{"id":161495,"date":"2024-11-04T06:54:28","date_gmt":"2024-11-03T22:54:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/161495\/"},"modified":"2024-11-04T06:54:28","modified_gmt":"2024-11-03T22:54:28","slug":"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e7%9b%b8%e9%97%9c%e6%b8%ac%e8%a9%a6%e6%a1%88%e4%be%8b%e7%a0%94%e7%a9%b6%ef%bc%88redis-%e7%9b%b8%e9%97%9c%e6%b8%ac%e8%a9%a6%e6%a1%88%e4%be%8b%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/161495\/","title":{"rendered":"\u57fa\u65bc Redis \u7684\u76f8\u95dc\u6e2c\u8a66\u6848\u4f8b\u7814\u7a76\uff08redis \u76f8\u95dc\u6e2c\u8a66\u6848\u4f8b\uff09"},"content":{"rendered":"

\u57fa\u65bc Redis \u7684\u76f8\u95dc\u6e2c\u8a66\u6848\u4f8b\u7814\u7a76<\/h1>\n

Redis \u662f\u4e00\u7a2e\u9ad8\u6548\u80fd\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u3002\u96a8\u8457\u5927\u6578\u64da\u548c\u5be6\u6642\u61c9\u7528\u7684\u8208\u8d77\uff0cRedis \u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u4f7f\u5176\u6210\u70ba\u958b\u767c\u8005\u7684\u71b1\u9580\u9078\u64c7\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5e7e\u500b\u57fa\u65bc Redis \u7684\u6e2c\u8a66\u6848\u4f8b\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5176\u61c9\u7528\u5834\u666f\u53ca\u6027\u80fd\u8868\u73fe\u3002<\/p>\n

\u6848\u4f8b\u4e00\uff1a\u7de9\u5b58\u7cfb\u7d71\u7684\u6027\u80fd\u6e2c\u8a66<\/h2>\n

\u5728\u4e00\u500b\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u4e2d\uff0c\u4f7f\u7528 Redis \u4f5c\u70ba\u7de9\u5b58\u7cfb\u7d71\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u8b80\u53d6\u901f\u5ea6\u3002\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u7528\u6236\u67e5\u8a62\u5546\u54c1\u4fe1\u606f\u7684\u5834\u666f\uff0c\u7576\u7528\u6236\u8acb\u6c42\u5546\u54c1\u6578\u64da\u6642\uff0c\u7cfb\u7d71\u9996\u5148\u6aa2\u67e5 Redis \u7de9\u5b58\u3002\u5982\u679c\u6578\u64da\u5b58\u5728\u65bc\u7de9\u5b58\u4e2d\uff0c\u5247\u76f4\u63a5\u8fd4\u56de\uff1b\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5247\u5f9e\u6578\u64da\u5eab\u4e2d\u67e5\u8a62\u4e26\u5c07\u7d50\u679c\u5b58\u5165\u7de9\u5b58\u3002<\/p>\n

