{"id":161413,"date":"2024-11-04T06:13:20","date_gmt":"2024-11-03T22:13:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/161413\/"},"modified":"2024-11-04T06:13:21","modified_gmt":"2024-11-03T22:13:21","slug":"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e6%bc%8f%e6%a1%b6%e7%ae%97%e6%b3%95%e5%af%a6%e7%8f%be%e6%b5%81%e9%87%8f%e9%99%90%e5%88%b6%ef%bc%88redis-%e6%bc%8f%e6%a1%b6%e7%ae%97%e6%b3%95%e5%af%a6%e7%8f%be","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/161413\/","title":{"rendered":"\u57fa\u65bc Redis \u7684\u6f0f\u6876\u7b97\u6cd5\u5be6\u73fe\u6d41\u91cf\u9650\u5236\uff08redis \u6f0f\u6876\u7b97\u6cd5\u5be6\u73fe\uff09"},"content":{"rendered":"<h1 id=\"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e6%bc%8f%e6%a1%b6%e7%ae%97%e6%b3%95%e5%af%a6%e7%8f%be%e6%b5%81%e9%87%8f%e9%99%90%e5%88%b6-rtgBaoxtaL\">\u57fa\u65bc Redis \u7684\u6f0f\u6876\u7b97\u6cd5\u5be6\u73fe\u6d41\u91cf\u9650\u5236<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u6d41\u91cf\u9650\u5236\u662f\u4e00\u500b\u81f3\u95dc\u91cd\u8981\u7684\u6280\u8853\uff0c\u5c24\u5176\u662f\u5728\u9ad8\u6d41\u91cf\u7684\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u6f0f\u6876\u7b97\u6cd5\u4f5c\u70ba\u4e00\u7a2e\u6d41\u91cf\u63a7\u5236\u6280\u8853\uff0c\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u8acb\u6c42\u6d41\u91cf\uff0c\u9632\u6b62\u7cfb\u7d71\u904e\u8f09\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u57fa\u65bc Redis \u5be6\u73fe\u6f0f\u6876\u7b97\u6cd5\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%bc%8f%e6%a1%b6%e7%ae%97%e6%b3%95%ef%bc%9f-rtgBaoxtaL\">\u4ec0\u9ebc\u662f\u6f0f\u6876\u7b97\u6cd5\uff1f<\/h2>\n<p>\u6f0f\u6876\u7b97\u6cd5\u662f\u4e00\u7a2e\u6d41\u91cf\u63a7\u5236\u6a5f\u5236\uff0c\u901a\u904e\u5c07\u8acb\u6c42\u653e\u5165\u4e00\u500b\u56fa\u5b9a\u5927\u5c0f\u7684\u201c\u6876\u201d\u4e2d\u4f86\u9650\u5236\u6d41\u91cf\u3002\u6876\u4e2d\u7684\u6c34\u4ee5\u56fa\u5b9a\u7684\u901f\u7387\u6d41\u51fa\uff0c\u7576\u8acb\u6c42\u5230\u9054\u6642\uff0c\u5982\u679c\u6876\u5df2\u6eff\uff0c\u5247\u65b0\u8acb\u6c42\u5c07\u88ab\u4e1f\u68c4\u6216\u5ef6\u9072\u3002\u9019\u7a2e\u65b9\u6cd5\u80fd\u5920\u5e73\u6ed1\u6d41\u91cf\uff0c\u907f\u514d\u77ac\u6642\u9ad8\u5cf0\u5c0d\u7cfb\u7d71\u9020\u6210\u7684\u5f71\u97ff\u3002<\/p>\n<h2 id=\"%e6%bc%8f%e6%a1%b6%e7%ae%97%e6%b3%95%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-rtgBaoxtaL\">\u6f0f\u6876\u7b97\u6cd5\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>\u6f0f\u6876\u7b97\u6cd5\u7684\u57fa\u672c\u5de5\u4f5c\u539f\u7406\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u6bcf\u7576\u6709\u8acb\u6c42\u5230\u9054\u6642\uff0c\u6aa2\u67e5\u6876\u7684\u7576\u524d\u6c34\u4f4d\u3002<\/li>\n<li>\u5982\u679c\u6876\u672a\u6eff\uff0c\u5247\u5c07\u8acb\u6c42\u653e\u5165\u6876\u4e2d\uff0c\u4e26\u589e\u52a0\u6c34\u4f4d\u3002<\/li>\n<li>\u5982\u679c\u6876\u5df2\u6eff\uff0c\u5247\u62d2\u7d55\u8a72\u8acb\u6c42\u6216\u5c07\u5176\u6392\u968a\u3002<\/li>\n<li>\u4ee5\u56fa\u5b9a\u7684\u901f\u7387\u5f9e\u6876\u4e2d\u6392\u51fa\u8acb\u6c42\uff0c\u9019\u6a23\u53ef\u4ee5\u4fdd\u6301\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87-redis%ef%bc%9f-rtgBaoxtaL\">\u70ba\u4ec0\u9ebc\u9078\u64c7 Redis\uff1f<\/h2>\n<p>Redis \u662f\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5177\u6709\u5feb\u901f\u7684\u8b80\u5beb\u6027\u80fd\u548c\u8c50\u5bcc\u7684\u6578\u64da\u7d50\u69cb\uff0c\u7279\u5225\u9069\u5408\u7528\u65bc\u5be6\u73fe\u6f0f\u6876\u7b97\u6cd5\u3002\u4f7f\u7528 Redis \u53ef\u4ee5\u8f15\u9b06\u5730\u7ba1\u7406\u6876\u7684\u72c0\u614b\uff0c\u4e26\u4e14\u652f\u6301\u5206\u4f48\u5f0f\u74b0\u5883\u4e0b\u7684\u9ad8\u4f75\u767c\u8acb\u6c42\u3002<\/p>\n<h2 id=\"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e6%bc%8f%e6%a1%b6%e7%ae%97%e6%b3%95%e5%af%a6%e7%8f%be-rtgBaoxtaL\">\u57fa\u65bc Redis \u7684\u6f0f\u6876\u7b97\u6cd5\u5be6\u73fe<\/h2>\n<p>\u4ee5\u4e0b\u662f\u57fa\u65bc Redis \u5be6\u73fe\u6f0f\u6876\u7b97\u6cd5\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e5%88%9d%e5%a7%8b%e5%8c%96%e6%a1%b6-rtgBaoxtaL\">1. \u521d\u59cb\u5316\u6876<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5728 