你泛起山川，碧波里的人不是我。——《慕容雪》
首先按照官方文档引入GAV，但要注意和lombok有版本冲突问题，因此我选择这个版本：
这里放上主要配置
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| <properties>
<java.version>1.8</java.version>
<lombok.version>1.18.10</lombok.version>
<mapstruct.version>1.3.0.Final</mapstruct.version>
</properties>
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
<scope>provided</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct</artifactId>
<version>${mapstruct.version}</version>
</dependency>
</dependencies>
<plugins>
<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.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
</path>
<path>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${mapstruct.version}</version>
</path>
</annotationProcessorPaths>
</configuration>
</plugin>
</plugins>
|
然后我准备两个实体类进行转换
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| package com.ruben.simplescaffold.entity;
import lombok.*;
import lombok.experimental.Accessors;
@Data
@ToString
@Builder
@Accessors(chain = true)
@NoArgsConstructor
@AllArgsConstructor
@EqualsAndHashCode(callSuper = true)
public class UserDetail extends BaseEntity<UserDetail> {
private static final long serialVersionUID = 1L;
private String username;
private String password;
}
|
以及
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| package com.ruben.simplescaffold.pojo.vo;
import java.io.Serializable;
import lombok.Data;
@Data
public class UserVO implements Serializable {
private static final long serialVersionUID = -6541515410807361292L;
private String uname;
private String pwd;
}
|
开始编写Mapper，注意此处注解导入的依赖为mapStruct的
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| package com.ruben.simplescaffold.mapper.mapstruct;
import org.mapstruct.Mapper;
import org.mapstruct.Mapping;
import org.mapstruct.factory.Mappers;
import com.ruben.simplescaffold.entity.UserDetail;
import com.ruben.simplescaffold.pojo.vo.UserVO;
@Mapper
public interface MapUserMapper {
MapUserMapper INSTANCE = Mappers.getMapper(MapUserMapper.class);
@Mapping(source = "username", target = "uname")
@Mapping(source = "password", target = "pwd")
UserVO convertPoToVo(UserDetail userDetail);
}
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当然如果你想注入到spring容器中，可以指定@Mapper(componentModel = "spring")
然后编写测试类测试一下
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| package com.ruben.simplescaffold;
import org.junit.Test;
import org.junit.jupiter.api.Assertions;
import com.ruben.simplescaffold.entity.UserDetail;
import com.ruben.simplescaffold.mapper.mapstruct.MapUserMapper;
import com.ruben.simplescaffold.pojo.vo.UserVO;
public class MapUserMapperTest {
@Test
public void convertPoToVoTest() {
UserVO userVO = MapUserMapper.INSTANCE.convertPoToVo(UserDetail.builder().username("ruben").password("vampire").build());
Assertions.assertEquals("ruben", userVO.getUname());
Assertions.assertEquals("vampire", userVO.getPwd());
}
}
|
测试通过
并且可以在这里看到我们生成的代码
我们还可以下载idea插件
下载了，我们就可以按住ctrl鼠标移动到@Mapping注解的source和target上，还能点进去
