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This article is to share with you about the differences between DAO and DTO. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

DAO:

Data access object data access object

Mainly used to encapsulate access to the database. Through it, POJO can be persisted into PO, and VO and DTO can be assembled with PO.

DTO:

Data Transfer Object data transfer object

It is mainly used for remote calls and other places where a large number of objects need to be transferred.

For example, if we have a table with 100 fields, the corresponding PO has 100 attributes.

But only 10 fields are displayed on our interface.

The client uses WEB service to get the data, so there is no need to pass the entire PO object to the client

At this point, we can use only these 10 attributes of DTO to pass the results to the client, so that the server table structure will not be exposed. After arriving at the client, if you use this object to display the interface, then its identity will be changed to VO.

Thank you for reading! This is the end of the article on "what's the difference between DAO and DTO". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

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