我从此来源https://github.com/springframeworkguru/spring5-mvc-rest/tree/vendor-api下载了应用程序
而且我对MapStruct有问题。
@Mapper
public interface CategoryMapper {
CategoryMapper INSTANCE = Mappers.getMapper(CategoryMapper.class);
CategoryDTO categoryToCategoryDTO(Category category);
}
@Data
public class CategoryDTO {
private Long id;
private String name;
}
域类:
@Data
@Entity
public class Category {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String name;
}
服务等级:
@Service
public class CategoryServiceImpl implements CategoryService {
private final CategoryMapper categoryMapper;
private final CategoryRepository categoryRepository;
public CategoryServiceImpl(CategoryMapper categoryMapper, CategoryRepository categoryRepository) {
this.categoryMapper = categoryMapper;
this.categoryRepository = categoryRepository;
}
}
在pom.xml依赖项中,我仅粘贴了两个:
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<org.mapstruct.version>1.2.0.CR2</org.mapstruct.version>
</properties>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-jdk8</artifactId>
<version>${org.mapstruct.version}</version>
</dependency>
和插件:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<annotationProcessorPaths>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
</path>
<path>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${org.mapstruct.version}</version>
</path>
</annotationProcessorPaths>
<compilerArgs>
<compilerArg>
-Amapstruct.defaultComponentModel=spring
</compilerArg>
</compilerArgs>
</configuration>
</plugin>
描述:
Parameter 0 of constructor in
guru.springfamework.services.CategoryServiceImpl required a bean of type 'guru.springfamework.api.v1.mapper.CategoryMapper' that could not be found.
行动:
Consider defining a bean of type 'guru.springfamework.api.v1.mapper.CategoryMapper' in your configuration.
我认为在我的Intellij批注@Mapper中,不要为mapper创建一个bean。
我没有从John GitHub更改代码。
任何想法?
我试图将路径生成的源更改为目标,但这无济于事
感谢帮助。
最佳答案
我通过做解决了错误
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<annotationProcessorPaths>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
</path>
<path>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${org.mapstruct.version}</version>
</path>
</annotationProcessorPaths>
<compilerArgs>
<compilerArg>
-Amapstruct.defaultComponentModel=spring
</compilerArg>
</compilerArgs>
</configuration>
</plugin>
关于spring - MapStruct-@Mapper注释不会创建bean,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/47109827/