{"id":202019,"date":"2025-05-10T14:04:11","date_gmt":"2025-05-10T06:04:11","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202019\/"},"modified":"2025-05-10T14:04:11","modified_gmt":"2025-05-10T06:04:11","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8redis%e5%92%8cjavascript%e5%ae%9e%e7%8e%b0%e5%88%86%e5%b8%83%e5%bc%8f%e9%94%81%e6%9c%ba%e5%88%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202019\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Redis\u548cJavaScript\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u673a\u5236"},"content":{"rendered":"

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

\u5982\u4f55\u4f7f\u7528Redis\u548cJavaScript\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u673a\u5236<\/h1>\n

\u672c\u7bc7\u6587\u7ae0\u4e3b\u8981\u662f\u7ed3\u5408\u6211\u4e4b\u524d\u9762\u8bd5\u7684\u5404\u79cd\u7ecf\u5386\u548c\u5b9e\u6218\u5f00\u53d1\u4e2d\u9047\u5230\u7684\u95ee\u9898\u89e3\u51b3\u7ecf\u9a8c\u6574\u7406\u7684\uff0c\u5e0c\u671b\u8fd9\u7bc7\u300a\u5982\u4f55\u4f7f\u7528Redis\u548cJavaScript\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u673a\u5236\u300b\u5bf9\u4f60\u6709\u5f88\u5927\u5e2e\u52a9\uff01\u6b22\u8fce\u6536\u85cf\uff0c\u5206\u4eab\u7ed9\u66f4\u591a\u7684\u9700\u8981\u7684\u670b\u53cb\u5b66\u4e60~<\/p>\n

\u5982\u4f55\u4f7f\u7528Redis\u548cJavaScript\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u673a\u5236<\/p>\n

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\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u7531\u4e8e\u591a\u4e2a\u8282\u70b9\u4e4b\u95f4\u7684\u5e76\u884c\u64cd\u4f5c\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u95ee\u9898\u3002\u4e3a\u4e86\u4fdd\u8bc1\u5728\u5206\u5e03\u5f0f\u73af\u5883\u4e2d\u7684\u6570\u636e\u64cd\u4f5c\u7684\u4e00\u81f4\u6027\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5206\u5e03\u5f0f\u9501\u673a\u5236\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528Redis\u548cJavaScript\u5b9e\u73b0\u7b80\u5355\u7684\u5206\u5e03\u5f0f\u9501\u3002<\/p>\n

\u4e00\u3001\u5206\u5e03\u5f0f\u9501\u7684\u6982\u5ff5
\u5206\u5e03\u5f0f\u9501\u662f\u4e00\u79cd\u5e76\u53d1\u63a7\u5236\u7684\u673a\u5236\uff0c\u5b83\u80fd\u591f\u786e\u4fdd\u5728\u5206\u5e03\u5f0f\u73af\u5883\u4e2d\u7684\u591a\u4e2a\u8282\u70b9\u5e76\u53d1\u64cd\u4f5c\u540c\u4e00\u8d44\u6e90\u65f6\u7684\u53ef\u9760\u6027\u548c\u4e00\u81f4\u6027\u3002\u5e38\u89c1\u7684\u5206\u5e03\u5f0f\u9501\u5b9e\u73b0\u65b9\u5f0f\u6709\u57fa\u4e8e\u6570\u636e\u5e93\u7684\u9501\u3001\u57fa\u4e8e\u6587\u4ef6\u7684\u9501\u4ee5\u53ca\u57fa\u4e8e\u5185\u5b58\u7684\u9501\u7b49\u3002\u672c\u6587\u5c06\u91cd\u70b9\u4ecb\u7ecd\u57fa\u4e8eRedis\u548cJavaScript\u5b9e\u73b0\u7684\u5206\u5e03\u5f0f\u9501\u673a\u5236\u3002<\/p>\n

