{"id":129761,"date":"2024-10-27T00:10:20","date_gmt":"2024-10-26T16:10:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129761\/"},"modified":"2024-10-27T00:10:21","modified_gmt":"2024-10-26T16:10:21","slug":"redis%e6%9c%aa%e6%89%be%e5%88%b0%e5%8c%b9%e9%85%8d%e7%9a%84key%ef%bc%88redis%e6%b2%92%e6%9c%89key%e8%bf%94%e5%9b%9e%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129761\/","title":{"rendered":"Redis\u672a\u627e\u5230\u5339\u914d\u7684Key\uff08redis\u6c92\u6709key\u8fd4\u56de\uff09"},"content":{"rendered":"<h1 id=\"redis%e6%9c%aa%e6%89%be%e5%88%b0%e5%8c%b9%e9%85%8d%e7%9a%84key%ef%bc%88redis%e6%b2%92%e6%9c%89key%e8%bf%94%e5%9b%9e%ef%bc%89-ytLOqsNUDI\">Redis\u672a\u627e\u5230\u5339\u914d\u7684Key\uff08Redis\u6c92\u6709Key\u8fd4\u56de\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u5b83\u7684\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\u4f7f\u5176\u6210\u70ba\u958b\u767c\u8005\u7684\u9996\u9078\u3002\u7136\u800c\uff0c\u5728\u4f7f\u7528Redis\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u201c\u672a\u627e\u5230\u5339\u914d\u7684Key\u201d\u7684\u60c5\u6cc1\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u4e00\u554f\u984c\u7684\u539f\u56e0\u53ca\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-ytLOqsNUDI\">Redis\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis\u662f\u4e00\u7a2e\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\u5b83\u7684\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u9ad8\u6027\u80fd\uff1aRedis\u80fd\u5920\u4ee5\u6beb\u79d2\u7d1a\u7684\u5ef6\u9072\u8655\u7406\u6578\u767e\u842c\u6b21\u8acb\u6c42\u3002<\/li>\n<li>\u6301\u4e45\u5316\uff1a\u652f\u6301\u5c07\u6578\u64da\u6301\u4e45\u5316\u5230\u78c1\u789f\uff0c\u78ba\u4fdd\u6578\u64da\u4e0d\u6703\u56e0\u70ba\u670d\u52d9\u5668\u91cd\u555f\u800c\u4e1f\u5931\u3002<\/li>\n<li>\u9748\u6d3b\u6027\uff1a\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9069\u5408\u4e0d\u540c\u7684\u61c9\u7528\u5834\u666f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%9c%aa%e6%89%be%e5%88%b0%e5%8c%b9%e9%85%8d%e7%9a%84key%e7%9a%84%e5%8e%9f%e5%9b%a0-ytLOqsNUDI\">\u672a\u627e\u5230\u5339\u914d\u7684Key\u7684\u539f\u56e0<\/h2>\n<p>\u7576Redis\u8fd4\u56de\u201c\u672a\u627e\u5230\u5339\u914d\u7684Key\u201d\u6642\uff0c\u901a\u5e38\u6709\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\uff1a<\/p>\n<h3 id=\"1-key%e4%b8%8d%e5%ad%98%e5%9c%a8-ytLOqsNUDI\">1. Key\u4e0d\u5b58\u5728<\/h3>\n<p>\u6700\u5e38\u898b\u7684\u539f\u56e0\u662f\u8acb\u6c42\u7684Key\u6839\u672c\u4e0d\u5b58\u5728\u3002\u9019\u53ef\u80fd\u662f\u56e0\u70baKey\u5f9e\u672a\u88ab\u5275\u5efa\uff0c\u6216\u8005\u5728\u4e4b\u524d\u7684\u64cd\u4f5c\u4e2d\u88ab\u522a\u9664\u3002<\/p>\n<pre><code>redis&gt; GET non_existing_key\n(nil)\n<\/code><\/pre>\n<h3 id=\"2-key%e7%9a%84%e5%91%bd%e5%90%8d%e9%8c%af%e8%aa%a4-ytLOqsNUDI\">2. Key\u7684\u547d\u540d\u932f\u8aa4<\/h3>\n<p>\u5728\u4f7f\u7528Redis\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u56e0\u70ba\u62fc\u5beb\u932f\u8aa4\u6216\u5927\u5c0f\u5beb\u4e0d\u654f\u611f\u800c\u5c0e\u81f4Key\u7121\u6cd5\u5339\u914d\u3002Redis\u662f\u5340\u5206\u5927\u5c0f\u5beb\u7684\uff0c\u56e0\u6b64\u201cmyKey\u201d\u548c\u201cmykey\u201d\u662f\u5169\u500b\u4e0d\u540c\u7684Key\u3002<\/p>\n<pre><code>redis&gt; GET myKey\n(nil)\nredis&gt; GET