{"id":193663,"date":"2024-11-13T00:04:23","date_gmt":"2024-11-12T16:04:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/193663\/"},"modified":"2024-11-13T00:04:25","modified_gmt":"2024-11-12T16:04:25","slug":"%e7%a0%94%e7%a9%b6redis%e7%a9%bf%e9%80%8f%e6%8a%80%e8%a1%93%e7%9a%84%e6%9c%89%e6%95%88%e6%80%a7%ef%bc%88redis%e7%a9%bf%e9%80%8f%e7%9a%84%e6%9c%89%e6%95%88%e6%80%a7%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/193663\/","title":{"rendered":"\u7814\u7a76Redis\u7a7f\u900f\u6280\u8853\u7684\u6709\u6548\u6027\uff08redis\u7a7f\u900f\u7684\u6709\u6548\u6027\uff09"},"content":{"rendered":"<h1 id=\"%e7%a0%94%e7%a9%b6redis%e7%a9%bf%e9%80%8f%e6%8a%80%e8%a1%93%e7%9a%84%e6%9c%89%e6%95%88%e6%80%a7-ZTqhIDdTVy\">\u7814\u7a76Redis\u7a7f\u900f\u6280\u8853\u7684\u6709\u6548\u6027<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\u3002\u7136\u800c\uff0c\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u589e\u9577\uff0c\u958b\u767c\u8005\u9762\u81e8\u8457\u4e00\u500b\u91cd\u8981\u7684\u6311\u6230\uff1a\u5982\u4f55\u6709\u6548\u5730\u9632\u6b62Redis\u7a7f\u900f\u554f\u984c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u7a7f\u900f\u6280\u8853\u7684\u6709\u6548\u6027\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e7%a9%bf%e9%80%8f%ef%bc%9f-ZTqhIDdTVy\">\u4ec0\u9ebc\u662fRedis\u7a7f\u900f\uff1f<\/h2>\n<p>Redis\u7a7f\u900f\u662f\u6307\u7576\u7528\u6236\u8acb\u6c42\u4e00\u500b\u4e0d\u5b58\u5728\u7684\u9375\u6642\uff0c\u8acb\u6c42\u6703\u76f4\u63a5\u7a7f\u900f\u5230\u5f8c\u7aef\u6578\u64da\u5eab\uff0c\u5c0e\u81f4\u4e0d\u5fc5\u8981\u7684\u67e5\u8a62\u8ca0\u64d4\u3002\u9019\u7a2e\u60c5\u6cc1\u4e0d\u50c5\u6d6a\u8cbb\u4e86\u8cc7\u6e90\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u6027\u80fd\u4e0b\u964d\u3002\u7279\u5225\u662f\u5728\u9ad8\u4f75\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u9019\u7a2e\u554f\u984c\u6703\u66f4\u52a0\u660e\u986f\u3002<\/p>\n<h2 id=\"redis%e7%a9%bf%e9%80%8f%e7%9a%84%e5%bd%b1%e9%9f%bf-ZTqhIDdTVy\">Redis\u7a7f\u900f\u7684\u5f71\u97ff<\/h2>\n<ul>\n<li><strong>\u6027\u80fd\u4e0b\u964d\uff1a<\/strong>\u7576\u5927\u91cf\u8acb\u6c42\u91dd\u5c0d\u4e0d\u5b58\u5728\u7684\u9375\u6642\uff0c\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8ca0\u64d4\u6703\u986f\u8457\u589e\u52a0\uff0c\u5c0e\u81f4\u6574\u9ad4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u6d6a\u8cbb\uff1a<\/strong>\u4e0d\u5fc5\u8981\u7684\u67e5\u8a62\u6703\u6d88\u8017\u7cfb\u7d71\u8cc7\u6e90\uff0c\u589e\u52a0\u904b\u884c\u6210\u672c\u3002<\/li>\n<li><strong>\u7528\u6236\u9ad4\u9a57\u53d7\u640d\uff1a<\/strong>\u9ad8\u5ef6\u9072\u7684\u97ff\u61c9\u6642\u9593\u6703\u5f71\u97ff\u7528\u6236\u7684\u4f7f\u7528\u9ad4\u9a57\uff0c\u53ef\u80fd\u5c0e\u81f4\u7528\u6236\u6d41\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"redis%e7%a9%bf%e9%80%8f%e6%8a%80%e8%a1%93%e7%9a%84%e6%9c%89%e6%95%88%e6%80%a7-ZTqhIDdTVy\">Redis\u7a7f\u900f\u6280\u8853\u7684\u6709\u6548\u6027<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u89e3\u6c7aRedis\u7a7f\u900f\u554f\u984c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63a1\u53d6\u591a\u7a2e\u6280\u8853\u624b\u6bb5\u3002\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e5%b8%83%e9%9a%86%e9%81%8e%e6%bf%be%e5%99%a8-ZTqhIDdTVy\">1. \u4f7f\u7528\u5e03\u9686\u904e\u6ffe\u5668<\/h3>\n<p>\u5e03\u9686\u904e\u6ffe\u5668\u662f\u4e00\u7a2e\u7a7a\u9593\u6548\u7387\u9ad8\u7684\u6982\u7387\u6027\u6578\u64da\u7d50\u69cb\uff0c\u53ef\u4ee5\u7528\u4f86\u5224\u65b7\u4e00\u500b\u5143\u7d20\u662f\u5426\u5728\u4e00\u500b\u96c6\u5408\u4e2d\u3002\u901a\u904e\u5728Redis\u524d\u7aef\u4f7f\u7528\u5e03\u9686\u904e\u6ffe\u5668\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5728\u67e5\u8a62\u4e4b\u524d\u5148\u6aa2\u67e5\u8a72\u9375\u662f\u5426\u5b58\u5728\uff0c\u5f9e\u800c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u67e5\u8a62\u3002<\/p>\n<pre><code>\n# \u5047\u8a2d\u4f7f\u7528Python\u7684redis-py\u5eab\nfrom