{"id":185158,"date":"2024-11-10T19:13:17","date_gmt":"2024-11-10T11:13:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/185158\/"},"modified":"2024-11-10T19:13:18","modified_gmt":"2024-11-10T11:13:18","slug":"%e4%bd%bf%e7%94%a8redis%e9%81%a0%e7%a8%8b%e5%bf%ab%e6%8d%b7%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%ef%bc%88redis%e9%81%a0%e7%a8%8b%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/185158\/","title":{"rendered":"\u4f7f\u7528Redis\u9060\u7a0b\u5feb\u6377\u6279\u91cf\u522a\u9664\u6578\u64da\uff08redis\u9060\u7a0b\u6279\u91cf\u522a\u9664\uff09"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8redis%e9%81%a0%e7%a8%8b%e5%bf%ab%e6%8d%b7%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%ef%bc%88redis%e9%81%a0%e7%a8%8b%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%ef%bc%89-bHGMxLXCeU\">\u4f7f\u7528Redis\u9060\u7a0b\u5feb\u6377\u6279\u91cf\u522a\u9664\u6578\u64da\uff08redis\u9060\u7a0b\u6279\u91cf\u522a\u9664\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7684\u7ba1\u7406\u548c\u64cd\u4f5c\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u7684\u61c9\u7528\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Redis\u9032\u884c\u9060\u7a0b\u5feb\u6377\u6279\u91cf\u522a\u9664\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-bHGMxLXCeU\">Redis\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis\u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u3002\u7531\u65bc\u5176\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\uff0cRedis\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u5206\u6790\u7b49\u5834\u666f\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a-bHGMxLXCeU\">\u70ba\u4ec0\u9ebc\u9700\u8981\u6279\u91cf\u522a\u9664\u6578\u64da<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u522a\u9664\u5927\u91cf\u7684\u6578\u64da\u3002\u4f8b\u5982\uff0c\u7576\u7528\u6236\u522a\u9664\u5e33\u6236\u6642\uff0c\u53ef\u80fd\u9700\u8981\u522a\u9664\u8207\u8a72\u5e33\u6236\u76f8\u95dc\u7684\u6240\u6709\u6578\u64da\u3002\u50b3\u7d71\u7684\u9010\u500b\u522a\u9664\u65b9\u6cd5\u6548\u7387\u4f4e\u4e0b\uff0c\u7279\u5225\u662f\u5728\u6578\u64da\u91cf\u5927\u7684\u60c5\u6cc1\u4e0b\u3002\u56e0\u6b64\uff0c\u6279\u91cf\u522a\u9664\u6578\u64da\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u9700\u6c42\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e9%80%b2%e8%a1%8c%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%96%b9%e6%b3%95-bHGMxLXCeU\">\u4f7f\u7528Redis\u9032\u884c\u6279\u91cf\u522a\u9664\u7684\u57fa\u672c\u65b9\u6cd5<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u6279\u91cf\u522a\u9664\u6578\u64da\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u5f0f\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8del%e5%91%bd%e4%bb%a4-bHGMxLXCeU\">1. \u4f7f\u7528DEL\u547d\u4ee4<\/h3>\n<p>\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u662f\u4f7f\u7528DEL\u547d\u4ee4\u4f86\u522a\u9664\u6307\u5b9a\u7684\u9375\u3002\u53ef\u4ee5\u4e00\u6b21\u6027\u522a\u9664\u591a\u500b\u9375\uff0c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>DEL key1 key2 key3 ...<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u8981\u522a\u9664\u9375\u540d\u70ba&#8221;user:1&#8243;\u3001&#8221;user:2&#8243;\u548c&#8221;user:3&#8243;\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>DEL user:1 user:2 user:3<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8unlink%e5%91%bd%e4%bb%a4-bHGMxLXCeU\">2. \u4f7f\u7528UNLINK\u547d\u4ee4<\/h3>\n<p>UNLINK\u547d\u4ee4\u8207DEL\u985e\u4f3c\uff0c\u4f46\u5b83\u662f\u975e\u963b\u585e\u7684\uff0c\u9069\u5408\u5728\u9700\u8981\u522a\u9664\u5927\u91cf\u6578\u64da\u6642\u4f7f\u7528\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u5728\u522a\u9664\u904e\u7a0b\u4e2d\u963b\u585e\u5176\u4ed6\u64cd\u4f5c\u3002\u8a9e\u6cd5\u8207DEL\u76f8\u540c\uff1a<\/p>\n<pre><code>UNLINK key1 key2 key3 ...