UUID生成方式

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背景

生成含时的UUID。

Java Uuid Generator (JUG)

使用

<dependency>
  <groupId>com.fasterxml.uuid</groupId>
  <artifactId>java-uuid-generator</artifactId>
  <version>4.0.1</version>
</dependency>

UUID uuid = Generators.randomBasedGenerator().generate();
UUID uuid = Generators.timeBasedGenerator().generate();

UUID uuidFromStr = UUIDUtil.uuid("ebb8e8fe-b1b1-11d7-8adb-00b0d078fa18");
byte[] rawUuidBytes = ...; // byte array with 16 bytes
UUID uuidFromBytes = UUIDUtil.uuid(rawUuidBytes)

参考

  1. java-uuid-generator
  2. 关于Java：如何生成基于时间的UUID？