{"id":201270,"date":"2025-05-10T09:28:10","date_gmt":"2025-05-10T01:28:10","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201270\/"},"modified":"2025-05-10T09:28:10","modified_gmt":"2025-05-10T01:28:10","slug":"redis%e5%9f%ba%e6%9c%ac%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8bstring%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\/201270\/","title":{"rendered":"Redis\u57fa\u672c\u6570\u636e\u7c7b\u578bString\u5e38\u7528\u64cd\u4f5c\u547d\u4ee4"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>Redis\u57fa\u672c\u6570\u636e\u7c7b\u578bString\u5e38\u7528\u64cd\u4f5c\u547d\u4ee4<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u5728\u6570\u636e\u5e93\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929golang\u5b66\u4e60\u7f51\u5c31\u6574\u7406\u5206\u4eab\u300aRedis\u57fa\u672c\u6570\u636e\u7c7b\u578bString\u5e38\u7528\u64cd\u4f5c\u547d\u4ee4\u300b\uff0c\u804a\u804aString\u3001\u64cd\u4f5c\u547d\u4ee4\u3001Redis\u6570\u636e\u7c7b\u578b\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n<h2>Redis\u6570\u636e\u7c7b\u578bString\u64cd\u4f5c\u547d\u4ee4<\/h2>\n<h3>\u4e00\u3001append \u8ffd\u52a0\u5b57\u7b26\u4e32<\/h3>\n<pre>append name 2222<\/pre>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167254652363b108dbe2acb.png\" class=\"aligncenter\"><\/p>\n<h3>\u4e8c\u3001strlen \u83b7\u53d6key \u5b57\u7b26\u4e32\u957f\u5ea6<\/h3>\n<pre>strlen name<\/pre>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167254652463b108dc24ed2.png\" class=\"aligncenter\"><\/p>\n<h3>\u4e09\u3001\u81ea\u589e\u3001\u81ea\u51cf<\/h3>\n<p>\u6587\u7ae0\u6d4f\u89c8\u91cf\uff0c\u70b9\u8d5e\u53ef\u4ee5\u7528\u8fd9\u79cd\u5b9e\u73b0\u3002<\/p>\n<pre>incr agedecr age<\/pre>\n<p>\u6ce8\u610f\u8fd9\u91cc\u5f97\u662f\u6570\u5b57\u624d\u53ef\u4ee5\u8fdb\u884c\uff0c\u6240\u4ee5\u91cd\u8bbe\u7f6e\u4e86\u4e00\u4e2akey\u3002<\/p>\n<p>String\u7c7b\u578b\u9664\u4e86\u53ef\u4ee5\u5b58\u5b57\u7b26\u4e32\u4e5f\u53ef\u4ee5\u662f\u6570\u5b57\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167254652463b108dc6b2ba.png\" class=\"aligncenter\"><\/p>\n<p>\u5982\u679c\u8981\u5e26\u6b65\u957f\uff1a<\/p>\n<pre>incrby age 5decrby age 8<\/pre>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167254652463b108dca6995.png\" class=\"aligncenter\"><\/p>\n<h3>\u56db\u3001\u5b57\u7b26\u4e32range<\/h3>\n<pre>getrange name 1 3<\/pre>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167254652463b108dcf0de8.png\" class=\"aligncenter\"><\/p>\n<pre>getrange name 0 -1\n<\/pre>\n<p>\u67e5\u770b\u5168\u90e8\uff0c\u8ddfpython\u91cc\u7684\u5b57\u7b26\u4e32\u622a\u53d6\u64cd\u4f5c\u7c7b\u4f3c\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167254652563b108dd38e1f.png\" class=\"aligncenter\"><\/p>\n<h3>\u4e94\u3001\u66ff\u6362\u5b57\u7b26\u4e32<\/h3>\n<p>\u6307\u5b9a\u4f4d\u7f6e\u5f00\u59cb\u66ff\u6362\u5b57\u7b26\u4e32<\/p>\n<pre>setrange name 0 test<\/pre>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167254652563b108dd71f2a.png\" class=\"aligncenter\"><\/p>\n<h3>\u516d\u3001\u8bbe\u7f6e\u503c\u53ca\u5176\u8fc7\u671f\u65f6\u95f4<\/h3>\n<h4>setex<\/h4>\n<pre>setex mykey 60 redis<\/pre>\n<p>\u4e3a\u6307\u5b9a\u7684 key \u8bbe\u7f6e\u503c\u53ca\u5176\u8fc7\u671f\u65f6\u95f4\u3002\u5982\u679c