{"id":34126,"date":"2023-03-09T22:27:59","date_gmt":"2023-12-23T04:20:23","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90redis%e3%80%91keys%e5%91%bd%e4%bb%a4%e5%ad%98%e5%9c%a8%e7%9a%84%e9%a3%8e%e9%99%a9%e4%b8%8e%e9%80%9a%e8%bf%87scan%e5%91%bd%e4%bb%a4%e8%bf%9b%e8%a1%8c%e5%ae%89%e5%85%a8%e5%a4%84%e7%90%86\/"},"modified":"2024-04-29T18:10:00","modified_gmt":"2024-04-29T10:10:00","slug":"%e3%80%90redis%e3%80%91keys%e5%91%bd%e4%bb%a4%e5%ad%98%e5%9c%a8%e7%9a%84%e9%a3%8e%e9%99%a9%e4%b8%8e%e9%80%9a%e8%bf%87scan%e5%91%bd%e4%bb%a4%e8%bf%9b%e8%a1%8c%e5%ae%89%e5%85%a8%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90redis%e3%80%91keys%e5%91%bd%e4%bb%a4%e5%ad%98%e5%9c%a8%e7%9a%84%e9%a3%8e%e9%99%a9%e4%b8%8e%e9%80%9a%e8%bf%87scan%e5%91%bd%e4%bb%a4%e8%bf%9b%e8%a1%8c%e5%ae%89%e5%85%a8%e5%a4%84%e7%90%86\/","title":{"rendered":"\u3010Redis\u3011KEYS\u547d\u4ee4\u5b58\u5728\u7684\u98ce\u9669\u4e0e\u901a\u8fc7SCAN\u547d\u4ee4\u8fdb\u884c\u5b89\u5168\u5904\u7406"},"content":{"rendered":"<p>\u6211\u5c3d\u53ef\u80fd\u7b80\u6d01\u5730\u4ecb\u7ecdRedis\u4e2dKEYS\u547d\u4ee4\u7684\u5371\u9669\u6027\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528SCAN\u547d\u4ee4\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<h1>Redis\uff0cKEYS\u662f\u4ec0\u4e48<\/h1>\n<p>\u5982\u679c\u4f60\u80fd\u7406\u89e3\uff0c\u8bf7\u8df3\u8fc7\u3002<\/p>\n<p>Redis\u662f\u4e00\u79cdKVS\uff08\u952e\u503c\u5b58\u50a8\uff09\u6570\u636e\u5e93\uff0c\u5b83\u662f\u4e00\u79cd\u5f00\u6e90\u7684\uff08BSD\u8bb8\u53ef\u8bc1\uff09\u5185\u5b58\u6570\u636e\u7ed3\u6784\u5b58\u50a8\uff08\u4e0d\u662f\u5b58\u50a8\u5728\u78c1\u76d8\u4e0a\uff0c\u800c\u662f\u5728\u4e3b\u5185\u5b58\u4e2d\u5904\u7406\uff09\u3002<br \/>\n\u636e\u6211\u6240\u77e5\uff0c\u5b83\u7ecf\u5e38\u7528\u4e8e\u5b58\u50a8Web\u5e38\u89c1\u7684\u7f13\u5b58\u3002<\/p>\n<p>\u8fd9\u4e2a\u7ed3\u6784\u975e\u5e38\u7b80\u5355\uff0c\u5bf9\u4e8e\u4e00\u4e2aKey\uff0c\u53ea\u6709\u4e00\u4e2a\u5bf9\u5e94\u7684Value\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d1b7e37434c4406c0e64c\/5-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-06-26 19.06.13.png\" \/><\/div>\n<p>\u5904\u7406\u7f13\u5b58\u65f6\uff0c\u5c06\u201c\u9875\u9762\u7ec4\u4ef6\u7684URL\u201d\u4f5c\u4e3a\u952e\uff0c\u5c06\u201cCSS\u548cJavaScript\u7b49\u5185\u5bb9\u201d\u4fdd\u5b58\u4e3a\u503c\u3002<\/p>\n<p>KEYS\u662f\u4e00\u79cd\u7528\u4e8e\u641c\u7d22\u4e0e\u7279\u5b9a\u6a21\u5f0f\u5339\u914d\u7684Key\u7684\u65b9\u6cd5\uff08Redis(KEYS)\uff09\u3002<br \/>\n\u7531\u4e8e\u9700\u8981\u4e0e\u6240\u6709\u7684Key\u548c\u6a21\u5f0f\u8fdb\u884c\u6bd4\u8f83\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aO(N)\uff08N\u4e3a\u6570\u636e\u5e93\u4e2dKey\u7684\u6570\u91cf\uff09\u3002<br \/>\n\u6362\u53e5\u8bdd\u8bf4\uff0c\u8ba1\u7b97\u590d\u6742\u5ea6\u76f4\u63a5\u53d7\u4fdd\u5b58\u7684Key\u6570\u91cf\u7684\u5f71\u54cd\u3002<\/p>\n<p>\u4ee5\u4e0b\u662fKEYS\u547d\u4ee4\u7684\u793a\u4f8b\u3002<\/p>\n<pre class=\"post-pre\"><code>redis&gt; KEYS *name*\r\n1) \"lastname\"\r\n2) \"firstname\"\r\n\r\nredis&gt; KEYS a??\r\n1) \"age\"\r\n\r\nredis&gt; KEYS *\r\n1) \"age\"\r\n2) \"lastname\"\r\n3) \"firstname\"\r\n<\/code><\/pre>\n<h1>\u901a\u8fc7\u4f7f\u7528KEYS\u8fdb\u884c\u5168\u5c40\u641c\u7d22\u7684\u98ce\u9669<\/h1>\n<blockquote><p>\u5c3d\u7ba1\u8fd9\u4e2a\u64cd\u4f5c\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aO(N)\uff0c\u4f46\u5e38\u6570\u65f6\u95f4\u76f8\u5f53\u4f4e\u3002\u4f8b\u5982\uff0cRedis\u5728\u4e00\u53f0\u5165\u95e8\u7ea7\u7b14\u8bb0\u672c\u4e0a\u53ef\u4ee5\u572840\u6beb\u79d2\u5185\u626b\u63cf\u4e00\u4e2a100\u4e07\u4e2a\u952e\u7684\u6570\u636e\u5e93\u3002<\/p><\/blockquote>\n<p>\u6839\u636e Redis \u7684\u516c\u5f0f\u53c2\u8003\u8d44\u6599(KEYS)\uff0c\u7b80\u5355\u7684\u5f15\u7528\u5904\u7406\u901f\u5ea6\u4f3c\u4e4e\u5f88\u5feb\u3002<\/p>\n<p>\u5f53\u4fdd\u5b58\u7684\u952e\u7684\u6570\u91cf\u8fbe\u5230\u201c\u6570\u767e\u4e07\u3001\u6570\u5343\u4e07\u201d\u8fd9\u6837\u5e9e\u5927\u7684\u6570\u5b57\u65f6\uff0c\u5c31\u4f1a\u51fa\u73b0\u95ee\u9898\u3002\u8fd9\u79cd\u60b2\u5267\u7684\u987a\u5e8f\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d1b7e37434c4406c0e64c\/14-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-06-26 22.28.40.png\" \/><\/div>\n<h3>KEYS\u7684\u54cd\u5e94\u592a\u957f\uff0c\u5bfc\u81f4Redis\u65e0\u6cd5\u8fd4\u56de\u4efb\u4f55\u7ed3\u679c\u3002<\/h3>\n<p>Redis\u670d\u52a1\u5668\u901a\u5e38\u53ea\u80fd\u8fdb\u884c\u5355\u4e2a\u64cd\u4f5c\uff0c\u5b83\u662f\u5355\u7ebf\u7a0b\u7684\u3002\u56e0\u6b64\uff0c\u5728\u67e5\u8be2\u201c\u6570\u767e\u4e07\u3001\u6570\u5343\u4e07\u201d\u8fd9\u6837\u5e9e\u5927\u6570\u91cf\u7684\u6570\u636e\u65f6\uff0c\u76f4\u5230\u8be5\u64cd\u4f5c\u5b8c\u6210