{"id":2251,"date":"2024-11-10T12:19:50","date_gmt":"2024-11-10T04:19:50","guid":{"rendered":"https:\/\/fwq.ai\/blog\/2251\/"},"modified":"2024-11-10T12:19:50","modified_gmt":"2024-11-10T04:19:50","slug":"snowuuid-%e7%ae%80%e4%bb%8b%ef%bc%9a%e5%8f%97-snowflake-%e5%90%af%e5%8f%91%e7%9a%84%e5%88%86%e5%b8%83%e5%bc%8f-uuid-%e7%94%9f%e6%88%90%e5%99%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/2251\/","title":{"rendered":"SnowUUID \u7b80\u4ecb\uff1a\u53d7 Snowflake \u542f\u53d1\u7684\u5206\u5e03\u5f0f UUID \u751f\u6210\u5668"},"content":{"rendered":"

\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u786e\u4fdd\u8de8\u591a\u4e2a\u670d\u52a1\u5668\u6216\u8fdb\u7a0b\u7684\u552f\u4e00 id \u53ef\u80fd\u5177\u6709\u6311\u6218\u6027\u3002 id \u5fc5\u987b\u662f\u552f\u4e00\u7684\u3001\u5feb\u901f\u751f\u6210\u7684\uff0c\u5e76\u4e14\u6709\u65f6\u8fd8\u4f20\u8fbe\u6709\u5173\u5176\u6765\u6e90\u7684\u4fe1\u606f\u3002\u53d7 twitter \u7684 snowflake id \u751f\u6210\u7b97\u6cd5\u7684\u542f\u53d1\uff0c\u6211\u5f00\u53d1\u4e86 snowuuid<\/strong>\uff0c\u8fd9\u662f\u4e00\u4e2a\u4e13\u4e3a node.js \u5e94\u7528\u7a0b\u5e8f\u8bbe\u8ba1\u7684\u5206\u5e03\u5f0f uuid \u751f\u6210\u5668\u3002 snowuuid \u7ed3\u5408\u4e86\u7cbe\u5ea6\u548c\u53ef\u6269\u5c55\u6027\uff0c\u751f\u6210\u72ec\u7279\u7684\u3001\u6309\u65f6\u95f4\u6392\u5e8f\u7684\u6807\u8bc6\u7b26\uff0c\u53ef\u4ee5\u9488\u5bf9\u4efb\u4f55\u5206\u5e03\u5f0f\u8bbe\u7f6e\u8fdb\u884c\u81ea\u5b9a\u4e49\u3002<\/p>\n

\u4e3a\u4ec0\u4e48\u9009\u62e9 snowuuid\uff1f <\/h3>\n

snowuuid \u5c06 twitter snowflake \u7b97\u6cd5\u7684\u5f3a\u5927\u529f\u80fd\u878d\u5165\u5230\u4e00\u4e2a\u7d27\u51d1\u3001\u6613\u4e8e\u4f7f\u7528\u7684 npm \u5305\u4e2d\uff0c\u4f9b javascript \u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u3002 snowuuid \u751f\u6210\u7684\u6bcf\u4e2a id \u90fd\u662f 64 \u4f4d\u6574\u6570\uff0c\u5305\u542b\u6709\u5173\u65f6\u95f4\u6233\u3001\u6570\u636e\u4e2d\u5fc3\u3001worker \u548c\u5e8f\u5217\u7684\u4fe1\u606f\uff0c\u975e\u5e38\u9002\u5408\u6bcf\u4e2a\u670d\u52a1\u5668\u6216\u8fdb\u7a0b\u72ec\u7acb\u751f\u6210 id \u7684\u5206\u5e03\u5f0f\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n

\"SnowUUID<\/p>\n

snowuuid\u7684\u7279\u70b9 <\/h3>\n
    \n
  • \u65f6\u95f4\u987a\u5e8f id<\/strong>\uff1aid \u6309\u65f6\u95f4\u987a\u5e8f\u751f\u6210\uff0c\u786e\u4fdd\u5b83\u4eec\u53ef\u4ee5\u6309\u65f6\u95f4\u987a\u5e8f\u6392\u5e8f\u3002<\/li>\n
  • \u81ea\u5b9a\u4e49\u9009\u9879<\/strong>\uff1asnowuuid \u5141\u8bb8\u914d\u7f6e\u6570\u636e\u4e2d\u5fc3\u548c\u5de5\u4f5c\u4eba\u5458 id\uff0c\u652f\u6301\u8de8\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u4e0d\u540c\u8bbe\u7f6e\u3002<\/li>\n
  • \u9ad8\u541e\u5410\u91cf<\/strong>\uff1asnowuuid \u5177\u6709\u6bcf\u6beb\u79d2\u7684\u5e8f\u5217\u9650\u5236\uff0c\u53ef\u4ee5\u5904\u7406\u9ad8\u541e\u5410\u91cf\u8981\u6c42\uff0c\u9632\u6b62 id \u51b2\u7a81\u3002<\/li>\n<\/ul>\n

