mybatis-plus 如何使用雪花算法ID生成策略

@TableId(value="id",type=IdType.ASSIGN_ID)

    protected static void populateKeys(TableInfo tableInfo, MetaObject metaObject, Object entity) {
        IdType idType = tableInfo.getIdType();
        String keyProperty = tableInfo.getKeyProperty();
        if (StringUtils.isNotBlank(keyProperty) && null != idType && idType.getKey() >= 3) {
            IdentifierGenerator identifierGenerator = GlobalConfigUtils.getGlobalConfig(tableInfo.getConfiguration()).getIdentifierGenerator();
            Object idValue = metaObject.getValue(keyProperty);
            if (StringUtils.checkValNull(idValue)) {
                if (idType.getKey() == IdType.ASSIGN_ID.getKey()) {
                    if (Number.class.isAssignableFrom(tableInfo.getKeyType())) {
                        metaObject.setValue(keyProperty, identifierGenerator.nextId(entity));
                    } else {
                        metaObject.setValue(keyProperty, identifierGenerator.nextId(entity).toString());
                    }
                } else if (idType.getKey() == IdType.ASSIGN_UUID.getKey()) {
                    metaObject.setValue(keyProperty, identifierGenerator.nextUUID(entity));
                }
            }
        } 
    }

Long id=IdWorker.getIdStr()

@Component
public class CustomIdGenerator implements IdentifierGenerator {
    @Override
    public Long nextId(Object entity) {
       //可以将当前传入的class全类名来作为bizKey,或者提取参数来生成bizKey进行分布式Id调用生成.
       String bizKey = entity.getClass().getName();
        //根据bizKey调用分布式ID生成
        long id = ....;
       //返回生成的id值即可.
        return id;
    }
}

@Bean
public IdentifierGenerator idGenerator() {
    return new CustomIdGenerator();
}

public static void main(String[] args) {
    // 返回值  1385106677482582018
    System.out.println(IdWorker.getId());
    // 返回值 "1385106677482582019"
    System.out.println(IdWorker.getIdStr());
}