自定义JPA主键生成策略实现保存时允许自定义ID

参考: https://www.jianshu.com/p/db5f10b546df

public class CustomUUIDGenerator extends UUIDGenerator {
    @Override
    public Serializable generate(SessionImplementor session, Object object) throws HibernateException {
        if (object == null){
            throw new HibernateException(new NullPointerException());
        }
        String id = ((CarLocationLevel) object).getId();
        if (StringUtils.isBlank(id)) {
            return super.generate(session, object).toString().replaceAll("-", "") ;
        } else {
            return id;
        }
    }
}