@Data
public class UserA {

    private Long id;

    //多映射
    @DestFieldMaps({
            @DestFieldMap(origClass = User.class,origField = "name")
    })
    private String nameA;

    @DestFieldMap(origClass = User.class,origField = "name")
    private String nameB;

    private String nameC;

}

@Data
public class User {

    private Long id;

    @OrigFieldMap(destClass = UserA.class, destField = "nameC")
    private String name;

}

@Test
public void mapTest(){
    User user = new User();
    user.setId(111L);
    user.setName("张三");

    UserA userA = BeanUtils.map(user, UserA.class);
    System.out.println(userA.toString());
}

UserA(id=111, nameA=张三, nameB=张三, nameC=张三)