    snowuuid \u7684\u5de5\u4f5c\u539f\u7406 <\/h3>\n

    snowuuid id \u7531\u591a\u4e2a\u6bb5\u7ec4\u6210\uff1a<\/p>\n

      \n
    1. \u65f6\u95f4\u6233<\/strong>\uff1a\u786e\u4fdd id \u6309\u65f6\u95f4\u987a\u5e8f\u3002<\/li>\n
    2. \u6570\u636e\u4e2d\u5fc3id<\/strong>\uff1a\u533a\u5206\u4e0d\u540c\u7684\u6570\u636e\u4e2d\u5fc3\u3002<\/li>\n
    3. \u5de5\u4f5c\u4eba\u5458 id<\/strong>\uff1a\u533a\u5206\u6570\u636e\u4e2d\u5fc3\u5185\u7684\u4e0d\u540c\u5de5\u4f5c\u4eba\u5458\u3002<\/li>\n
    4. \u5e8f\u5217<\/strong>\uff1a\u786e\u4fdd\u53ef\u4ee5\u5728\u540c\u4e00\u6beb\u79d2\u5185\u521b\u5efa\u591a\u4e2a\u552f\u4e00id\u3002<\/li>\n<\/ol>\n

      \u4ee5\u4e0b\u662f\u6bcf\u4e2a\u6bb5\u7684\u4f4d\u5206\u5e03\u7ec6\u5206\uff1a<\/p>\n\n\n\n\n\n\n\n\n
      segment<\/th>\nbits allocated<\/th>\n<\/tr>\n<\/thead>\n
      timestamp<\/td>\n41 bits<\/td>\n<\/tr>\n
      datacenter id<\/td>\n5 bits<\/td>\n<\/tr>\n
      worker id<\/td>\n5 bits<\/td>\n<\/tr>\n
      sequence number<\/td>\n12 bits<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u7528\u6cd5 <\/h3>\n

