{"id":202193,"date":"2025-05-10T13:00:43","date_gmt":"2025-05-10T05:00:43","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202193\/"},"modified":"2025-05-10T13:00:43","modified_gmt":"2025-05-10T05:00:43","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8redis%e5%92%8celixir%e5%bc%80%e5%8f%91%e5%88%86%e5%b8%83%e5%bc%8f%e9%94%81%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202193\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Redis\u548cElixir\u5f00\u53d1\u5206\u5e03\u5f0f\u9501\u529f\u80fd"},"content":{"rendered":"

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

\u5982\u4f55\u4f7f\u7528Redis\u548cElixir\u5f00\u53d1\u5206\u5e03\u5f0f\u9501\u529f\u80fd<\/h1>\n

\u6570\u636e\u5e93<\/span>\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u300a\u5982\u4f55\u4f7f\u7528Redis\u548cElixir\u5f00\u53d1\u5206\u5e03\u5f0f\u9501\u529f\u80fd\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01<\/p>\n

\u5982\u4f55\u4f7f\u7528Redis\u548cElixir\u5f00\u53d1\u5206\u5e03\u5f0f\u9501\u529f\u80fd<\/p>\n

\u5206\u5e03\u5f0f\u9501\u662f\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u5e38\u89c1\u7684\u4e00\u79cd\u540c\u6b65\u673a\u5236\uff0c\u7528\u4e8e\u4fdd\u8bc1\u5728\u591a\u4e2a\u7a0b\u5e8f\u6216\u8fdb\u7a0b\u540c\u65f6\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u65f6\u7684\u4e92\u65a5\u6027\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528Redis\u548cElixir\u5f00\u53d1\u5206\u5e03\u5f0f\u9501\u529f\u80fd\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002\u5728\u5f00\u59cb\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u4e86\u89e3\u4e00\u4e0bRedis\u548cElixir\u7684\u57fa\u672c\u6982\u5ff5\u548c\u7528\u6cd5\u3002<\/p>\n

Redis\u662f\u4e00\u4e2a\u9ad8\u6027\u80fd\u7684\u952e\u503c\u5bf9\u5b58\u50a8\u7cfb\u7edf\uff0c\u5e38\u7528\u4e8e\u7f13\u5b58\u3001\u961f\u5217\u7b49\u573a\u666f\u3002\u5b83\u652f\u6301\u591a\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u96c6\u5408\u3001\u54c8\u5e0c\u8868\u7b49\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u547d\u4ee4\u548c\u529f\u80fd\u3002Elixir\u662f\u4e00\u79cd\u57fa\u4e8eErlang\u865a\u62df\u673a\u7684\u51fd\u6570\u5f0f\u7f16\u7a0b\u8bed\u8a00\uff0c\u5177\u5907\u9ad8\u5e76\u53d1\u6027\u548c\u5bb9\u9519\u6027\u7b49\u7279\u70b9\uff0c\u9002\u5408\u4e8e\u6784\u5efa\u53ef\u6269\u5c55\u7684\u5206\u5e03\u5f0f\u7cfb\u7edf\u3002<\/p>\n

\u4e0b\u9762\u6211\u4eec\u5c06\u9010\u6b65\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528Redis\u548cElixir\u6765\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u529f\u80fd\u3002<\/p>\n

\u7b2c\u4e00\u6b65\uff1a\u5b89\u88c5Redis\u548cElixir<\/p>\n

\u9996\u5148\u9700\u8981\u5b89\u88c5Redis\u548cElixir\u3002\u4f60\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u64cd\u4f5c\u7cfb\u7edf\u9009\u62e9\u9002\u5408\u7684\u5b89\u88c5\u65b9\u5f0f\uff0c\u8fd9\u91cc\u4e0d\u518d\u8d58\u8ff0\u3002<\/p>\n

\u7b2c\u4e8c\u6b65\uff1a\u521b\u5efaElixir\u9879\u76ee<\/p>\n

\u4f7f\u7528Elixir\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u9879\u76ee\uff0c\u53ef\u4ee5\u4f7f\u7528Mix\u5de5\u5177\u6765\u5b8c\u6210\u3002\u6253\u5f00\u547d\u4ee4\u884c\u7ec8\u7aef\uff0c\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n

