通过雪花算法生成Id

引入依赖

 <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>5.5.8</version>
        </dependency>

生成id工具类

public class SnowflakeId {

    private static final Snowflake snowflake = IdUtil.createSnowflake(0, 0);

    public static Long nextId() {
        return snowflake.nextId();
    }

    public static String nextIdStr() {
        return String.valueOf(nextId());
    }
}