redis import Redis\nfrom pybloom_live import BloomFilter\n\nredis_client = Redis()\nbloom = BloomFilter(capacity=100000, error_rate=0.001)\n\n# \u6dfb\u52a0\u5b58\u5728\u7684\u9375\u5230\u5e03\u9686\u904e\u6ffe\u5668\nbloom.add('existing_key')\n\n# \u67e5\u8a62\u6642\u5148\u6aa2\u67e5\u5e03\u9686\u904e\u6ffe\u5668\nif 'non_existing_key' in bloom:\n    result = redis_client.get('non_existing_key')\nelse:\n    result = None  # \u4e0d\u67e5\u8a62\u5f8c\u7aef\u6578\u64da\u5eab\n<\/code><\/pre>\n<h3 id=\"2-%e7%b7%a9%e5%ad%98%e7%a9%ba%e7%b5%90%e6%9e%9c-ZTqhIDdTVy\">2. \u7de9\u5b58\u7a7a\u7d50\u679c<\/h3>\n<p>\u5c0d\u65bc\u67e5\u8a62\u7d50\u679c\u70ba\u7a7a\u7684\u8acb\u6c42\uff0c\u53ef\u4ee5\u5c07\u9019\u4e9b\u7a7a\u7d50\u679c\u7de9\u5b58\u5230Redis\u4e2d\uff0c\u4e26\u8a2d\u7f6e\u4e00\u500b\u5408\u7406\u7684\u904e\u671f\u6642\u9593\u3002\u9019\u6a23\uff0c\u7576\u76f8\u540c\u7684\u8acb\u6c42\u518d\u6b21\u767c\u751f\u6642\uff0c\u53ef\u4ee5\u76f4\u63a5\u5f9eRedis\u4e2d\u7372\u53d6\u7d50\u679c\uff0c\u800c\u4e0d\u5fc5\u67e5\u8a62\u5f8c\u7aef\u6578\u64da\u5eab\u3002<\/p>\n<pre><code>\n# \u7de9\u5b58\u7a7a\u7d50\u679c\ndef get_data(key):\n    result = redis_client.get(key)\n    if result is None:\n        # \u67e5\u8a62\u5f8c\u7aef\u6578\u64da\u5eab\n        result = query_database(key)\n        if result is None:\n            # \u7de9\u5b58\u7a7a\u7d50\u679c\n            redis_client.set(key, '', ex=60)  # \u8a2d\u7f6e\u904e\u671f\u6642\u9593\u70ba60\u79d2\n    return result\n<\/code><\/pre>\n<h3 id=\"3-%e9%99%90%e6%b5%81%e5%92%8c%e7%86%94%e6%96%b7-ZTqhIDdTVy\">3. \u9650\u6d41\u548c\u7194\u65b7<\/h3>\n<p>\u5728\u9ad8\u4f75\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u9650\u6d41\u548c\u7194\u65b7\u6280\u8853\u4f86\u63a7\u5236\u8acb\u6c42\u7684\u6578\u91cf\uff0c\u907f\u514d\u7cfb\u7d71\u904e\u8f09\u3002\u9019\u4e9b\u6280\u8853\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8acb\u6c42\uff0c\u5f9e\u800c\u964d\u4f4eRedis\u7a7f\u900f\u7684\u5f71\u97ff\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-ZTqhIDdTVy\">\u7d50\u8ad6<\/h2>\n<p>Redis\u7a7f\u900f\u554f\u984c\u662f\u4e00\u500b\u4e0d\u5bb9\u5ffd\u8996\u7684\u6311\u6230\uff0c\u4f46\u901a\u904e\u6709\u6548\u7684\u6280\u8853\u624b\u6bb5\uff0c\u5982\u5e03\u9686\u904e\u6ffe\u5668\u3001\u7de9\u5b58\u7a7a\u7d50\u679c\u4ee5\u53ca\u9650\u6d41\u548c\u7194\u65b7\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u80fd\u5920\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u58d3\u529b\uff0c\u9084\u80fd\u63d0\u5347\u7528\u6236\u7684\u6574\u9ad4\u9ad4\u9a57\u3002<\/p>\n<p>\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u5132\u548c\u8655\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f7f\u7528Redis\u9084\u662f\u5176\u4ed6\u6578\u64da\u5eab\u6280\u8853\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u90fd\u662f\u6210\u529f\u7684\u95dc\u9375\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u7a7f\u900f\u6280\u672f\u7684\u6709\u6548\u6027\uff0c\u5206\u6790\u5176\u5728\u6570\u636e\u7f13\u5b58\u548c\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u5e94\u7528\u4e0e\u4f18\u52bf\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-193663","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193663","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=193663"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193663\/revisions"}],"predecessor-version":[{"id":193664,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193663\/revisions\/193664"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=193663"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=193663"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=193663"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}