{"id":201170,"date":"2025-05-10T08:48:58","date_gmt":"2025-05-10T00:48:58","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201170\/"},"modified":"2025-05-10T08:48:58","modified_gmt":"2025-05-10T00:48:58","slug":"redis-%e5%ad%98%e5%82%a8%e5%af%b9%e8%b1%a1%e4%bf%a1%e6%81%af%e7%94%a8-hash-%e5%92%8cstring%e7%9a%84%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201170\/","title":{"rendered":"Redis\u00a0\u5b58\u50a8\u5bf9\u8c61\u4fe1\u606f\u7528\u00a0Hash\u00a0\u548cString\u7684\u533a\u522b"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>Redis&nbsp;\u5b58\u50a8\u5bf9\u8c61\u4fe1\u606f\u7528&nbsp;Hash&nbsp;\u548cString\u7684\u533a\u522b<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aRedis&nbsp;\u5b58\u50a8\u5bf9\u8c61\u4fe1\u606f\u7528&nbsp;Hash&nbsp;\u548cString\u7684\u533a\u522b\u300b\uff0c\u8986\u76d6\u4e86\u6570\u636e\u5e93\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167240703963aee7ff10697.png\" class=\"aligncenter\"><\/p>\n<p>\u65e5\u5e38\u5de5\u4f5c\u4e2d\u6211\u4eec\u5b58\u50a8\u5bf9\u8c61\u4fe1\u606f\u7684\u65f6\u5019\uff0c\u4e00\u822c\u6709\u4e24\u79cd\u505a\u6cd5\uff0c\u4e00\u79cd\u662f\u7528 Hash \u5b58\u50a8\uff0c\u53e6\u4e00\u79cd\u662f String \u5b58\u50a8\u3002\u4f46\u597d\u50cf\u5e76\u6ca1\u6709\u6240\u8c13\u7684\u6700\u4f73\u5b9e\u8df5\uff0c\u90a3\u4e48\u5b9e\u9645\u4e0a\u5230\u5e95\u7528\u4ec0\u4e48\u6570\u636e\u7ed3\u6784\u5b58\u50a8\u66f4\u597d\u5462\uff1f<\/p>\n<p>\u9996\u5148\u7b80\u5355\u56de\u987e\u4e0b\uff0cRedis \u7684 Hash \u548c String \u7ed3\u6784\u3002<\/p>\n<h2>String<\/h2>\n<p>String \u6570\u636e\u7ed3\u6784\u662f\u7b80\u5355\u7684 key-value \u7c7b\u578b\uff0cvalue \u5176\u5b9e\u4e0d\u4ec5\u662f String\uff0c\u4e5f\u53ef\u4ee5\u662f\u6570\u5b57\u3002<\/p>\n<p><strong>Redis \u4e2d\u7684 String \u53ef\u4ee5\u8868\u793a\u5f88\u591a\u8bed\u4e49\uff1a<\/strong><\/p>\n<ul>\n<li>\u5b57\u7b26\u4e32\uff08bits\uff09<\/li>\n<li>\u6574\u6570<\/li>\n<li>\u6d6e\u70b9\u6570<\/li>\n<\/ul>\n<p>\u8fd9\u4e09\u79cd\u7c7b\u578b\uff0cRedis \u4f1a\u6839\u636e\u5177\u4f53\u7684\u573a\u666f\u5b8c\u6210\u81ea\u52a8\u8f6c\u6362\uff0c\u5e76\u4e14\u6839\u636e\u9700\u8981\u9009\u53d6\u5e95\u5c42\u7684\u627f\u8f7d\u65b9\u5f0f\u3002String \u5728 Redis \u5185\u90e8\u5b58\u50a8\u9ed8\u8ba4\u5c31\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u88ab RedisObject \u6240\u5f15\u7528\uff0c\u5f53\u9047\u5230 incr\u3001decr \u7b49\u64cd\u4f5c\u65f6\u4f1a\u8f6c\u6210\u6570\u503c\u578b\u8fdb\u884c\u8ba1\u7b97\uff0c\u6b64\u65f6 RedisObject \u7684 encoding \u5b57\u6bb5\u4e3a int\u3002<\/p>\n<p>\u5728\u5b58\u50a8\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u7528\u6237\u4fe1\u606f\u4f7f\u7528 