{"id":128425,"date":"2024-10-26T14:03:17","date_gmt":"2024-10-26T06:03:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/128425\/"},"modified":"2024-10-26T14:03:18","modified_gmt":"2024-10-26T06:03:18","slug":"redis-%e5%af%a6%e7%8f%be%e5%8b%95%e6%85%8b%e9%99%90%e6%b5%81%e5%9f%ba%e6%96%bc%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93%e7%9a%84%e9%99%90%e6%b5%81%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/128425\/","title":{"rendered":"Redis \u5be6\u73fe\u52d5\u614b\u9650\u6d41\u57fa\u65bc\u904e\u671f\u6642\u9593\u7684\u9650\u6d41\u65b9\u6848"},"content":{"rendered":"<h1 id=\"redis-%e5%af%a6%e7%8f%be%e5%8b%95%e6%85%8b%e9%99%90%e6%b5%81%e5%9f%ba%e6%96%bc%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93%e7%9a%84%e9%99%90%e6%b5%81%e6%96%b9%e6%a1%88-jDVvBdwFqc\">Redis \u5be6\u73fe\u52d5\u614b\u9650\u6d41\u57fa\u65bc\u904e\u671f\u6642\u9593\u7684\u9650\u6d41\u65b9\u6848<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u9650\u6d41\u6280\u8853\u5df2\u6210\u70ba\u4fdd\u8b77\u61c9\u7528\u7a0b\u5e8f\u548c\u670d\u52d9\u7684\u91cd\u8981\u624b\u6bb5\u3002\u7279\u5225\u662f\u5728\u9ad8\u6d41\u91cf\u7684\u60c5\u6cc1\u4e0b\uff0c\u5408\u7406\u7684\u9650\u6d41\u7b56\u7565\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u670d\u52d9\u5668\u904e\u8f09\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u7528\u6027\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5be6\u73fe\u9650\u6d41\u7684\u65b9\u6848\uff0c\u5176\u4e2d\u57fa\u65bc\u904e\u671f\u6642\u9593\u7684\u52d5\u614b\u9650\u6d41\u65b9\u6848\u5c24\u70ba\u53d7\u5230\u95dc\u6ce8\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e9%99%90%e6%b5%81%ef%bc%9f-jDVvBdwFqc\">\u4ec0\u9ebc\u662f\u9650\u6d41\uff1f<\/h2>\n<p>\u9650\u6d41\u662f\u6307\u5c0d\u67d0\u4e00\u8cc7\u6e90\u7684\u8a2a\u554f\u9032\u884c\u63a7\u5236\uff0c\u4ee5\u9632\u6b62\u904e\u591a\u7684\u8acb\u6c42\u5c0e\u81f4\u7cfb\u7d71\u5d29\u6f70\u6216\u6027\u80fd\u4e0b\u964d\u3002\u9650\u6d41\u53ef\u4ee5\u6839\u64da\u6642\u9593\u7a97\u53e3\u3001\u8acb\u6c42\u6578\u91cf\u7b49\u591a\u7a2e\u65b9\u5f0f\u9032\u884c\u8a2d\u7f6e\u3002\u5e38\u898b\u7684\u9650\u6d41\u7b56\u7565\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u56fa\u5b9a\u7a97\u53e3\u9650\u6d41<\/li>\n<li>\u6ed1\u52d5\u7a97\u53e3\u9650\u6d41<\/li>\n<li>\u4ee4\u724c\u6876\u7b97\u6cd5<\/li>\n<li>\u6f0f\u6876\u7b97\u6cd5<\/li>\n<\/ul>\n<h2 id=\"redis-%e7%9a%84%e5%84%aa%e5%8b%a2-jDVvBdwFqc\">Redis \u7684\u512a\u52e2<\/h2>\n<p>Redis \u4ee5\u5176\u9ad8\u6027\u80fd\u548c\u7c21\u55ae\u7684\u6578\u64da\u7d50\u69cb\u800c\u805e\u540d\uff0c\u7279\u5225\u9069\u5408\u7528\u65bc\u5be6\u73fe\u9650\u6d41\u3002\u5176\u652f\u6301\u7684\u9375\u503c\u5c0d\u5b58\u5132\u65b9\u5f0f\u548c\u904e\u671f\u6642\u9593\u8a2d\u7f6e\uff0c\u4f7f\u5f97\u9650\u6d41\u7684\u5be6\u73fe\u8b8a\u5f97\u66f4\u52a0\u9748\u6d3b\u548c\u9ad8\u6548\u3002\u4f7f\u7528 Redis \u9032\u884c\u9650\u6d41\u7684\u4e3b\u8981\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u9ad8\u6548\u7684\u8b80\u5beb\u6027\u80fd<\/li>\n<li>\u652f\u6301\u539f\u5b50\u64cd\u4f5c<\/li>\n<li>\u7c21\u55ae\u7684\u904e\u671f\u6642\u9593\u8a2d\u7f6e<\/li>\n<\/ul>\n<h2 id=\"%e5%9f%ba%e6%96%bc%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93%e7%9a%84%e9%99%90%e6%b5%81%e6%96%b9%e6%a1%88-jDVvBdwFqc\">\u57fa\u65bc\u904e\u671f\u6642\u9593\u7684\u9650\u6d41\u65b9\u6848<\/h2>\n<p>\u57fa\u65bc\u904e\u671f\u6642\u9593\u7684\u9650\u6d41\u65b9\u6848\u4e3b\u8981\u662f\u901a\u904e\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\u4f86\u63a7\u5236\u8acb\u6c42\u7684\u983b\u7387\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u5be6\u73fe\u793a\u4f8b\uff1a<\/p>\n<pre><code>SET