T01:47:19","date_gmt":"2024-10-30T17:47:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/134633\/"},"modified":"2024-10-31T01:47:19","modified_gmt":"2024-10-30T17:47:19","slug":"redis%e6%ba%90%e7%a2%bc%e6%b7%ba%e6%9e%90%e5%be%9e%e6%ba%90%e9%a0%ad%e6%8e%a2%e7%a9%b6redis%e9%81%8b%e8%a1%8c%e5%8e%9f%e7%90%86%ef%bc%88redis%e6%ba%90%e7%a2%bc%e7%b0%a1%e8%a6%81%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/134633\/","title":{"rendered":"Redis\u6e90\u78bc\u6dfa\u6790\u5f9e\u6e90\u982d\u63a2\u7a76Redis\u904b\u884c\u539f\u7406\uff08redis\u6e90\u78bc\u7c21\u8981\u5206\u6790\uff09"},"content":{"rendered":"<h1 id=\"redis%e6%ba%90%e7%a2%bc%e6%b7%ba%e6%9e%90%ef%bc%9a%e5%be%9e%e6%ba%90%e9%a0%ad%e6%8e%a2%e7%a9%b6redis%e9%81%8b%e8%a1%8c%e5%8e%9f%e7%90%86-gPBNRqBQHp\">Redis\u6e90\u78bc\u6dfa\u6790\uff1a\u5f9e\u6e90\u982d\u63a2\u7a76Redis\u904b\u884c\u539f\u7406<\/h1>\n<p>Redis\u662f\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u5834\u666f\u3002\u5176\u6e90\u78bc\u7d50\u69cb\u6e05\u6670\uff0c\u904b\u884c\u539f\u7406\u7c21\u55ae\u660e\u77ad\uff0c\u9019\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u8f15\u9b06\u7406\u89e3\u5176\u5167\u90e8\u904b\u4f5c\u3002\u672c\u6587\u5c07\u5c0dRedis\u7684\u6e90\u78bc\u9032\u884c\u7c21\u8981\u5206\u6790\uff0c\u5e6b\u52a9\u8b80\u8005\u6df1\u5165\u4e86\u89e3\u5176\u904b\u884c\u539f\u7406\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%9e%b6%e6%a7%8b-gPBNRqBQHp\">Redis\u7684\u57fa\u672c\u67b6\u69cb<\/h2>\n<p>Redis\u7684\u6e90\u78bc\u4e3b\u8981\u7531\u4ee5\u4e0b\u5e7e\u500b\u90e8\u5206\u7d44\u6210\uff1a<\/p>\n<ul>\n<li><strong>\u6838\u5fc3\u6578\u64da\u7d50\u69cb\uff1a<\/strong>Redis\u4f7f\u7528\u591a\u7a2e\u6578\u64da\u7d50\u69cb\u4f86\u5b58\u5132\u6578\u64da\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u7b49\u3002<\/li>\n<li><strong>\u4e8b\u4ef6\u9a45\u52d5\u6a21\u578b\uff1a<\/strong>Redis\u63a1\u7528\u4e8b\u4ef6\u9a45\u52d5\u7684I\/O\u6a21\u578b\uff0c\u9019\u4f7f\u5f97\u5b83\u80fd\u5920\u9ad8\u6548\u5730\u8655\u7406\u5927\u91cf\u7684\u4e26\u767c\u8acb\u6c42\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\u6a5f\u5236\uff1a<\/strong>Redis\u652f\u6301RDB\u548cAOF\u5169\u7a2e\u6301\u4e45\u5316\u65b9\u5f0f\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u53ef\u9760\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"redis%e7%9a%84%e9%81%8b%e8%a1%8c%e5%8e%9f%e7%90%86-gPBNRqBQHp\">Redis\u7684\u904b\u884c\u539f\u7406<\/h2>\n<p>Redis\u7684\u904b\u884c\u539f\u7406\u53ef\u4ee5\u5f9e\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\u9032\u884c\u5206\u6790\uff1a<\/p>\n<h3 id=\"1-%e4%ba%8b%e4%bb%b6%e5%be%aa%e7%92%b0-gPBNRqBQHp\">1. \u4e8b\u4ef6\u5faa\u74b0<\/h3>\n<p>Redis\u7684\u4e8b\u4ef6\u5faa\u74b0\u662f\u5176\u9ad8\u6027\u80fd\u7684\u6838\u5fc3\u3002\u5b83\u4f7f\u7528\u4e86<a href=\"https:\/\/redis.io\/topics\/notifications\" rel=\"nofollow noopener\" target=\"_blank\">epoll<\/a>\u6216<a href=\"https:\/\/redis.io\/topics\/notifications\" rel=\"nofollow noopener\" target=\"_blank\">select<\/a>\u7b49\u7cfb\u7d71\u8abf\u7528\u4f86\u76e3\u63a7\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u8b8a\u5316\u3002\u7576\u6709\u5ba2\u6236\u7aef\u8acb\u6c42\u5230\u4f86\u6642\uff0cRedis\u6703\u5c07\u8acb\u6c42\u653e\u5165\u4e8b\u4ef6\u968a\u5217\u4e2d\uff0c\u7136\u5f8c\u901a\u904e\u4e8b\u4ef6\u5faa\u74b0\u9032\u884c\u8655\u7406\u3002<\/p>\n<pre><code>while (1) {\n    \/\/ \u7b49\u5f85\u4e8b\u4ef6\u767c\u751f\n    aeProcessEvents(eventLoop);\n    \/\/ \u8655\u7406\u4e8b\u4ef6\n    processEvents();\n}<\/code><\/pre>\n<h3 