Snowflake

java edition of Twitter Snowflake, a network service for generating unique ID numbers at high scale with some simple guarantees.

QuickStart

• import maven dependency

<dependency>
  <groupId>xyz.downgoon</groupId>
  <artifactId>snowflake</artifactId>
  <version>1.0.0</version>
</dependency>

• sample code

// datacenter: 2; workerId: 5
Snowflake snowflake = new Snowflake(2, 5);
long id1 = snowflake.nextId();
long id2 = snowflake.nextId();

snowflake.formatId(id1);

for more details, please read SnowflakeDemo2.java.

snowflake tutorial

• snowflake tutorial：中文教程

• http://www.cnblogs.com/lirenzuo/p/8440413.html: 分布式唯一id：snowflake算法思考