What are the advantages and disadvantages of mvc model

The advantages of the MVC model are: clear division of labor, high reusability and portability of the model, which allows the replacement of view and controller objects; the disadvantage is that there is no clear definition, which reduces the performance of the system and increases the code workload

MVC can be seen as an architecture or a design pattern, which forces the application's input, processing and output to be separated. Divide an application into three parts: model, view and controller. Next, I will introduce the advantages and disadvantages of the MVC model, which has a certain reference effect. I hope it will be helpful to everyone

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Advantages of the MVC model

(1) Clear division of labor, through the MVC model Database development, program business logic development and page development can be separated, which facilitates later code maintenance and makes the division of labor among programmers clearer

(2) A model can be created while running And using multiple views can synchronize the behavior of all associated views and controllers

(3) High reusability, multiple views share a model, regardless of whether the view layer uses a flash interface or a wap interface. It can be processed with a model, thus maximizing code reuse

(4) The model is portable. Because the model is independent of the view, it can be independently transplanted to a new working platform and only requires Just make new modifications to the views and controllers on the new platform

(5) The pluggability of the views and controllers allows the replacement of view and controller objects, and can be dynamically modified according to needs Turn objects on or off, or even perform object replacement during runtime.

Disadvantages of the MVC pattern

(1) There is no clear definition, and it is difficult to fully understand it because of its internals The principle is relatively complicated, so you have to spend time to learn and understand it

(2) Reduce the performance of the system, because the view cannot directly access the database and needs the help of the controller, so the performance is reduced

(3) Not suitable Small applications, because it takes a lot of time to use MVC in small-scale programs, the gain outweighs the gain, and it increases the code and workload

(4) Since the model and the view must be strictly separated, this gives Debugging adds difficulty, and the modification of the cascade level is top-down. If a certain business only needs to add a new view, this addition will increase the business logic layer and data access layer due to the limitations of the MVC model idea. code.

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