key \u5df2\u7ecf\u5b58\u5728\uff0cSETEX\u547d\u4ee4\u5c06\u4f1a\u66ff\u6362\u65e7\u7684\u503c\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167254652563b108dda8fe7.png\" class=\"aligncenter\"><\/p>\n<h4>setnx<\/h4>\n<p>Setnx(SET if Not eXists) \u547d\u4ee4\u5728\u6307\u5b9a\u7684 key \u4e0d\u5b58\u5728\u65f6\uff0c\u4e3a key \u8bbe\u7f6e\u6307\u5b9a\u7684\u503c\u3002\u8fd9\u4e2a\u5728\u5206\u5e03\u5f0f\u9501\u4e2d\u7ecf\u5e38\u7528\u5230\u3002<\/p>\n<pre>setnx mykey redis333<\/pre>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167254652663b108de028b7.png\" class=\"aligncenter\"><\/p>\n<p>key\u5b58\u5728\uff0c\u5219\u8bbe\u7f6e\u5931\u8d25\u3002<\/p>\n<h3>\u4e03\u3001\u6279\u91cf\u64cd\u4f5c<\/h3>\n<h4>1. mset\u3001mget<\/h4>\n<p>mset\uff0c\u4e00\u6b21\u6027\u8bbe\u7f6e\u591a\u4e2a\u3002<\/p>\n<pre>mset k1 v1 k2 v2 k3 v3<\/pre>\n<p>mget\uff0c\u4e00\u6b21\u6027\u83b7\u53d6\u591a\u4e2a\u3002<\/p>\n<pre>mget k1 k2 k3<\/pre>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167254652663b108de459f9.png\" class=\"aligncenter\"><\/p>\n<h4>2. msetnx<\/h4>\n<p>\u6ce8\u610f\uff0c\u8fd9\u91cc\u8bbe\u7f6e\u591a\u4e2a\u503c\u7684\u65f6\u5019\uff0c\u53ea\u8981\u6709\u4e00\u4e2a\u5931\u8d25\uff0c\u5219\u90fd\u4e0d\u6210\u529f\u3002<\/p>\n<pre>msetnx k1 v1 k4 v4<\/pre>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167254652663b108de7b6ff.png\" class=\"aligncenter\"><\/p>\n<h3>\u516b\u3001\u8bbe\u7f6e\u4e00\u4e2ajson\u5bf9\u8c61<\/h3>\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u80fd\u4f1a\u7ecf\u5e38\u8981\u5b58\u4e00\u4e2a\u5bf9\u8c61\uff0c\u90a3\u4e48\u5728redis\u91cc\u53ef\u4ee5\u501f\u52a9\u5192\u53f7:\u6765\u8fdb\u884c\u4e00\u4e9b\u5de7\u5999\u7684\u8bbe\u8ba1\u3002<\/p>\n<p>\u6bd4\u5982 \u73b0\u5728\u8981\u5427<code>{name: pingguo, age:22}<\/code>\u8bbe\u7f6e\u7ed9\u4e00\u4e2a<code>user1<\/code>\uff0c\u5c31\u53ef\u4ee5\u8fd9\u6837\uff1a<\/p>\n<pre>mset user:1:name pingguo user:1:age 22mget user:1:name user:1:agemset user:1:name pingguo user:1:age 22\n \nmget user:1:name user:1:age<\/pre>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167254652663b108deb8cbd.png\" class=\"aligncenter\"><\/p>\n<h3>\u4e5d\u3001getset \u5148\u83b7\u53d6\u518d\u8bbe\u7f6e<\/h3>\n<p>\u5c31\u50cf\u5b57\u9762\u610f\u601d\u90a3\u6837\uff0c\u4f1a\u5148get\u503c\uff0c\u7136\u540e\u8fdb\u884cset\u3002<br \/>\u5982\u679c\u4e0d\u5b58\u5728\u503c\uff0c\u5219\u8fd4\u56de<code>nil<\/code>\u3002\u5982\u679c\u5b58\u5728\uff0c\u5c31\u83b7\u53d6\u539f\u6765\u7684\u503c\uff0c\u7136\u540eset\u65b0\u7684\u503c\u3002<\/p>\n<pre>getset db mongodb<\/pre>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167254652663b108dee9cec.png\" class=\"aligncenter\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis\u57fa\u672c\u6570\u636e\u7c7b\u578bStrin&#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-201270","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201270","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=201270"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201270\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201270"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201270"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}