{"id":202104,"date":"2025-05-10T12:52:04","date_gmt":"2025-05-10T04:52:04","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202104\/"},"modified":"2025-05-10T12:52:04","modified_gmt":"2025-05-10T04:52:04","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8redis%e5%92%8chaskell%e6%9e%84%e5%bb%ba%e9%ab%98%e6%80%a7%e8%83%bd%e7%9a%84%e8%ae%a1%e7%ae%97%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202104\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Redis\u548cHaskell\u6784\u5efa\u9ad8\u6027\u80fd\u7684\u8ba1\u7b97\u5e94\u7528"},"content":{"rendered":"

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

\u5982\u4f55\u4f7f\u7528Redis\u548cHaskell\u6784\u5efa\u9ad8\u6027\u80fd\u7684\u8ba1\u7b97\u5e94\u7528<\/h1>\n

\u5404\u4f4d\u5c0f\u4f19\u4f34\u4eec\uff0c\u5927\u5bb6\u597d\u5440\uff01\u770b\u770b\u4eca\u5929\u6211\u53c8\u7ed9\u5404\u4f4d\u5e26\u6765\u4e86\u4ec0\u4e48\u6587\u7ae0\uff1f\u672c\u6587\u6807\u9898\u662f<\/span>\u300a\u5982\u4f55\u4f7f\u7528Redis\u548cHaskell\u6784\u5efa\u9ad8\u6027\u80fd\u7684\u8ba1\u7b97\u5e94\u7528\u300b<\/span>\uff0c\u5f88\u660e\u663e\u662f\u5173\u4e8e\u6570\u636e\u5e93<\/span>\u7684\u6587\u7ae0\u54c8\u54c8\u54c8\uff0c\u5176\u4e2d\u5185\u5bb9\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\uff0c\u5982\u679c\u80fd\u5e2e\u5230\u4f60\uff0c\u89c9\u5f97\u5f88\u4e0d\u9519\u7684\u8bdd\uff0c\u6b22\u8fce\u5404\u4f4d\u591a\u591a\u70b9\u8bc4\u548c\u5206\u4eab\uff01<\/span><\/p>\n

\u5982\u4f55\u4f7f\u7528Redis\u548cHaskell\u6784\u5efa\u9ad8\u6027\u80fd\u7684\u8ba1\u7b97\u5e94\u7528<\/p>\n

Redis\u662f\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684\u5185\u5b58\u6570\u636e\u5b58\u50a8\u548c\u7f13\u5b58\u6570\u636e\u5e93\uff0c\u800cHaskell\u662f\u4e00\u79cd\u529f\u80fd\u5f3a\u5927\uff0c\u9759\u6001\u7c7b\u578b\u7684\u7f16\u7a0b\u8bed\u8a00\u3002\u7ed3\u5408\u8fd9\u4e24\u4e2a\u5de5\u5177\uff0c\u6211\u4eec\u53ef\u4ee5\u6784\u5efa\u51fa\u9ad8\u6027\u80fd\u7684\u8ba1\u7b97\u5e94\u7528\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u7ed3\u5408Redis\u548cHaskell\u6765\u6784\u5efa\u8fd9\u6837\u4e00\u4e2a\u5e94\u7528\uff0c\u5e76\u63d0\u4f9b\u76f8\u5173\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

    \n
  1. \u5b89\u88c5\u548c\u914d\u7f6eRedis<\/li>\n<\/ol>\n

    \u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5b89\u88c5\u548c\u914d\u7f6eRedis\u3002\u53ef\u4ee5\u4eceRedis\u5b98\u65b9\u7f51\u7ad9\u4e0a\u4e0b\u8f7d\u5e76\u5b89\u88c5Redis\uff0c\u7136\u540e\u542f\u52a8Redis\u670d\u52a1\u5668\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cRedis\u670d\u52a1\u5668\u8fd0\u884c\u5728\u672c\u5730\u7684\u7aef\u53e3\u53f76379\u4e0a\u3002<\/p>\n

      \n
    1. \u5b89\u88c5\u548c\u914d\u7f6eHaskell<\/li>\n<\/ol>\n

      \u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u5b89\u88c5\u548c\u914d\u7f6eHaskell\u3002\u53ef\u4ee5\u4eceHaskell\u5b98\u65b9\u7f51\u7ad9\u4e0a\u4e0b\u8f7d\u5e76\u5b89\u88c5Haskell\u5e73\u53f0\u3002\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528GHC\uff08Glasgow Haskell Compiler\uff09\u7f16\u8bd1\u548c\u8fd0\u884cHaskell\u7a0b\u5e8f\u3002<\/p>\n

        \n
      1. \u4f7f\u7528Haskell\u8fde\u63a5\u5230Redis<\/li>\n<\/ol>\n

        \u4e0b\u4e00\u6b65\uff0c\u6211\u4eec\u5c06\u4f7f\u7528Haskell\u8fde\u63a5\u5230Redis\u670d\u52a1\u5668\u3002\u901a\u8fc7\u5728Haskell\u4ee3\u7801\u4e2d\u4f7f\u7528hedis\u5e93\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u5730\u8fdb\u884c\u4e0eRedis\u7684\u901a\u4fe1\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684Haskell\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n

