{"id":194863,"date":"2024-11-13T10:12:18","date_gmt":"2024-11-13T02:12:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/194863\/"},"modified":"2024-11-13T10:12:19","modified_gmt":"2024-11-13T02:12:19","slug":"%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%ab%98%e6%80%a7%e8%83%bd%e7%9a%84%e9%80%a3%e6%8e%a5%e6%95%b8%e7%b5%b1%e8%a8%88%ef%bc%88redis-%e7%b5%b1%e8%a8%88%e9%80%a3%e6%8e%a5%e6%95%b8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/194863\/","title":{"rendered":"\u7528Redis\u5be6\u73fe\u9ad8\u6027\u80fd\u7684\u9023\u63a5\u6578\u7d71\u8a08\uff08redis \u7d71\u8a08\u9023\u63a5\u6578\uff09"},"content":{"rendered":"<h1 id=\"%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%ab%98%e6%80%a7%e8%83%bd%e7%9a%84%e9%80%a3%e6%8e%a5%e6%95%b8%e7%b5%b1%e8%a8%88%ef%bc%88redis-%e7%b5%b1%e8%a8%88%e9%80%a3%e6%8e%a5%e6%95%b8%ef%bc%89-xjiAAUYzRg\">\u7528Redis\u5be6\u73fe\u9ad8\u6027\u80fd\u7684\u9023\u63a5\u6578\u7d71\u8a08\uff08redis \u7d71\u8a08\u9023\u63a5\u6578\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u9023\u63a5\u6578\u7684\u7d71\u8a08\u5c0d\u65bc\u6027\u80fd\u76e3\u63a7\u548c\u8cc7\u6e90\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002\u96a8\u8457\u7528\u6236\u6578\u91cf\u7684\u589e\u52a0\uff0c\u5982\u4f55\u9ad8\u6548\u5730\u7d71\u8a08\u9023\u63a5\u6578\u6210\u70ba\u4e86\u958b\u767c\u8005\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u512a\u79c0\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\uff0c\u975e\u5e38\u9069\u5408\u7528\u65bc\u9023\u63a5\u6578\u7684\u7d71\u8a08\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Redis\u4f86\u5be6\u73fe\u9ad8\u6027\u80fd\u7684\u9023\u63a5\u6578\u7d71\u8a08\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e7%89%b9%e6%80%a7-xjiAAUYzRg\">Redis\u7684\u7279\u6027<\/h2>\n<p>Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u5167\u5b58\u6578\u64da\u7d50\u69cb\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\u7b49\u3002\u5176\u4e3b\u8981\u7279\u6027\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis\u80fd\u5920\u6bcf\u79d2\u8655\u7406\u6578\u5341\u842c\u6b21\u7684\u8b80\u5beb\u64cd\u4f5c\uff0c\u9019\u4f7f\u5f97\u5b83\u975e\u5e38\u9069\u5408\u7528\u65bc\u9700\u8981\u9ad8\u983b\u6b21\u64cd\u4f5c\u7684\u5834\u666f\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\uff1a<\/strong>Redis\u652f\u6301\u5c07\u6578\u64da\u6301\u4e45\u5316\u5230\u78c1\u789f\uff0c\u9019\u6a23\u5373\u4f7f\u5728\u91cd\u555f\u5f8c\u4e5f\u80fd\u6062\u5fa9\u6578\u64da\u3002<\/li>\n<li><strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff1a<\/strong>\u9019\u4f7f\u5f97\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u9078\u64c7\u6700\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\u4f86\u5b58\u5132\u548c\u64cd\u4f5c\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%80%a3%e6%8e%a5%e6%95%b8%e7%b5%b1%e8%a8%88%e7%9a%84%e9%9c%80%e6%b1%82-xjiAAUYzRg\">\u9023\u63a5\u6578\u7d71\u8a08\u7684\u9700\u6c42<\/h2>\n<p>\u5728\u8a31\u591a\u61c9\u7528\u4e2d\uff0c\u7279\u5225\u662f\u5373\u6642\u901a\u8a0a\u3001\u904a\u6232\u548c\u793e\u4ea4\u5a92\u9ad4\u7b49\uff0c\u9023\u63a5\u6578\u7684\u7d71\u8a08\u4e0d\u50c5\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u4e86\u89e3\u7528\u6236\u7684\u6d3b\u8e8d\u7a0b\u5ea6\uff0c\u9084\u80fd\u5728\u8cc7\u6e90\u5206\u914d\u548c\u6027\u80fd\u512a\u5316\u4e0a\u63d0\u4f9b\u91cd\u8981\u7684\u4f9d\u64da\u3002\u50b3\u7d71\u7684\u6578\u64da\u5eab\u5728\u8655\u7406\u9ad8\u983b\u6b21\u7684\u9023\u63a5\u6578\u7d71\u8a08\u6642\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u6027\u80fd\u74f6\u9838\uff0c\u800cRedis\u5247\u80fd\u5920\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e9%80%b2%e8%a1%8c%e9%80%a3%e6%8e%a5%e6%95%b8%e7%b5%b1%e8%a8%88-xjiAAUYzRg\">\u4f7f\u7528Redis\u9032\u884c\u9023\u63a5\u6578\u7d71\u8a08<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Redis\u9032\u884c\u9023\u63a5\u6578\u7d71\u8a08\u7684\u57fa\u672c\u793a\u4f8b\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230Redis\u670d\u52d9\u5668\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\n# \u589e\u52a0\u9023\u63a5\u6578\ndef