The difference between Dto, entity, and vo

Each field in entity corresponds to the database, each field in dto corresponds to your front page, and VO is an entity class that uses classes to convert between entity and dto.

Reference:
The distinction between various Java objects (PO, BO, VO, DTO, POJO, DAO, Entity, JavaBean, JavaBeans):
https://www.cnblogs.com/lyjin/p/6389349.html
Mapping of entity and vo Method:
http://blog.csdn.net/Halleycomett/article/details/78697165