{"id":98044,"date":"2024-10-20T23:18:18","date_gmt":"2024-10-20T15:18:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/98044\/"},"modified":"2024-10-20T23:18:18","modified_gmt":"2024-10-20T15:18:18","slug":"redis-%e6%9f%a5%e7%9c%8b-key-%e9%95%b7%e5%ba%a6%e7%9a%84%e7%b0%a1%e6%98%8e%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/98044\/","title":{"rendered":"Redis \u67e5\u770b Key \u9577\u5ea6\u7684\u7c21\u660e\u65b9\u6cd5"},"content":{"rendered":"<h1 id=\"redis-%e6%9f%a5%e7%9c%8b-key-%e9%95%b7%e5%ba%a6%e7%9a%84%e7%b0%a1%e6%98%8e%e6%96%b9%e6%b3%95-CpdeFWNrpN\">Redis \u67e5\u770b Key \u9577\u5ea6\u7684\u7c21\u660e\u65b9\u6cd5<\/h1>\n<p>\u5728\u4f7f\u7528 Redis \u9032\u884c\u6578\u64da\u5b58\u5132\u548c\u7ba1\u7406\u6642\uff0c\u4e86\u89e3\u5982\u4f55\u67e5\u770b Key \u7684\u9577\u5ea6\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u512a\u5316\u6578\u64da\u7d50\u69cb\uff0c\u9084\u80fd\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5e7e\u7a2e\u7c21\u660e\u7684\u65b9\u6cd5\u4f86\u67e5\u770b Redis \u4e2d Key \u7684\u9577\u5ea6\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-redis%ef%bc%9f-CpdeFWNrpN\">\u4ec0\u9ebc\u662f Redis\uff1f<\/h2>\n<p>Redis \u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9ad8\u6027\u80fd\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\u5b83\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\uff0c\u4e26\u63d0\u4f9b\u4e86\u8c50\u5bcc\u7684\u547d\u4ee4\u4f86\u64cd\u4f5c\u9019\u4e9b\u6578\u64da\u7d50\u69cb\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%9f%a5%e7%9c%8b-key-%e7%9a%84%e9%95%b7%e5%ba%a6%ef%bc%9f-CpdeFWNrpN\">\u70ba\u4ec0\u9ebc\u9700\u8981\u67e5\u770b Key \u7684\u9577\u5ea6\uff1f<\/h2>\n<p>\u67e5\u770b Key \u7684\u9577\u5ea6\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u4e86\u89e3\u6578\u64da\u7684\u5b58\u5132\u60c5\u6cc1\uff0c\u5f9e\u800c\u9032\u884c\u66f4\u6709\u6548\u7684\u6578\u64da\u7ba1\u7406\u3002\u4f8b\u5982\uff0c\u7576\u9700\u8981\u78ba\u5b9a\u67d0\u500b\u5b57\u7b26\u4e32\u7684\u5927\u5c0f\u4ee5\u4fbf\u9032\u884c\u5167\u5b58\u512a\u5316\u6642\uff0c\u9019\u4e00\u4fe1\u606f\u5c31\u986f\u5f97\u5c24\u70ba\u91cd\u8981\u3002\u6b64\u5916\uff0c\u5c0d\u65bc\u67d0\u4e9b\u61c9\u7528\u5834\u666f\uff0cKey \u7684\u9577\u5ea6\u53ef\u80fd\u6703\u5f71\u97ff\u5230\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-redis-%e5%91%bd%e4%bb%a4%e6%9f%a5%e7%9c%8b-key-%e9%95%b7%e5%ba%a6-CpdeFWNrpN\">\u4f7f\u7528 Redis \u547d\u4ee4\u67e5\u770b Key \u9577\u5ea6<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>STRLEN<\/code> \u547d\u4ee4\u4f86\u67e5\u770b\u5b57\u7b26\u4e32\u985e\u578b Key \u7684\u9577\u5ea6\u3002\u9019\u500b\u547d\u4ee4\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>STRLEN key<\/code><\/pre>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528 <code>STRLEN<\/code> \u547d\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SET mykey \"Hello, Redis!\"\nSTRLEN mykey\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u9996\u5148\u4f7f\u7528 <code>SET<\/code> \u547d\u4ee4\u8a2d\u7f6e\u4e86\u4e00\u500b Key \u70ba <code>mykey<\/code>\uff0c\u5176\u503c\u70ba <code>\"Hello, Redis!