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JAVA UUID 生成唯一标识

Reprint it anywhere u want 需求项目在设计表的时候，要处理并发多的一些数据，类似订单号不能重复，要保持唯一。原本以为来个时间戳，精确到毫秒应该不错了。后来觉得是错了，测试环境下很多一样的ID，不能达到唯一标识。 UUID ...

JAVA UUID 生成唯一标识

需求项目在设计表的时候，要处理并发多的一些数据，类似订单号不能重复，要保持唯一。原本以为来个时间戳，精确到毫秒应该不错了。后来觉得是错了，测试环境下很多一样的ID，不能达到唯一标识。 UUID JDK API 是这么说的：...

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Java如何从这串字符串中单独取出uuid？

D:\apache-tomcat-7.0.61\webapps\zqbp\uploads\others\f13aa06b-a017-4c8a-aff5-80438b910189QQ图片20160406102742.pnguuid为f13aa06b-a017-4c8a-aff5-80438b91018...

JAVA UUID 生成

GUID是一个128位长的数字，一般用16进制表示。算法的核心思想是结合机器的网卡、当地时间、一个随即数来生成GUID。从理论上讲，如果一台机器每秒产生10000000个GUID，则可以保证（概率意义上）3240年不重复。 UUID是1.5中新增的一个类，在java.util下，用它可...

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更新时间 2024-03-02 11:47:18

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