6. Create StudentDto and StudentMapper

StudentDto class as a Model (in Spring MVC)

package net.javaguides.sms.dto;

import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;

@Setter
@Getter
@NoArgsConstructor
@AllArgsConstructor
public class StudentDto {
    private Long id;
    private String firstName;
    private String lastName;
    private String email;
}

Create StudentMapper

package net.javaguides.sms.mapper;

import net.javaguides.sms.dto.StudentDto;
import net.javaguides.sms.entity.Student;

public class StudentMapper {

    public static StudentDto mapToStudentDto(Student student){
        StudentDto studentDto = new StudentDto(
                student.getId(),
                student.getFirstName(),
                student.getLastName(),
                student.getEmail()
        );
        return studentDto;
    }
    
    public static Student mapToStudent(StudentDto studentDto){
        Student student = new Student(
                studentDto.getId(),
                studentDto.getFirstName(),
                studentDto.getLastName(),
                studentDto.getEmail()
        );
        return student;
    }
}