java - Gson反序列化和序列化 transient 字段

Question

我有以下带有一个字段 transient 的 Pojo 类:

public class User implements Serializable {

    public static final long serialVersionUID = 1L;
    public String name;
    transient public UserSession[] bookings;
}

我希望使用 Gson 库对 transient 文件进行序列化和反序列化，但不希望在文件上对文件进行序列化。 我怎样才能实现它？

Answer 1

如前所述in the documentation :

By default, if you mark a field as transient, it will be excluded. As well, if a field is marked as "static" then by default it will be excluded. If you want to include some transient fields then you can do the following:

import java.lang.reflect.Modifier;

Gson gson = new GsonBuilder() .excludeFieldsWithModifiers(Modifier.STATIC) .create();

这将从 Gson 序列化中排除 static 字段，但不包括 transient 和 volatile 字段。