{"id":196025,"date":"2024-11-13T19:54:20","date_gmt":"2024-11-13T11:54:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196025\/"},"modified":"2024-11-13T19:54:21","modified_gmt":"2024-11-13T11:54:21","slug":"%e5%b1%95%e7%8f%beredis%e4%b8%adhlen%e7%9a%84%e5%a4%9a%e6%a8%a3%e6%80%a7%ef%bc%88redis-%e7%9a%84-hlen%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196025\/","title":{"rendered":"\u5c55\u73feRedis\u4e2dhlen\u7684\u591a\u6a23\u6027\uff08redis \u7684 hlen\uff09"},"content":{"rendered":"<h1 id=\"%e5%b1%95%e7%8f%beredis%e4%b8%adhlen%e7%9a%84%e5%a4%9a%e6%a8%a3%e6%80%a7%ef%bc%88redis-%e7%9a%84-hlen%ef%bc%89-gjEztDLuNR\">\u5c55\u73feRedis\u4e2dhlen\u7684\u591a\u6a23\u6027\uff08redis \u7684 hlen\uff09<\/h1>\n<p>Redis\u662f\u4e00\u500b\u9ad8\u6548\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5feb\u901f\u5b58\u53d6\u6578\u64da\u7684\u61c9\u7528\u4e2d\u3002Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5176\u4e2d\u54c8\u5e0c\uff08hash\uff09\u662f\u4e00\u7a2e\u975e\u5e38\u91cd\u8981\u7684\u6578\u64da\u7d50\u69cb\u3002\u54c8\u5e0c\u5141\u8a31\u7528\u6236\u4ee5\u9375\u503c\u5c0d\u7684\u5f62\u5f0f\u5b58\u5132\u6578\u64da\uff0c\u4e26\u4e14\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u547d\u4ee4\u9032\u884c\u64cd\u4f5c\u3002\u5728\u9019\u4e9b\u547d\u4ee4\u4e2d\uff0c<code>hlen<\/code>\u547d\u4ee4\u7528\u65bc\u7372\u53d6\u54c8\u5e0c\u4e2d\u5b57\u6bb5\u7684\u6578\u91cf\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u6578\u64da\u7ba1\u7406\u4e2d\u5177\u6709\u91cd\u8981\u7684\u61c9\u7528\u50f9\u503c\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afhlen%e5%91%bd%e4%bb%a4%ef%bc%9f-gjEztDLuNR\">\u4ec0\u9ebc\u662fhlen\u547d\u4ee4\uff1f<\/h2>\n<p><code>hlen<\/code>\u547d\u4ee4\u7684\u5168\u540d\u662f\u201chash length\u201d\uff0c\u5b83\u7684\u4e3b\u8981\u529f\u80fd\u662f\u8fd4\u56de\u6307\u5b9a\u54c8\u5e0c\u4e2d\u5b57\u6bb5\u7684\u6578\u91cf\u3002\u9019\u5c0d\u65bc\u9700\u8981\u4e86\u89e3\u54c8\u5e0c\u7d50\u69cb\u4e2d\u5b58\u5132\u4e86\u591a\u5c11\u6578\u64da\u7684\u60c5\u6cc1\u975e\u5e38\u6709\u7528\u3002\u4f7f\u7528<code>hlen<\/code>\u547d\u4ee4\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5feb\u901f\u8a55\u4f30\u6578\u64da\u7684\u5927\u5c0f\uff0c\u5f9e\u800c\u9032\u884c\u76f8\u61c9\u7684\u6578\u64da\u8655\u7406\u6216\u512a\u5316\u3002<\/p>\n<h3 id=\"hlen%e5%91%bd%e4%bb%a4%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-gjEztDLuNR\">hlen\u547d\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5<\/h3>\n<pre><code>HLEN key<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>key<\/code>\u662f\u54c8\u5e0c\u7684\u540d\u7a31\u3002\u7576\u57f7\u884c\u6b64\u547d\u4ee4\u6642\uff0cRedis\u5c07\u8fd4\u56de\u8a72\u54c8\u5e0c\u4e2d\u5b57\u6bb5\u7684\u6578\u91cf\u3002\u5982\u679c\u6307\u5b9a\u7684\u54c8\u5e0c\u4e0d\u5b58\u5728\uff0c\u5247\u8fd4\u56de0\u3002<\/p>\n<h2 id=\"hlen%e5%91%bd%e4%bb%a4%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-gjEztDLuNR\">hlen\u547d\u4ee4\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528<code>hlen<\/code>\u547d\u4ee4\u7684\u5e38\u898b\u5834\u666f\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u7d71\u8a08\uff1a<\/strong>\u5728\u9032\u884c\u6578\u64da\u5206\u6790\u6642\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528<code>hlen<\/code>\u547d\u4ee4\u4f86\u7372\u53d6\u54c8\u5e0c\u4e2d\u5b58\u5132\u7684\u6578\u64da\u91cf\uff0c\u9019\u6709\u52a9\u65bc\u4e86\u89e3\u6578\u64da\u7684\u5206\u4f48\u60c5\