Java에서 Gson 직렬화 중에 필드를 제외하는 방법은 무엇입니까?

import com.google.gson.*;
public class GsonTransientFieldTest {
   public static void main(String[] args) {
      Gson gson = new GsonBuilder().setPrettyPrinting().create();
      Person p = new Person("Raja", "Ramesh", 28, 35000.00);
      String jsonStr = gson.<strong>toJson</strong>(p);
      System.out.println(jsonStr);
   }
}
//Person class<strong>
</strong>class Person {
   private String firstName;
   private transient String lastName;
   private int age;
   private transient double salary;
   public Person(String firstName, String lastName, int age, double salary) {
      super();
      this.firstName = firstName;
      this.lastName = lastName;
      this.age = age;
      this.salary = salary;
   }
}

{
 "firstName": "Raja",
 "age": 28
}