{"id":128631,"date":"2024-10-26T15:35:17","date_gmt":"2024-10-26T07:35:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/128631\/"},"modified":"2024-10-26T15:35:18","modified_gmt":"2024-10-26T07:35:18","slug":"redis%e5%af%a6%e7%8f%be%e6%b4%bb%e5%8b%95%e6%ac%a1%e6%95%b8%e9%99%90%e5%88%b6%ef%bc%88redis%e6%b4%bb%e5%8b%95%e6%ac%a1%e6%95%b8%e9%99%90%e5%88%b6%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/128631\/","title":{"rendered":"Redis\u5be6\u73fe\u6d3b\u52d5\u6b21\u6578\u9650\u5236\uff08redis\u6d3b\u52d5\u6b21\u6578\u9650\u5236\uff09"},"content":{"rendered":"<h1 id=\"redis%e5%af%a6%e7%8f%be%e6%b4%bb%e5%8b%95%e6%ac%a1%e6%95%b8%e9%99%90%e5%88%b6%ef%bc%88redis%e6%b4%bb%e5%8b%95%e6%ac%a1%e6%95%b8%e9%99%90%e5%88%b6%ef%bc%89-BBCxgDAXEr\">Redis\u5be6\u73fe\u6d3b\u52d5\u6b21\u6578\u9650\u5236\uff08redis\u6d3b\u52d5\u6b21\u6578\u9650\u5236\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u6d3b\u52d5\u6b21\u6578\u9650\u5236\u662f\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\uff0c\u7279\u5225\u662f\u5728\u9632\u6b62\u6feb\u7528\u548c\u4fdd\u8b77\u7cfb\u7d71\u8cc7\u6e90\u65b9\u9762\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u6d3b\u52d5\u6b21\u6578\u9650\u5236\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Redis\u4f86\u5be6\u73fe\u9019\u4e00\u529f\u80fd\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e6%b4%bb%e5%8b%95%e6%ac%a1%e6%95%b8%e9%99%90%e5%88%b6%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-BBCxgDAXEr\">\u6d3b\u52d5\u6b21\u6578\u9650\u5236\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u6d3b\u52d5\u6b21\u6578\u9650\u5236\u901a\u5e38\u7528\u65bc\u63a7\u5236\u7528\u6236\u5728\u7279\u5b9a\u6642\u9593\u5167\u7684\u64cd\u4f5c\u6b21\u6578\u3002\u4f8b\u5982\uff0c\u9632\u6b62\u7528\u6236\u5728\u77ed\u6642\u9593\u5167\u91cd\u8907\u63d0\u4ea4\u8868\u55ae\u3001\u767c\u9001\u8acb\u6c42\u6216\u9032\u884c\u767b\u9304\u5617\u8a66\u3002\u9019\u4e0d\u50c5\u53ef\u4ee5\u4fdd\u8b77\u7cfb\u7d71\u514d\u53d7\u60e1\u610f\u653b\u64ca\uff0c\u9084\u80fd\u63d0\u9ad8\u7528\u6236\u9ad4\u9a57\uff0c\u907f\u514d\u56e0\u904e\u5ea6\u8acb\u6c42\u800c\u5c0e\u81f4\u7684\u670d\u52d9\u5668\u904e\u8f09\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%84%aa%e5%8b%a2-BBCxgDAXEr\">Redis\u7684\u512a\u52e2<\/h2>\n<p>Redis\u662f\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5177\u6709\u4ee5\u4e0b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li>\u5feb\u901f\u7684\u8b80\u5beb\u901f\u5ea6\uff1aRedis\u7684\u5167\u5b58\u5b58\u5132\u7279\u6027\u4f7f\u5176\u80fd\u5920\u4ee5\u6beb\u79d2\u7d1a\u7684\u901f\u5ea6\u8655\u7406\u8acb\u6c42\u3002<\/li>\n<li>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff1aRedis\u4e0d\u50c5\u652f\u6301\u5b57\u7b26\u4e32\uff0c\u9084\u652f\u6301\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u5be6\u73fe\u6d3b\u52d5\u6b21\u6578\u9650\u5236\u6642\u66f4\u52a0\u9748\u6d3b\u3002<\/li>\n<li>\u6301\u4e45\u5316\u9078\u9805\uff1aRedis\u63d0\u4f9b\u4e86\u591a\u7a2e\u6301\u4e45\u5316\u9078\u9805\uff0c\u80fd\u5920\u5728\u7cfb\u7d71\u91cd\u555f\u5f8c\u6062\u5fa9\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e5%af%a6%e7%8f%be%e6%b4%bb%e5%8b%95%e6%ac%a1%e6%95%b8%e9%99%90%e5%88%b6-BBCxgDAXEr\">\u4f7f\u7528Redis\u5be6\u73fe\u6d3b\u52d5\u6b21\u6578\u9650\u5236<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528Redis\u5be6\u73fe\u6d3b\u52d5\u6b21\u6578\u9650\u5236\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e8%a8%ad%e5%ae%9a%e9%8d%b5%e5%80%bc-BBCxgDAXEr\">1. \u8a2d\u5b9a\u9375\u503c<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u70ba\u6bcf\u500b\u7528\u6236\u6216IP\u5730\u5740\u8a2d\u5b9a\u4e00\u500b\u552f\u4e00\u7684\u9375\u3002\u9019\u500b\u9375\u53ef\u4ee5\u662f\u7528\u6236ID\u6216IP\u5730\u5740\uff0c\u4e26\u9644\u52a0\u4e00\u500b\u6a19\u8b58\u7b26\uff0c\u4f8b\u5982\u201crequest_count\u201d\u3002<\/p>\n<pre><code>user_id = \"user:12345:request_count\"<\/code><\/pre>\n<h3 