{"id":128931,"date":"2024-10-26T17:50:20","date_gmt":"2024-10-26T09:50:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/128931\/"},"modified":"2024-10-26T17:50:21","modified_gmt":"2024-10-26T09:50:21","slug":"redis%e5%af%a6%e7%8f%be%e7%b4%b0%e7%af%80%e5%bc%b7%e5%a4%a7%e7%9a%84%e6%a8%a1%e7%b3%8a%e5%88%aa%e9%99%a4%ef%bc%88redis%e7%9a%84%e6%a8%a1%e7%b3%8a%e5%88%aa%e9%99%a4%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/128931\/","title":{"rendered":"Redis\u5be6\u73fe\u7d30\u7bc0\u5f37\u5927\u7684\u6a21\u7cca\u522a\u9664\uff08redis\u7684\u6a21\u7cca\u522a\u9664\uff09"},"content":{"rendered":"<h1 id=\"redis%e5%af%a6%e7%8f%be%e7%b4%b0%e7%af%80%e5%bc%b7%e5%a4%a7%e7%9a%84%e6%a8%a1%e7%b3%8a%e5%88%aa%e9%99%a4%ef%bc%88redis%e7%9a%84%e6%a8%a1%e7%b3%8a%e5%88%aa%e9%99%a4%ef%bc%89-KeuEYNqNeM\">Redis\u5be6\u73fe\u7d30\u7bc0\u5f37\u5927\u7684\u6a21\u7cca\u522a\u9664\uff08redis\u7684\u6a21\u7cca\u522a\u9664\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u3002\u5176\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u5feb\u901f\u5730\u8655\u7406\u5927\u91cf\u6578\u64da\u3002\u5728Redis\u4e2d\uff0c\u6a21\u7cca\u522a\u9664\u662f\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u6709\u6548\u5730\u7ba1\u7406\u548c\u6e05\u7406\u6578\u64da\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u7684\u6a21\u7cca\u522a\u9664\u5be6\u73fe\u7d30\u7bc0\u53ca\u5176\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%a8%a1%e7%b3%8a%e5%88%aa%e9%99%a4%ef%bc%9f-KeuEYNqNeM\">\u4ec0\u9ebc\u662f\u6a21\u7cca\u522a\u9664\uff1f<\/h2>\n<p>\u6a21\u7cca\u522a\u9664\u662f\u6307\u5728\u4e0d\u7cbe\u78ba\u6307\u5b9a\u8981\u522a\u9664\u7684\u9375\u7684\u60c5\u6cc1\u4e0b\uff0c\u6839\u64da\u67d0\u4e9b\u689d\u4ef6\u6216\u6a21\u5f0f\u4f86\u522a\u9664\u9375\u3002\u9019\u7a2e\u65b9\u6cd5\u7279\u5225\u9069\u5408\u65bc\u9700\u8981\u6e05\u7406\u5927\u91cf\u6578\u64da\u7684\u5834\u666f\uff0c\u4f8b\u5982\u6e05\u9664\u904e\u671f\u7684\u6578\u64da\u6216\u4e0d\u518d\u9700\u8981\u7684\u81e8\u6642\u6578\u64da\u3002<\/p>\n<h2 id=\"redis%e4%b8%ad%e7%9a%84%e6%a8%a1%e7%b3%8a%e5%88%aa%e9%99%a4%e5%af%a6%e7%8f%be-KeuEYNqNeM\">Redis\u4e2d\u7684\u6a21\u7cca\u522a\u9664\u5be6\u73fe<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u6a21\u7cca\u522a\u9664\u4e3b\u8981\u4f9d\u8cf4\u65bc\u5169\u500b\u547d\u4ee4\uff1a<code>SCAN<\/code>\u548c<code>DEL<\/code>\u3002\u9019\u5169\u500b\u547d\u4ee4\u7684\u7d50\u5408\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u9ad8\u6548\u5730\u67e5\u627e\u548c\u522a\u9664\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684\u9375\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4-KeuEYNqNeM\">\u4f7f\u7528SCAN\u547d\u4ee4<\/h3>\n<p><code>SCAN<\/code>\u547d\u4ee4\u7528\u65bc\u904d\u6b77Redis\u4e2d\u7684\u9375\u3002\u8207<code>KEYS<\/code>\u547d\u4ee4\u4e0d\u540c\uff0c<code>SCAN<\/code>\u4e0d\u6703\u963b\u585eRedis\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u66f4\u52a0\u9ad8\u6548\u3002\u4ee5\u4e0b\u662f<code>SCAN<\/code>\u547d\u4ee4\u7684\u57fa\u672c\u7528\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>pattern<\/code>\u662f\u5339\u914d\u6a21\u5f0f\uff0c<code>count<\/code>\u662f\u6bcf\u6b21\u8fd4\u56de\u7684\u9375\u7684\u6578\u91cf\u3002\u4f7f\u7528<code>SCAN<\/code>\u547d\u4ee4\u53ef\u4ee5\u9010\u6b65\u904d\u6b77\u6240\u6709\u9375\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u904e\u6ffe\u3002<\/p>\n<h3 id=\"%e5%88%aa%e9%99%a4%e7%ac%a6%e5%90%88%e6%a2%9d%e4%bb%b6%e7%9a%84%e9%8d%b5-KeuEYNqNeM\">\u522a\u9664\u7b26\u5408\u689d\u4ef6\u7684\u9375<\/h3>\n<p>\u4e00\u65e6\u627e\u5230\u7b26\u5408\u689d\u4ef6\u7684\u9375\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528<code>DEL<\/code>\u547d\u4ee4\u522a\u9664\u5b83\u5011\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528Python\u548cRedis-py\u5eab\u4f86\u5be6\u73fe\u6a21\u7cca\u522a\u9664\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u5b9a\u7fa9\u6a21\u5f0f\npattern = 'temp:*'\n\n# \u4f7f\u7528SCAN\u904d\u6b77\u9375\ncursor = 0\nwhile True:\n    cursor, keys = r.scan(cursor, match=pattern)\n    if keys:\n        r.delete(*keys)  # \u522a\u9664\u7b26\u5408\u689d\u4ef6\u7684\u9375\n    if cursor == 0:\n        break\n<\/code><\/pre>\n<h2 id=\"%e6%a8%a1%e7%b3%8a%e5%88%aa%e9%99%a4%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-KeuEYNqNeM\">\u6a21\u7cca\u522a\u9664\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u6a21\u7cca\u522a\u9664\u5728\u591a\u7a2e\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u61c9\u7528\uff1a<\/p>\n<ul>\n<li><strong>\u6e05\u7406\u904e\u671f\u6578\u64da\uff1a<\/strong>\u5728\u67d0\u4e9b\u61c9\u7528\u4e2d\uff0c\u6578\u64da\u53ef\u80fd\u6703\u96a8\u8457\u6642\u9593\u800c\u904e\u671f\uff0c\u4f7f\u7528\u6a21\u7cca\u522a\u9664\u53ef\u4ee5\u5feb\u901f\u6e05\u7406\u9019\u4e9b\u6578\u64da\u3002<\/li>\n<li><strong>\u81e8\u6642\u6578\u64da\u7ba1\u7406\uff1a<\/strong>\u5c0d\u65bc\u9700\u8981\u983b\u7e41\u5275\u5efa\u548c\u522a\u9664\u7684\u81e8\u6642\u6578\u64da\uff0c\u6a21\u7cca\u522a\u9664\u53ef\u4ee5\u5e6b\u52a9\u4fdd\u6301\u6578\u64da\u5eab\u7684\u6574\u6f54\u3002<\/li>\n<li><strong>\u6e2c\u8a66\u74b0\u5883\u6e05\u7406\uff1a<\/strong>\u5728\u6e2c\u8a66\u74b0\u5883\u4e2d\uff0c\u7d93\u5e38\u9700\u8981\u6e05\u7406\u6e2c\u8a66\u6578\u64da\uff0c\u6a21\u7cca\u522a\u9664\u53ef\u4ee5\u7c21\u5316\u9019\u4e00\u904e\u7a0b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-KeuEYNqNeM\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u96d6\u7136\u6a21\u7cca\u522a\u9664\u975e\u5e38\u5f37\u5927\uff0c\u4f46\u5728\u4f7f\u7528\u6642\u4ecd\u9700\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528<code>SCAN<\/code>\u547d\u4ee4\u6642\uff0c\u61c9\u8003\u616e\u5230\u6027\u80fd\u5f71\u97ff\uff0c\u7279\u5225\u662f\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u3002<\/li>\n<li>\u5728\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u9032\u884c\u6578\u64da\u5099\u4efd\uff0c\u4ee5\u9632\u8aa4\u522a\u3002<\/li>\n<li>\u78ba\u4fdd\u5339\u914d\u6a21\u5f0f\u7684\u6b63\u78ba\u6027\uff0c\u4ee5\u907f\u514d\u522a\u9664\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-KeuEYNqNeM\">\u7e3d\u7d50<\/h2>\n<p>Redis\u7684\u6a21\u7cca\u522a\u9664\u529f\u80fd\u70ba\u7528\u6236\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9748\u6d3b\u4e14\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u65b9\u5f0f\u3002\u901a\u904e\u7d50\u5408<code>SCAN<\/code>\u548c<code>DEL<\/code>\u547d\u4ee4\uff0c\u7528\u6236\u53ef\u4ee5\u8f15\u9b06\u5730\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\uff0c\u5f9e\u800c\u4fdd\u6301\u6578\u64da\u5eab\u7684\u6574\u6f54\u548c\u9ad8\u6548\u904b\u884c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u6216<code><a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a><\/code>\u53ef\u4ee5\u9032\u4e00\u6b65\u63d0\u5347Redis\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u7684\u6a21\u7cca\u522a\u9664\u529f\u80fd\uff0c\u4e86\u89e3\u5176\u5be6\u73fe\u7d30\u7bc0\u53ca\u512a\u52e2\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u512a\u5316\u6027\u80fd\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-128931","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128931","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=128931"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128931\/revisions"}],"predecessor-version":[{"id":128932,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128931\/revisions\/128932"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=128931"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=128931"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=128931"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}