{"id":161189,"date":"2024-11-04T04:21:27","date_gmt":"2024-11-03T20:21:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/161189\/"},"modified":"2024-11-04T04:21:28","modified_gmt":"2024-11-03T20:21:28","slug":"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e6%a8%a1%e7%b3%8a%e9%8d%b5%e5%8c%b9%e9%85%8d%e5%af%a6%e8%b8%90%ef%bc%88redis-%e6%a8%a1%e7%b3%8a%e5%8c%b9%e9%85%8d%e9%8d%b5%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/161189\/","title":{"rendered":"\u57fa\u65bc Redis \u7684\u6a21\u7cca\u9375\u5339\u914d\u5be6\u8e10\uff08redis \u6a21\u7cca\u5339\u914d\u9375\uff09"},"content":{"rendered":"<h1 id=\"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e6%a8%a1%e7%b3%8a%e9%8d%b5%e5%8c%b9%e9%85%8d%e5%af%a6%e8%b8%90%ef%bc%88redis-%e6%a8%a1%e7%b3%8a%e5%8c%b9%e9%85%8d%e9%8d%b5%ef%bc%89-oCpdOGPlcG\">\u57fa\u65bc Redis \u7684\u6a21\u7cca\u9375\u5339\u914d\u5be6\u8e10\uff08redis \u6a21\u7cca\u5339\u914d\u9375\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u5feb\u901f\u4e14\u9ad8\u6548\u7684\u6578\u64da\u5b58\u53d6\u6210\u70ba\u4e86\u61c9\u7528\u7a0b\u5e8f\u6027\u80fd\u7684\u95dc\u9375\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u7d50\u69cb\u548c\u64cd\u4f5c\uff0c\u7279\u5225\u9069\u5408\u7528\u65bc\u9700\u8981\u5feb\u901f\u67e5\u8a62\u7684\u5834\u666f\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u57fa\u65bc Redis \u7684\u6a21\u7cca\u9375\u5339\u914d\u6280\u8853\uff0c\u4e26\u63d0\u4f9b\u5be6\u8e10\u4e2d\u7684\u4e00\u4e9b\u793a\u4f8b\u548c\u5efa\u8b70\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%a8%a1%e7%b3%8a%e9%8d%b5%e5%8c%b9%e9%85%8d%ef%bc%9f-oCpdOGPlcG\">\u4ec0\u9ebc\u662f\u6a21\u7cca\u9375\u5339\u914d\uff1f<\/h2>\n<p>\u6a21\u7cca\u9375\u5339\u914d\u662f\u6307\u5728\u67e5\u8a62\u6578\u64da\u6642\uff0c\u4f7f\u7528\u90e8\u5206\u9375\u540d\u4f86\u7372\u53d6\u7b26\u5408\u689d\u4ef6\u7684\u6240\u6709\u9375\u3002\u9019\u5728\u9700\u8981\u67e5\u627e\u5927\u91cf\u9375\u6642\u7279\u5225\u6709\u7528\uff0c\u56e0\u70ba\u7528\u6236\u4e0d\u5fc5\u8a18\u4f4f\u5b8c\u6574\u7684\u9375\u540d\u3002Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u6a21\u7cca\u9375\u5339\u914d\uff0c\u6700\u5e38\u7528\u7684\u65b9\u5f0f\u662f\u4f7f\u7528 <code>KEYS<\/code> \u547d\u4ee4\u3002<\/p>\n<h2 id=\"redis-%e4%b8%ad%e7%9a%84-keys-%e5%91%bd%e4%bb%a4-oCpdOGPlcG\">Redis \u4e2d\u7684 KEYS \u547d\u4ee4<\/h2>\n<p><code>KEYS<\/code> \u547d\u4ee4\u5141\u8a31\u7528\u6236\u6839\u64da\u6a21\u5f0f\u67e5\u8a62\u9375\u3002\u6a21\u5f0f\u53ef\u4ee5\u5305\u542b\u901a\u914d\u7b26\uff0c\u4f8b\u5982 <code>*<\/code> \u4ee3\u8868\u4efb\u610f\u5b57\u7b26\uff0c<code>?<\/code> \u4ee3\u8868\u55ae\u500b\u5b57\u7b26\u3002\u4ee5\u4e0b\u662f <code>KEYS<\/code> \u547d\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>KEYS pattern<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u60f3\u67e5\u627e\u6240\u6709\u4ee5 &#8220;user:&#8221; \u958b\u982d\u7684\u9375\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>KEYS user:*<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u6240\u6709\u4ee5 &#8220;user:&#8221; \u958b\u982d\u7684\u9375\u540d\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-keys-%e5%91%bd%e4%bb%a4%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-oCpdOGPlcG\">\u4f7f\u7528 KEYS \u547d\u4ee4\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u96d6\u7136 <code>KEYS<\/code> \u547d\u4ee4\u975e\u5e38\u65b9\u4fbf\uff0c\u4f46\u5728\u751f\u7522\u74b0\u5883\u4e2d\u4f7f\u7528\u6642\u9700\u8981\u8b39\u614e\u3002\u56e0\u70ba <code>KEYS<\/code> \u547d\u4ee4\u6703\u904d\u6b77\u6574\u500b\u9375\u7a7a\u9593\uff0c\u9019\u5728\u9375\u6578\u91cf\u9f90\u5927\u6642\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u554f\u984c\u3002\u70ba\u4e86\u907f\u514d\u9019\u7a2e\u60c5\u6cc1\uff0c\u5efa\u8b70\u4f7f\u7528 <code>SCAN<\/code> \u547d\u4ee4\u4f86\u9032\u884c\u589e\u91cf\u904d\u6b77\u3002<\/p>\n<h2 id=\"scan-%e5%91%bd%e4%bb%a4%e7%9a%84%e4%bd%bf%e7%94%a8-oCpdOGPlcG\">SCAN \u547d\u4ee4\u7684\u4f7f\u7528<\/h2>\n<p><code>SCAN<\/code> \u547d\u4ee4\u63d0\u4f9b\u4e86\u4e00\u7a2e\u66f4\u5b89\u5168\u7684\u65b9\u5f0f\u4f86\u904d\u6b77\u9375\u3002\u5b83\u4e0d\u6703\u4e00\u6b21\u6027\u8fd4\u56de\u6240\u6709\u9375\uff0c\u800c\u662f\u5206\u6279\u8fd4\u56de\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5c0d\u6027\u80fd\u7684\u5f71\u97ff\u3002\u4ee5\u4e0b\u662f <code>SCAN<\/code> \u547d\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>SCAN cursor [MATCH pattern] [COUNT count]<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>cursor<\/code> \u662f\u6e38\u6a19\uff0c<code>MATCH<\/code> \u7528\u65bc\u6307\u5b9a\u5339\u914d\u6a21\u5f0f\uff0c<code>COUNT<\/code> \u7528\u65bc\u6307\u5b9a\u6bcf\u6b21\u8fd4\u56de\u7684\u9375\u6578\u91cf\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u547d\u4ee4\u5c07\u8fd4\u56de\u6240\u6709\u4ee5 &#8220;user:&#8221; \u958b\u982d\u7684\u9375\uff1a<\/p>\n<pre><code>SCAN 0 MATCH user:* COUNT 10<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u6700\u591a 10 \u500b\u4ee5 &#8220;user:&#8221; \u958b\u982d\u7684\u9375\uff0c\u4e26\u4e14\u6bcf\u6b21\u8abf\u7528\u90fd\u6703\u8fd4\u56de\u65b0\u7684\u6e38\u6a19\uff0c\u76f4\u5230\u6e38\u6a19\u70ba 0 \u6642\u8868\u793a\u904d\u6b77\u7d50\u675f\u3002<\/p>\n<h2 id=\"%e5%af%a6%e8%b8%90%e4%b8%ad%e7%9a%84%e6%87%89%e7%94%a8%e6%a1%88%e4%be%8b-oCpdOGPlcG\">\u5be6\u8e10\u4e2d\u7684\u61c9\u7528\u6848\u4f8b<\/h2>\n<p>\u6a21\u7cca\u9375\u5339\u914d\u5728\u8a31\u591a\u61c9\u7528\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\u3002\u4f8b\u5982\uff0c\u5728\u4e00\u500b\u793e\u4ea4\u5a92\u9ad4\u61c9\u7528\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u67e5\u627e\u6240\u6709\u7528\u6236\u7684\u8cc7\u6599\u3002\u4f7f\u7528 <code>KEYS<\/code> \u6216 <code>SCAN<\/code> \u547d\u4ee4\u53ef\u4ee5\u8f15\u9b06\u7372\u53d6\u6240\u6709\u7528\u6236\u8cc7\u6599\u7684\u9375\uff0c\u7136\u5f8c\u9032\u884c\u9032\u4e00\u6b65\u7684\u8655\u7406\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Python \u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 Redis \u7684 <code>SCAN<\/code> \u547d\u4ee4\u4f86\u67e5\u627e\u6240\u6709\u4ee5 &#8220;user:&#8221; \u958b\u982d\u7684\u9375\uff1a<\/p>\n<pre><code>import redis\n\nr = redis.Redis(host='localhost', port=6379, db=0)\n\ncursor = 0\nwhile True:\n    cursor, keys = r.scan(cursor, match='user:*', count=10)\n    for key in keys:\n        print(key)\n    if cursor == 0:\n        break\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-oCpdOGPlcG\">\u7e3d\u7d50<\/h2>\n<p>\u57fa\u65bc Redis \u7684\u6a21\u7cca\u9375\u5339\u914d\u6280\u8853\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u6578\u64da\u67e5\u8a62\u65b9\u5f0f\u3002\u96d6\u7136 <code>KEYS<\/code> \u547d\u4ee4\u7c21\u55ae\u6613\u7528\uff0c\u4f46\u5728\u751f\u7522\u74b0\u5883\u4e2d\u61c9\u512a\u5148\u8003\u616e\u4f7f\u7528 <code>SCAN<\/code> \u547d\u4ee4\u4ee5\u907f\u514d\u6027\u80fd\u554f\u984c\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u9019\u4e9b\u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u67e5\u8a62\u5927\u91cf\u6578\u64da\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 \u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u57fa\u65bc Redis \u7684\u6a21\u7cca\u9375\u5339\u914d\u6280\u8853\uff0c\u63d0\u5347\u6578\u64da\u6aa2\u7d22\u6548\u7387\uff0c\u5be6\u73fe\u9748\u6d3b\u7684\u9375\u67e5\u8a62\u89e3\u6c7a\u65b9\u6848\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-161189","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161189","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=161189"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161189\/revisions"}],"predecessor-version":[{"id":161190,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161189\/revisions\/161190"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=161189"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=161189"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=161189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}