{"id":201989,"date":"2025-05-10T11:56:53","date_gmt":"2025-05-10T03:56:53","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201989\/"},"modified":"2025-05-10T11:56:53","modified_gmt":"2025-05-10T03:56:53","slug":"redis%e5%9c%a8javascript%e5%bc%80%e5%8f%91%e4%b8%ad%e7%9a%84%e5%ba%94%e7%94%a8%ef%bc%9a%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e6%95%b0%e6%8d%ae%e7%bc%93%e5%ad%98","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201989\/","title":{"rendered":"Redis\u5728JavaScript\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\uff1a\u5982\u4f55\u5b9e\u73b0\u6570\u636e\u7f13\u5b58"},"content":{"rendered":"

<\/b> <\/p>\n

Redis\u5728JavaScript\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\uff1a\u5982\u4f55\u5b9e\u73b0\u6570\u636e\u7f13\u5b58<\/h1>\n

\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60\u6570\u636e\u5e93<\/span>\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\u300aRedis\u5728JavaScript\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\uff1a\u5982\u4f55\u5b9e\u73b0\u6570\u636e\u7f13\u5b58\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<\/span>\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n

Redis\u5728JavaScript\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\uff1a\u5982\u4f55\u5b9e\u73b0\u6570\u636e\u7f13\u5b58<\/p>\n

\u5f15\u8a00\uff1a
\u5728JavaScript\u5f00\u53d1\u4e2d\uff0c\u6570\u636e\u7f13\u5b58\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u6982\u5ff5\u3002\u5b83\u80fd\u591f\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u54cd\u5e94\u901f\u5ea6\uff0c\u51cf\u5c11\u5bf9\u670d\u52a1\u5668\u7684\u8bf7\u6c42\u6b21\u6570\u3002Redis\uff08Remote Dictionary Server\uff09\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5185\u5b58\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u7528\u4e8e\u9ad8\u6027\u80fd\u5e94\u7528\u7684\u6570\u636e\u7f13\u5b58\u3002\u672c\u6587\u5c06\u4ecb\u7ecdRedis\u5728JavaScript\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\uff0c\u5e76\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u5c55\u793a\u5982\u4f55\u5b9e\u73b0\u6570\u636e\u7f13\u5b58\u3002<\/p>\n

\u5185\u5bb9\u6b63\u6587\uff1a<\/p>\n

Redis\u662f\u4e00\u4e2a\u57fa\u4e8e\u5185\u5b58\u7684\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u4ee5\u63d0\u9ad8\u8bbf\u95ee\u901f\u5ea6\u3002\u5b83\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6570\u636e\u7ed3\u6784\u548c\u547d\u4ee4\uff0c\u53ef\u4ee5\u5728JavaScript\u5f00\u53d1\u4e2d\u5b9e\u73b0\u6570\u636e\u7f13\u5b58\u3002<\/p>\n

\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5728JavaScript\u9879\u76ee\u4e2d\u5f15\u5165Redis\u7684\u5ba2\u6237\u7aef\u5e93\u3002\u4e00\u4e2a\u5e38\u7528\u7684Redis\u5ba2\u6237\u7aef\u5e93\u662fioredis\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684API\u6765\u4e0eRedis\u8fdb\u884c\u4ea4\u4e92\u3002\u53ef\u4ee5\u901a\u8fc7npm\u5b89\u88c5ioredis\u5e93\uff1a<\/p>\n

