<!-- 顺序UUID -->      <dependency>         <groupId>com.fasterxml.uuid</groupId>         <artifactId>java-uuid-generator</artifactId>         <version>3.1.4</version>      </dependency>    

import com.fasterxml.uuid.EthernetAddress;
import com.fasterxml.uuid.Generators;
import com.fasterxml.uuid.impl.TimeBasedGenerator;

public class KeyUtil {

    public static String generatorUUID(){
        TimeBasedGenerator timeBasedGenerator = Generators.timeBasedGenerator(EthernetAddress.fromInterface());
        return timeBasedGenerator.generate().toString();
    }

    public static void main(String[] args) {
        System.err.println(KeyUtil.generatorUUID());
        System.err.println(KeyUtil.generatorUUID());
    }
}

高并发下同意id生产

原文地址：https://www.cnblogs.com/xjatj/p/11372082.html