{"id":189144,"date":"2024-11-12T05:02:20","date_gmt":"2024-11-11T21:02:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/189144\/"},"modified":"2024-11-12T05:02:21","modified_gmt":"2024-11-11T21:02:21","slug":"%e6%8f%90%e5%8d%87%e7%b3%bb%e7%b5%b1%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96redis%e5%bf%ab%e5%8f%96%e6%9b%b4%e6%96%b0%e6%96%b9%e6%b3%95%ef%bc%88redis%e5%bf%ab%e5%8f%96%e6%9b%b4%e6%96%b0%e6%80%8e%e9%ba%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/189144\/","title":{"rendered":"\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u512a\u5316Redis\u5feb\u53d6\u66f4\u65b0\u65b9\u6cd5\uff08redis\u5feb\u53d6\u66f4\u65b0\u600e\u9ebc\u5beb\uff09"},"content":{"rendered":"

\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u512a\u5316Redis\u5feb\u53d6\u66f4\u65b0\u65b9\u6cd5<\/h1>\n

\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5feb\u53d6\u89e3\u6c7a\u65b9\u6848\uff0c\u5df2\u7d93\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u3002\u7121\u8ad6\u662f\u7528\u65bc\u6578\u64da\u5eab\u67e5\u8a62\u7684\u5feb\u53d6\uff0c\u9084\u662f\u7528\u65bc\u6703\u8a71\u7ba1\u7406\uff0cRedis\u90fd\u80fd\u986f\u8457\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u3002\u7136\u800c\uff0c\u5982\u4f55\u6709\u6548\u5730\u66f4\u65b0Redis\u5feb\u53d6\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5373\u6642\u6027\u548c\u4e00\u81f4\u6027\uff0c\u537b\u662f\u4e00\u500b\u503c\u5f97\u6df1\u5165\u63a2\u8a0e\u7684\u554f\u984c\u3002<\/p>\n

Redis\u5feb\u53d6\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

Redis\u662f\u4e00\u7a2e\u57fa\u65bc\u5167\u5b58\u7684\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u7531\u65bc\u5176\u9ad8\u6548\u7684\u8b80\u53d6\u548c\u5beb\u5165\u6027\u80fd\uff0cRedis\u5e38\u88ab\u7528\u4f5c\u5feb\u53d6\u5c64\uff0c\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u76f4\u63a5\u8a2a\u554f\uff0c\u5f9e\u800c\u63d0\u9ad8\u61c9\u7528\u7684\u97ff\u61c9\u901f\u5ea6\u3002<\/p>\n

\u5feb\u53d6\u66f4\u65b0\u7684\u5fc5\u8981\u6027<\/h2>\n

\u5728\u4f7f\u7528Redis\u4f5c\u70ba\u5feb\u53d6\u6642\uff0c\u6578\u64da\u7684\u66f4\u65b0\u662f\u4e0d\u53ef\u907f\u514d\u7684\u3002\u7576\u5f8c\u7aef\u6578\u64da\u767c\u751f\u8b8a\u5316\u6642\uff0c\u82e5\u4e0d\u53ca\u6642\u66f4\u65b0Redis\u4e2d\u7684\u5feb\u53d6\u6578\u64da\uff0c\u5c07\u53ef\u80fd\u5c0e\u81f4\u61c9\u7528\u8fd4\u56de\u904e\u6642\u6216\u932f\u8aa4\u7684\u4fe1\u606f\u3002\u56e0\u6b64\uff0c\u8a2d\u8a08\u4e00\u500b\u6709\u6548\u7684\u5feb\u53d6\u66f4\u65b0\u7b56\u7565\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n

Redis\u5feb\u53d6\u66f4\u65b0\u7684\u65b9\u6cd5<\/h2>\n

1. \u4e3b\u52d5\u66f4\u65b0<\/h3>\n

\u4e3b\u52d5\u66f4\u65b0\u662f\u6307\u5728\u6578\u64da\u6e90\u767c\u751f\u8b8a\u5316\u6642\uff0c\u7acb\u5373\u66f4\u65b0Redis\u4e2d\u7684\u5feb\u53d6\u3002\u9019\u7a2e\u65b9\u6cd5\u901a\u5e38\u5728\u6578\u64da\u8b8a\u66f4\u7684\u64cd\u4f5c\u4e2d\u9032\u884c\uff0c\u4f8b\u5982\u5728\u6578\u64da\u5eab\u4e2d\u57f7\u884c\u63d2\u5165\u3001\u66f4\u65b0\u6216\u522a\u9664\u64cd\u4f5c\u6642\uff0c\u540c\u6642\u66f4\u65b0Redis\u5feb\u53d6\u3002<\/p>\n