\u4e8c\u3001\u4f7f\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501
Redis\u662f\u4e00\u4e2a\u9ad8\u6027\u80fd\u7684\u952e\u503c\u5b58\u50a8\u7cfb\u7edf\uff0c\u5b83\u652f\u6301\u591a\u79cd\u6570\u636e\u7ed3\u6784\u548c\u64cd\u4f5c\u3002\u4e3a\u4e86\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff0c\u6211\u4eec\u53ef\u4ee5\u5229\u7528Redis\u7684\u539f\u5b50\u64cd\u4f5c\u548c\u8fc7\u671f\u65f6\u95f4\u7279\u6027\u3002<\/p>\n

    \n
  1. \u83b7\u53d6\u9501
    \u5f53\u4e00\u4e2a\u8282\u70b9\u9700\u8981\u83b7\u53d6\u9501\u65f6\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u4f7f\u7528SETNX\u547d\u4ee4\uff08SET if Not eXists\uff09\u5728Redis\u4e2d\u521b\u5efa\u4e00\u4e2a\u952e\uff0c\u5e76\u8bbe\u7f6e\u4e00\u4e2a\u8fc7\u671f\u65f6\u95f4\uff0c\u8868\u793a\u8fd9\u4e2a\u8282\u70b9\u5df2\u7ecf\u83b7\u5f97\u4e86\u9501\u3002\u5982\u679cSETNX\u6210\u529f\uff0c\u5219\u8868\u793a\u83b7\u53d6\u9501\u6210\u529f\uff1b\u5426\u5219\uff0c\u8868\u793a\u5df2\u7ecf\u6709\u5176\u4ed6\u8282\u70b9\u83b7\u53d6\u4e86\u9501\uff0c\u5f53\u524d\u8282\u70b9\u9700\u8981\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u540e\u518d\u6b21\u5c1d\u8bd5\u83b7\u53d6\u9501\u3002\u4e3a\u4e86\u907f\u514d\u6b7b\u9501\uff0c\u9700\u8981\u4e3a\u9501\u8bbe\u7f6e\u4e00\u4e2a\u5408\u9002\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u786e\u4fdd\u5373\u4f7f\u9501\u7684\u6301\u6709\u8005\u7531\u4e8e\u67d0\u79cd\u539f\u56e0\u65e0\u6cd5\u91ca\u653e\u9501\uff0c\u5176\u4ed6\u8282\u70b9\u4e5f\u80fd\u591f\u83b7\u53d6\u5230\u9501\u3002<\/li>\n
  2. \u91ca\u653e\u9501
    \u5f53\u4e00\u4e2a\u8282\u70b9\u6267\u884c\u5b8c\u9700\u8981\u52a0\u9501\u7684\u64cd\u4f5c\u540e\uff0c\u9700\u8981\u91ca\u653e\u9501\uff0c\u8ba9\u5176\u4ed6\u8282\u70b9\u53ef\u4ee5\u83b7\u53d6\u9501\u3002\u8282\u70b9\u53ef\u4ee5\u4f7f\u7528DEL\u547d\u4ee4\u6765\u5220\u9664Redis\u4e2d\u7684\u9501\u952e\uff0c\u8868\u793a\u5f53\u524d\u8282\u70b9\u5df2\u7ecf\u91ca\u653e\u4e86\u9501\u3002<\/li>\n<\/ol>\n