<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4%e9%85%8d%e5%90%88del%e6%88%96unlink-bHGMxLXCeU\">3. \u4f7f\u7528SCAN\u547d\u4ee4\u914d\u5408DEL\u6216UNLINK<\/h3>\n<p>\u7576\u9700\u8981\u522a\u9664\u7684\u9375\u975e\u5e38\u591a\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528SCAN\u547d\u4ee4\u4f86\u904d\u6b77\u9375\uff0c\u7136\u5f8c\u9010\u500b\u522a\u9664\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u4e00\u6b21\u6027\u522a\u9664\u904e\u591a\u9375\u5c0e\u81f4\u7684\u6027\u80fd\u554f\u984c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>SCAN 0 MATCH user:* COUNT 100<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u4ee5&#8221;user:&#8221;\u958b\u982d\u7684\u9375\uff0c\u7136\u5f8c\u53ef\u4ee5\u5c07\u9019\u4e9b\u9375\u50b3\u905e\u7d66DEL\u6216UNLINK\u547d\u4ee4\u9032\u884c\u522a\u9664\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-bHGMxLXCeU\">\u793a\u4f8b\u4ee3\u78bc<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Python\u548cRedis-py\u5eab\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u6279\u91cf\u522a\u9664\u4ee5&#8221;user:&#8221;\u958b\u982d\u7684\u6240\u6709\u9375\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u4f7f\u7528SCAN\u904d\u6b77\u9375\ncursor = 0\nwhile True:\n    cursor, keys = r.scan(cursor, match='user:*', count=100)\n    if keys:\n        r.delete(*keys)  # \u6279\u91cf\u522a\u9664\n    if cursor == 0:\n        break<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-bHGMxLXCeU\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u9032\u884c\u6279\u91cf\u522a\u9664\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u522a\u9664\u7684\u9375\u662f\u6b63\u78ba\u7684\uff0c\u4ee5\u514d\u8aa4\u522a\u91cd\u8981\u6578\u64da\u3002<\/li>\n<li>\u5728\u9ad8\u6d41\u91cf\u7684\u74b0\u5883\u4e2d\uff0c\u5efa\u8b70\u4f7f\u7528UNLINK\u547d\u4ee4\u4ee5\u6e1b\u5c11\u5c0d\u6027\u80fd\u7684\u5f71\u97ff\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u548c\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\uff0c\u4ee5\u4fdd\u6301\u6578\u64da\u5eab\u7684\u9ad8\u6548\u904b\u884c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-bHGMxLXCeU\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528Redis\u9032\u884c\u9060\u7a0b\u5feb\u6377\u6279\u91cf\u522a\u9664\u6578\u64da\u662f\u4e00\u500b\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002\u901a\u904e\u4f7f\u7528DEL\u3001UNLINK\u548cSCAN\u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9748\u6d3b\u5730\u7ba1\u7406\u6578\u64da\uff0c\u63d0\u5347\u61c9\u7528\u7684\u6027\u80fd\u548c\u97ff\u61c9\u901f\u5ea6\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684<a href=\"https:\/\/server.hk\">VPS<\/a>\u89e3\u6c7a\u65b9\u6848\u5c07\u6709\u52a9\u65bc\u66f4\u597d\u5730\u5229\u7528Redis\u7684\u512a\u52e2\uff0c\u5be6\u73fe\u66f4\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528Redis\u9060\u7a0b\u5feb\u6377\u6279\u91cf\u522a\u9664\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u7c21\u5316\u64cd\u4f5c\u6d41\u7a0b\uff0c\u5feb\u901f\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da\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-185158","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185158","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=185158"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185158\/revisions"}],"predecessor-version":[{"id":185159,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185158\/revisions\/185159"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=185158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=185158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=185158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}