{"id":167205,"date":"2024-11-05T23:14:28","date_gmt":"2024-11-05T15:14:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/167205\/"},"modified":"2024-11-05T23:14:29","modified_gmt":"2024-11-05T15:14:29","slug":"%e5%88%a9%e7%94%a8redis%e9%98%b2%e7%af%84%e7%b7%a9%e5%ad%98%e7%a9%bf%e9%80%8f%ef%bc%88redis%e7%9a%84%e6%93%8a%e7%b7%a9%e5%ad%98%e7%a9%bf%e9%80%8f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/167205\/","title":{"rendered":"\u5229\u7528Redis\u9632\u7bc4\u7de9\u5b58\u7a7f\u900f\uff08redis\u7684\u64ca\u7de9\u5b58\u7a7f\u900f\uff09"},"content":{"rendered":"<h1 id=\"%e5%88%a9%e7%94%a8redis%e9%98%b2%e7%af%84%e7%b7%a9%e5%ad%98%e7%a9%bf%e9%80%8f%ef%bc%88redis%e7%9a%84%e6%93%8a%e7%b7%a9%e5%ad%98%e7%a9%bf%e9%80%8f%ef%bc%89-SKtNNhAEbC\">\u5229\u7528Redis\u9632\u7bc4\u7de9\u5b58\u7a7f\u900f\uff08Redis\u7684\u64ca\u7de9\u5b58\u7a7f\u900f\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u7de9\u5b58\u6280\u8853\u5df2\u6210\u70ba\u63d0\u5347\u6027\u80fd\u548c\u6e1b\u5c11\u5f8c\u7aef\u8ca0\u64d4\u7684\u91cd\u8981\u624b\u6bb5\u3002\u7136\u800c\uff0c\u96a8\u8457\u7de9\u5b58\u6280\u8853\u7684\u5ee3\u6cdb\u61c9\u7528\uff0c\u7de9\u5b58\u7a7f\u900f\u554f\u984c\u4e5f\u9010\u6f38\u6d6e\u51fa\u6c34\u9762\u3002\u7de9\u5b58\u7a7f\u900f\u662f\u6307\u8acb\u6c42\u7684\u6578\u64da\u5728\u7de9\u5b58\u4e2d\u4e0d\u5b58\u5728\uff0c\u4e26\u4e14\u9019\u4e9b\u8acb\u6c42\u76f4\u63a5\u6253\u5230\u5f8c\u7aef\u6578\u64da\u5eab\uff0c\u5c0e\u81f4\u6578\u64da\u5eab\u7684\u8ca0\u64d4\u52a0\u91cd\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u9632\u7bc4\u7de9\u5b58\u7a7f\u900f\u554f\u984c\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%b7%a9%e5%ad%98%e7%a9%bf%e9%80%8f%ef%bc%9f-SKtNNhAEbC\">\u4ec0\u9ebc\u662f\u7de9\u5b58\u7a7f\u900f\uff1f<\/h2>\n<p>\u7de9\u5b58\u7a7f\u900f\u662f\u6307\u7528\u6236\u8acb\u6c42\u7684\u6578\u64da\u5728\u7de9\u5b58\u4e2d\u627e\u4e0d\u5230\uff0c\u9019\u4e9b\u8acb\u6c42\u6703\u76f4\u63a5\u5230\u9054\u5f8c\u7aef\u6578\u64da\u5eab\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u7528\u6236\u8acb\u6c42\u7684\u6578\u64da\u6839\u672c\u4e0d\u5b58\u5728\uff0c\u6216\u8005\u8acb\u6c42\u7684\u53c3\u6578\u4e0d\u6b63\u78ba\u3002\u9019\u6a23\u7684\u8acb\u6c42\u4e0d\u50c5\u6d6a\u8cbb\u4e86\u7cfb\u7d71\u8cc7\u6e90\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u5eab\u7684\u6027\u80fd\u4e0b\u964d\uff0c\u751a\u81f3\u5d29\u6f70\u3002<\/p>\n<h2 