id=\"2-%e5%91%bd%e4%bb%a4%e8%99%95%e7%90%86-gPBNRqBQHp\">2. \u547d\u4ee4\u8655\u7406<\/h3>\n<p>\u7576Redis\u63a5\u6536\u5230\u5ba2\u6236\u7aef\u7684\u8acb\u6c42\u5f8c\uff0c\u6703\u6839\u64da\u8acb\u6c42\u7684\u547d\u4ee4\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002\u6bcf\u500b\u547d\u4ee4\u90fd\u5c0d\u61c9\u4e00\u500b\u8655\u7406\u51fd\u6578\uff0c\u9019\u4e9b\u51fd\u6578\u88ab\u8a3b\u518a\u5728\u4e00\u500b\u547d\u4ee4\u8868\u4e2d\u3002\u7576\u547d\u4ee4\u88ab\u89e3\u6790\u5f8c\uff0cRedis\u6703\u8abf\u7528\u76f8\u61c9\u7684\u8655\u7406\u51fd\u6578\u4f86\u57f7\u884c\u547d\u4ee4\u3002<\/p>\n<pre><code>if (strcmp(command, \"SET\") == 0) {\n    handleSetCommand();\n} else if (strcmp(command, \"GET\") == 0) {\n    handleGetCommand();\n}<\/code><\/pre>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2-gPBNRqBQHp\">3. \u6578\u64da\u5b58\u5132<\/h3>\n<p>Redis\u4f7f\u7528\u4e00\u500b\u540d\u70ba<a href=\"https:\/\/redis.io\/topics\/data-types\" rel=\"nofollow noopener\" target=\"_blank\">dict<\/a>\u7684\u54c8\u5e0c\u8868\u4f86\u5b58\u5132\u9375\u503c\u5c0d\u3002\u9019\u500b\u54c8\u5e0c\u8868\u7684\u8a2d\u8a08\u4f7f\u5f97\u67e5\u627e\u3001\u63d2\u5165\u548c\u522a\u9664\u64cd\u4f5c\u90fd\u80fd\u5728\u5e38\u6578\u6642\u9593\u5167\u5b8c\u6210\u3002\u7576\u6578\u64da\u91cf\u589e\u5927\u6642\uff0cRedis\u6703\u81ea\u52d5\u64f4\u5c55\u54c8\u5e0c\u8868\u7684\u5927\u5c0f\uff0c\u4ee5\u4fdd\u6301\u9ad8\u6548\u7684\u6027\u80fd\u3002<\/p>\n<pre><code>dictExpandIfNeeded(dict);\ndictAdd(dict, key, value);<\/code><\/pre>\n<h3 id=\"4-%e6%8c%81%e4%b9%85%e5%8c%96-gPBNRqBQHp\">4. \u6301\u4e45\u5316<\/h3>\n<p>Redis\u63d0\u4f9b\u4e86\u5169\u7a2e\u6301\u4e45\u5316\u65b9\u5f0f\uff1aRDB\u548cAOF\u3002RDB\u6703\u5b9a\u671f\u5c07\u6578\u64da\u5feb\u7167\u4fdd\u5b58\u5230\u78c1\u789f\uff0c\u800cAOF\u5247\u6703\u5c07\u6bcf\u500b\u5beb\u64cd\u4f5c\u8a18\u9304\u5230\u65e5\u8a8c\u6587\u4ef6\u4e2d\u3002\u9019\u5169\u7a2e\u65b9\u5f0f\u5404\u6709\u512a\u7f3a\u9ede\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u5be6\u969b\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6301\u4e45\u5316\u7b56\u7565\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-gPBNRqBQHp\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u5c0dRedis\u6e90\u78bc\u7684\u7c21\u8981\u5206\u6790\uff0c\u6211\u5011\u53ef\u4ee5\u770b\u5230\u5176\u9ad8\u6548\u7684\u4e8b\u4ef6\u9a45\u52d5\u6a21\u578b\u3001\u9748\u6d3b\u7684\u547d\u4ee4\u8655\u7406\u6a5f\u5236\u4ee5\u53ca\u9ad8\u6027\u80fd\u7684\u6578\u64da\u5b58\u5132\u7d50\u69cb\u3002\u9019\u4e9b\u7279\u6027\u4f7f\u5f97Redis\u6210\u70ba\u4e00\u500b\u7406\u60f3\u7684\u9078\u64c7\uff0c\u9069\u5408\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u5834\u666f\u3002\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u9805\u76ee\u4e2d\u4f7f\u7528Redis\u6709\u8208\u8da3\uff0c\u6216\u8005\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u5206\u6790Redis\u6e90\u78bc\uff0c\u63a2\u7a76\u5176\u904b\u884c\u539f\u7406\uff0c\u63ed\u793aRedis\u7684\u8a2d\u8a08\u7406\u5ff5\u8207\u6027\u80fd\u512a\u5316\uff0c\u52a9\u529b\u958b\u767c\u8005\u7406\u89e3\u5176\u6838\u5fc3\u67b6\u69cb\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-134633","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/134633","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=134633"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/134633\/revisions"}],"predecessor-version":[{"id":134634,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/134633\/revisions\/134634"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=134633"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=134633"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=134633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}