How controller receives the data submitted by the page form in spring MVC

1. Define a class that contains the values for the name of all input in the form and generates getter and setter methods for the corresponding fields in the class

2, in the corresponding controller function, add an object of the class as a parameter.

Examples are as follows:

Front Page form:

The form's corresponding class is defined as follows: (Of course, the class can also contain other fields, but must contain the name value from all input in the form and generate getter and setter methods for it)

Add an object of the class to the parameter of the corresponding controller function:

We can then use the method in the Oval box to retrieve the data submitted by the form. Isn't it convenient?