id=\"%e7%b7%a9%e5%ad%98%e7%a9%bf%e9%80%8f%e7%9a%84%e6%88%90%e5%9b%a0-SKtNNhAEbC\">\u7de9\u5b58\u7a7f\u900f\u7684\u6210\u56e0<\/h2>\n<ul>\n<li><strong>\u7121\u6548\u7684\u8acb\u6c42\uff1a<\/strong>\u7528\u6236\u53ef\u80fd\u6703\u767c\u9001\u4e00\u4e9b\u7121\u6548\u7684\u8acb\u6c42\uff0c\u4f8b\u5982\u67e5\u8a62\u4e0d\u5b58\u5728\u7684ID\u3002<\/li>\n<li><strong>\u60e1\u610f\u653b\u64ca\uff1a<\/strong>\u653b\u64ca\u8005\u53ef\u80fd\u6703\u6545\u610f\u767c\u9001\u5927\u91cf\u7684\u7121\u6548\u8acb\u6c42\uff0c\u8a66\u5716\u4f7f\u7cfb\u7d71\u5d29\u6f70\u3002<\/li>\n<li><strong>\u6578\u64da\u4e0d\u4e00\u81f4\uff1a<\/strong>\u7576\u6578\u64da\u66f4\u65b0\u6216\u522a\u9664\u5f8c\uff0c\u7de9\u5b58\u672a\u80fd\u53ca\u6642\u66f4\u65b0\uff0c\u5c0e\u81f4\u8acb\u6c42\u7684\u6578\u64da\u4e0d\u5b58\u5728\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8redis%e9%98%b2%e7%af%84%e7%b7%a9%e5%ad%98%e7%a9%bf%e9%80%8f-SKtNNhAEbC\">\u5982\u4f55\u5229\u7528Redis\u9632\u7bc4\u7de9\u5b58\u7a7f\u900f<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u6709\u6548\u9632\u7bc4\u7de9\u5b58\u7a7f\u900f\u554f\u984c\uff0c\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-SKtNNhAEbC\">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\u578b\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\u5c07\u6240\u6709\u53ef\u80fd\u7684\u8acb\u6c42\u53c3\u6578\u5b58\u5132\u5728\u5e03\u9686\u904e\u6ffe\u5668\u4e2d\uff0c\u7576\u7528\u6236\u767c\u9001\u8acb\u6c42\u6642\uff0c\u9996\u5148\u6aa2\u67e5\u8a72\u8acb\u6c42\u662f\u5426\u5b58\u5728\u65bc\u5e03\u9686\u904e\u6ffe\u5668\u4e2d\u3002\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5247\u53ef\u4ee5\u76f4\u63a5\u8fd4\u56de\u7a7a\u7d50\u679c\uff0c\u907f\u514d\u67e5\u8a62\u5f8c\u7aef\u6578\u64da\u5eab\u3002<\/p>\n<pre><code>\n# \u5047\u8a2d\u4f7f\u7528Python\u548credis-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\u7684ID\u5230\u5e03\u9686\u904e\u6ffe\u5668\nfor id in existing_ids:\n    bloom.add(id)\n\n# \u67e5\u8a62\u8acb\u6c42\nif request_id in bloom:\n    # \u67e5\u8a62\u6578\u64da\u5eab\n    data = query_database(request_id)\nelse:\n    # \u8fd4\u56de\u7a7a\u7d50\u679c\n    return None\n<\/code><\/pre>\n<h3 id=\"2-%e7%b7%a9%e5%ad%98%e7%a9%ba%e7%b5%90%e6%9e%9c-SKtNNhAEbC\">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\u8acb\u6c42\u7684\u7d50\u679c\u7de9\u5b58\u4e00\u6bb5\u6642\u9593\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u5f8c\u7aef\u6578\u64da\u5eab\u6c92\u6709\u8a72\u6578\u64da\uff0c\u5f8c\u7e8c\u7684\u76f8\u540c\u8acb\u6c42\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5f9e\u7de9\u5b58\u4e2d\u7372\u53d6\u7a7a\u7d50\u679c\uff0c\u6e1b\u5c11\u5c0d\u6578\u64da\u5eab\u7684\u8acb\u6c42\u3002<\/p>\n<pre><code>\n# \u5047\u8a2d\u4f7f\u7528Python\u548credis-py\u5eab\ndef get_data(request_id):\n    # \u5148\u67e5\u8a62\u7de9\u5b58\n    data = redis_client.get(request_id)\n    if data is not None:\n        return data\n    \n    # \u67e5\u8a62\u6578\u64da\u5eab\n    data = query_database(request_id)\n    \n    # \u5982\u679c\u6578\u64da\u70ba\u7a7a\uff0c\u5247\u7de9\u5b58\u7a7a\u7d50\u679c\n    if data is None:\n        redis_client.setex(request_id, 60, None)  # \u7de9\u5b5860\u79d2\n    return data\n<\/code><\/pre>\n<h3 id=\"3-%e9%99%90%e5%88%b6%e8%ab%8b%e6%b1%82%e9%a0%bb%e7%8e%87-SKtNNhAEbC\">3. \u9650\u5236\u8acb\u6c42\u983b\u7387<\/h3>\n<p>\u5c0d\u65bc\u540c\u4e00\u500b\u8acb\u6c42\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u8acb\u6c42\u983b\u7387\u9650\u5236\uff0c\u9632\u6b62\u77ed\u6642\u9593\u5167\u5927\u91cf\u76f8\u540c\u8acb\u6c42\u6253\u5230\u5f8c\u7aef\u6578\u64da\u5eab\u3002\u9019\u53ef\u4ee5\u901a\u904eRedis\u7684\u8a08\u6578\u5668\u4f86\u5be6\u73fe\u3002<\/p>\n<pre><code>\n# \u5047\u8a2d\u4f7f\u7528Python\u548credis-py\u5eab\ndef rate_limit(request_id):\n    key = f\"rate_limit:{request_id}\"\n    current_count = redis_client.incr(key)\n    \n    if current_count == 1:\n        redis_client.expire(key, 60)  # \u8a2d\u7f6e\u904e\u671f\u6642\u9593\u70ba60\u79d2\n    \n    if current_count &gt; MAX_REQUESTS:\n        return False  # \u8d85\u904e\u9650\u5236\n    return True\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-SKtNNhAEbC\">\u7e3d\u7d50<\/h2>\n<p>\u7de9\u5b58\u7a7f\u900f\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u4f46\u901a\u904e\u4f7f\u7528Redis\u7684\u5e03\u9686\u904e\u6ffe\u5668\u3001\u7de9\u5b58\u7a7a\u7d50\u679c\u548c\u9650\u5236\u8acb\u6c42\u983b\u7387\u7b49\u6280\u8853\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u9632\u7bc4\u9019\u4e00\u554f\u984c\u3002\u9019\u4e0d\u50c5\u80fd\u5920\u63d0\u5347\u7cfb\u7d71\u7684\u6027\u80fd\uff0c\u9084\u80fd\u6e1b\u5c11\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8ca0\u64d4\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u7de9\u5b58\u7b56\u7565\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u69cb\u5efa\u7a69\u5b9a\u7684\u61c9\u7528\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5229\u7528Redis\u6709\u6548\u9632\u7bc4\u7de9\u5b58\u7a7f\u900f\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u7a69\u5b9a\u6027\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u8207\u5feb\u901f\u97ff\u61c9\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-167205","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167205","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=167205"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167205\/revisions"}],"predecessor-version":[{"id":167206,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167205\/revisions\/167206"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=167205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=167205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=167205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}