\"<\/code>\u3002\u63a5\u8457\uff0c\u4f7f\u7528 <code>STRLEN<\/code> \u547d\u4ee4\u4f86\u67e5\u770b <code>mykey<\/code> \u7684\u9577\u5ea6\uff0c\u8fd4\u56de\u7684\u7d50\u679c\u5c07\u662f <code>13<\/code>\uff0c\u56e0\u70ba\u5b57\u7b26\u4e32\u7684\u9577\u5ea6\u70ba 13 \u500b\u5b57\u7b26\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e7%9c%8b%e5%85%b6%e4%bb%96%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e7%9a%84%e9%95%b7%e5%ba%a6-CpdeFWNrpN\">\u67e5\u770b\u5176\u4ed6\u6578\u64da\u985e\u578b\u7684\u9577\u5ea6<\/h2>\n<p>\u9664\u4e86\u5b57\u7b26\u4e32\uff0cRedis \u9084\u652f\u6301\u5176\u4ed6\u6578\u64da\u985e\u578b\u3002\u5c0d\u65bc\u54c8\u5e0c\u3001\u5217\u8868\u548c\u96c6\u5408\u7b49\u6578\u64da\u985e\u578b\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u67e5\u770b\u5176\u5143\u7d20\u7684\u6578\u91cf\uff1a<\/p>\n<ul>\n<li><code>HLEN key<\/code>\uff1a\u67e5\u770b\u54c8\u5e0c\u985e\u578b Key \u7684\u5143\u7d20\u6578\u91cf\u3002<\/li>\n<li><code>LLEN key<\/code>\uff1a\u67e5\u770b\u5217\u8868\u985e\u578b Key \u7684\u5143\u7d20\u6578\u91cf\u3002<\/li>\n<li><code>SCARD key<\/code>\uff1a\u67e5\u770b\u96c6\u5408\u985e\u578b Key \u7684\u5143\u7d20\u6578\u91cf\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u662f\u9019\u4e9b\u547d\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>HSET myhash field1 \"value1\"\nHSET myhash field2 \"value2\"\nHLEN myhash\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528 <code>HSET<\/code> \u547d\u4ee4\u8a2d\u7f6e\u4e86\u4e00\u500b\u54c8\u5e0c\u985e\u578b\u7684 Key <code>myhash<\/code>\uff0c\u4e26\u6dfb\u52a0\u4e86\u5169\u500b\u5b57\u6bb5\u3002\u63a5\u8457\uff0c\u4f7f\u7528 <code>HLEN<\/code> \u547d\u4ee4\u67e5\u770b <code>myhash<\/code> \u7684\u5143\u7d20\u6578\u91cf\uff0c\u8fd4\u56de\u7684\u7d50\u679c\u5c07\u662f <code>2<\/code>\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-CpdeFWNrpN\">\u7d50\u8ad6<\/h2>\n<p>\u4e86\u89e3\u5982\u4f55\u67e5\u770b Redis \u4e2d Key \u7684\u9577\u5ea6\u5c0d\u65bc\u6578\u64da\u7ba1\u7406\u548c\u6027\u80fd\u512a\u5316\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4f7f\u7528 <code>STRLEN<\/code>\u3001<code>HLEN<\/code>\u3001<code>LLEN<\/code> \u548c <code>SCARD<\/code> \u7b49\u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u7372\u53d6\u6240\u9700\u7684\u4fe1\u606f\uff0c\u5f9e\u800c\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u90e8\u7f72\u548c\u7ba1\u7406 Redis \u6578\u64da\u5eab\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 Redis \u4e2d\u5feb\u901f\u67e5\u770b Key \u7684\u9577\u5ea6\uff0c\u7c21\u55ae\u6b65\u9a5f\u52a9\u4f60\u9ad8\u6548\u7ba1\u7406\u6578\u64da\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-98044","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98044","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=98044"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98044\/revisions"}],"predecessor-version":[{"id":98045,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98044\/revisions\/98045"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=98044"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=98044"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=98044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}