id=\"2-%e5%a2%9e%e5%8a%a0%e8%a8%88%e6%95%b8-BBCxgDAXEr\">2. \u589e\u52a0\u8a08\u6578<\/h3>\n<p>\u6bcf\u7576\u7528\u6236\u767c\u9001\u8acb\u6c42\u6642\uff0c\u6211\u5011\u9700\u8981\u589e\u52a0\u8a08\u6578\u3002\u9019\u53ef\u4ee5\u901a\u904eRedis\u7684INCR\u547d\u4ee4\u4f86\u5be6\u73fe\u3002<\/p>\n<pre><code>redis.incr(user_id)<\/code><\/pre>\n<h3 id=\"3-%e8%a8%ad%e5%ae%9a%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-BBCxgDAXEr\">3. \u8a2d\u5b9a\u904e\u671f\u6642\u9593<\/h3>\n<p>\u70ba\u4e86\u9632\u6b62\u8a08\u6578\u7121\u9650\u589e\u9577\uff0c\u6211\u5011\u9700\u8981\u70ba\u9375\u8a2d\u5b9a\u904e\u671f\u6642\u9593\u3002\u9019\u53ef\u4ee5\u901a\u904eEXPIRE\u547d\u4ee4\u4f86\u5be6\u73fe\u3002\u4f8b\u5982\uff0c\u6211\u5011\u53ef\u4ee5\u8a2d\u5b9a\u8a08\u6578\u572860\u79d2\u5f8c\u904e\u671f\u3002<\/p>\n<pre><code>redis.expire(user_id, 60)<\/code><\/pre>\n<h3 id=\"4-%e6%aa%a2%e6%9f%a5%e8%a8%88%e6%95%b8-BBCxgDAXEr\">4. \u6aa2\u67e5\u8a08\u6578<\/h3>\n<p>\u5728\u589e\u52a0\u8a08\u6578\u4e4b\u524d\uff0c\u6211\u5011\u9700\u8981\u6aa2\u67e5\u7576\u524d\u7684\u8a08\u6578\u662f\u5426\u5df2\u9054\u5230\u9650\u5236\u3002\u5982\u679c\u9054\u5230\u9650\u5236\uff0c\u6211\u5011\u53ef\u4ee5\u62d2\u7d55\u8acb\u6c42\u6216\u8fd4\u56de\u932f\u8aa4\u4fe1\u606f\u3002<\/p>\n<pre><code>\ncount = redis.get(user_id)\nif count and int(count) &gt;= limit:\n    return \"\u8acb\u6c42\u6b21\u6578\u8d85\u904e\u9650\u5236\"\nelse:\n    redis.incr(user_id)\n    redis.expire(user_id, 60)\n<\/code><\/pre>\n<h2 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-BBCxgDAXEr\">\u793a\u4f8b\u4ee3\u78bc<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684Python\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528Redis\u4f86\u5be6\u73fe\u6d3b\u52d5\u6b21\u6578\u9650\u5236\uff1a<\/p>\n<pre><code>\nimport redis\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\ndef limit_requests(user_id, limit):\n    user_key = f\"user:{user_id}:request_count\"\n    count = r.get(user_key)\n\n    if count and int(count) &gt;= limit:\n        return \"\u8acb\u6c42\u6b21\u6578\u8d85\u904e\u9650\u5236\"\n    else:\n        r.incr(user_key)\n        r.expire(user_key, 60)\n        return \"\u8acb\u6c42\u6210\u529f\"\n\n# \u6e2c\u8a66\nprint(limit_requests(\"12345\", 5))\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-BBCxgDAXEr\">\u7d50\u8ad6<\/h2>\n<p>\u4f7f\u7528Redis\u5be6\u73fe\u6d3b\u52d5\u6b21\u6578\u9650\u5236\u662f\u4e00\u7a2e\u9ad8\u6548\u4e14\u9748\u6d3b\u7684\u65b9\u6cd5\u3002\u901a\u904e\u7c21\u55ae\u7684\u9375\u503c\u64cd\u4f5c\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u63a7\u5236\u7528\u6236\u7684\u8acb\u6c42\u6b21\u6578\uff0c\u5f9e\u800c\u4fdd\u8b77\u7cfb\u7d71\u8cc7\u6e90\u4e26\u63d0\u9ad8\u7528\u6236\u9ad4\u9a57\u3002\u96a8\u8457\u61c9\u7528\u9700\u6c42\u7684\u589e\u9577\uff0cRedis\u7684\u9ad8\u6027\u80fd\u7279\u6027\u4f7f\u5176\u6210\u70ba\u7406\u60f3\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72\u60a8\u7684Redis\u670d\u52d9\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4f7f\u7528Redis\u5be6\u73fe\u6d3b\u52d5\u6b21\u6578\u9650\u5236\uff0c\u63d0\u5347\u61c9\u7528\u5b89\u5168\u6027\u8207\u6027\u80fd\uff0c\u9632\u6b62\u6feb\u7528\u884c\u70ba\uff0c\u78ba\u4fdd\u8cc7\u6e90\u5408\u7406\u5206\u914d\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-128631","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128631","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=128631"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128631\/revisions"}],"predecessor-version":[{"id":128632,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128631\/revisions\/128632"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=128631"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=128631"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=128631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}