Json \u5e8f\u5217\u5316\u6210\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u5c06\u5e8f\u5217\u5316\u540e\u7684\u5b57\u7b26\u4e32\u5b58\u5165 Redis \u8fdb\u884c\u7f13\u5b58\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167240703963aee7ff433b3.png\" class=\"aligncenter\"><\/p>\n<p>\u7531\u4e8e Redis \u7684\u5b57\u7b26\u4e32\u662f\u52a8\u6001\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u4fee\u6539\uff0c\u5185\u90e8\u7ed3\u6784\u7c7b\u4f3c\u4e8e Java \u7684 ArrayList\uff0c\u91c7\u7528\u9884\u5206\u914d\u5197\u4f59\u7a7a\u95f4\u7684\u65b9\u5f0f\u6765\u51cf\u5c11\u5185\u5b58\u7684\u9891\u7e41\u5206\u914d\u3002\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u5185\u90e8\u4e3a\u5f53\u524d\u5b57\u7b26\u4e32\u5b9e\u9645\u5206\u914d\u7684\u7a7a\u95f4 capacity\uff0c\u4e00\u822c\u9ad8\u4e8e\u5b9e\u9645\u5b57\u7b26\u4e32\u957f\u5ea6 len\u3002<\/p>\n<p><strong>\u5047\u8bbe\u6211\u4eec\u8981\u5b58\u50a8\u7684\u7ed3\u6784\u662f\uff1a<\/strong><\/p>\n<pre>{\n  \"name\": \"xiaowang\",\n  \"age\": \"35\"\n}<\/pre>\n<p>\u5982\u679c\u6b64\u65f6\u5c06\u6b64\u7528\u6237\u4fe1\u606f\u7684 name \u6539\u4e3a \u201cxiaoli\u201d\uff0c\u518d\u5b58\u5230 Redis \u4e2d\uff0cRedis \u662f\u4e0d\u9700\u8981\u91cd\u65b0\u5206\u914d\u7a7a\u95f4\u7684\u3002\u800c\u4e14\u6211\u4eec\u5728\u8bfb\u53d6\u548c\u5b58\u50a8\u6570\u636e\u7684\u65f6\u5019\u53ea\u9700\u8981\u5bf9\u505a Json \u5e8f\u5217\u5316\u4e0e\u53cd\u5e8f\u5217\u5316\uff0c\u6bd4\u8f83\u65b9\u4fbf\u3002<\/p>\n<h2>Hash<\/h2>\n<p>Hash \u5728\u5f88\u591a\u7f16\u7a0b\u8bed\u8a00\u4e2d\u90fd\u6709\u7740\u5f88\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u800c\u5728 Redis \u4e2d\u4e5f\u662f\u5982\u6b64\u3002\u5728 Redis \u4e2d\uff0cHash \u5e38\u5e38\u7528\u6765\u7f13\u5b58\u4e00\u4e9b\u5bf9\u8c61\u4fe1\u606f\uff0c\u5982\u7528\u6237\u4fe1\u606f\u3001\u5546\u54c1\u4fe1\u606f\u3001\u914d\u7f6e\u4fe1\u606f\u7b49\uff0c\u56e0\u6b64\u4e5f\u88ab\u79f0\u4e3a\u5b57\u5178\uff08dictionary\uff09\uff0cRedis \u7684\u5b57\u5178\u4f7f\u7528 Hash table \u4f5c\u4e3a\u5e95\u5c42\u5b9e\u73b0\uff0c \u4e00\u4e2a Hash table \u91cc\u9762\u53ef\u4ee5\u6709\u591a\u4e2a\u54c8\u5e0c\u8868\u8282\u70b9\uff0c\u800c\u6bcf\u4e2a\u54c8\u5e0c\u8868\u8282\u70b9\u4fdd\u5b58\u4e86\u5b57\u5178\u4e2d\u7684\u4e00\u4e2a\u952e\u503c\u5bf9\u3002\u5b9e\u9645\u4e0a\uff0cRedis \u6570\u636e\u5e93\u5e95\u5c42\u4e5f\u662f\u91c7\u7528 Hash table \u6765\u5b58\u50a8\u952e\u503c\u5bf9\u7684\u3002<\/p>\n<p>Redis \u7684 Hash \u76f8\u5f53\u4e8e Java \u7684 HashMap\uff0c\u5185\u90e8\u7ed3\u6784\u5b9e\u73b0\u4e0e