{"id":152687,"date":"2024-11-02T01:11:21","date_gmt":"2024-11-01T17:11:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/152687\/"},"modified":"2024-11-02T01:11:22","modified_gmt":"2024-11-01T17:11:22","slug":"%e6%9f%a5%e7%9f%a5-redis-%e4%b8%ad-key-%e7%9a%84%e5%ad%98%e5%84%b2%e5%a4%a7%e5%b0%8f%ef%bc%88redis-%e6%9f%a5%e8%a9%a2-key-%e5%a4%a7%e5%b0%8f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/152687\/","title":{"rendered":"\u67e5\u77e5 Redis \u4e2d key \u7684\u5b58\u5132\u5927\u5c0f\uff08Redis \u67e5\u8a62 key \u5927\u5c0f\uff09"},"content":{"rendered":"<h1 id=\"%e6%9f%a5%e7%9f%a5-redis-%e4%b8%ad-key-%e7%9a%84%e5%ad%98%e5%84%b2%e5%a4%a7%e5%b0%8f%ef%bc%88redis-%e6%9f%a5%e8%a9%a2-key-%e5%a4%a7%e5%b0%8f%ef%bc%89-uLsevmvXWt\">\u67e5\u77e5 Redis \u4e2d key \u7684\u5b58\u5132\u5927\u5c0f\uff08Redis \u67e5\u8a62 key \u5927\u5c0f\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u3002\u4e86\u89e3 Redis \u4e2d key \u7684\u5b58\u5132\u5927\u5c0f\u5c0d\u65bc\u512a\u5316\u6027\u80fd\u548c\u8cc7\u6e90\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u67e5\u8a62 Redis \u4e2d key \u7684\u5927\u5c0f\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u6280\u5de7\u3002<\/p>\n<h2 id=\"redis-%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b-uLsevmvXWt\">Redis \u4e2d\u7684\u6578\u64da\u7d50\u69cb<\/h2>\n<p>Redis \u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u3002\u6bcf\u7a2e\u6578\u64da\u7d50\u69cb\u7684\u5b58\u5132\u65b9\u5f0f\u548c\u5927\u5c0f\u8a08\u7b97\u65b9\u6cd5\u90fd\u4e0d\u540c\uff0c\u56e0\u6b64\u5728\u67e5\u8a62 key \u7684\u5927\u5c0f\u6642\uff0c\u9700\u8981\u6839\u64da\u5177\u9ad4\u7684\u6578\u64da\u985e\u578b\u9032\u884c\u5206\u6790\u3002<\/p>\n<h3 id=\"%e5%ad%97%e7%ac%a6%e4%b8%b2%ef%bc%88string%ef%bc%89-uLsevmvXWt\">\u5b57\u7b26\u4e32\uff08String\uff09<\/h3>\n<p>\u5b57\u7b26\u4e32\u662f Redis \u4e2d\u6700\u57fa\u672c\u7684\u6578\u64da\u985e\u578b\u3002\u8981\u67e5\u8a62\u4e00\u500b\u5b57\u7b26\u4e32\u985e\u578b\u7684 key \u7684\u5927\u5c0f\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>STRLEN<\/code> \u547d\u4ee4\u3002\u9019\u500b\u547d\u4ee4\u8fd4\u56de\u6307\u5b9a key \u7684\u5b57\u7b26\u4e32\u9577\u5ea6\uff08\u4ee5\u5b57\u7bc0\u70ba\u55ae\u4f4d\uff09\u3002<\/p>\n<pre><code>STRLEN mykey<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u6709\u4e00\u500b key \u70ba <code>mykey<\/code> \u7684\u5b57\u7b26\u4e32\uff0c\u57f7\u884c\u4e0a\u8ff0\u547d\u4ee4\u5c07\u8fd4\u56de\u8a72\u5b57\u7b26\u4e32\u7684\u5b57\u7bc0\u6578\u3002<\/p>\n<h3 id=\"%e5%93%88%e5%b8%8c%ef%bc%88hash%ef%bc%89-uLsevmvXWt\">\u54c8\u5e0c\uff08Hash\uff09<\/h3>\n<p>\u54c8\u5e0c\u662f\u4e00\u7a2e\u9375\u503c\u5c0d\u7684\u96c6\u5408\uff0c\u9069\u5408\u7528\u65bc\u5b58\u5132\u5c0d\u8c61\u3002\u8981\u67e5\u8a62\u54c8\u5e0c\u985e\u578b\u7684 key \u7684\u5927\u5c0f\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>HLEN<\/code> \u547d\u4ee4\u4f86\u7372\u53d6\u54c8\u5e0c\u4e2d\u5b57\u6bb5\u7684\u6578\u91cf\uff0c\u7136\u5f8c\u4f7f\u7528 <code>HGET<\/code> \u547d\u4ee4\u9010\u500b\u7372\u53d6\u5b57\u6bb5\u7684\u5927\u5c0f\u3002<\/p>\n<pre><code>HLEN myhash<\/code><\/pre>\n<p>\u63a5\u8457\uff0c\u5c0d\u65bc\u6bcf\u500b\u5b57\u6bb5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u8a62\u5176\u5927\u5c0f\uff1a<\/p>\n<pre><code>HGET myhash fieldname<\/code><\/pre>\n<h3 id=\"%e5%88%97%e8%a1%a8%ef%bc%88list%ef%bc%89-uLsevmvXWt\">\u5217\u8868\uff08List\uff09<\/h3>\n<p>\u5217\u8868\u662f\u4e00\u7cfb\u5217\u6709\u5e8f\u7684\u5b57\u7b26\u4e32\u3002\u8981\u67e5\u8a62\u5217\u8868\u7684\u5927\u5c0f\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>LLEN<\/code> \u547d\u4ee4\uff0c\u9019\u5c07\u8fd4\u56de\u5217\u8868\u4e2d\u5143\u7d20\u7684\u6578\u91cf\u3002<\/p>\n<pre><code>LLEN