increment_connection_count():\n    r.incr('connection_count')\n\n# \u7372\u53d6\u7576\u524d\u9023\u63a5\u6578\ndef get_connection_count():\n    return r.get('connection_count') or 0\n\n# \u6e2c\u8a66\nincrement_connection_count()\nprint(\"\u7576\u524d\u9023\u63a5\u6578:\", get_connection_count())\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86Redis\u7684`INCR`\u547d\u4ee4\u4f86\u589e\u52a0\u9023\u63a5\u6578\uff0c\u4e26\u4f7f\u7528`GET`\u547d\u4ee4\u4f86\u7372\u53d6\u7576\u524d\u7684\u9023\u63a5\u6578\u3002\u9019\u7a2e\u65b9\u6cd5\u7684\u512a\u52e2\u5728\u65bc\u5176\u64cd\u4f5c\u7684\u539f\u5b50\u6027\uff0c\u80fd\u5920\u4fdd\u8b49\u5728\u9ad8\u4f75\u767c\u7684\u60c5\u6cc1\u4e0b\u4e0d\u6703\u51fa\u73fe\u6578\u64da\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e9%80%b2%e9%9a%8e%e6%87%89%e7%94%a8%ef%bc%9a%e4%bd%bf%e7%94%a8redis%e7%9a%84%e9%81%8e%e6%9c%9f%e9%8d%b5-xjiAAUYzRg\">\u9032\u968e\u61c9\u7528\uff1a\u4f7f\u7528Redis\u7684\u904e\u671f\u9375<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6211\u5011\u53ef\u80fd\u9700\u8981\u7d71\u8a08\u6d3b\u8e8d\u9023\u63a5\u6578\uff0c\u5373\u5728\u4e00\u5b9a\u6642\u9593\u5167\u7684\u9023\u63a5\u6578\u3002\u9019\u6642\u53ef\u4ee5\u5229\u7528Redis\u7684\u904e\u671f\u9375\u529f\u80fd\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>def track_active_connection(user_id):\n    # \u5c07\u7528\u6236ID\u4f5c\u70ba\u9375\uff0c\u8a2d\u7f6e\u904e\u671f\u6642\u9593\n    r.setex(f'active_connection:{user_id}', 300, 1)  # 300\u79d2\u5f8c\u904e\u671f\n\n# \u7372\u53d6\u7576\u524d\u6d3b\u8e8d\u9023\u63a5\u6578\ndef get_active_connection_count():\n    return len(r.keys('active_connection:*'))\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528`SETEX`\u547d\u4ee4\u4f86\u8a2d\u7f6e\u7528\u6236\u7684\u6d3b\u8e8d\u9023\u63a5\uff0c\u4e26\u5728300\u79d2\u5f8c\u81ea\u52d5\u904e\u671f\u3002\u901a\u904e`KEYS`\u547d\u4ee4\uff0c\u6211\u5011\u53ef\u4ee5\u7372\u53d6\u7576\u524d\u6d3b\u8e8d\u7684\u9023\u63a5\u6578\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-xjiAAUYzRg\">\u7e3d\u7d50<\/h2>\n<p>\u5229\u7528Redis\u9032\u884c\u9ad8\u6027\u80fd\u7684\u9023\u63a5\u6578\u7d71\u8a08\uff0c\u4e0d\u50c5\u80fd\u5920\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\uff0c\u9084\u80fd\u5920\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u9748\u6d3b\u7684\u6578\u64da\u64cd\u4f5c\u65b9\u5f0f\u3002\u7121\u8ad6\u662f\u7c21\u55ae\u7684\u9023\u63a5\u6578\u7d71\u8a08\u9084\u662f\u8907\u96dc\u7684\u6d3b\u8e8d\u9023\u63a5\u8ffd\u8e64\uff0cRedis\u90fd\u80fd\u5920\u8f15\u9b06\u61c9\u5c0d\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u8cc7\u6e90\u7ba1\u7406\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5b58\u5132\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6027\u80fd\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684Redis\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528Redis\u5be6\u73fe\u9ad8\u6027\u80fd\u7684\u9023\u63a5\u6578\u7d71\u8a08\uff0c\u8f15\u9b06\u76e3\u63a7\u548c\u7ba1\u7406\u9023\u63a5\u6578\u64da\uff0c\u63d0\u5347\u7cfb\u7d71\u6548\u80fd\u8207\u7a69\u5b9a\u6027\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-194863","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194863","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=194863"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194863\/revisions"}],"predecessor-version":[{"id":194864,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194863\/revisions\/194864"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=194863"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=194863"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=194863"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}