lombok与mapstruct

依赖引入

• Maven

  <dependencies>
    <dependency>
        <groupId>org.mapstruct</groupId>
        <artifactId>mapstruct</artifactId>
        <version>1.4.2.Final</version>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.18.16</version>
    </dependency>
  </dependencies>
  <build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
                <encoding>UTF-8</encoding>
                <annotationProcessorPaths>
                    <path>
                        <groupId>org.projectlombok</groupId>
                        <artifactId>lombok</artifactId>
                        <version>1.18.16</version>
                    </path>
                    <path>
                        <groupId>org.mapstruct</groupId>
                        <artifactId>mapstruct-processor</artifactId>
                        <version>1.4.2.Final</version>
                    </path>
                </annotationProcessorPaths>
            </configuration>
        </plugin>
    </plugins>
  </build>

• Gradle

  dependencies {
    implementation 'org.mapstruct:mapstruct:1.4.2.Final'
    compileOnly 'org.projectlombok:lombok'
    annotationProcessor 'org.projectlombok:lombok'
    annotationProcessor 'org.mapstruct:mapstruct-processor:1.4.2.Final'
    testAnnotationProcessor 'org.mapstruct:mapstruct-processor:1.4.2.Final'
  }
  compileJava {
    options.compilerArgs += [
            '-Amapstruct.suppressGeneratorTimestamp=true',
            '-Amapstruct.suppressGeneratorVersionInfoComment=true',
            '-Amapstruct.verbose=true'
    ]
  }

  使用方式

Entity定义:

@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {
    private String name;
    private String sex;
    private int age;
    private String username;
    private String password;
}

DTO定义：

@Data
@AllArgsConstructor
@NoArgsConstructor
public class UserDTO {
    private String name;
    private String sex;
    private String age;
    private String username;
    private String address
}

定义转换接口：

@Mapper
public class UserConverter{
    ViewConverter INSTANCE = Mappers.getMapper(UserConverter.class);
    @Mappings({
            @Mapping(source = "name", target = "name"),
            @Mapping(source = "sex", target = "sex"),
            @Mapping(target = "age", expression= "java(String.valueOf(age))"),
            @Mapping(source = "username", target = "username"),
            @Mapping(target = "username", ignore=true),
    })
    UserDTO domainToDto(User view);
}

测试：

public class test{
    public static void main(String[] args){
        User user = UserConverter.INSTANCE.domainToDto(dto);
    }
}