mylist<\/code><\/pre>\n<p>\u5982\u679c\u9700\u8981\u7372\u53d6\u6bcf\u500b\u5143\u7d20\u7684\u5927\u5c0f\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>LRANGE<\/code> \u547d\u4ee4\u4f86\u7372\u53d6\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff0c\u7136\u5f8c\u9010\u500b\u8a08\u7b97\u5176\u5927\u5c0f\u3002<\/p>\n<pre><code>LRANGE mylist 0 -1<\/code><\/pre>\n<h3 id=\"%e9%9b%86%e5%90%88%ef%bc%88set%ef%bc%89%e5%92%8c%e6%9c%89%e5%ba%8f%e9%9b%86%e5%90%88%ef%bc%88sorted-set%ef%bc%89-uLsevmvXWt\">\u96c6\u5408\uff08Set\uff09\u548c\u6709\u5e8f\u96c6\u5408\uff08Sorted Set\uff09<\/h3>\n<p>\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u7684\u67e5\u8a62\u65b9\u5f0f\u8207\u5217\u8868\u985e\u4f3c\u3002\u53ef\u4ee5\u4f7f\u7528 <code>SCARD<\/code> \u548c <code>ZCARD<\/code> \u547d\u4ee4\u4f86\u7372\u53d6\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u7684\u5143\u7d20\u6578\u91cf\u3002<\/p>\n<pre><code>SCARD myset<\/code><\/pre>\n<pre><code>ZCARD mysortedset<\/code><\/pre>\n<p>\u8981\u7372\u53d6\u6bcf\u500b\u5143\u7d20\u7684\u5927\u5c0f\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>SMEMBERS<\/code> \u548c <code>ZRange<\/code> \u547d\u4ee4\u3002<\/p>\n<h2 id=\"%e8%a8%88%e7%ae%97-key-%e7%9a%84%e7%b8%bd%e5%a4%a7%e5%b0%8f-uLsevmvXWt\">\u8a08\u7b97 key \u7684\u7e3d\u5927\u5c0f<\/h2>\n<p>\u5982\u679c\u9700\u8981\u8a08\u7b97\u4e00\u500b key \u7684\u7e3d\u5927\u5c0f\uff0c\u53ef\u4ee5\u5c07\u5404\u500b\u90e8\u5206\u7684\u5927\u5c0f\u76f8\u52a0\u3002\u9019\u53ef\u4ee5\u901a\u904e\u7de8\u5beb\u4e00\u500b\u7c21\u55ae\u7684\u8173\u672c\u4f86\u5be6\u73fe\uff0c\u8a72\u8173\u672c\u5c07\u904d\u6b77\u6240\u6709\u7684 key\uff0c\u4e26\u8a08\u7b97\u5b83\u5011\u7684\u5927\u5c0f\u3002<\/p>\n<pre><code>\n# \u4f7f\u7528 Python \u548c redis-py \u5eab\nimport redis\n\nr = redis.Redis(host='localhost', port=6379, db=0)\n\ntotal_size = 0\nfor key in r.keys():\n    total_size += r.object('MEMORY', key)\n\nprint(f'Total size of all keys: {total_size} bytes')\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-uLsevmvXWt\">\u7d50\u8ad6<\/h2>\n<p>\u4e86\u89e3\u5982\u4f55\u67e5\u8a62 Redis \u4e2d key \u7684\u5b58\u5132\u5927\u5c0f\u5c0d\u65bc\u6027\u80fd\u512a\u5316\u548c\u8cc7\u6e90\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4f7f\u7528 Redis \u63d0\u4f9b\u7684\u5404\u7a2e\u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u7372\u53d6\u4e0d\u540c\u6578\u64da\u985e\u578b\u7684\u5927\u5c0f\u4fe1\u606f\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\u3002\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6548\u7387\uff0c\u9084\u80fd\u6709\u6548\u7ba1\u7406\u5b58\u5132\u8cc7\u6e90\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 Redis \u5be6\u4f8b\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f\u5176\u4ed6\u5730\u5340\u7684\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u67e5\u8a62 Redis \u4e2d key \u7684\u5b58\u5132\u5927\u5c0f\uff0c\u638c\u63e1\u6578\u64da\u7ba1\u7406\u6280\u5de7\uff0c\u512a\u5316\u6027\u80fd\uff0c\u63d0\u5347\u61c9\u7528\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-152687","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152687","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=152687"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152687\/revisions"}],"predecessor-version":[{"id":152688,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152687\/revisions\/152688"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=152687"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=152687"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=152687"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}