    \u4e09\u3001JavaScript\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501
    \u5728JavaScript\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Redis\u7684\u5ba2\u6237\u7aef\u5e93\u6765\u64cd\u4f5cRedis\uff0c\u5e76\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u673a\u5236\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528Node.js\u548cioredis\u5e93\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n

    const Redis = require('ioredis');\nconst redis = new Redis();\n\nasync function acquireLock(lockKey, expireTime) {\n  const result = await redis.set(lockKey, 'LOCKED', 'EX', expireTime, 'NX');\n  \n  if (result === 'OK') {\n    return true;\n  } else {\n    return false;\n  }\n}\n\nasync function releaseLock(lockKey) {\n  const result = await redis.del(lockKey);\n  \n  if (result === 1) {\n    return true;\n  } else {\n    return false;\n  }\n}\n\n\/\/ \u4f7f\u7528\u793a\u4f8b\nasync function main() {\n  const lockKey = 'mylock';\n  const expireTime = 10; \/\/ \u9501\u7684\u8fc7\u671f\u65f6\u95f4\u4e3a10\u79d2\n  \n  const acquired = await acquireLock(lockKey, expireTime);\n  \n  if (acquired) {\n    \/\/ \u6267\u884c\u9700\u8981\u52a0\u9501\u7684\u64cd\u4f5c\n    console.log('\u64cd\u4f5c\u6210\u529f');\n  } else {\n    \/\/ \u672a\u80fd\u83b7\u53d6\u9501\uff0c\u9700\u8981\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u540e\u518d\u6b21\u5c1d\u8bd5\n    console.log('\u64cd\u4f5c\u5931\u8d25\uff0c\u8bf7\u7a0d\u540e\u518d\u8bd5');\n  }\n  \n  await releaseLock(lockKey);\n}\n\nmain();<\/pre>\n
    \u4ee5\u4e0a\u793a\u4f8b\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86ioredis\u5e93\u6765\u8fde\u63a5\u5e76\u64cd\u4f5cRedis\u3002\u901a\u8fc7acquireLock<\/code>\u51fd\u6570\u6765\u5b9e\u73b0\u83b7\u53d6\u9501\u7684\u529f\u80fd\uff0c\u901a\u8fc7releaseLock<\/code>\u51fd\u6570\u6765\u5b9e\u73b0\u91ca\u653e\u9501\u7684\u529f\u80fd\u3002\u5728\u4f7f\u7528\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u9700\u8981\u4fee\u6539\u9501\u7684\u8fc7\u671f\u65f6\u95f4\u548c\u952e\u540d\u3002<\/p>\n
    \u7ed3\u8bba\uff1a
    \u901a\u8fc7\u4f7f\u7528Redis\u548cJavaScript\uff0c\u6211\u4eec\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u673a\u5236\u3002\u5206\u5e03\u5f0f\u9501\u7684\u5e94\u7528\u573a\u666f\u975e\u5e38\u5e7f\u6cdb\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u5728\u590d\u6742\u7684\u5206\u5e03\u5f0f\u73af\u5883\u4e0b\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u53ef\u9760\u6027\u3002\u5f53\u7136\uff0c\u5b9e\u9645\u5e94\u7528\u4e2d\u53ef\u80fd\u4f1a\u5b58\u5728\u66f4\u591a\u7684\u7ec6\u8282\u548c\u590d\u6742\u6027\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u573a\u666f\u8fdb\u884c\u8c03\u6574\u548c\u4f18\u5316\u3002\u5e0c\u671b\u672c\u6587\u80fd\u591f\u5bf9\u4f60\u7406\u89e3\u548c\u5e94\u7528\u5206\u5e03\u5f0f\u9501\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n
    \n
    \n <\/dt>\n
    \n   Redis\u5728Ruby\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\uff1a\u5982\u4f55\u5904\u7406\u5e76\u53d1\u8bf7\u6c42\n <\/dd>\n<\/dl>\n
    \n
    \n <\/dt>\n
    \n   \u5229\u7528PHP\u548cRedis\u5b9e\u73b0\u5b9e\u65f6\u7528\u6237\u901a\u77e5\u7cfb\u7edf\uff1a\u5982\u4f55\u5904\u7406\u6d88\u606f\u63a8\u9001\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
    \u5982\u4f55\u4f7f\u7528Redis\u548cJavaSc...<\/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-202019","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202019","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=202019"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202019\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202019"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202019"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202019"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}