\u624d\u80fd\u8fd4\u56de\u54cd\u5e94\u3002<\/p>\n<h3>2. \u5176\u4ed6\u5411Redis\u53d1\u9001\u7684GET\u8bf7\u6c42\u7b49\u88ab\u5835\u585e\u4f4f\u3002<\/h3>\n<p>Redis\u5728\u5904\u7406\u201c\u6570\u767e\u4e07\u3001\u6570\u5343\u4e07\u201d\u6570\u91cf\u7ea7\u7684\u5f15\u7528\u65f6\uff0c\u5bf9\u4e8eRedis\u670d\u52a1\u5668\u7684\u8bf7\u6c42\u5c06\u4e0d\u65ad\u589e\u52a0\u3002\u987a\u4fbf\u8bf4\u4e00\u4e0b\uff0c\u5982\u679cRedis\u662f\u591a\u7ebf\u7a0b\uff08\u4e0e\u5355\u7ebf\u7a0b\u76f8\u53cd\uff0c\u80fd\u591f\u8fdb\u884c\u5e76\u884c\u5904\u7406\uff09\uff0c\u5373\u4f7f\u6709\u4e00\u4e2a\u91cd\u578b\u8bf7\u6c42\uff0c\u4f46\u8f7b\u578b\u5904\u7406\u4ecd\u7136\u53ef\u4ee5\u8fde\u7eed\u54cd\u5e94\uff0c\u4ece\u800c\u5b9e\u73b0\u6700\u4f4e\u9650\u5ea6\u7684\u64cd\u4f5c\uff08\u7a0d\u540e\u8be6\u7ec6\u4ecb\u7ecd\uff09\u3002<\/p>\n<h3>3. \u671f\u671bRedis\u54cd\u5e94\u7684\u5e94\u7528\u7aef\uff08\u5982Rails\uff09\u51fa\u73b0\u5835\u585e\u3002<\/h3>\n<p>Redis\u65e0\u6cd5\u957f\u65f6\u95f4\u8fd4\u56de\u54cd\u5e94\uff0c\u56e0\u6b64\u5e94\u7528\u7a0b\u5e8f\u5c06\u65e0\u6cd5\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\u7684\u65f6\u95f4\u589e\u52a0\uff0c\u5bfc\u81f4\u5835\u585e\u3002<\/p>\n<h3>4. \u65e0\u6cd5\u5411\u7528\u6237\u8fd4\u56de\u8bf7\u6c42\uff0c\u6700\u7cdf\u7cd5\u7684\u60c5\u51b5\u4e0b\u670d\u52a1\u5668\u5d29\u6e83\u3002<\/h3>\n<p>\u5f53\u54cd\u5e94\u65f6\u95f4\u589e\u52a0\u65f6\uff0c\u670d\u52a1\u5668\u7684\u8d1f\u8f7d\u4e5f\u4f1a\u589e\u52a0\u3002\u7ed3\u679c\uff0c\u5c06\u82b1\u8d39\u66f4\u591a\u65f6\u95f4\u6765\u5904\u7406\u7528\u6237\u7684\u8bf7\u6c42\uff0c\u6700\u574f\u7684\u60c5\u51b5\u662f\u7531\u4e8e\u9ad8\u8d1f\u8f7d\u5bfc\u81f4\u670d\u52a1\u5668\u5d29\u6e83\u7684\u98ce\u9669\u53d8\u5f97\u66f4\u9ad8\u3002<\/p>\n<p>\u987a\u4fbf\u63d0\u4e00\u53e5\uff0c\u7531\u4e8e\u8003\u8651\u5230\u8fd9\u79cd\u5371\u9669\u6027\uff0c\u5b98\u65b9\u53c2\u8003\u8d44\u6599\u4e2d\u4e5f\u4e0d\u63a8\u8350\u4f7f\u7528\u3002<\/p>\n<blockquote><p>\u8b66\u544a\uff1a\u8003\u8651\u5c06KEYS\u4f5c\u4e3a\u4ec5\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u6781\u5ea6\u8c28\u614e\u4f7f\u7528\u7684\u547d\u4ee4\u3002\u5728\u6267\u884c\u5927\u578b\u6570\u636e\u5e93\u65f6\uff0c\u5b83\u53ef\u80fd\u4f1a\u7834\u574f\u6027\u80fd\u3002\u6b64\u547d\u4ee4\u65e8\u5728\u7528\u4e8e\u8c03\u8bd5\u548c\u7279\u6b8a\u64cd\u4f5c\uff