在Mapstruct中使用双向实体方法

public class User {
    private Long id;
    private String name;
    private String email;
    // getters and setters
}

public class UserDTO {
    private Long id;
    private String fullName;
    private String emailAddress;
    // getters and setters
}

import org.mapstruct.Mapper;
import org.mapstruct.Mapping;
import org.mapstruct.factory.Mappers;

@Mapper
public interface UserMapper {
    UserMapper INSTANCE = Mappers.getMapper(UserMapper.class);

    @Mapping(source = "name", target = "fullName")
    @Mapping(source = "email", target = "emailAddress")
    UserDTO userToUserDTO(User user);

    @Mapping(source = "fullName", target = "name")
    @Mapping(source = "emailAddress", target = "email")
    User userDTOToUser(UserDTO userDTO);
}

public class Main {
    public static void main(String[] args) {
        User user = new User();
        user.setId(1L);
        user.setName("John Doe");
        user.setEmail("john.doe@example.com");

        UserDTO userDTO = UserMapper.INSTANCE.userToUserDTO(user);
        System.out.println(userDTO.getFullName()); // 输出: John Doe

        User mappedUser = UserMapper.INSTANCE.userDTOToUser(userDTO);
        System.out.println(mappedUser.getName()); // 输出: John Doe
    }
}

<dependencies>
    <dependency>
        <groupId>org.mapstruct</groupId>
        <artifactId>mapstruct</artifactId>
        <version>1.5.2.Final</version>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.8.1</version>
            <configuration>
                <annotationProcessorPaths>
                    <path>
                        <groupId>org.mapstruct</groupId>
                        <artifactId>mapstruct-processor</artifactId>
                        <version>1.5.2.Final</version>
                    </path>
                </annotationProcessorPaths>
            </configuration>
        </plugin>
    </plugins>
</build>

dependencies {
    implementation 'org.mapstruct:mapstruct:1.5.2.Final'
    annotationProcessor 'org.mapstruct:mapstruct-processor:1.5.2.Final'
}