根据jsp表单创建对象

I have class of Person :

我有一类人：

package Model;

import java.util.Set;

public class Person {
    private String firstName ; 
    private String lastName ; 
    private int id ; 

    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }
    public void setLastName(String lastName) {
        this.lastName = lastName;
    }
    public void setId(int id) {
        this.id = id;
    }


}
package Mod