$ mix new distributed_lock --sup\n$ cd distributed_lock<\/pre>\n
\u4e0a\u8ff0\u547d\u4ee4\u5c06\u521b\u5efa\u4e00\u4e2a\u540d\u4e3adistributed_lock<\/code>\u7684\u9879\u76ee\uff0c\u5e76\u751f\u6210\u76f8\u5e94\u7684\u76ee\u5f55\u7ed3\u6784\u3002<\/p>\n
\u7b2c\u4e09\u6b65\uff1a\u6dfb\u52a0Redis\u4f9d\u8d56<\/p>\n
\u5728mix.exs<\/code>\u6587\u4ef6\u4e2d\u6dfb\u52a0Redis\u4f9d\u8d56\uff0c\u5177\u4f53\u5982\u4e0b\uff1a<\/p>\n
defp deps do\n  [\n    {:redix, \"~> 0.15\"}\n  ]\nend<\/pre>\n
\u7136\u540e\u6267\u884cmix deps.get<\/code>\u547d\u4ee4\uff0c\u4e0b\u8f7d\u4f9d\u8d56\u5305\u3002<\/p>\n
\u7b2c\u56db\u6b65\uff1a\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u4ee3\u7801<\/p>\n
\u5728lib<\/code>\u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6a21\u5757\u6587\u4ef6lock.ex<\/code>\uff0c\u5e76\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
defmodule DistributedLock.Lock do\n  use Redix\n  \n  def lock(key, ttl) do\n    case redix_command(0, [\"SET\", key, \"locked\", \"NX\", \"PX\", ttl]) do\n      {:ok, \"OK\"} -> :ok\n      {:error, _} -> {:error, \"Failed to acquire lock\"}\n    end\n  end\n  \n  def unlock(key) do\n    redix_command(0, [\"DEL\", key])\n  end\nend<\/pre>\n
\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86Redix\u6a21\u5757\u6765\u4e0eRedis\u8fdb\u884c\u4ea4\u4e92\u3002lock<\/code>\u51fd\u6570\u7528\u4e8e\u83b7\u53d6\u5206\u5e03\u5f0f\u9501\uff0c\u5b83\u5411Redis\u53d1\u9001SET<\/code>\u547d\u4ee4\uff0c\u4f7f\u7528NX\u9009\u9879\u8bbe\u7f6e\u952e\u503c\u5bf9\uff0c\u786e\u4fdd\u53ea\u6709\u4e00\u4e2a\u8fdb\u7a0b\u80fd\u591f\u83b7\u5f97\u9501\u3002unlock<\/code>\u51fd\u6570\u7528\u4e8e\u91ca\u653e\u5206\u5e03\u5f0f\u9501\uff0c\u5b83\u5411Redis\u53d1\u9001DEL<\/code>\u547d\u4ee4\uff0c\u5220\u9664\u952e\u503c\u5bf9\u3002<\/p>\n
\u7b2c\u4e94\u6b65\uff1a\u6d4b\u8bd5\u5206\u5e03\u5f0f\u9501\u529f\u80fd<\/p>\n
\u5728lib<\/code>\u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6a21\u5757\u6587\u4ef6main.ex<\/code>\uff0c\u5e76\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
defmodule DistributedLock.Main do\n  def run do\n    lock_key = \"my_lock\"\n    lock_ttl = 5000\n  \n    case DistributedLock.Lock.lock(lock_key, lock_ttl) do\n      :ok -> IO.puts \"Lock acquired\"\n      {:error, reason} -> IO.puts \"Failed to acquire lock: #{reason}\"\n    end\n  \n    :timer.sleep(1000)\n  \n    DistributedLock.Lock.unlock(lock_key)\n  \n    IO.puts \"Lock released\"\n  end\nend\n\nDistributedLock.Main.run()<\/pre>\n
\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u8c03\u7528\u4e86DistributedLock.Lock.lock<\/code>\u51fd\u6570\u6765\u83b7\u53d6\u5206\u5e03\u5f0f\u9501\uff0c\u5e76\u6839\u636e\u8fd4\u56de\u503c\u5224\u65ad\u662f\u5426\u6210\u529f\u83b7\u53d6\u9501\u3002\u7136\u540e\u7b49\u5f851\u79d2\u949f\uff0c\u518d\u8c03\u7528DistributedLock.Lock.unlock<\/code>\u51fd\u6570\u91ca\u653e\u9501\u3002<\/p>\n
\u7b2c\u516d\u6b65\uff1a\u8fd0\u884c\u7a0b\u5e8f<\/p>\n
\u5728\u547d\u4ee4\u884c\u7ec8\u7aef\u4e2d\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u6765\u8fd0\u884c\u7a0b\u5e8f\uff1a<\/p>\n
$ mix run lib\/main.exs<\/pre>\n
\u5728\u8fd0\u884c\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f60\u53ef\u4ee5\u591a\u6b21\u6267\u884c\u4e0a\u8ff0\u547d\u4ee4\u6765\u6a21\u62df\u591a\u4e2a\u8fdb\u7a0b\u540c\u65f6\u8bbf\u95ee\u76f8\u540c\u7684\u8d44\u6e90\uff0c\u5e76\u89c2\u5bdf\u5206\u5e03\u5f0f\u9501\u7684\u6548\u679c\u3002<\/p>\n
\u603b\u7ed3<\/p>\n
\u672c\u6587\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528Redis\u548cElixir\u5f00\u53d1\u5206\u5e03\u5f0f\u9501\u529f\u80fd\uff0c\u5e76\u63d0\u4f9b\u4e86\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002\u901a\u8fc7\u4f7f\u7528Redis\u4f5c\u4e3a\u5206\u5e03\u5f0f\u5b58\u50a8\uff0c\u5e76\u7ed3\u5408Elixir\u7684\u9ad8\u5e76\u53d1\u7279\u6027\uff0c\u6211\u4eec\u53ef\u4ee5\u7b80\u5355\u800c\u9ad8\u6548\u5730\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff0c\u4fdd\u8bc1\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u5171\u4eab\u8d44\u6e90\u7684\u4e92\u65a5\u6027\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u7406\u89e3\u548c\u5e94\u7528\u5206\u5e03\u5f0f\u9501\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n
\n
\n <\/dt>\n
\n   \u5982\u4f55\u5229\u7528Redis\u548cD\u8bed\u8a00\u5f00\u53d1\u5206\u5e03\u5f0f\u5171\u4eab\u5185\u5b58\u529f\u80fd\n <\/dd>\n<\/dl>\n
\n
\n <\/dt>\n
\n   \u5982\u4f55\u4f7f\u7528Redis\u548cLua\u5f00\u53d1\u5b9e\u65f6\u6d88\u606f\u8ba2\u9605\u529f\u80fd\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u4f7f\u7528Redis\u548cElixir...<\/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-202193","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202193","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=202193"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202193\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}