key value EX expire_time<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u7576\u7528\u6236\u767c\u9001\u8acb\u6c42\u6642\uff0c\u7cfb\u7d71\u6703\u6aa2\u67e5\u662f\u5426\u5b58\u5728\u5c0d\u61c9\u7684\u9375\u3002\u5982\u679c\u9375\u4e0d\u5b58\u5728\uff0c\u5247\u5275\u5efa\u4e00\u500b\u65b0\u9375\u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff1b\u5982\u679c\u9375\u5df2\u5b58\u5728\uff0c\u5247\u8868\u793a\u7528\u6236\u5df2\u9054\u5230\u9650\u6d41\u689d\u4ef6\uff0c\u7cfb\u7d71\u5c07\u62d2\u7d55\u8a72\u8acb\u6c42\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-jDVvBdwFqc\">\u793a\u4f8b\u4ee3\u78bc<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528 Redis \u5be6\u73fe\u52d5\u614b\u9650\u6d41\u7684 Python \u4ee3\u78bc\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nimport redis\nimport time\n\n# \u9023\u63a5\u5230 Redis\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\ndef rate_limiter(user_id, limit, expire_time):\n    key = f\"rate_limit:{user_id}\"\n    current_count = r.get(key)\n\n    if current_count is None:\n        # \u5982\u679c\u9375\u4e0d\u5b58\u5728\uff0c\u8a2d\u7f6e\u9375\u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\n        r.set(key, 1, ex=expire_time)\n        return True\n    elif int(current_count) &lt; limit:\n        # \u5982\u679c\u7576\u524d\u8acb\u6c42\u6578\u5c0f\u65bc\u9650\u5236\uff0c\u589e\u52a0\u8a08\u6578\n        r.incr(key)\n        return True\n    else:\n        # \u8d85\u904e\u9650\u5236\n        return False\n\n# \u4f7f\u7528\u793a\u4f8b\nuser_id = &quot;user123&quot;\nlimit = 5\nexpire_time = 60  # 60\u79d2\n\nfor i in range(10):\n    if rate_limiter(user_id, limit, expire_time):\n        print(&quot;\u8acb\u6c42\u6210\u529f&quot;)\n    else:\n        print(&quot;\u8acb\u6c42\u88ab\u62d2\u7d55\uff0c\u8d85\u904e\u9650\u6d41\u9650\u5236&quot;)\n    time.sleep(5)  # \u6a21\u64ec\u8acb\u6c42\u9593\u9694\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-jDVvBdwFqc\">\u7e3d\u7d50<\/h2>\n<p>\u57fa\u65bc\u904e\u671f\u6642\u9593\u7684\u9650\u6d41\u65b9\u6848\u5229\u7528 Redis \u7684\u9ad8\u6548\u6027\u80fd\u548c\u7c21\u55ae\u7684\u904e\u671f\u8a2d\u7f6e\uff0c\u70ba\u61c9\u7528\u7a0b\u5e8f\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9748\u6d3b\u7684\u9650\u6d41\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u7f6e\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u7528\u6236\u7684\u8acb\u6c42\u983b\u7387\uff0c\u4fdd\u8b77\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u7121\u8ad6\u662f\u9078\u64c7 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u90fd\u80fd\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528 Redis \u5be6\u73fe\u57fa\u65bc\u904e\u671f\u6642\u9593\u7684\u52d5\u614b\u9650\u6d41\u65b9\u6848\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\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-128425","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128425","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=128425"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128425\/revisions"}],"predecessor-version":[{"id":128426,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128425\/revisions\/128426"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=128425"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=128425"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=128425"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}