{"id":180182,"date":"2024-11-09T08:05:21","date_gmt":"2024-11-09T00:05:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/180182\/"},"modified":"2024-11-09T08:05:22","modified_gmt":"2024-11-09T00:05:22","slug":"%e5%88%aa%e9%99%a4redis%e4%b8%ad%e6%8c%87%e5%ae%9a%e5%80%bc%e4%b8%80%e5%80%8b%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88%ef%bc%88%e5%88%aa%e9%99%a4redis%e6%8c%87%e5%ae%9a%e5%80%bc%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/180182\/","title":{"rendered":"\u522a\u9664Redis\u4e2d\u6307\u5b9a\u503c\u4e00\u500b\u89e3\u6c7a\u65b9\u6848\uff08\u522a\u9664redis\u6307\u5b9a\u503c\uff09"},"content":{"rendered":"<h1 id=\"%e5%88%aa%e9%99%a4redis%e4%b8%ad%e6%8c%87%e5%ae%9a%e5%80%bc%e4%b8%80%e5%80%8b%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88%ef%bc%88%e5%88%aa%e9%99%a4redis%e6%8c%87%e5%ae%9a%e5%80%bc%ef%bc%89-FfyhcJwSrp\">\u522a\u9664Redis\u4e2d\u6307\u5b9a\u503c\u4e00\u500b\u89e3\u6c7a\u65b9\u6848\uff08\u522a\u9664redis\u6307\u5b9a\u503c\uff09<\/h1>\n<p>Redis\u662f\u4e00\u500b\u9ad8\u6548\u80fd\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u3002\u96a8\u8457\u6578\u64da\u7684\u589e\u9577\uff0c\u7ba1\u7406Redis\u4e2d\u7684\u6578\u64da\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\uff0c\u7279\u5225\u662f\u7576\u9700\u8981\u522a\u9664\u7279\u5b9a\u7684\u503c\u6642\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Redis\u4e2d\u522a\u9664\u6307\u5b9a\u7684\u503c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%93%8d%e4%bd%9c-FfyhcJwSrp\">Redis\u7684\u57fa\u672c\u64cd\u4f5c<\/h2>\n<p>\u5728\u6df1\u5165\u522a\u9664\u6307\u5b9a\u503c\u7684\u89e3\u6c7a\u65b9\u6848\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3Redis\u7684\u57fa\u672c\u64cd\u4f5c\u3002Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u3002\u6bcf\u7a2e\u6578\u64da\u7d50\u69cb\u90fd\u6709\u5176\u7279\u5b9a\u7684\u64cd\u4f5c\u547d\u4ee4\u3002<\/p>\n<h3 id=\"%e5%9f%ba%e6%9c%ac%e5%91%bd%e4%bb%a4-FfyhcJwSrp\">\u57fa\u672c\u547d\u4ee4<\/h3>\n<ul>\n<li><code>SET key value<\/code>\uff1a\u8a2d\u7f6e\u9375\u7684\u503c\u3002<\/li>\n<li><code>GET key<\/code>\uff1a\u7372\u53d6\u9375\u7684\u503c\u3002<\/li>\n<li><code>DEL key<\/code>\uff1a\u522a\u9664\u6307\u5b9a\u7684\u9375\u3002<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u57fa\u672c\u547d\u4ee4\u662f\u64cd\u4f5cRedis\u7684\u57fa\u790e\uff0c\u4e86\u89e3\u9019\u4e9b\u547d\u4ee4\u5f8c\uff0c\u6211\u5011\u53ef\u4ee5\u9032\u4e00\u6b65\u63a2\u8a0e\u5982\u4f55\u522a\u9664\u7279\u5b9a\u7684\u503c\u3002<\/p>\n<h2 id=\"%e5%88%aa%e9%99%a4%e6%8c%87%e5%ae%9a%e5%80%bc%e7%9a%84%e6%8c%91%e6%88%b0-FfyhcJwSrp\">\u522a\u9664\u6307\u5b9a\u503c\u7684\u6311\u6230<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u522a\u9664\u7279\u5b9a\u7684\u503c\u53ef\u80fd\u6703\u9762\u81e8\u4e00\u4e9b\u6311\u6230\u3002\u4f8b\u5982\uff0c\u7576\u6211\u5011\u9700\u8981\u522a\u9664\u67d0\u500b\u9375\u4e0b\u7684\u7279\u5b9a\u503c\u6642\uff0c\u53ef\u80fd\u9700\u8981\u904d\u6b77\u6574\u500b\u6578\u64da\u7d50\u69cb\uff0c\u9019\u5728\u6578\u64da\u91cf\u8f03\u5927\u6642\u6703\u5f71\u97ff\u6027\u80fd\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4-FfyhcJwSrp\">\u4f7f\u7528SCAN\u547d\u4ee4<\/h3>\n<p>\u70ba\u4e86\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u53ef\u4ee5\u4f7f\u7528Redis\u7684<code>SCAN<\/code>\u547d\u4ee4\u4f86\u904d\u6b77\u9375\u3002<code>SCAN<\/code>\u547d\u4ee4\u662f\u4e00\u7a2e\u975e\u963b\u585e\u7684\u904d\u6b77\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u67e5\u627e\u7b26\u5408\u689d\u4ef6\u7684\u9375\u3002<\/p>\n<pre><code>SCAN