MapStruct集成进行Bean的转换

MapStruct集成

依赖

<mapstruct.version>1.5.2.Final</mapstruct.version>
<lombok.version>1.18.16</lombok.version>

<!--MapStruct相关依赖-->
<dependency>
    <groupId>org.mapstruct</groupId>
    <artifactId>mapstruct</artifactId>
    <version>${mapstruct.version}</version>
</dependency>
<dependency>
    <groupId>org.mapstruct</groupId>
    <artifactId>mapstruct-processor</artifactId>
    <version>${mapstruct.version}</version>
    <scope>compile</scope>
</dependency>


<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.8.1</version>
    <configuration>
        <source>1.8</source>
        <target>1.8</target>
        <encoding>UTF-8</encoding>

        <annotationProcessorPaths>
            <path>
                <groupId>org.mapstruct</groupId>
                <artifactId>mapstruct-processor</artifactId>
                <version>${mapstruct.version}</version>
            </path>
            <path>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
            </path>
            <path>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok-mapstruct-binding</artifactId>
                <version>0.2.0</version>
            </path>
        </annotationProcessorPaths>
    </configuration>
</plugin>

实体类

@Data
@EqualsAndHashCode(callSuper = false)
public class Member {
    private Long id;
    private String username;
    private String password;
    private String nickname;
    private Date birthday;
    private String phone;
    private String icon;
    private Integer gender;

}

@Data
@EqualsAndHashCode(callSuper = false)
public class MemberDto {
    private Long id;
    private String username;
    private String password;
    private String nickname;
    //与PO类型不同的属性
    private String birthday;
    //与PO名称不同的属性
    private String phoneNumber;
    private String icon;
    private Integer gender;
}

编写mapper接口

@Mapper
public interface MemberMapper {

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

    @Mapping(source = "phone", target = "phoneNumber")
    @Mapping(source = "birthday", target = "birthday", dateFormat = "yyyy-MM-dd")
    MemberDto toDto(Member member);
    
   
    /**
     * 支持集合映射的功能
     * @param memberList
     * @return
     */
    @Mapping(source = "phone", target = "phoneNumber")
    @Mapping(source = "birthday", target = "birthday", dateFormat = "yyyy-MM-dd")
    List<MemberDto> toDtoList(List<Member> memberList);

}

使用

@RestController
@RequestMapping("/mapStruct")
public class MapStructController {

    @GetMapping("/baseMapping")
    public CommonResultVo<MemberDto> baseTest() {
        Member member = new Member();
        member.setBirthday(new Date());
        member.setPhone("13074076522");
        member.setGender(1);
        MemberDto memberDto = MemberMapper.INSTANCE.toDto(member);
        return CommonResultVo.success(memberDto);
    }
}

详细使用参考

https://juejin.cn/post/7026151729997561869?share_token=68a5864a-10f9-414d-a9b9-68da7bac1824