Model-View-Controller Architecture
- Design goal : Identify which application component are model, view, or controller.
- 关系图
- MVC Implementation:
- Keep the implementation of the three objects types separate.
- Each type of object does not depend on how the other types are implement.(说白了互不影响)
- Model Object
- Represent the persistent information maintained by your application.
- The information can be kept in a database.
- View Object
- View objects represent.
- Input components of a webpage.
- Users interact with at least one view object.
- View object collects information from users in a form that the model and controller objects can use.
- View objects represent.
- Controller Object
- coordinate the model and view object.
- can be implemented by routing
- represent application control flows
Route
- A route is a mapping from an incoming HTTP request to athe appropriate controller code.(说白了就是找路，发来一个http请求，然后route是用来找应该发到哪个controller里)
- A URI(Uniform Resource Identifier) identifies a resource your application provides.
- The most common form of URI is a URL
HTTP request
- Most widely used http method is GET, POST, PUT and DELETE
Form data
- A user can input data into an HTML form displayed on a client-side web browser.
- Ways to send form data:
- Get method.
- Appended to the target URL
- Good for small amounts of data
- Post method
- sent via environment variables
- Good for large amounts of data.
- Get method.
