如何在 Java 序列化期间排除 Gson 中的字段?
javajsonobject oriented programmingprogramming
Gson 库提供了一种使用 transient 修饰符从序列化中排除字段的简单方法。如果我们将 Java 类中的字段设为瞬时，则 Gson 可以 忽略序列化 和反序列化。
示例
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.toJson(p);
System.out.println(jsonStr);
}
}
//Person classclass 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;
}
}
输出
{
"firstName": "Raja",
"age": 28
}
