在使用GSON时，是否必须为需要排除的JSON对象提供类？

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.annotations.Expose;

class Person {
    @Expose
    private String name;
    private int age;

    // getters and setters
}

public class Main {
    public static void main(String[] args) {
        Person person = new Person();
        person.setName("John");
        person.setAge(30);

        Gson gson = new GsonBuilder().excludeFieldsWithoutExposeAnnotation().create();

        // 序列化为JSON字符串
        String json = gson.toJson(person);
        System.out.println(json);

        // 反序列化为对象
        Person deserializedPerson = gson.fromJson(json, Person.class);
        System.out.println(deserializedPerson.getName());
        System.out.println(deserializedPerson.getAge());
    }
}