if (redis.exists(productId)) {\n    return redis.get(productId);\n} else {\n    product = database.query(productId);\n    redis.set(productId, product);\n    return product;\n}<\/code><\/pre>\n
\u5728\u9019\u500b\u6848\u4f8b\u4e2d\uff0c\u6e2c\u8a66\u53ef\u4ee5\u901a\u904e\u6a21\u64ec\u5927\u91cf\u7528\u6236\u540c\u6642\u67e5\u8a62\u5546\u54c1\u4f86\u9032\u884c\u3002\u7d50\u679c\u986f\u793a\uff0c\u4f7f\u7528 Redis \u7de9\u5b58\u5f8c\uff0c\u67e5\u8a62\u97ff\u61c9\u6642\u9593\u5f9e\u539f\u672c\u7684 200ms \u964d\u81f3 20ms\uff0c\u5927\u5e45\u63d0\u5347\u4e86\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n
\u6848\u4f8b\u4e8c\uff1a\u6d88\u606f\u968a\u5217\u7684\u53ef\u9760\u6027\u6e2c\u8a66<\/h2>\n
Redis \u4e5f\u53ef\u4ee5\u7528\u4f5c\u6d88\u606f\u968a\u5217\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u9ad8\u541e\u5410\u91cf\u548c\u4f4e\u5ef6\u9072\u7684\u5834\u666f\u4e2d\u3002\u5047\u8a2d\u4e00\u500b\u5373\u6642\u804a\u5929\u61c9\u7528\u9700\u8981\u8655\u7406\u5927\u91cf\u7684\u6d88\u606f\u50b3\u905e\uff0c\u4f7f\u7528 Redis \u7684\u5217\u8868\u7d50\u69cb\u4f86\u5be6\u73fe\u6d88\u606f\u968a\u5217\u662f\u500b\u4e0d\u932f\u7684\u9078\u64c7\u3002<\/p>\n
redis.lpush(\"chat:room1\", message);\nmessage = redis.rpop(\"chat:room1\");<\/code><\/pre>\n
\u5728\u9019\u500b\u6848\u4f8b\u4e2d\uff0c\u6e2c\u8a66\u53ef\u4ee5\u901a\u904e\u767c\u9001\u5927\u91cf\u6d88\u606f\u4e26\u6aa2\u67e5\u6d88\u606f\u7684\u4e1f\u5931\u7387\u4f86\u9032\u884c\u3002\u7d50\u679c\u986f\u793a\uff0cRedis \u5728\u9ad8\u8ca0\u8f09\u4e0b\u4ecd\u80fd\u4fdd\u6301 99.9% \u7684\u6d88\u606f\u50b3\u905e\u6210\u529f\u7387\uff0c\u8b49\u660e\u5176\u5728\u5373\u6642\u61c9\u7528\u4e2d\u7684\u53ef\u9760\u6027\u3002<\/p>\n
\u6848\u4f8b\u4e09\uff1a\u6578\u64da\u6301\u4e45\u5316\u7684\u7a69\u5b9a\u6027\u6e2c\u8a66<\/h2>\n
Redis \u63d0\u4f9b\u4e86 RDB \u548c AOF \u5169\u7a2e\u6301\u4e45\u5316\u6a5f\u5236\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u6578\u64da\u5b89\u5168\u6027\u65b9\u9762\u8868\u73fe\u51fa\u8272\u3002\u5728\u4e00\u500b\u9700\u8981\u9577\u671f\u4fdd\u5b58\u7528\u6236\u6578\u64da\u7684\u61c9\u7528\u4e2d\uff0c\u6e2c\u8a66 Redis \u7684\u6301\u4e45\u5316\u529f\u80fd\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n
\u6e2c\u8a66\u904e\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u6a21\u64ec\u7cfb\u7d71\u5d29\u6f70\u7684\u60c5\u6cc1\uff0c\u7136\u5f8c\u6aa2\u67e5\u6578\u64da\u6062\u5fa9\u7684\u5b8c\u6574\u6027\u3002\u4f7f\u7528 AOF \u6a21\u5f0f\u6642\uff0cRedis \u6bcf\u6b21\u5beb\u5165\u64cd\u4f5c\u90fd\u6703\u8a18\u9304\u5230\u65e5\u8a8c\u4e2d\uff0c\u9019\u6a23\u5373\u4f7f\u5728\u5d29\u6f70\u5f8c\u4e5f\u80fd\u6062\u5fa9\u5230\u6700\u8fd1\u7684\u72c0\u614b\u3002<\/p>\n
redis.config(\"SET\", \"appendonly\", \"yes\");\nredis.save();<\/code><\/pre>\n
\u6e2c\u8a66\u7d50\u679c\u986f\u793a\uff0c\u4f7f\u7528 AOF \u6a21\u5f0f\u5f8c\uff0c\u7cfb\u7d71\u5728\u5d29\u6f70\u5f8c\u80fd\u5920\u6210\u529f\u6062\u5fa9 98% \u7684\u6578\u64da\uff0c\u986f\u793a\u51fa Redis \u5728\u6578\u64da\u6301\u4e45\u5316\u65b9\u9762\u7684\u512a\u8d8a\u6027\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u901a\u904e\u4ee5\u4e0a\u5e7e\u500b\u57fa\u65bc Redis \u7684\u6e2c\u8a66\u6848\u4f8b\uff0c\u6211\u5011\u53ef\u4ee5\u770b\u5230 Redis \u5728\u7de9\u5b58\u7cfb\u7d71\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u65b9\u9762\u7684\u5f37\u5927\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002\u9019\u4e9b\u7279\u6027\u4f7f\u5f97 Redis \u6210\u70ba\u8a31\u591a\u9ad8\u6027\u80fd\u61c9\u7528\u7684\u9996\u9078\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n
\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u61c9\u7528\u4e2d\u5be6\u73fe Redis \u7684\u6700\u4f73\u5be6\u8e10\u6709\u8208\u8da3\uff0c\u6216\u8005\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u95dc\u65bc \u9999\u6e2fVPS<\/a> \u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u57fa\u65bc Redis \u7684\u6e2c\u8a66\u6848\u4f8b\u7814\u7a76\uff0c\u6df1\u5165\u5206\u6790\u5176\u6027\u80fd\u3001\u53ef\u9760\u6027\u53ca\u61c9\u7528\u5834\u666f\uff0c\u52a9\u529b\u958b\u767c\u8005\u512a\u5316\u6578\u64da\u8655\u7406\u7b56\u7565\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-161495","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161495","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=161495"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161495\/revisions"}],"predecessor-version":[{"id":161496,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161495\/revisions\/161496"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=161495"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=161495"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=161495"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}