{"id":129005,"date":"2024-10-26T18:23:20","date_gmt":"2024-10-26T10:23:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129005\/"},"modified":"2024-10-26T18:23:21","modified_gmt":"2024-10-26T10:23:21","slug":"redis%e5%af%a6%e7%8f%be%e9%81%a0%e7%a8%8b%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%e7%9a%84%e7%b0%a1%e4%be%bf%e6%96%b9%e6%b3%95%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\/129005\/","title":{"rendered":"Redis\u5be6\u73fe\u9060\u7a0b\u6279\u91cf\u522a\u9664\u7684\u7c21\u4fbf\u65b9\u6cd5\uff08redis\u9060\u7a0b\u6279\u91cf\u522a\u9664\uff09"},"content":{"rendered":"<h1 id=\"redis%e5%af%a6%e7%8f%be%e9%81%a0%e7%a8%8b%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%e7%9a%84%e7%b0%a1%e4%be%bf%e6%96%b9%e6%b3%95-ZOkCRDqIaE\">Redis\u5be6\u73fe\u9060\u7a0b\u6279\u91cf\u522a\u9664\u7684\u7c21\u4fbf\u65b9\u6cd5<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u548c\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Redis\u5be6\u73fe\u9060\u7a0b\u6279\u91cf\u522a\u9664\u7684\u7c21\u4fbf\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-ZOkCRDqIaE\">Redis\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\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\u5b83\u7684\u9ad8\u6548\u6027\u548c\u9748\u6d3b\u6027\u4f7f\u5176\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7a0b\u5e8f\u7684\u9996\u9078\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\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-ZOkCRDqIaE\">\u70ba\u4ec0\u9ebc\u9700\u8981\u6279\u91cf\u522a\u9664<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0c\u6578\u64da\u5eab\u4e2d\u53ef\u80fd\u6703\u7a4d\u7d2f\u5927\u91cf\u904e\u671f\u6216\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u3002\u9019\u4e9b\u6578\u64da\u4e0d\u50c5\u4f54\u7528\u5b58\u5132\u7a7a\u9593\uff0c\u9084\u53ef\u80fd\u5f71\u97ff\u7cfb\u7d71\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u5b9a\u671f\u9032\u884c\u6279\u91cf\u522a\u9664\u662f\u7dad\u8b77\u6578\u64da\u5eab\u5065\u5eb7\u7684\u91cd\u8981\u6b65\u9a5f\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%88%aa%e9%99%a4%e5%91%bd%e4%bb%a4-ZOkCRDqIaE\">Redis\u7684\u522a\u9664\u547d\u4ee4<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u522a\u9664\u9375\u7684\u4e3b\u8981\u547d\u4ee4\u662f <code>DEL<\/code>\u3002\u9019\u500b\u547d\u4ee4\u53ef\u4ee5\u7528\u4f86\u522a\u9664\u55ae\u500b\u9375\uff0c\u4f46\u5c0d\u65bc\u6279\u91cf\u522a\u9664\uff0c\u5247\u9700\u8981\u4e00\u4e9b\u984d\u5916\u7684\u6b65\u9a5f\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4%e6%9f%a5%e6%89%be%e9%8d%b5-ZOkCRDqIaE\">\u4f7f\u7528SCAN\u547d\u4ee4\u67e5\u627e\u9375<\/h3>\n<p>\u5728\u9032\u884c\u6279\u91cf\u522a\u9664\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u627e\u5230\u8981\u522a\u9664\u7684\u9375\u3002Redis\u63d0\u4f9b\u4e86 <code>SCAN<\/code> \u547d\u4ee4\uff0c\u53ef\u4ee5\u7528\u4f86\u904d\u6b77\u6578\u64da\u5eab\u4e2d\u7684\u9375\u3002\u9019\u500b\u547d\u4ee4\u7684\u512a\u52e2\u5728\u65bc\u5b83\u4e0d\u6703\u963b\u585e\u6578\u64da\u5eab\uff0c\u9069\u5408\u7528\u65bc\u5927\u6578\u64da\u91cf\u7684\u60c5\u6cc1\u3002<\/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\u5339\u914d\u7279\u5b9a\u6a21\u5f0f\u7684\u9375\uff0c<code>COUNT<\/code> \u7528\u65bc\u6307\u5b9a\u6bcf\u6b21\u8fd4\u56de\u7684\u9375\u7684\u6578\u91cf\u3002<\/p>\n<h3 