      \u4ece npm \u5b89\u88c5 snowuuid\uff1a<\/p>\n

      npm install snowuuid\n<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u8981\u4f7f\u7528 snowuuid \u751f\u6210\u552f\u4e00 id\uff0c\u8bf7\u5bfc\u5165\u5305\u5e76\u521d\u59cb\u5316\u65b0\u5b9e\u4f8b\uff1a<\/p>\n
      const { snowuuid } = require('snowuuid');\n\n\/\/ initialize snowuuid with options\nconst generator = new snowuuid({\n    epoch: 1609459200000n,  \/\/ starting from january 1, 2021\n    workerid: 1n,           \/\/ unique id for each worker\n    datacenterid: 1n        \/\/ unique id for each datacenter\n});\n\n\/\/ generate a unique id\nconst uniqueid = generator.nextid();\nconsole.log(uniqueid.tostring());\n<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
       \u81ea\u5b9a\u4e49snowuuid <\/h3>\n
      snowuuid \u7684 workeroptions \u754c\u9762\u63d0\u4f9b\u53ef\u81ea\u5b9a\u4e49\u7684\u8bbe\u7f6e\u4ee5\u9002\u5e94\u60a8\u7684\u7cfb\u7edf\uff1a<\/p>\n
        \n
      •  \u7eaa\u5143<\/strong>\uff1a\u81ea\u5b9a\u4e49\u5f00\u59cb\u65f6\u95f4\uff08\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d\uff09\u3002<\/li>\n
      •  workerid<\/strong>\uff1a\u6570\u636e\u4e2d\u5fc3\u5185\u6bcf\u4e2a\u5de5\u4f5c\u4eba\u5458\u7684\u552f\u4e00\u6807\u8bc6\u7b26\u3002<\/li>\n
      •  datacenterid<\/strong>\uff1a\u6bcf\u4e2a\u6570\u636e\u4e2d\u5fc3\u7684\u552f\u4e00\u6807\u8bc6\u7b26\u3002 <\/li>\n<\/ul>\n
        const generator = new snowuuid({\n    epoch: 1610000000000n,  \/\/ custom epoch\n    workerid: 3n,           \/\/ worker id\n    datacenterid: 2n        \/\/ datacenter id\n});\n<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
         \u5e95\u5c42\uff1a\u4ee3\u7801 <\/h3>\n
        snowuuid \u7684\u6838\u5fc3\u662f nextid() \u51fd\u6570\uff0c\u5b83\u901a\u8fc7\u7ec4\u5408\u65f6\u95f4\u6233\u3001\u6570\u636e\u4e2d\u5fc3 id\u3001\u5de5\u4f5c id \u548c\u5e8f\u5217\u4f4d\u6765\u751f\u6210\u552f\u4e00 id\u3002\u5176\u5de5\u4f5c\u539f\u7406\u5982\u4e0b\uff1a<\/p>\n
          \n
        •  \u65f6\u949f\u5904\u7406<\/strong>\uff1a\u8be5\u7b97\u6cd5\u786e\u4fdd\u7cfb\u7edf\u65f6\u949f\u59cb\u7ec8\u5411\u524d\u79fb\u52a8\u3002\u5982\u679c\u65f6\u949f\u5012\u9000\uff0c\u5219\u4f1a\u629b\u51fa\u9519\u8bef\u4ee5\u9632\u6b62\u91cd\u590d id\u3002<\/li>\n
        •  \u5e8f\u5217\u6ea2\u51fa\u5904\u7406<\/strong>\uff1a\u5f53\u4e00\u6beb\u79d2\u5185\u8fbe\u5230\u5e8f\u5217\u9650\u5236\u65f6\uff0csnowuuid \u4f1a\u7b49\u5f85\u4e0b\u4e00\u6beb\u79d2\u7ee7\u7eed\u751f\u6210 id\u3002<\/li>\n<\/ul>\n
           \u793a\u4f8b\u4ee3\u7801\uff1anextid \u51fd\u6570 <\/h3>\n
          nextId() {\n    let timestamp = SnowUUID.now();\n\n    if (timestamp < this.#lastTimestamp) {\n        throw new Error(\n            `Clock moved backwards. Unable to generate ID for ${this.#lastTimestamp - timestamp} milliseconds.`\n        );\n    }\n\n    if (timestamp === this.#lastTimestamp) {\n        this.#sequence = (this.#sequence + 1n) & SEQUENCE_MASK;\n        if (this.#sequence === 0n) {\n            timestamp = this.tilNextMillis(this.#lastTimestamp);\n        }\n    } else {\n        this.#sequence = 0n;\n    }\n\n    this.#lastTimestamp = timestamp;\n\n    return (\n        ((timestamp - this.#epoch) << DEFAULT_TIMESTAMP_LEFT_SHIFT) |\n        (this.#datacenterId << DEFAULT_DATACENTER_ID_SHIFT) |\n        (this.#workerId << DEFAULT_WORKER_ID_SHIFT) |\n        this.#sequence\n    );\n}\n<\/pre>\n
           \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
           \u7ed3\u8bba <\/h3>\n
