UUID工具包
1. maven依赖
<dependency>
<groupId>com.fasterxml.uuid</groupId>
<artifactId>java-uuid-generator</artifactId>
<version>4.0</version>
</dependency>
2. 使用示例
//UUID Version 1:基于时间的UUID(全球唯一)
UUID uuid1 = Generators.timeBasedGenerator().generate();
//UUID Version 3:基于名字的UUID(相关名字重复)
UUID uuid3 = Generators.nameBasedGenerator().generate("sai");
//UUID Version 4:随机UUID(java自带版本,极小概率重复)
UUID uuid4 = Generators.randomBasedGenerator().generate();
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