如何在将csv字段解析为java对象之前进行类型转换

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class CSVParser {
    public static void main(String[] args) {
        String csvFile = "data.csv";
        String line;
        String csvSplitBy = ",";
        List<Person> personList = new ArrayList<>();

        try (BufferedReader br = new BufferedReader(new FileReader(csvFile))) {
            while ((line = br.readLine()) != null) {
                String[] fields = line.split(csvSplitBy);

                // Perform type conversion for each field
                int id = Integer.parseInt(fields[0]);
                String name = fields[1];
                double salary = Double.parseDouble(fields[2]);
                Date dob = new SimpleDateFormat("yyyy-MM-dd").parse(fields[3]);

                // Create a new Person object and set the converted values
                Person person = new Person(id, name, salary, dob);

                // Add the person to the list
                personList.add(person);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }

        // Print the list of persons
        for (Person person : personList) {
            System.out.println(person);
        }
    }
}

class Person {
    private int id;
    private String name;
    private double salary;
    private Date dob;

    public Person(int id, String name, double salary, Date dob) {
        this.id = id;
        this.name = name;
        this.salary = salary;
        this.dob = dob;
    }

    // Getters and setters

    @Override
    public String toString() {
        return "Person{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", salary=" + salary +
                ", dob=" + dob +
                '}';
    }
}