0c\u6bd4\u5982\u66f4\u6539\u952e\u7684\u5e03\u5c40\u3002\u4e0d\u8981\u5728\u666e\u901a\u5e94\u7528\u4ee3\u7801\u4e2d\u4f7f\u7528KEYS\u3002\u5982\u679c\u60a8\u60f3\u8981\u5728\u952e\u7a7a\u95f4\u7684\u5b50\u96c6\u4e2d\u67e5\u627e\u952e\u7684\u65b9\u6cd5\uff0c\u8003\u8651\u4f7f\u7528SCAN\u6216sets\u3002<\/p><\/blockquote>\n<h1>\u4f7f\u7528\u626b\u63cf\uff0c\u5728\u5149\u6807\u57fa\u7840\u4e0a\u8fdb\u884c\u68c0\u7d22\u3002<\/h1>\n<p>\u5728\u8ba4\u8bc6\u5230\u901a\u8fc7KEYS\u83b7\u53d6\u5bc6\u94a5\u5b58\u5728\u7684\u98ce\u9669\u4e4b\u540e\uff0c\u6211\u4eec\u6765\u8003\u8651\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<p>\u6b63\u5982\u4e4b\u524d\u7b80\u5355\u63d0\u5230\u7684\uff0c\u5982\u679c\u662f\u4f7f\u7528\u591a\u7ebf\u7a0b\uff0c\u5373\u4f7f\u6709\u4e00\u4e2a\u91cd\u578b\u8bf7\u6c42\u4e5f\u4e0d\u4f1a\u9020\u6210\u5835\u585e\u3002\u7136\u800c\uff0c\u8fd9\u5728\u73b0\u5b9e\u4e2d\u662f\u4e0d\u53ef\u80fd\u7684\uff0c\u56e0\u6b64\u6211\u4eec\u9700\u8981\u8003\u8651\u53e6\u4e00\u79cd\u65b9\u6cd5\u3002\u8fd9\u5c31\u662f\u63a8\u8350\u4f7f\u7528\u7684\u5b98\u65b9SCAN\u65b9\u6cd5\u3002<\/p>\n<p>SCAN\u4e0eKEYS\u7c7b\u4f3c\uff0c\u662f\u4e00\u79cd\u641c\u7d22\u5339\u914d\u6a21\u5f0f\u7684\u952e\u7684\u65b9\u6cd5\u3002 SCAN\u7684\u7279\u70b9\u662f\u901a\u8fc7\u6e38\u6807\u8fdb\u884c\u5f15\u7528\u5904\u7406\u3002\u8fd9\u6837\u53ef\u4ee5\u5206\u5272\u5f15\u7528\u800c\u4e0d\u662f\u4e00\u6b21\u6027\u5f15\u7528\u3002\u8fd9\u91cc\u8bf4\u7684\u6e38\u6807\u662f\u6307\u201c\u6307\u793a\u4e0b\u4e00\u4e2a\u5f15\u7528\u4f4d\u7f6e\u7684\u4e1c\u897f\u201d\uff0c\u5982\u679c\u6ca1\u6709\u4e0b\u4e00\u4e2a\u6e38\u6807\uff08\u5f15\u7528\u7ed3\u675f\uff09\uff0cSCAN\u5c06\u8fd4\u56de\u201c0\u201d\u3002\u8be6\u89c1Redis(SCAN)\u3002<\/p>\n<p>\u626b\u63cf\u547d\u4ee4\u7684\u793a\u4f8b\u3002<\/p>\n<pre class=\"post-pre\"><code>redis&gt; scan 0\r\n1) \"17\"\r\n2)  1) \"key:12\"\r\n    2) \"key:8\"\r\n    3) \"key:4\"\r\n    4) \"key:14\"\r\n    5) \"key:16\"\r\n    6) \"key:17\"\r\n    7) \"key:15\"\r\n    8) \"key:10\"\r\n    9) \"key:3\"\r\n   10) \"key:7\"\r\n   11) \"key:1\"\r\n\r\nredis&gt; scan 17\r\n1) \"0\"\r\n2) 1) \"key:5\"\r\n   2) \"key:18\"\r\n   3) \"key:0\"\r\n   4) \"key:2\"\r\n   5) \"key:19\"\r\n   6) \"key:13\"\r\n   7) \"key:6\"\r\n   8) \"key:9\"\r\n   9) 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