mykey\n(nil)\n<\/code><\/pre>\n<h3 id=\"3-key%e7%9a%84%e9%81%8e%e6%9c%9f-ytLOqsNUDI\">3. Key\u7684\u904e\u671f<\/h3>\n<p>Redis\u652f\u6301\u8a2d\u7f6eKey\u7684\u904e\u671f\u6642\u9593\u3002\u5982\u679c\u4e00\u500bKey\u5728\u904e\u671f\u6642\u9593\u5230\u9054\u4e4b\u524d\u672a\u88ab\u8a2a\u554f\uff0c\u5b83\u5c07\u81ea\u52d5\u88ab\u522a\u9664\u3002<\/p>\n<pre><code>redis&gt; SET myKey \"value\" EX 10\nredis&gt; GET myKey\n\"value\"\n# \u7b49\u5f8510\u79d2\nredis&gt; GET myKey\n(nil)\n<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e4%ba%86%e9%8c%af%e8%aa%a4%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab-ytLOqsNUDI\">4. \u4f7f\u7528\u4e86\u932f\u8aa4\u7684\u6578\u64da\u5eab<\/h3>\n<p>Redis\u652f\u6301\u591a\u500b\u6578\u64da\u5eab\uff0c\u9ed8\u8a8d\u60c5\u6cc1\u4e0b\u4f7f\u7528\u6578\u64da\u5eab0\u3002\u5982\u679c\u958b\u767c\u8005\u5728\u4e0d\u540c\u7684\u6578\u64da\u5eab\u4e2d\u67e5\u627eKey\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u627e\u4e0d\u5230\u5339\u914d\u7684Key\u3002<\/p>\n<pre><code>redis&gt; SELECT 1\nredis&gt; GET myKey\n(nil)\n<\/code><\/pre>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-ytLOqsNUDI\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u89e3\u6c7a\u201c\u672a\u627e\u5230\u5339\u914d\u7684Key\u201d\u7684\u554f\u984c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u63aa\u65bd\uff1a<\/p>\n<ul>\n<li>\u6aa2\u67e5Key\u7684\u5b58\u5728\u6027\uff1a\u4f7f\u7528<code>EXISTS<\/code>\u547d\u4ee4\u4f86\u78ba\u8a8dKey\u662f\u5426\u5b58\u5728\u3002<\/li>\n<li>\u78ba\u8a8dKey\u7684\u62fc\u5beb\uff1a\u4ed4\u7d30\u6aa2\u67e5Key\u7684\u62fc\u5beb\u548c\u5927\u5c0f\u5beb\u3002<\/li>\n<li>\u6aa2\u67e5\u904e\u671f\u6642\u9593\uff1a\u4f7f\u7528<code>TTL<\/code>\u547d\u4ee4\u4f86\u6aa2\u67e5Key\u7684\u5269\u9918\u751f\u5b58\u6642\u9593\u3002<\/li>\n<li>\u78ba\u8a8d\u6578\u64da\u5eab\uff1a\u78ba\u4fdd\u5728\u6b63\u78ba\u7684\u6578\u64da\u5eab\u4e2d\u67e5\u627eKey\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-ytLOqsNUDI\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u4f7f\u7528Redis\u6642\uff0c\u9047\u5230\u201c\u672a\u627e\u5230\u5339\u914d\u7684Key\u201d\u7684\u60c5\u6cc1\u662f\u5e38\u898b\u7684\u554f\u984c\u3002\u901a\u904e\u4e86\u89e3\u53ef\u80fd\u7684\u539f\u56e0\u548c\u76f8\u61c9\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u4f7f\u7528Redis\uff0c\u63d0\u5347\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684<code><a href=\"https:\/\/server.hk\">VPS<\/a><\/code>\u6216<code><a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a><\/code>\u53ef\u4ee5\u9032\u4e00\u6b65\u63d0\u5347Redis\u7684\u904b\u884c\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis\u672a\u627e\u5230\u5339\u914d\u7684Key\u65f6\uff0c\u8fd4\u56de\u7a7a\u7ed3\u679c\u3002\u4e86\u89e3\u5982\u4f55\u5904\u7406\u65e0\u6548Key\u548c\u4f18\u5316\u6570\u636e\u5b58\u50a8\uff0c\u63d0\u5347\u6027\u80fd\u4e0e\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-129761","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129761","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=129761"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129761\/revisions"}],"predecessor-version":[{"id":129762,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129761\/revisions\/129762"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}