id=\"%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%e7%9a%84%e5%af%a6%e7%8f%be-ZOkCRDqIaE\">\u6279\u91cf\u522a\u9664\u7684\u5be6\u73fe<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Python\u548cRedis-py\u5eab\u5be6\u73fe\u9060\u7a0b\u6279\u91cf\u522a\u9664\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230Redis\nr = redis.StrictRedis(host='your_redis_host', port=6379, db=0)\n\n# \u5b9a\u7fa9\u8981\u522a\u9664\u7684\u9375\u7684\u6a21\u5f0f\npattern = 'your_pattern:*'\n\n# \u4f7f\u7528SCAN\u547d\u4ee4\u67e5\u627e\u9375\ncursor = 0\nwhile True:\n    cursor, keys = r.scan(cursor, match=pattern, count=100)\n    if keys:\n        # \u6279\u91cf\u522a\u9664\u627e\u5230\u7684\u9375\n        r.delete(*keys)\n    if cursor == 0:\n        break\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u9023\u63a5\u5230Redis\u670d\u52d9\u5668\uff0c\u7136\u5f8c\u4f7f\u7528 <code>SCAN<\/code> \u547d\u4ee4\u67e5\u627e\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684\u9375\u3002\u6bcf\u6b21\u627e\u5230\u7684\u9375\u90fd\u6703\u88ab\u6279\u91cf\u522a\u9664\uff0c\u76f4\u5230\u6240\u6709\u9375\u90fd\u88ab\u8655\u7406\u5b8c\u7562\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-ZOkCRDqIaE\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u9032\u884c\u6279\u91cf\u522a\u9664\u6642\uff0c\u5efa\u8b70\u5148\u9032\u884c\u6e2c\u8a66\uff0c\u4ee5\u78ba\u4fdd\u4e0d\u6703\u8aa4\u522a\u91cd\u8981\u6578\u64da\u3002<\/li>\n<li>\u6839\u64da\u6578\u64da\u91cf\u7684\u5927\u5c0f\uff0c\u8abf\u6574 <code>COUNT<\/code> \u7684\u503c\uff0c\u4ee5\u5e73\u8861\u6027\u80fd\u548c\u522a\u9664\u6548\u7387\u3002<\/li>\n<li>\u8003\u616e\u4f7f\u7528 <code>UNLINK<\/code> \u547d\u4ee4\u4f86\u975e\u963b\u585e\u5730\u522a\u9664\u9375\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ZOkCRDqIaE\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528Redis\u9032\u884c\u9060\u7a0b\u6279\u91cf\u522a\u9664\u662f\u4e00\u500b\u9ad8\u6548\u4e14\u9748\u6d3b\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u7d50\u5408 <code>SCAN<\/code> \u548c <code>DEL<\/code> \u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u7ba1\u7406\u548c\u6e05\u7406\u6578\u64da\u5eab\u4e2d\u7684\u4e0d\u5fc5\u8981\u6578\u64da\u3002\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u91cb\u653e\u5b58\u5132\u7a7a\u9593\uff0c\u9084\u80fd\u63d0\u9ad8\u7cfb\u7d71\u6027\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684Redis\u670d\u52d9\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u61c9\u7528\u9084\u662f\u5927\u578b\u4f01\u696d\uff0c\u60a8\u90fd\u53ef\u4ee5\u5728\u6211\u5011\u7684\u7db2\u7ad9\u4e0a\u627e\u5230\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u65b9\u6848\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u9060\u7a0b\u6279\u91cf\u522a\u9664\u7684\u7c21\u4fbf\u65b9\u6cd5\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u7c21\u5316\u64cd\u4f5c\u6d41\u7a0b\uff0c\u8b93\u6578\u64da\u6e05\u7406\u66f4\u8f15\u9b06\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-129005","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129005","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=129005"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129005\/revisions"}],"predecessor-version":[{"id":129006,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129005\/revisions\/129006"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129005"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129005"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}