cursor [MATCH pattern] [COUNT count]<\/code><\/pre>\n<p>\u9019\u88e1\u7684<code>cursor<\/code>\u662f\u6e38\u6a19\uff0c<code>MATCH<\/code>\u7528\u65bc\u5339\u914d\u7279\u5b9a\u6a21\u5f0f\u7684\u9375\uff0c<code>COUNT<\/code>\u5247\u6307\u5b9a\u6bcf\u6b21\u8fd4\u56de\u7684\u9375\u7684\u6578\u91cf\u3002<\/p>\n<h2 id=\"%e5%88%aa%e9%99%a4%e6%8c%87%e5%ae%9a%e5%80%bc%e7%9a%84%e5%af%a6%e7%8f%be%e6%ad%a5%e9%a9%9f-FfyhcJwSrp\">\u522a\u9664\u6307\u5b9a\u503c\u7684\u5be6\u73fe\u6b65\u9a5f<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528<code>SCAN<\/code>\u547d\u4ee4\u4f86\u522a\u9664Redis\u4e2d\u6307\u5b9a\u7684\u503c\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\u8981\u522a\u9664\u7684\u503c\nvalue_to_delete = 'target_value'\n\n# \u4f7f\u7528SCAN\u547d\u4ee4\u904d\u6b77\u6240\u6709\u9375\ncursor = 0\nwhile True:\n    cursor, keys = r.scan(cursor=cursor)\n    for key in keys:\n        # \u7372\u53d6\u9375\u7684\u503c\n        value = r.get(key)\n        # \u5982\u679c\u503c\u5339\u914d\uff0c\u5247\u522a\u9664\u8a72\u9375\n        if value == value_to_delete.encode('utf-8'):\n            r.delete(key)\n            print(f\"\u522a\u9664\u9375: {key.decode('utf-8')}\")\n\n    # \u5982\u679c\u6e38\u6a19\u70ba0\uff0c\u5247\u904d\u6b77\u7d50\u675f\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\uff0c\u7136\u5f8c\u4f7f\u7528<code>SCAN<\/code>\u547d\u4ee4\u904d\u6b77\u6240\u6709\u9375\u3002\u5c0d\u65bc\u6bcf\u500b\u9375\uff0c\u6211\u5011\u6aa2\u67e5\u5176\u503c\u662f\u5426\u8207\u8981\u522a\u9664\u7684\u503c\u5339\u914d\uff0c\u5982\u679c\u5339\u914d\uff0c\u5247\u4f7f\u7528<code>DEL<\/code>\u547d\u4ee4\u522a\u9664\u8a72\u9375\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-FfyhcJwSrp\">\u7e3d\u7d50<\/h2>\n<p>\u5728Redis\u4e2d\u522a\u9664\u6307\u5b9a\u503c\u7684\u904e\u7a0b\u4e2d\uff0c\u4f7f\u7528<code>SCAN<\/code>\u547d\u4ee4\u53ef\u4ee5\u6709\u6548\u5730\u904d\u6b77\u9375\u4e26\u627e\u5230\u9700\u8981\u522a\u9664\u7684\u503c\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6027\u80fd\uff0c\u9084\u80fd\u907f\u514d\u56e0\u70ba\u5927\u6578\u64da\u91cf\u800c\u5c0e\u81f4\u7684\u963b\u585e\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u7ba1\u7406\u6578\u64da\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u9019\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684<code><a href=\"https:\/\/server.hk\">VPS<\/a><\/code>\u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684Redis\u670d\u52d9\uff0cServer.HK\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u9084\u662f\u5176\u4ed6\u985e\u578b\u7684<code><a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a><\/code>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5728Redis\u4e2d\u6709\u6548\u522a\u9664\u6307\u5b9a\u503c\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\uff0c\u63d0\u5347\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-180182","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180182","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=180182"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180182\/revisions"}],"predecessor-version":[{"id":180183,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180182\/revisions\/180183"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=180182"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=180182"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=180182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}