java - How to transfer values ​​​​between the controller layer and the service layer?

Question

The current architecture controller layer and service layer use map<string, string> to transfer values. It feels that value conversion is very troublesome in many cases; but if bean objects are used to transfer values, many beans specifically used to transfer values ​​need to be built. . . . Please give me some advice from the architecture master

Answer 1

This is a detailed code implementation issue, not the architecture. .

There is obviously a problem with using map to pass parameters. Using encapsulated model to pass values ​​is more semantically clear and easy to maintain. Having too many models is not a problem

If you feel that converting from map to model every time is cumbersome, you can use the BeanUtil tool or write a tool class yourself to do the conversion

Answer 2

I agree with the above, many models can be layered using packages

Try to write code that is easy to maintain. Using map as return parameter will be a nightmare for future maintenance

Answer 3

I agree with the first floor. It is recommended that if there are few parameters, directly pass the variable of the specified type. If there are many parameters, directly create a dto and pass the parameters to the object

Answer 4

It is recommended to use beans to pass values, which is safe, reliable and easy to maintain. If the business requires many beans, the beans must be subcontracted and managed hierarchically. A clear and hierarchical project file structure will help clarify development ideas.