1、mapstruct和其他映射工具的对比请参考以下地址

 https://www.cnblogs.com/javaguide/p/11861749.html

2、pom.xml文件中添加依赖，在使用lombok的时候mapstruct插件会不生效，引入mapstruct-jdk8来解决问题

<dependency>
    <groupId>org.mapstruct</groupId>
    <artifactId>mapstruct-processor</artifactId>
    <version>1.3.0.Final</version>
</dependency>
<!-- 解决springboot 项目使用 lombok 插件后，添加 mapstruct  插件，maven 编译时 mapstruct 插件不起作用 -->
<dependency>
    <groupId>org.mapstruct</groupId>
    <artifactId>mapstruct-jdk8</artifactId>
    <version>1.3.0.Final</version>
</dependency>

3、添加插件

<plugins>
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.5.1</version>
        <configuration>
            <source>1.8</source>
            <target>1.8</target>
            <annotationProcessorPaths>
                <path>
                    <groupId>org.mapstruct</groupId>
                    <artifactId>mapstruct-processor</artifactId>
                    <version>1.3.0.Final</version>
                </path>
            </annotationProcessorPaths>
        </configuration>
    </plugin>
</plugins>

4、idea安装插件

 

 5、代码编写

1）举例car实体

public class Car {

    private String make;
    private int numberOfSeats;
    private CarType type;
}

2）举例cardto

public class CarDto {

    private String make;
    private int seatCount;
    private String type;
}

3）举例mapper

@Mapper
public interface CarMapping {

    CarMapping INSTANCE = Mappers.getMapper( CarMapping .class );

    @Mapping(source = "numberOfSeats", target = "seatCount")
    CarDto carToCarDto(Car car);
}

4）使用

CarDto carDto=CarMapping.INSTANCE.carToCarDto(car);

 6、高级使用参考

https://blog.csdn.net/gaochuanlove/article/details/101061474