{"id":152137,"date":"2024-11-01T20:25:21","date_gmt":"2024-11-01T12:25:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/152137\/"},"modified":"2024-11-01T20:25:22","modified_gmt":"2024-11-01T12:25:22","slug":"%e9%81%8d%e6%ad%b7redis%e4%b8%ad%e6%89%80%e6%9c%89%e5%85%83%e7%b4%a0%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%88redis%e9%81%8d%e6%ad%b7%e6%89%80%e6%9c%89%e5%85%83%e7%b4%a0%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/152137\/","title":{"rendered":"\u904d\u6b77Redis\u4e2d\u6240\u6709\u5143\u7d20\u7684\u65b9\u6cd5\uff08redis\u904d\u6b77\u6240\u6709\u5143\u7d20\uff09"},"content":{"rendered":"<h1 id=\"%e9%81%8d%e6%ad%b7redis%e4%b8%ad%e6%89%80%e6%9c%89%e5%85%83%e7%b4%a0%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%88redis%e9%81%8d%e6%ad%b7%e6%89%80%e6%9c%89%e5%85%83%e7%b4%a0%ef%bc%89-BtNAsTqoDZ\">\u904d\u6b77Redis\u4e2d\u6240\u6709\u5143\u7d20\u7684\u65b9\u6cd5\uff08redis\u904d\u6b77\u6240\u6709\u5143\u7d20\uff09<\/h1>\n<p>Redis\u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u5834\u666f\u3002\u7531\u65bc\u5176\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\uff0cRedis\u5728\u8a31\u591a\u61c9\u7528\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u89d2\u8272\u3002\u5728\u4f7f\u7528Redis\u6642\uff0c\u7d93\u5e38\u9700\u8981\u904d\u6b77\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff0c\u4ee5\u4fbf\u9032\u884c\u6578\u64da\u5206\u6790\u3001\u6e05\u7406\u6216\u5176\u4ed6\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5e7e\u7a2e\u904d\u6b77Redis\u4e2d\u6240\u6709\u5143\u7d20\u7684\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"1-%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4-BtNAsTqoDZ\">1. \u4f7f\u7528SCAN\u547d\u4ee4<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u904d\u6b77\u65b9\u6cd5\u662f\u4f7f\u7528<code>SCAN<\/code>\u547d\u4ee4\u3002\u8207<code>KEYS<\/code>\u547d\u4ee4\u4e0d\u540c\uff0c<code>SCAN<\/code>\u547d\u4ee4\u4e0d\u6703\u4e00\u6b21\u6027\u8fd4\u56de\u6240\u6709\u9375\uff0c\u800c\u662f\u4ee5\u6e38\u6a19\u7684\u65b9\u5f0f\u5206\u6279\u8fd4\u56de\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u963b\u585eRedis\u670d\u52d9\u5668\u3002<\/p>\n<pre><code>SCAN cursor [MATCH pattern] [COUNT count]<\/code><\/pre>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528<code>SCAN<\/code>\u547d\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>127.0.0.1:6379&gt; SCAN 0\n1) \"0\"\n2) 1) \"key1\"\n   2) \"key2\"\n   3) \"key3\"\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c<code>SCAN<\/code>\u547d\u4ee4\u5f9e\u6e38\u6a190\u958b\u59cb\uff0c\u8fd4\u56de\u4e86\u4e09\u500b\u9375\u3002\u7528\u6236\u53ef\u4ee5\u6839\u64da\u9700\u8981\u7e7c\u7e8c\u8abf\u7528<code>SCAN<\/code>\u547d\u4ee4\uff0c\u76f4\u5230\u6e38\u6a19\u8fd4\u56de0\u70ba\u6b62\uff0c\u8868\u793a\u904d\u6b77\u5b8c\u6210\u3002<\/p>\n<h2 id=\"2-%e4%bd%bf%e7%94%a8hscan%e3%80%81sscan%e5%92%8czscan%e5%91%bd%e4%bb%a4-BtNAsTqoDZ\">2. \u4f7f\u7528HSCAN\u3001SSCAN\u548cZSCAN\u547d\u4ee4<\/h2>\n<p>\u9664\u4e86<code>SCAN<\/code>\u547d\u4ee4\uff0cRedis\u9084\u63d0\u4f9b\u4e86\u91dd\u5c0d\u4e0d\u540c\u6578\u64da\u985e\u578b\u7684\u904d\u6b77\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><code>HSCAN<\/code>\uff1a\u7528\u65bc\u904d\u6b77\u54c8\u5e0c\u8868\u4e2d\u7684\u5b57\u6bb5\u3002<\/li>\n<li><code>SSCAN<\/code>\uff1a\u7528\u65bc\u904d\u6b77\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u3002<\/li>\n<li><code>ZSCAN<\/code>\uff1a\u7528\u65bc\u904d\u6b77\u6709\u5e8f\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u3002<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u547d\u4ee4\u7684\u7528\u6cd5\u8207<code>SCAN<\/code>\u985e\u4f3c\uff0c\u90fd\u662f\u901a\u904e\u6e38\u6a19\u9032\u884c\u5206\u6279\u8fd4\u56de\u3002\u4f8b\u5982\uff0c\u4f7f\u7528<code>HSCAN<\/code>\u547d\u4ee4\u904d\u6b77\u54c8\u5e0c\u8868\uff1a<\/p>\n<pre><code>HSCAN key