将java Object转换为CSV

import java.io.FileWriter;
import java.io.IOException;
import java.lang.reflect.Field;
import java.util.List;

public class ObjectToCSV {
    public static void main(String[] args) {
        List<Person> personList = Arrays.asList(
                new Person("张三", 25, "北京"),
                new Person("李四", 30, "上海"),
                new Person("王五", 22, "深圳")
        );
        try {
            writeCSV(personList, "person.csv");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static <T> void writeCSV(List<T> dataList, String filePath) throws IOException {
        if (dataList == null || dataList.isEmpty()) {
            return;
        }
        Class<?> clazz = dataList.get(0).getClass();
        FileWriter fileWriter = new FileWriter(filePath);
        StringBuilder header = new StringBuilder();
        StringBuilder content = new StringBuilder();
        for (Field field : clazz.getDeclaredFields()) {
            header.append(field.getName()).append(",");
        }
        header.deleteCharAt(header.length() - 1);
        header.append("\n");
        fileWriter.write(header.toString());
        for (T data : dataList) {
            content.setLength(0);
            for (Field field : clazz.getDeclaredFields()) {
                field.setAccessible(true);
                content.append(field.get(data)).append(",");
            }
            content.deleteCharAt(content.length() - 1);
            content.append("\n");
            fileWriter.write(content.toString());
        }
        fileWriter.flush();
        fileWriter.close();
    }
}

class Person {
    private String name;
    private int age;
    private String city;

    public Person(String name, int age, String city) {
        this.name = name;
        this.age = age;
        this.city = city;
    }

    // Getter and Setter methods
}