{"id":161823,"date":"2024-11-04T09:38:24","date_gmt":"2024-11-04T01:38:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/161823\/"},"modified":"2024-11-04T09:38:25","modified_gmt":"2024-11-04T01:38:25","slug":"%e6%a5%b5%e9%80%9f%e9%ab%94%e9%a9%97%e5%b0%87%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%e5%ad%98%e5%84%b2%e5%9c%a8-redis-%e4%b8%ad%ef%bc%88%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%e6%94%be-redis%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/161823\/","title":{"rendered":"\u6975\u901f\u9ad4\u9a57\u5c07\u5206\u9801\u67e5\u8a62\u5b58\u5132\u5728 Redis \u4e2d\uff08\u5206\u9801\u67e5\u8a62\u653e redis\uff09"},"content":{"rendered":"<h1 id=\"%e6%a5%b5%e9%80%9f%e9%ab%94%e9%a9%97%e5%b0%87%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%e5%ad%98%e5%84%b2%e5%9c%a8-redis-%e4%b8%ad%ef%bc%88%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%e6%94%be-redis%ef%bc%89-nYTswcYUzv\">\u6975\u901f\u9ad4\u9a57\u5c07\u5206\u9801\u67e5\u8a62\u5b58\u5132\u5728 Redis \u4e2d\uff08\u5206\u9801\u67e5\u8a62\u653e redis\uff09<\/h1>\n<p>\u5728\u73fe\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u6578\u64da\u7684\u5feb\u901f\u5b58\u53d6\u8207\u8655\u7406\u662f\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u7684\u95dc\u9375\u56e0\u7d20\u4e4b\u4e00\u3002\u5c24\u5176\u662f\u5728\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u60c5\u6cc1\u4e0b\uff0c\u5982\u4f55\u6709\u6548\u5730\u9032\u884c\u5206\u9801\u67e5\u8a62\u6210\u70ba\u4e86\u958b\u767c\u8005\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u6975\u4f73\u7684\u6027\u80fd\uff0c\u7279\u5225\u9069\u5408\u7528\u65bc\u5b58\u5132\u548c\u67e5\u8a62\u5206\u9801\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5c07\u5206\u9801\u67e5\u8a62\u5b58\u5132\u5728 Redis \u4e2d\uff0c\u4ee5\u5be6\u73fe\u6975\u901f\u7684\u6578\u64da\u8a2a\u554f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%ef%bc%9f-nYTswcYUzv\">\u4ec0\u9ebc\u662f\u5206\u9801\u67e5\u8a62\uff1f<\/h2>\n<p>\u5206\u9801\u67e5\u8a62\u662f\u6307\u5c07\u67e5\u8a62\u7d50\u679c\u5206\u6210\u591a\u500b\u9801\u9762\u9032\u884c\u986f\u793a\u7684\u6280\u8853\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u4e00\u6b21\u6027\u52a0\u8f09\u904e\u591a\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u61c9\u7528\u7684\u97ff\u61c9\u901f\u5ea6\u548c\u7528\u6236\u9ad4\u9a57\u3002\u901a\u5e38\uff0c\u5206\u9801\u67e5\u8a62\u6703\u4f7f\u7528 LIMIT \u548c OFFSET \u4f86\u63a7\u5236\u67e5\u8a62\u7684\u6578\u64da\u7bc4\u570d\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u67e5\u8a62\u7b2c 2 \u9801\u7684 10 \u689d\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\uff1a<\/p>\n<pre><code>SELECT * FROM users LIMIT 10 OFFSET 10;<\/code><\/pre>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87-redis%ef%bc%9f-nYTswcYUzv\">\u70ba\u4ec0\u9ebc\u9078\u64c7 Redis\uff1f<\/h2>\n<p>Redis \u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u5177\u6709\u4ee5\u4e0b\u5e7e\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u7684\u6578\u64da\u5b58\u53d6\uff1a<\/strong>Redis \u5c07\u6578\u64da\u5b58\u5132\u5728\u5167\u5b58\u4e2d\uff0c\u8b80\u53d6\u901f\u5ea6\u6975\u5feb\uff0c\u9069\u5408\u9700\u8981\u5feb\u901f\u97ff\u61c9\u7684\u61c9\u7528\u3002<\/li>\n<li><strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff1a<\/strong>Redis \u4e0d\u50c5\u652f\u6301\u5b57\u7b26\u4e32\uff0c\u9084\u652f\u6301\u5217\u8868\u3001\u96c6\u5408\u3001\u54c8\u5e0c\u7b49\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9748\u6d3b\u6027\u9ad8\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\u9078\u9805\uff1a<\/strong>Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u6301\u4e45\u5316\u6a5f\u5236\uff0c\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u65b9\u6848\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%b0%87%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%e5%ad%98%e5%84%b2%e5%9c%a8-redis-%e4%b8%ad-nYTswcYUzv\">\u5982\u4f55\u5c07\u5206\u9801\u67e5\u8a62\u5b58\u5132\u5728 Redis \u4e2d<\/h2>\n<p>\u5c07\u5206\u9801\u67e5\u8a62\u7d50\u679c\u5b58\u5132\u5728 Redis \u4e2d\u7684\u57fa\u672c\u601d\u8def\u662f\uff1a\u5728\u7b2c\u4e00\u6b21\u67e5\u8a62\u6642\uff0c\u5c07\u7d50\u679c\u5b58\u5165 Redis\uff0c\u4e26\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\u3002\u4e4b\u5f8c\u7684\u67e5\u8a62\u5c07\u76f4\u63a5\u5f9e Redis \u4e2d\u7372\u53d6\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%80%ef%bc%9a%e5%ae%89%e8%a3%9d-redis-nYTswcYUzv\">\u6b65\u9a5f\u4e00\uff1a\u5b89\u88dd Redis<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u4fdd\u4f60\u7684\u74b0\u5883\u4e2d\u5df2\u7d93\u5b89\u88dd\u4e86 Redis\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88dd\uff1a<\/p>\n<pre><code>sudo apt-get install redis-server<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e4%ba%8c%ef%bc%9a%e9%80%a3%e6%8e%a5-redis-nYTswcYUzv\">\u6b65\u9a5f\u4e8c\uff1a\u9023\u63a5 Redis<\/h3>\n<p>\u5728\u4f60\u7684\u61c9\u7528\u4e2d\uff0c\u4f7f\u7528\u76f8\u61c9\u7684 Redis \u5ba2\u6236\u7aef\u5eab\u4f86\u9023\u63a5 Redis\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 Python \u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230 Redis\nr = redis.Redis(host='localhost', port=6379, db=0)<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%89%ef%bc%9a%e5%ad%98%e5%84%b2%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%e7%b5%90%e6%9e%9c-nYTswcYUzv\">\u6b65\u9a5f\u4e09\uff1a\u5b58\u5132\u5206\u9801\u67e5\u8a62\u7d50\u679c<\/h3>\n<p>\u7576\u7528\u6236\u8acb\u6c42\u67d0\u4e00\u9801\u7684\u6578\u64da\u6642\uff0c\u9996\u5148\u6aa2\u67e5 Redis \u4e2d\u662f\u5426\u5df2\u7d93\u5b58\u5728\u8a72\u9801\u7684\u6578\u64da\u3002\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5247\u57f7\u884c\u67e5\u8a62\u4e26\u5c07\u7d50\u679c\u5b58\u5165 Redis\uff1a<\/p>\n<pre><code>def get_paginated_data(page, page_size):\n    redis_key = f'users_page_{page}'\n    # \u6aa2\u67e5 Redis \u4e2d\u662f\u5426\u5b58\u5728\u6578\u64da\n    if r.exists(redis_key):\n        return r.lrange(redis_key, 0, -1)  # \u5f9e Redis \u7372\u53d6\u6578\u64da\n    else:\n        # \u57f7\u884c SQL \u67e5\u8a62\n        data = execute_sql_query(page, page_size)\n        # \u5c07\u7d50\u679c\u5b58\u5165 Redis\n        r.rpush(redis_key, *data)\n        r.expire(redis_key, 3600)  # \u8a2d\u7f6e\u904e\u671f\u6642\u9593\u70ba 1 \u5c0f\u6642\n        return data<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e5%9b%9b%ef%bc%9a%e8%99%95%e7%90%86%e9%81%8e%e6%9c%9f%e6%95%b8%e6%93%9a-nYTswcYUzv\">\u6b65\u9a5f\u56db\uff1a\u8655\u7406\u904e\u671f\u6578\u64da<\/h3>\n<p>\u7531\u65bc\u6578\u64da\u53ef\u80fd\u6703\u96a8\u6642\u9593\u8b8a\u5316\uff0c\u56e0\u6b64\u9700\u8981\u5b9a\u671f\u66f4\u65b0 Redis \u4e2d\u7684\u6578\u64da\u3002\u53ef\u4ee5\u8a2d\u7f6e\u4e00\u500b\u5b9a\u6642\u4efb\u52d9\uff0c\u5b9a\u671f\u6e05\u9664\u904e\u671f\u7684\u6578\u64da\u6216\u91cd\u65b0\u52a0\u8f09\u6700\u65b0\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-nYTswcYUzv\">\u7d50\u8ad6<\/h2>\n<p>\u5c07\u5206\u9801\u67e5\u8a62\u7d50\u679c\u5b58\u5132\u5728 Redis \u4e2d\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u7684\u8a2a\u554f\u901f\u5ea6\u548c\u7528\u6236\u9ad4\u9a57\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5145\u5206\u5229\u7528 Redis \u7684\u9ad8\u6027\u80fd\u7279\u6027\uff0c\u70ba\u7528\u6236\u63d0\u4f9b\u66f4\u6d41\u66a2\u7684\u64cd\u4f5c\u9ad4\u9a57\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0cRedis \u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-nYTswcYUzv\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u4f7f\u7528 Redis \u4f86\u5b58\u5132\u5206\u9801\u67e5\u8a62\u7d50\u679c\uff0c\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6027\u80fd\uff0c\u9084\u80fd\u6539\u5584\u7528\u6236\u9ad4\u9a57\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\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u90e8\u7f72\u548c\u7ba1\u7406\u60a8\u7684\u61c9\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6975\u901f\u9ad4\u9a57\u900f\u904e\u5c07\u5206\u9801\u67e5\u8a62\u5b58\u5132\u5728 Redis \u4e2d\uff0c\u63d0\u5347\u6578\u64da\u5b58\u53d6\u6548\u7387\uff0c\u5be6\u73fe\u5feb\u901f\u97ff\u61c9\u8207\u6d41\u66a2\u7528\u6236\u9ad4\u9a57\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-161823","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161823","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=161823"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161823\/revisions"}],"predecessor-version":[{"id":161824,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161823\/revisions\/161824"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=161823"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=161823"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=161823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}