cursor [MATCH pattern] [COUNT count]<\/code><\/pre>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre><code>127.0.0.1:6379&gt; HSCAN myhash 0\n1) \"0\"\n2) 1) \"field1\"\n   2) \"value1\"\n   3) \"field2\"\n   4) \"value2\"\n<\/code><\/pre>\n<h2 id=\"3-%e4%bd%bf%e7%94%a8redis%e5%ae%a2%e6%88%b6%e7%ab%af%e5%ba%ab-BtNAsTqoDZ\">3. \u4f7f\u7528Redis\u5ba2\u6236\u7aef\u5eab<\/h2>\n<p>\u8a31\u591aRedis\u5ba2\u6236\u7aef\u5eab\u63d0\u4f9b\u4e86\u9ad8\u7d1aAPI\u4f86\u904d\u6b77\u6578\u64da\u3002\u4f8b\u5982\uff0c\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528<code>redis-py<\/code>\u5eab\u4f86\u904d\u6b77\u6240\u6709\u9375\uff1a<\/p>\n<pre><code>import redis\n\nr = redis.Redis()\ncursor = 0\nwhile True:\n    cursor, keys = r.scan(cursor)\n    for key in keys:\n        print(key)\n    if cursor == 0:\n        break\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u4f7f\u7528<code>scan<\/code>\u65b9\u6cd5\u904d\u6b77\u6240\u6709\u9375\uff0c\u4e26\u5728\u6bcf\u6b21\u8fed\u4ee3\u4e2d\u6253\u5370\u51fa\u9375\u7684\u540d\u7a31\u3002<\/p>\n<h2 id=\"4-%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-BtNAsTqoDZ\">4. \u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u904d\u6b77Redis\u4e2d\u7684\u5143\u7d20\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528<code>SCAN<\/code>\u547d\u4ee4\u6642\uff0c\u8fd4\u56de\u7684\u7d50\u679c\u53ef\u80fd\u6703\u96a8\u8457\u5176\u4ed6\u64cd\u4f5c\u800c\u8b8a\u5316\uff0c\u56e0\u6b64\u5728\u904d\u6b77\u904e\u7a0b\u4e2d\u53ef\u80fd\u6703\u6f0f\u6389\u67d0\u4e9b\u9375\u6216\u91cd\u8907\u67d0\u4e9b\u9375\u3002<\/li>\n<li>\u5c0d\u65bc\u5927\u578b\u6578\u64da\u96c6\uff0c\u5efa\u8b70\u4f7f\u7528<code>COUNT<\/code>\u9078\u9805\u4f86\u63a7\u5236\u6bcf\u6b21\u8fd4\u56de\u7684\u9375\u7684\u6578\u91cf\uff0c\u4ee5\u6e1b\u5c11\u5c0dRedis\u6027\u80fd\u7684\u5f71\u97ff\u3002<\/li>\n<li>\u5728\u904d\u6b77\u904e\u7a0b\u4e2d\uff0c\u61c9\u907f\u514d\u5c0dRedis\u9032\u884c\u5beb\u64cd\u4f5c\uff0c\u4ee5\u514d\u5f71\u97ff\u904d\u6b77\u7d50\u679c\u7684\u6e96\u78ba\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-BtNAsTqoDZ\">\u7e3d\u7d50<\/h2>\n<p>\u904d\u6b77Redis\u4e2d\u7684\u6240\u6709\u5143\u7d20\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u6cd5\u5be6\u73fe\uff0c\u6700\u5e38\u7528\u7684\u662f<code>SCAN<\/code>\u547d\u4ee4\u53ca\u5176\u8b8a\u9ad4<code>HSCAN<\/code>\u3001<code>SSCAN<\/code>\u548c<code>ZSCAN<\/code>\u3002\u9019\u4e9b\u65b9\u6cd5\u80fd\u5920\u6709\u6548\u5730\u5206\u6279\u8fd4\u56de\u6578\u64da\uff0c\u907f\u514d\u963b\u585eRedis\u670d\u52d9\u5668\u3002\u4f7f\u7528Redis\u5ba2\u6236\u7aef\u5eab\u4e5f\u80fd\u7c21\u5316\u904d\u6b77\u904e\u7a0b\uff0c\u63d0\u4f9b\u66f4\u9ad8\u7d1a\u7684API\u4f86\u64cd\u4f5c\u6578\u64da\u3002\u5728\u9032\u884c\u904d\u6b77\u6642\uff0c\u9700\u6ce8\u610f\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u6027\u80fd\u5f71\u97ff\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\u6eff\u8db3\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\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u4e2d\u904d\u6b77\u6240\u6709\u5143\u7d20\u7684\u65b9\u6cd5\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u5730\u7372\u53d6\u548c\u7ba1\u7406\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u64cd\u4f5c\u6548\u7387\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-152137","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152137","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=152137"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152137\/revisions"}],"predecessor-version":[{"id":152138,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152137\/revisions\/152138"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=152137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=152137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=152137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}