npm install ioredis<\/pre>\n
\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u5728JavaScript\u6587\u4ef6\u4e2d\u5f15\u5165ioredis\u5e93\uff1a<\/p>\n
const Redis = require('ioredis');\nconst redis = new Redis();<\/pre>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Redis\u8fdb\u884c\u6570\u636e\u7f13\u5b58\u3002<\/p>\n
    \n
  1. \u5355\u4e2a\u6570\u636e\u7f13\u5b58
    \u6211\u4eec\u53ef\u4ee5\u5c06\u4e00\u4e2a\u6570\u636e\u9879\u5b58\u50a8\u5728Redis\u4e2d\uff0c\u5e76\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff0c\u4ece\u800c\u5b9e\u73b0\u6570\u636e\u7684\u7f13\u5b58\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
    async function getDataFromCache(key) {\n  const cachedData = await redis.get(key);\n  if (cachedData) {\n    console.log('\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u6570\u636e');\n    return JSON.parse(cachedData);\n  }\n\n  console.log('\u4ece\u6570\u636e\u5e93\u83b7\u53d6\u6570\u636e');\n  const dataFromDB = await fetchDataFromDB(key);\n  redis.set(key, JSON.stringify(dataFromDB), 'ex', 60);\n  return dataFromDB;\n}\n\nasync function fetchDataFromDB(key) {\n  \/\/ \u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\u6570\u636e\u7684\u903b\u8f91\n}\n\n\/\/ \u4f7f\u7528\u65b9\u5f0f:\nconst data = await getDataFromCache('exampleKey');<\/pre>\n
    \u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5148\u68c0\u67e5Redis\u4e2d\u662f\u5426\u5b58\u5728\u6307\u5b9a\u7684key\uff0c\u5982\u679c\u5b58\u5728\u5219\u76f4\u63a5\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u6570\u636e\u5e76\u8fd4\u56de\uff1b\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5219\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\u6570\u636e\u5e76\u5b58\u50a8\u5230Redis\u4e2d\uff0c\u540c\u65f6\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u3002\u8fd9\u6837\uff0c\u4e0b\u6b21\u518d\u8bf7\u6c42\u76f8\u540c\u7684key\u65f6\uff0c\u5c31\u4f1a\u76f4\u63a5\u4eceRedis\u7f13\u5b58\u4e2d\u83b7\u53d6\u6570\u636e\uff0c\u800c\u65e0\u9700\u518d\u67e5\u8be2\u6570\u636e\u5e93\u3002<\/p>\n
      \n
    1. \u591a\u4e2a\u6570\u636e\u7f13\u5b58
      \u9664\u4e86\u5355\u4e2a\u6570\u636e\u7684\u7f13\u5b58\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u5c06\u591a\u4e2a\u6570\u636e\u9879\u5b58\u50a8\u5230Redis\u4e2d\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
      async function getDataListFromCache(keys) {\n  const cachedData = await redis.mget(keys);\n\n  const nonCachedDataKeys = [];\n  const dataMap = {};\n  for (let i = 0; i < keys.length; i++) {\n    const key = keys[i];\n    const cachedDatum = cachedData[i];\n    if (cachedDatum) {\n      dataMap[key] = JSON.parse(cachedDatum);\n    } else {\n      nonCachedDataKeys.push(key);\n    }\n  }\n\n  if (nonCachedDataKeys.length > 0) {\n    console.log('\u4ece\u6570\u636e\u5e93\u83b7\u53d6\u6570\u636e');\n    const dataFromDB = await fetchDataListFromDB(nonCachedDataKeys);\n    for (const data of dataFromDB) {\n      const key = data.key;\n      redis.set(key, JSON.stringify(data), 'ex', 60);\n      dataMap[key] = data;\n    }\n  }\n\n  return keys.map(key => dataMap[key]);\n}\n\nasync function fetchDataListFromDB(keys) {\n  \/\/ \u4ece\u6570\u636e\u5e93\u4e2d\u6279\u91cf\u83b7\u53d6\u6570\u636e\u7684\u903b\u8f91\n}\n\n\/\/ \u4f7f\u7528\u65b9\u5f0f:\nconst dataList = await getDataListFromCache(['key1', 'key2', 'key3']);<\/pre>\n
      \u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u901a\u8fc7mget<\/code>\u547d\u4ee4\u4e00\u6b21\u6027\u83b7\u53d6\u591a\u4e2akey\u5bf9\u5e94\u7684\u6570\u636e\u3002\u7136\u540e\uff0c\u904d\u5386\u83b7\u53d6\u5230\u7684\u6570\u636e\uff0c\u5c06\u7f13\u5b58\u547d\u4e2d\uff08\u5b58\u5728\uff09\u7684\u6570\u636e\u89e3\u6790\u6210\u5bf9\u8c61\uff0c\u540c\u65f6\u8bb0\u5f55\u7f13\u5b58\u672a\u547d\u4e2d\uff08\u4e0d\u5b58\u5728\uff09\u7684key\u3002\u63a5\u7740\uff0c\u4ece\u6570\u636e\u5e93\u4e2d\u6279\u91cf\u83b7\u53d6\u7f13\u5b58\u672a\u547d\u4e2d\u7684\u6570\u636e\uff0c\u5e76\u5b58\u50a8\u5230Redis\u4e2d\u3002\u6700\u540e\uff0c\u8fd4\u56de\u8bf7\u6c42\u7684\u6240\u6709\u6570\u636e\u3002<\/p>\n
      \u7ed3\u8bba\uff1a<\/p>\n
      \u672c\u6587\u4ecb\u7ecd\u4e86Redis\u5728JavaScript\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\uff0c\u5e76\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5b9e\u73b0\u6570\u636e\u7f13\u5b58\u3002\u901a\u8fc7\u4f7f\u7528Redis\u8fdb\u884c\u6570\u636e\u7f13\u5b58\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u54cd\u5e94\u901f\u5ea6\u3002\u540c\u65f6\uff0cRedis\u4f5c\u4e3a\u4e00\u4e2a\u5f3a\u5927\u7684\u5185\u5b58\u6570\u636e\u5e93\uff0c\u8fd8\u53ef\u4ee5\u5b9e\u73b0\u66f4\u591a\u9ad8\u7ea7\u529f\u80fd\uff0c\u5982\u53d1\u5e03\/\u8ba2\u9605\u3001\u6392\u884c\u699c\u7b49\u3002\u56e0\u6b64\uff0c\u5728JavaScript\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u5e94\u8be5\u5584\u4e8e\u5229\u7528Redis\u6765\u4f18\u5316\u548c\u63d0\u5347\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n
      \u53c2\u8003\u6587\u732e\uff1a<\/p>\n
        \n
      1. ioredis\u5b98\u65b9\u6587\u6863\uff1ahttps:\/\/github.com\/luin\/ioredis<\/li>\n<\/ol>\n
        \n
        \n <\/dt>\n
        \n   \u5229\u7528Python\u548cRedis\u5b9e\u73b0\u5206\u5e03\u5f0f\u4efb\u52a1\u8c03\u5ea6\uff1a\u5982\u4f55\u5b9e\u73b0\u5b9a\u65f6\u4efb\u52a1\n <\/dd>\n<\/dl>\n
        \n
        \n <\/dt>\n
        \n   \u5982\u4f55\u5229\u7528Redis\u548cJavaScript\u5b9e\u73b0\u5206\u5e03\u5f0f\u8ba2\u9605\u53d1\u5e03\u529f\u80fd\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
        Redis\u5728JavaScript...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201989","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201989","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201989"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201989\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201989"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201989"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}