[Java知识库]对象转换MapStruct

    <properties>
        <java.version>11</java.version>
        <mapstruct.version>1.2.0.Final</mapstruct.version>
    </properties>


        <dependency>
            <groupId>org.mapstruct</groupId>
            <artifactId>mapstruct-jdk8</artifactId>
            <version>${mapstruct.version}</version>
        </dependency>
        <dependency>
            <groupId>org.mapstruct</groupId>
            <artifactId>mapstruct-processor</artifactId>
            <version>${mapstruct.version}</version>
        </dependency>

@Mapper
public interface ConvertTest {

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

    Son toSon(Father father);
}

?编译代码后，生成如下编译代码

@Generated(
    value = "org.mapstruct.ap.MappingProcessor",
    date = "2022-03-09T16:42:08+0800",
    comments = "version: 1.2.0.Final, compiler: javac, environment: Java 1.8.0_66 (Oracle Corporation)"
)
public class ConvertTestImpl implements ConvertTest {

    @Override
    public Son toSon(Father father) {
        if ( father == null ) {
            return null;
        }

        Son son = new Son();

        son.setId( father.getId() );
        son.setName( father.getName() );

        return son;
    }
}

@RestController
@RequestMapping(value = "demo")
public class Controller {

    private ConvertTest convertTest = ConvertTest.INSTANCE;

    @GetMapping(value = "test")
    public Son test(){
        Father father= new Father();
        father.setId(1);
        father.setSex("2");
        father.setName("3");
        return convertTest.toSon(father);
    }
}