        import Database.Redis\n\nmain :: IO ()\nmain = do\n    conn <- connect defaultConnectInfo\n    runRedis conn $ do\n        set \"key\" \"value\"\n        get \"key\" >>= liftIO . print<\/pre>\n
        \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u4f7f\u7528connect<\/code>\u51fd\u6570\u521b\u5efa\u4e00\u4e2a\u8fde\u63a5\u5230Redis\u670d\u52a1\u5668\u7684\u8fde\u63a5\u5bf9\u8c61\u3002\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528runRedis<\/code>\u51fd\u6570\u6765\u6267\u884c\u4e0eRedis\u7684\u4ea4\u4e92\u3002\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u8bbe\u7f6e\u4e86\u4e00\u4e2a\u540d\u4e3a”key”\u7684\u952e\u503c\u5bf9\uff0c\u5e76\u4f7f\u7528get<\/code>\u51fd\u6570\u83b7\u53d6”key”\u7684\u503c\uff0c\u5e76\u901a\u8fc7liftIO<\/code>\u51fd\u6570\u6253\u5370\u51fa\u6765\u3002<\/p>\n
          \n
        1. \u6784\u5efa\u9ad8\u6027\u80fd\u7684\u8ba1\u7b97\u5e94\u7528<\/li>\n<\/ol>\n
          \u6709\u4e86\u4e0eRedis\u7684\u8fde\u63a5\uff0c\u6211\u4eec\u53ef\u4ee5\u5f00\u59cb\u6784\u5efa\u9ad8\u6027\u80fd\u7684\u8ba1\u7b97\u5e94\u7528\u4e86\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u6211\u4eec\u5c06\u4f7f\u7528Redis\u4f5c\u4e3a\u7f13\u5b58\u6765\u5b58\u50a8\u8ba1\u7b97\u7ed3\u679c\u3002<\/p>\n
          import Database.Redis\nimport Control.Monad (when)\n\ncalculate :: Int -> Int\ncalculate n = n * 2\n\ngetCachedResult :: Redis (Maybe Int)\ngetCachedResult = get \"result\" >>= return . fmap read\n\nstoreResult :: Int -> Redis ()\nstoreResult result = set \"result\" (show result) >> return ()\n\nmain :: IO ()\nmain = do\n    conn <- connect defaultConnectInfo\n    runRedis conn $ do\n        cachedResult <- getCachedResult\n        case cachedResult of\n            Just result -> liftIO $ putStrLn $ \"Cached result: \" ++ show result\n            Nothing -> do\n                let value = 5\n                let result = calculate value\n                liftIO $ putStrLn $ \"Calculated result: \" ++ show result\n                storeResult result<\/pre>\n
          \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2acalculate<\/code>\u51fd\u6570\uff0c\u5b83\u4f1a\u5bf9\u8f93\u5165\u7684\u6574\u6570\u8fdb\u884c\u8ba1\u7b97\u3002\u6211\u4eec\u8fd8\u5b9a\u4e49\u4e86getCachedResult<\/code>\u51fd\u6570\uff0c\u5b83\u4f1a\u4eceRedis\u4e2d\u83b7\u53d6\u7f13\u5b58\u7684\u8ba1\u7b97\u7ed3\u679c\u3002\u5982\u679c\u5b58\u5728\u7f13\u5b58\u7ed3\u679c\uff0c\u6211\u4eec\u5c31\u6253\u5370\u51fa\u6765\uff1b\u5982\u679c\u4e0d\u5b58\u5728\u7f13\u5b58\u7ed3\u679c\uff0c\u5219\u8fdb\u884c\u8ba1\u7b97\u3001\u6253\u5370\u5e76\u5c06\u7ed3\u679c\u5b58\u50a8\u5230Redis\u4e2d\u3002<\/p>\n
          \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u9ad8\u6027\u80fd\u7684\u8ba1\u7b97\u5e94\u7528\u4e2d\u4f7f\u7528Redis\u4f5c\u4e3a\u7f13\u5b58\uff0c\u5927\u5927\u63d0\u9ad8\u8ba1\u7b97\u6548\u7387\u3002<\/p>\n
          \u603b\u7ed3<\/p>\n
          \u672c\u6587\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528Redis\u548cHaskell\u6765\u6784\u5efa\u9ad8\u6027\u80fd\u7684\u8ba1\u7b97\u5e94\u7528\u3002\u901a\u8fc7\u4f7f\u7528Haskell\u63d0\u4f9b\u7684Hedis\u5e93\u6765\u8fde\u63a5\u548c\u4e0eRedis\u4ea4\u4e92\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u5730\u6784\u5efa\u51fa\u6027\u80fd\u4f18\u5f02\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u901a\u8fc7\u7ed3\u5408Redis\u7684\u7f13\u5b58\u529f\u80fd\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u8fdb\u4e00\u6b65\u4f18\u5316\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n
          \u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u4e86\u89e3\u5982\u4f55\u4f7f\u7528Redis\u548cHaskell\u6784\u5efa\u9ad8\u6027\u80fd\u7684\u8ba1\u7b97\u5e94\u7528\u6709\u6240\u5e2e\u52a9\u3002\u795d\u4f60\u7f16\u7a0b\u6109\u5feb\uff01<\/p>\n
          \n
          \n <\/dt>\n
          \n   \u5982\u4f55\u4f7f\u7528MySQL\u7684\u5907\u4efd\u548c\u6062\u590d\u5de5\u5177\u4fdd\u62a4\u6570\u636e\u5b89\u5168\n <\/dd>\n<\/dl>\n
          \n
          \n <\/dt>\n
          \n   \u5982\u4f55\u4f7f\u7528Go\u8bed\u8a00\u8fdb\u884c\u4ee3\u7801\u8d28\u91cf\u4fdd\u8bc1\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
          \u5982\u4f55\u4f7f\u7528Redis\u548cHaskel...<\/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-202104","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202104","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=202104"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202104\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}