{"id":201109,"date":"2025-05-10T08:36:43","date_gmt":"2025-05-10T00:36:43","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201109\/"},"modified":"2025-05-10T08:36:43","modified_gmt":"2025-05-10T00:36:43","slug":"redis%e5%9f%ba%e6%9c%ac%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e5%93%88%e5%b8%8chash%e5%b8%b8%e7%94%a8%e6%93%8d%e4%bd%9c%e5%91%bd%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201109\/","title":{"rendered":"Redis\u57fa\u672c\u6570\u636e\u7c7b\u578b\u54c8\u5e0cHash\u5e38\u7528\u64cd\u4f5c\u547d\u4ee4"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>Redis\u57fa\u672c\u6570\u636e\u7c7b\u578b\u54c8\u5e0cHash\u5e38\u7528\u64cd\u4f5c\u547d\u4ee4<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u672c\u7bc7\u6587\u7ae0\u4e3b\u8981\u662f\u7ed3\u5408\u6211\u4e4b\u524d\u9762\u8bd5\u7684\u5404\u79cd\u7ecf\u5386\u548c\u5b9e\u6218\u5f00\u53d1\u4e2d\u9047\u5230\u7684\u95ee\u9898\u89e3\u51b3\u7ecf\u9a8c\u6574\u7406\u7684\uff0c\u5e0c\u671b\u8fd9\u7bc7\u300aRedis\u57fa\u672c\u6570\u636e\u7c7b\u578b\u54c8\u5e0cHash\u5e38\u7528\u64cd\u4f5c\u547d\u4ee4\u300b\u5bf9\u4f60\u6709\u5f88\u5927\u5e2e\u52a9\uff01\u6b22\u8fce\u6536\u85cf\uff0c\u5206\u4eab\u7ed9\u66f4\u591a\u7684\u9700\u8981\u7684\u670b\u53cb\u5b66\u4e60~<\/p>\n<h2>Redis\u6570\u636e\u7c7b\u578bHash\u5e38\u7528\u64cd\u4f5c<\/h2>\n<p>redis\u91cc\u7684hash\u662f\u4e00\u4e2astring\u7c7b\u578b\u7684field(\u5b57\u6bb5)\u548cvalue(\u503c)\u7684\u6620\u5c04\u8868\u3002\u7279\u522b\u9002\u5408\u7528\u4e8e\u5b58\u50a8\u5bf9\u8c61\uff0c\u6bcf\u4e2ahash\u53ef\u4ee5\u5b58\u50a840\u591a\u4ebf\u952e\u503c\u5bf9\u3002<\/p>\n<p>\u719f\u6089python\u7684\u7ae5\u978b\u53ef\u4ee5\u60f3\u8c61\u6210\u5b57\u5178dict\u3002\u4e4b\u524d\u7684\u6570\u636e\u7c7b\u578b\u5b58\u50a8\u90fd\u662fk-v\u8fd9\u6837\uff0c\u800chash\u7684\u5b58\u50a8\u5c31\u662f<code>k-dict<\/code>\uff0c<code>dict<\/code>\u91cc\u53c8\u4f1a\u6709\u5c5e\u4e8e\u81ea\u5df1\u7684<code>k-v<\/code>\u3002<\/p>\n<h3>\u4e00\u3001hset<\/h3>\n<p>\u4e3a\u54c8\u5e0c\u8868\u4e2d\u7684\u5b57\u6bb5\u8d4b\u503c\uff0c\u5982\u679c\u54c8\u5e0c\u8868\u4e0d\u5b58\u5728\uff0c\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u54c8\u5e0c\u8868\u88ab\u5e76\u8fdb\u884chset\u64cd\u4f5c\u3002<br \/>\u5982\u679c\u5b57\u6bb5\u5df2\u7ecf\u5b58\u5728\u4e8e\u54c8\u5e0c\u8868\u4e2d\uff0c\u65e7\u503c\u5c06\u88ab\u8986\u76d6\u3002<\/p>\n<pre>hset myhash k1 v1<\/pre>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221229\/167231613063ad84e20de30.png\" class=\"aligncenter\"><\/p>\n<h3>\u4e8c\u3001hget<\/h3>\n<p>\u8fd4\u56de\u54c8\u5e0c\u8868\u4e2d\u6307\u5b9a\u5b57\u6bb5\u7684\u503c\uff0c\u5982\u679c\u7ed9\u5b9a\u7684\u5b57\u6bb5\u6216 key \u4e0d\u5b58\u5728\u65f6\uff0c\u8fd4\u56de nil\u3002<\/p>\n<pre>hget myhash k1<\/pre>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221229\/167231613063ad84e238116.png\" class=\"aligncenter\"><\/p>\n<h3>\u4e09\u3001hmset<\/h3>\n<p>\u540c\u65f6\u5c06\u591a\u4e2a field-value \u5bf9\u8bbe\u7f6e\u5230\u54c8\u5e0c\u8868\u4e2d\u3002<\/p>\n<pre>hmset myhash k2 v2 k3 v3<\/pre>\n<p>\u5982\u679c\u54c8\u5e0c\u8868\u4e2d\u5df2\u5b58\u5728\u7684\u5b57\u6bb5\uff0c\u5219\u8986\u76d6\u3002<br \/>\u5982\u679c\u54c8\u5e0c\u8868\u4e0d\u5b58\u5728\uff0c\u4f1a\u521b\u5efa\u4e00\u4e2a\u7a7a\u54c8\u5e0c\u8868\uff0c\u5e76\u6267\u884chset\u64cd\u4f5c\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221229\/167231613063ad84e29f8d7.png\" class=\"aligncenter\"><\/p>\n<h3>\u56db\u3001hmget<\/h3>\n<p>\u8fd4\u56de\u54c8\u5e0c\u8868\u4e2d\uff0c\u4e00\u4e2a\u6216\u591a\u4e2a\u7ed9\u5b9a\u5b57\u6bb5\u7684\u503c\u3002<\/p>\n<pre>hmget myhash k1 k2 k3 k4<\/pre>\n<p>\u5982\u679c\u6307\u5b9a\u7684\u5b57\u6bb5\u4e0d\u5b58\u5728\u4e8e\u54c8\u5e0c\u8868\uff0c\u90a3\u4e48\u8fd4\u56de\u4e00\u4e2anil\u503c\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221229\/167231613163ad84e315b93.png\" class=\"aligncenter\"><\/p>\n<h3>\u4e94\u3001hgetall<\/h3>\n<p>\u8fd4\u56de\u54c8\u5e0c\u8868\u4e2d\uff0c\u6240\u6709\u7684\u5b57\u6bb5\u548c\u503c\u3002<\/p>\n<pre>hgetall myhash<\/pre>\n<p>\u6ce8\u610f\uff0c\u5728\u8fd4\u56de\u503c\u91cc\uff0c\u7d27\u8ddf\u6bcf\u4e2a\u5b57\u6bb5\u540d(field name)\u4e4b\u540e\u662f\u5b57\u6bb5\u7684\u503c(value)\uff0c\u6240\u4ee5\u8fd4\u56de\u503c\u7684\u957f\u5ea6\u662f\u54c8\u5e0c\u8868\u5927\u5c0f\u7684\u4e24\u500d\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221229\/167231613163ad84e373873.png\" class=\"aligncenter\"><\/p>\n<h3>\u516d\u3001hdel<\/h3>\n<p>\u5220\u9664\u54c8\u5e0c\u8868 key \u4e2d\u7684\u4e00\u4e2a\u6216\u591a\u4e2a\u6307\u5b9a\u5b57\u6bb5\uff0c\u4e0d\u5b58\u5728\u7684\u5b57\u6bb5\u5c06\u88ab\u5ffd\u7565\u3002<\/p>\n<pre>hdel myhash k2 k3 k5<\/pre>\n<p>\u8fd4\u56de\u7684\u662f\u88ab\u6210\u529f\u5220\u9664\u5b57\u6bb5\u7684\u6570\u91cf\uff0c\u4e0d\u5305\u62ec\u88ab\u5ffd\u7565\u7684\u5b57\u6bb5\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221229\/167231613163ad84e3d5ce7.png\" class=\"aligncenter\"><\/p>\n<h3>\u4e03\u3001hlen<\/h3>\n<p>\u83b7\u53d6\u54c8\u5e0c\u8868\u4e2d\u5b57\u6bb5\u7684\u6570\u91cf\u3002<\/p>\n<pre>hlen myhash<\/pre>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221229\/167231613263ad84e453adb.png\" class=\"aligncenter\"><\/p>\n<h3>\u516b\u3001hexists<\/h3>\n<p>\u67e5\u770b\u54c8\u5e0c\u8868\u7684\u6307\u5b9a\u5b57\u6bb5\u662f\u5426\u5b58\u5728\u3002<\/p>\n<pre>hexists myhash k1<\/pre>\n<p>\u5982\u679c\u54c8\u5e0c\u8868\u542b\u6709\u7ed9\u5b9a\u5b57\u6bb5\uff0c\u8fd4\u56de 1\u3002<br \/>\u5982\u679c\u54c8\u5e0c\u8868\u4e0d\u542b\u6709\u7ed9\u5b9a\u5b57\u6bb5\uff0c\u6216 key \u4e0d\u5b58\u5728\uff0c\u8fd4\u56de 0 \u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221229\/167231613263ad84e4ad4c6.png\" class=\"aligncenter\"><\/p>\n<h3>\u4e5d\u3001hkeys<\/h3>\n<p>\u83b7\u53d6\u54c8\u5e0c\u8868\u4e2d\u7684\u6240\u6709\u5b57\u6bb5(field)\u3002<\/p>\n<pre>hkeys myhash<\/pre>\n<p>\u5305\u542b\u54c8\u5e0c\u8868\u4e2d\u6240\u6709\u5b57\u6bb5(field)\u5217\u8868\u3002 \u5f53 key \u4e0d\u5b58\u5728\u65f6\uff0c\u8fd4\u56de\u4e00\u4e2a\u7a7a\u5217\u8868\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221229\/167231613363ad84e5043f4.png\" class=\"aligncenter\"><\/p>\n<h3>\u5341\u3001hvals<\/h3>\n<p>\u8fd4\u56de\u54c8\u5e0c\u8868\u6240\u6709\u5b57\u6bb5(field)\u7684\u503c\u3002<\/p>\n<pre>hvals myhash<\/pre>\n<p>\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u54c8\u5e0c\u8868\u4e2d\u6240\u6709\u5b57\u6bb5(field)\u503c\u7684\u5217\u8868\u3002 \u5f53 key \u4e0d\u5b58\u5728\u65f6\uff0c\u8fd4\u56de\u4e00\u4e2a\u7a7a\u8868\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221229\/167231613363ad84e54c6e4.png\" class=\"aligncenter\"><\/p>\n<h3>\u5341\u4e00\u3001hincrby<\/h3>\n<p>\u4e3a\u54c8\u5e0c\u8868\u4e2d\u7684\u5b57\u6bb5\u503c\u52a0\u4e0a\u6307\u5b9a\u589e\u91cf\u503c\uff0c\u8fd9\u4e2a\u589e\u91cf\u4e5f\u53ef\u4ee5\u662f\u8d1f\u6570\uff0c\u76f8\u5f53\u4e8e\u51cf\u6cd5\u3002<\/p>\n<p>\u82e5\u54c8\u5e0c\u8868\u7684 key \u4e0d\u5b58\u5728\uff0c\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u54c8\u5e0c\u8868\u88ab\u5e76\u6267\u884c<code>hincrby<\/code>\u547d\u4ee4\u3002<\/p>\n<p>\u82e5\u6307\u5b9a\u7684\u5b57\u6bb5\u4e0d\u5b58\u5728\uff0c\u90a3\u4e48\u5728\u6267\u884c\u547d\u4ee4\u524d\uff0c\u5b57\u6bb5\u7684\u503c\u88ab\u521d\u59cb\u5316\u4e3a 0 \u3002<\/p>\n<p>\u82e5\u5bf9\u50a8\u5b58\u5b57\u7b26\u4e32\u503c\u7684\u5b57\u6bb5\u6267\u884c\uff0c\u4f1a\u62a5\u9519\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221229\/167231613363ad84e596a1c.png\" class=\"aligncenter\"><\/p>\n<h3>\u5341\u4e8c\u3001hsetnx<\/h3>\n<p>\u4e3a\u54c8\u5e0c\u8868\u4e2d\u4e0d\u5b58\u5728\u7684\u7684\u5b57\u6bb5\u8d4b\u503c\u3002<\/p>\n<p>\u82e5\u54c8\u5e0c\u8868\u4e0d\u5b58\u5728\uff0c\u521b\u5efa\u65b0\u7684\u54c8\u5e0c\u8868\u5e76\u8fdb\u884c hset \u64cd\u4f5c\u3002<\/p>\n<p>\u5982\u679c\u5b57\u6bb5\u5df2\u7ecf\u5b58\u5728\u4e8e\u54c8\u5e0c\u8868\u4e2d\uff0c\u64cd\u4f5c\u65e0\u6548\u3002<\/p>\n<p>\u5982\u679ckey\u4e0d\u5b58\u5728\uff0c\u521b\u5efa\u65b0\u54c8\u5e0c\u8868\u5e76\u6267\u884c<code>hsetnx<\/code>\u547d\u4ee4\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221229\/167231613363ad84e5e79c6.png\" class=\"aligncenter\"><\/p>\n<p>\u5173\u4e8eredis\u4e2dhash\u7684\u5e94\u7528\uff0c\u6bd4\u5982\u4fdd\u5b58\u7528\u6237\u4fe1\u606f\u6570\u636e\u3001\u7ecf\u5e38\u53d8\u52a8\u7684\u4fe1\u606f\uff0c\u5982\u679c\u4e0d\u60f3\u4f7f\u7528\u4f20\u7edf\u7684k-v\u5bf9\u8c61\u53bb\u5b58\u50a8\uff0c\u53ef\u4ee5\u7528redis\u7684hash\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis\u57fa\u672c\u6570\u636e\u7c7b\u578b\u54c8\u5e0cHas&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201109","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201109","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201109"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201109\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201109"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}