u6cc1\u3002<\/li>\n<li><strong>\u6027\u80fd\u512a\u5316\uff1a<\/strong>\u7576\u7cfb\u7d71\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u4f7f\u7528<code>hlen<\/code>\u547d\u4ee4\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5224\u65b7\u662f\u5426\u9700\u8981\u5c0d\u54c8\u5e0c\u9032\u884c\u512a\u5316\u6216\u91cd\u69cb\u3002<\/li>\n<li><strong>\u6578\u64da\u5b8c\u6574\u6027\u6aa2\u67e5\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u6aa2\u67e5\u54c8\u5e0c\u4e2d\u5b57\u6bb5\u7684\u6578\u91cf\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%a4%ba%e4%be%8b-gjEztDLuNR\">\u793a\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528<code>hlen<\/code>\u547d\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>HSET user:1000 name \"Alice\" \nHSET user:1000 age 30 \nHSET user:1000 email \"alice@example.com\"<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba<code>user:1000<\/code>\u7684\u54c8\u5e0c\uff0c\u4e26\u6dfb\u52a0\u4e86\u4e09\u500b\u5b57\u6bb5\u3002\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528<code>hlen<\/code>\u547d\u4ee4\u4f86\u7372\u53d6\u8a72\u54c8\u5e0c\u4e2d\u5b57\u6bb5\u7684\u6578\u91cf\uff1a<\/p>\n<pre><code>HLEN user:1000<\/code><\/pre>\n<p>\u57f7\u884c\u6b64\u547d\u4ee4\u5f8c\uff0cRedis\u5c07\u8fd4\u56de3\uff0c\u56e0\u70ba\u6211\u5011\u5728\u54c8\u5e0c\u4e2d\u6dfb\u52a0\u4e86\u4e09\u500b\u5b57\u6bb5\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-gjEztDLuNR\">\u7d50\u8ad6<\/h2>\n<p>Redis\u4e2d\u7684<code>hlen<\/code>\u547d\u4ee4\u662f\u4e00\u500b\u7c21\u55ae\u800c\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u5feb\u901f\u7372\u53d6\u54c8\u5e0c\u4e2d\u5b57\u6bb5\u7684\u6578\u91cf\u3002\u7121\u8ad6\u662f\u5728\u6578\u64da\u7d71\u8a08\u3001\u6027\u80fd\u512a\u5316\u9084\u662f\u6578\u64da\u5b8c\u6574\u6027\u6aa2\u67e5\u65b9\u9762\uff0c<code>hlen<\/code>\u547d\u4ee4\u90fd\u80fd\u767c\u63ee\u91cd\u8981\u4f5c\u7528\u3002\u4e86\u89e3\u548c\u638c\u63e1\u9019\u500b\u547d\u4ee4\uff0c\u5c07\u6709\u52a9\u65bc\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5cRedis\u4e2d\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-gjEztDLuNR\">\u7e3d\u7d50<\/h2>\n<p>Redis\u7684<code>hlen<\/code>\u547d\u4ee4\u5c55\u73fe\u4e86\u5176\u5728\u6578\u64da\u7ba1\u7406\u4e2d\u7684\u591a\u6a23\u6027\u548c\u9748\u6d3b\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u53d6\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\u548c\u547d\u4ee4\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u7ba1\u7406\u60a8\u7684\u6578\u64da\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684Redis\u61c9\u7528\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u4e2dhlen\u547d\u4ee4\u7684\u591a\u6a23\u6027\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u54c8\u5e0c\u8868\u7684\u5b57\u6bb5\u6578\u91cf\uff0c\u63d0\u5347\u6578\u64da\u64cd\u4f5c\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-196025","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196025","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=196025"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196025\/revisions"}],"predecessor-version":[{"id":196026,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196025\/revisions\/196026"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=196025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=196025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=196025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}