HashMap \u4e00\u81f4\uff0c\u5373\u6570\u7ec4 + \u94fe\u8868\u7ed3\u6784\u3002\u53ea\u662f reHash \u65b9\u5f0f\u4e0d\u4e00\u6837\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167240703963aee7ff80d6d.png\" class=\"aligncenter\"><\/p>\n<p>\u524d\u9762\u8bf4\u5230 String \u9002\u5408\u5b58\u50a8\u7528\u6237\u4fe1\u606f\uff0c\u800c Hash \u7ed3\u6784\u4e5f\u53ef\u4ee5\u5b58\u50a8\u7528\u6237\u4fe1\u606f\uff0c\u4e0d\u8fc7\u662f\u5bf9\u6bcf\u4e2a\u5b57\u6bb5\u5355\u72ec\u5b58\u50a8\uff0c\u56e0\u6b64\u53ef\u4ee5\u5728\u67e5\u8be2\u65f6\u83b7\u53d6\u90e8\u5206\u5b57\u6bb5\u7684\u4fe1\u606f\uff0c\u8282\u7701\u7f51\u7edc\u6d41\u91cf\u3002<\/p>\n<p><strong>\u4e0d\u8fc7 Redis \u7684 Hash \u7684\u503c\u53ea\u80fd\u662f\u5b57\u7b26\u4e32\uff0c\u5b58\u50a8\u4e0a\u9762\u7684\u90a3\u4e2a\u4f8b\u5b50\u8fd8\u597d\uff0c\u5982\u679c\u5b58\u50a8\u7684\u7528\u6237\u4fe1\u606f\u53d8\u4e3a\uff1a<\/strong><\/p>\n<pre>{\n  \"name\": \"xiaowang\",\n  \"age\": 25,\n  \"clothes\": {\n    \"shirt\": \"gray\",\n    \"pants\": \"read\"\n  }\n}<\/pre>\n<p>\u90a3\u4e48\u8be5\u5982\u4f55\u5b58\u50a8 &#8220;clothes&#8221; \u5c5e\u6027\u53c8\u53d8\u6210\u4e86\u8be5\u7528 String \u8fd8\u662f Hash \u7684\u95ee\u9898\u3002<\/p>\n<h2>String \u548c Hash \u5360\u7528\u5185\u5b58\u7684\u6bd4\u8f83<\/h2>\n<p>\u65e2\u7136\u4e24\u79cd\u6570\u636e\u7ed3\u6784\u90fd\u53ef\u4ee5\u5b58\u50a8\u7ed3\u6784\u4f53\u4fe1\u606f\u3002\u5230\u5e95\u54ea\u79cd\u66f4\u52a0\u5408\u9002\u5462\uff1f<\/p>\n<p>\u9996\u5148\u6211\u4eec\u7528\u4ee3\u7801\u5148\u63d2\u5165 10000 \u6761\u6570\u636e\uff0c\u7136\u540e\u7528\u53ef\u89c6\u5316\u5de5\u5177\u6765\u770b\u770b\u5185\u5b58\u7684\u5360\u7528\u60c5\u51b5\u3002<\/p>\n<pre>const Redis = require(\"ioRedis\");\nconst Redis0 = new Redis({port: 6370});\nconst Redis1 = new Redis({port: 6371});\nconst user = {\n  name: 'name12345',\n  age: 16,\n  avatar: 'https:\/\/dss3.bdstatic.com\/70cFv8Sh_Q1YnxGkpoWK1HF6hhy\/it\/u=256767015,24101428&amp;fm=26&amp;gp=0.jpg',\n  phone: '13111111111',\n  email: '1111111@11.email',\n  lastLogon: '2021-04-28 10:00:00',\n}\nasync function main() {\n  for (let i = 0; i \n<p><strong>\u5148\u770b Redis0\uff1a<\/strong><\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167240703963aee7ffbf248.png\" class=\"aligncenter\"><\/p>\n<p><strong>\u518d\u6765\u770b\u770b Redis1\uff1a<\/strong><\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167240704063aee80002eba.png\" class=\"aligncenter\"><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u8fd8\u662f\u6709\u70b9\u5dee\u8ddd\u7684\uff0c\u4f46\u662f\u5dee\u8ddd\u5e76\u4e0d\u660e\u663e\u3002<\/p>\n<h2>\u7f51\u53cb\u8ba8\u8bba<\/h2>\n<p>\u7f51\u4e0a\u7684\u7528\u6237\u4e5f\u6709\u540c\u6837\u7684\u7591\u95ee\uff0c \u56e0\u4e3a\u503c\u7684\u957f\u5ea6\u662f\u4e0d\u786e\u5b9a\u7684\uff0c\u6240\u4ee5\u4e0d\u77e5\u9053\u91c7\u7528 String \u8fd8\u662f Hash \u5b58\u50a8\u66f4\u6709\u6548\u7387\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167240704063aee80032ef0.png\" class=\"aligncenter\"><\/p>\n<p>\u8fd9\u91cc\u6211\u4e3b\u8981\u7ed9\u5927\u5bb6\u7ffb\u8bd1\u4e0b\u8be5\u95ee\u9898\u4e0b\u4f18\u8d28\u7684\u7b54\u6848\uff1a<\/p>\n<p><strong>\u9002\u5408\u7528 String \u5b58\u50a8\u7684\u60c5\u51b5\uff1a<\/strong><\/p>\n<\/pre>\n<ul>\n<li>\u6bcf\u6b21\u9700\u8981\u8bbf\u95ee\u5927\u91cf\u7684\u5b57\u6bb5<\/li>\n<li>\u5b58\u50a8\u7684\u7ed3\u6784\u5177\u6709\u591a\u5c42\u5d4c\u5957\u7684\u65f6\u5019<\/li>\n<\/ul>\n<p><strong>\u9002\u5408\u7528 Hash \u5b58\u50a8\u7684\u60c5\u51b5\uff1a<\/strong><\/p>\n<ul>\n<li>\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e2d\u53ea\u9700\u8981\u8bbf\u95ee\u5c11\u91cf\u5b57\u6bb5<\/li>\n<li>\u81ea\u5df1\u59cb\u7ec8\u77e5\u9053\u54ea\u4e9b\u5b57\u6bb5\u53ef\u7528\uff0c\u9632\u6b62\u4f7f\u7528 mget \u65f6\u83b7\u53d6\u4e0d\u5230\u60f3\u8981\u7684\u6570\u636e<\/li>\n<\/ul>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u4ee5\u4e0a\u7684\u73af\u5883\u535a\u4e3b\u90fd\u662f\u90e8\u7f72\u57283A\u670d\u52a1\u5668\u4e0a\u7684\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u81ea\u5df1\u4e5f\u90e8\u7f72\u4e00\u5957\u3002\u672c\u6587\u4e3b\u8981\u4ecb\u7ecd\u4e86 Redis \u5b58\u50a8\u5bf9\u8c61\u4fe1\u606f\u662f\u7528 Hash \u8fd8\u662f String\uff0c\u5efa\u8bae\u662f\u5927\u90e8\u5206\u60c5\u51b5\u4e0b\u4f7f\u7528 String \u5b58\u50a8\u5c31\u597d\uff0c\u6bd5\u7adf\u5728\u5b58\u50a8\u5177\u6709\u591a\u5c42\u5d4c\u5957\u7684\u5bf9\u8c61\u65f6\u65b9\u4fbf\u5f88\u591a\uff0c\u5360\u7528\u7684\u7a7a\u95f4\u4e5f\u6bd4 Hash \u5c0f\u3002\u5f53\u6211\u4eec\u9700\u8981\u5b58\u50a8\u4e00\u4e2a\u7279\u522b\u5927\u7684\u5bf9\u8c61\u65f6\uff0c\u800c\u4e14\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e2d\u53ea\u9700\u8981\u8bbf\u95ee\u8be5\u5bf9\u8c61\u5c11\u91cf\u7684\u5b57\u6bb5\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528 Hash\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis&nbsp;\u5b58\u50a8\u5bf9\u8c61\u4fe1&#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-201170","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201170","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=201170"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201170\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}