Redis \u4e2d\u521d\u59cb\u5316\u6876\u7684\u5bb9\u91cf\u548c\u6f0f\u6c34\u901f\u7387\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u7684\u5b57\u7b26\u4e32\u985e\u578b\u4f86\u5b58\u5132\u6876\u7684\u6c34\u4f4d\u548c\u4e0a\u6b21\u66f4\u65b0\u7684\u6642\u9593\u3002<\/p>\n<pre><code>SET bucket:capacity 100  # \u6876\u7684\u5bb9\u91cf\nSET bucket:water 0        # \u7576\u524d\u6c34\u4f4d\nSET bucket:last_time [\u7576\u524d\u6642\u9593]  # \u4e0a\u6b21\u66f4\u65b0\u7684\u6642\u9593\n<\/code><\/pre>\n<h3 id=\"2-%e8%ab%8b%e6%b1%82%e5%88%b0%e9%81%94%e6%99%82%e7%9a%84%e8%99%95%e7%90%86-rtgBaoxtaL\">2. \u8acb\u6c42\u5230\u9054\u6642\u7684\u8655\u7406<\/h3>\n<p>\u7576\u8acb\u6c42\u5230\u9054\u6642\uff0c\u6211\u5011\u9700\u8981\u6aa2\u67e5\u6876\u7684\u72c0\u614b\uff0c\u4e26\u6839\u64da\u6f0f\u6c34\u901f\u7387\u66f4\u65b0\u6c34\u4f4d\u3002<\/p>\n<pre><code>\ndef handle_request():\n    current_time = time.time()\n    last_time = float(redis.get(\"bucket:last_time\"))\n    water = float(redis.get(\"bucket:water\"))\n    capacity = float(redis.get(\"bucket:capacity\"))\n\n    # \u8a08\u7b97\u6f0f\u6c34\u91cf\n    elapsed_time = current_time - last_time\n    leaked_water = elapsed_time * leak_rate\n    new_water = max(0, water - leaked_water)\n\n    # \u66f4\u65b0\u6876\u7684\u6c34\u4f4d\n    redis.set(\"bucket:water\", new_water)\n    redis.set(\"bucket:last_time\", current_time)\n\n    # \u6aa2\u67e5\u662f\u5426\u53ef\u4ee5\u653e\u5165\u8acb\u6c42\n    if new_water &lt; capacity:\n        redis.incr(&quot;bucket:water&quot;)  # \u589e\u52a0\u6c34\u4f4d\n        return &quot;\u8acb\u6c42\u8655\u7406\u6210\u529f&quot;\n    else:\n        return &quot;\u8acb\u6c42\u88ab\u62d2\u7d55\uff0c\u6876\u5df2\u6eff&quot;\n<\/code><\/pre>\n<h3 id=\"3-%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86-rtgBaoxtaL\">3. \u5b9a\u671f\u6e05\u7406<\/h3>\n<p>\u70ba\u4e86\u4fdd\u6301\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\uff0c\u6211\u5011\u53ef\u4ee5\u8a2d\u7f6e\u4e00\u500b\u5b9a\u6642\u4efb\u52d9\uff0c\u5b9a\u671f\u6e05\u7406\u6876\u4e2d\u7684\u6c34\u4f4d\uff0c\u78ba\u4fdd\u4e0d\u6703\u56e0\u70ba\u9577\u6642\u9593\u672a\u8655\u7406\u7684\u8acb\u6c42\u800c\u5c0e\u81f4\u6876\u7684\u6c34\u4f4d\u7570\u5e38\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-rtgBaoxtaL\">\u7e3d\u7d50<\/h2>\n<p>\u57fa\u65bc Redis \u7684\u6f0f\u6876\u7b97\u6cd5\u662f\u4e00\u7a2e\u6709\u6548\u7684\u6d41\u91cf\u9650\u5236\u6280\u8853\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u7ba1\u7406\u9ad8\u6d41\u91cf\u7684\u8acb\u6c42\uff0c\u4fdd\u8b77\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002\u901a\u904e\u7c21\u55ae\u7684\u4ee3\u78bc\u5be6\u73fe\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5c07\u9019\u4e00\u7b97\u6cd5\u61c9\u7528\u65bc\u81ea\u5df1\u7684\u9805\u76ee\u4e2d\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6d41\u91cf\u7ba1\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u660e\u667a\u4e4b\u8209\uff0c\u7279\u5225\u662f\u5728\u9999\u6e2f\u9019\u6a23\u7684\u9ad8\u6d41\u91cf\u74b0\u5883\u4e2d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u57fa\u65bc Redis \u7684\u6f0f\u6876\u7b97\u6cd5\u5be6\u73fe\u6d41\u91cf\u9650\u5236\uff0c\u63d0\u4f9b\u9ad8\u6548\u7a69\u5b9a\u7684\u8acb\u6c42\u63a7\u5236\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u6027\u8207\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-161413","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161413","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=161413"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161413\/revisions"}],"predecessor-version":[{"id":161414,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161413\/revisions\/161414"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=161413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=161413"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=161413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}