\n# \u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u7528\u6236\u8cc7\u6599\u7684\u66f4\u65b0\u64cd\u4f5c\ndef update_user_data(user_id, new_data):\n    # \u66f4\u65b0\u6578\u64da\u5eab\n    db.update_user(user_id, new_data)\n    # \u66f4\u65b0Redis\u5feb\u53d6\n    redis.set(f\"user:{user_id}\", new_data)\n<\/code><\/pre>\n
2. \u88ab\u52d5\u66f4\u65b0<\/h3>\n
\u88ab\u52d5\u66f4\u65b0\u5247\u662f\u7576\u61c9\u7528\u9700\u8981\u8b80\u53d6\u5feb\u53d6\u6578\u64da\u6642\uff0c\u6aa2\u67e5\u5feb\u53d6\u662f\u5426\u904e\u671f\u6216\u662f\u5426\u9700\u8981\u66f4\u65b0\u3002\u5982\u679c\u5feb\u53d6\u5df2\u904e\u671f\uff0c\u5247\u5f9e\u6578\u64da\u6e90\u91cd\u65b0\u52a0\u8f09\u6578\u64da\u4e26\u66f4\u65b0\u5feb\u53d6\u3002<\/p>\n
\ndef get_user_data(user_id):\n    # \u5617\u8a66\u5f9eRedis\u5feb\u53d6\u4e2d\u7372\u53d6\u6578\u64da\n    user_data = redis.get(f\"user:{user_id}\")\n    if user_data is None:\n        # \u5982\u679c\u5feb\u53d6\u4e0d\u5b58\u5728\uff0c\u5f9e\u6578\u64da\u5eab\u4e2d\u7372\u53d6\n        user_data = db.get_user(user_id)\n        # \u4e26\u66f4\u65b0\u5feb\u53d6\n        redis.set(f\"user:{user_id}\", user_data)\n    return user_data\n<\/code><\/pre>\n
3. \u5b9a\u6642\u66f4\u65b0<\/h3>\n
\u5b9a\u6642\u66f4\u65b0\u662f\u4e00\u7a2e\u5b9a\u671f\u5237\u65b0\u5feb\u53d6\u7684\u7b56\u7565\uff0c\u9069\u5408\u65bc\u6578\u64da\u8b8a\u5316\u4e0d\u983b\u7e41\u7684\u5834\u666f\u3002\u53ef\u4ee5\u4f7f\u7528\u5b9a\u6642\u4efb\u52d9\u4f86\u5b9a\u671f\u66f4\u65b0Redis\u4e2d\u7684\u5feb\u53d6\u6578\u64da\u3002<\/p>\n
\nimport schedule\nimport time\n\ndef refresh_cache():\n    all_users = db.get_all_users()\n    for user in all_users:\n        redis.set(f\"user:{user.id}\", user.data)\n\n# \u6bcf\u5c0f\u6642\u57f7\u884c\u4e00\u6b21\nschedule.every().hour.do(refresh_cache)\n\nwhile True:\n    schedule.run_pending()\n    time.sleep(1)\n<\/code><\/pre>\n
\u5feb\u53d6\u5931\u6548\u7b56\u7565<\/h2>\n
\u9664\u4e86\u66f4\u65b0\u5feb\u53d6\u5916\uff0c\u8a2d\u8a08\u5408\u7406\u7684\u5feb\u53d6\u5931\u6548\u7b56\u7565\u4e5f\u662f\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u7684\u91cd\u8981\u4e00\u74b0\u3002\u53ef\u4ee5\u6839\u64da\u6578\u64da\u7684\u7279\u6027\u8a2d\u7f6e\u4e0d\u540c\u7684\u904e\u671f\u6642\u9593\uff0c\u6216\u8005\u4f7f\u7528LRU\uff08\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7b97\u6cd5\u4f86\u81ea\u52d5\u6e05\u7406\u4e0d\u518d\u4f7f\u7528\u7684\u5feb\u53d6\u6578\u64da\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u5728\u4f7f\u7528Redis\u4f5c\u70ba\u5feb\u53d6\u89e3\u6c7a\u65b9\u6848\u6642\uff0c\u9078\u64c7\u5408\u9069\u7684\u5feb\u53d6\u66f4\u65b0\u7b56\u7565\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4e3b\u52d5\u66f4\u65b0\u3001\u88ab\u52d5\u66f4\u65b0\u9084\u662f\u5b9a\u6642\u66f4\u65b0\uff0c\u90fd\u9700\u8981\u6839\u64da\u5177\u9ad4\u7684\u696d\u52d9\u9700\u6c42\u4f86\u9032\u884c\u9078\u64c7\u3002\u901a\u904e\u5408\u7406\u7684\u5feb\u53d6\u7ba1\u7406\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\uff0c\u78ba\u4fdd\u7528\u6236\u7372\u5f97\u5373\u6642\u4e14\u6e96\u78ba\u7684\u6578\u64da\u3002<\/p>\n
\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u7684\u8cc7\u8a0a\uff0c\u6216\u5c0b\u627e\u5408\u9069\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u7684Redis\u5feb\u53d6\u66f4\u65b0\u65b9\u6cd5\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u7de8\u5beb\u5feb\u53d6\u66f4\u65b0\u7b56\u7565\u4ee5\u512a\u5316\u61c9\u7528\u6548\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-189144","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189144","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=189144"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189144\/revisions"}],"predecessor-version":[{"id":189145,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189144\/revisions\/189145"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=189144"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=189144"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=189144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}