          snowuuid \u4e3a\u5206\u5e03\u5f0f uuid \u751f\u6210\u63d0\u4f9b\u4e86\u5f3a\u5927\u3001\u53ef\u5b9a\u5236\u4e14\u9ad8\u6548\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u975e\u5e38\u9002\u5408\u9700\u8981\u8de8\u591a\u4e2a\u7cfb\u7edf\u7684\u548c\u552f\u4e00 id \u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u65e0\u8bba\u662f\u7528\u4e8e\u5206\u6790\u3001\u6d88\u606f\u4f20\u9012\u8fd8\u662f\u5fae\u670d\u52a1\uff0csnowuuid \u90fd\u80fd\u786e\u4fdd\u552f\u4e00\u7684\u3001\u6309\u65f6\u95f4\u6392\u5e8f\u7684\u6807\u8bc6\u7b26\uff0c\u5e2e\u52a9\u60a8\u5145\u6ee1\u4fe1\u5fc3\u5730\u8fdb\u884c\u6269\u5c55\u3002<\/p>\n
          \u5728 hub \u4e0a\u63a2\u7d22 snowuuid\uff1asnowuuid \u5b58\u50a8\u5e93<\/p>\n
          \u4ee5\u4e0a\u5c31\u662fSnowUUID \u7b80\u4ecb\uff1a\u53d7 Snowflake \u542f\u53d1\u7684\u5206\u5e03\u5f0f UUID \u751f\u6210\u5668\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
          \u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u786e\u4fdd\u8de8\u591a\u4e2a\u670d\u52a1\u5668\u6216\u8fdb\u7a0b\u7684\u552f\u4e00 id \u53ef\u80fd\u5177\u6709\u6311\u6218\u6027\u3002 id \u5fc5\u987b\u662f\u552f\u4e00\u7684\u3001\u5feb\u901f\u751f\u6210\u7684\uff0c\u5e76\u4e14\u6709\u65f6\u8fd8\u4f20\u8fbe\u6709\u5173\u5176\u6765\u6e90\u7684\u4fe1\u606f\u3002\u53d7 twitter \u7684 snowflake id \u751f\u6210\u7b97\u6cd5\u7684\u542f\u53d1\uff0c\u6211\u5f00\u53d1\u4e86 snowuuid\uff0c\u8fd9\u662f\u4e00\u4e2a\u4e13\u4e3a node.js \u5e94\u7528\u7a0b\u5e8f\u8bbe\u8ba1\u7684\u5206\u5e03\u5f0f uuid \u751f\u6210\u5668\u3002 snowuuid \u7ed3\u5408\u4e86\u7cbe\u5ea6\u548c\u53ef\u6269\u5c55\u6027\uff0c\u751f\u6210\u72ec\u7279\u7684\u3001\u6309\u65f6\u95f4\u6392\u5e8f\u7684\u6807\u8bc6\u7b26\uff0c\u53ef\u4ee5\u9488\u5bf9\u4efb\u4f55\u5206\u5e03\u5f0f\u8bbe\u7f6e\u8fdb\u884c\u81ea\u5b9a\u4e49\u3002 \u4e3a\u4ec0\u4e48\u9009\u62e9 snowuuid\uff1f snowuuid \u5c06 twitter snowflake \u7b97\u6cd5\u7684\u5f3a\u5927\u529f\u80fd\u878d\u5165\u5230\u4e00\u4e2a\u7d27\u51d1\u3001\u6613\u4e8e\u4f7f\u7528\u7684 npm \u5305\u4e2d\uff0c\u4f9b javascript \u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u3002 snowuuid \u751f\u6210\u7684\u6bcf\u4e2a id \u90fd\u662f 64 \u4f4d\u6574\u6570\uff0c\u5305\u542b\u6709\u5173\u65f6\u95f4\u6233\u3001\u6570\u636e\u4e2d\u5fc3\u3001worker \u548c\u5e8f\u5217\u7684\u4fe1\u606f\uff0c\u975e\u5e38\u9002\u5408\u6bcf\u4e2a\u670d\u52a1\u5668\u6216\u8fdb\u7a0b\u72ec\u7acb\u751f\u6210 id \u7684\u5206\u5e03\u5f0f\u5e94\u7528\u7a0b\u5e8f\u3002 snowuuid\u7684\u7279\u70b9 \u65f6\u95f4\u987a\u5e8f id\uff1aid \u6309\u65f6\u95f4\u987a\u5e8f\u751f\u6210\uff0c\u786e\u4fdd\u5b83\u4eec\u53ef\u4ee5\u6309\u65f6\u95f4\u987a\u5e8f\u6392\u5e8f\u3002 \u81ea\u5b9a\u4e49\u9009\u9879\uff1asnowuuid \u5141\u8bb8\u914d\u7f6e\u6570\u636e\u4e2d\u5fc3\u548c\u5de5\u4f5c\u4eba\u5458 id\uff0c\u652f\u6301\u8de8\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u4e0d\u540c\u8bbe\u7f6e\u3002 \u9ad8\u541e\u5410\u91cf\uff1asnowuuid \u5177\u6709\u6bcf\u6beb\u79d2\u7684\u5e8f\u5217\u9650\u5236\uff0c\u53ef\u4ee5\u5904\u7406\u9ad8\u541e\u5410\u91cf\u8981\u6c42\uff0c\u9632\u6b62 id \u51b2\u7a81\u3002 snowuuid \u7684\u5de5\u4f5c\u539f\u7406 snowuuid id \u7531\u591a\u4e2a\u6bb5\u7ec4\u6210\uff1a \u65f6\u95f4\u6233\uff1a\u786e\u4fdd id […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-2251","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/2251","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=2251"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/2251\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=2251"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=2251"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=2251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}