@Mapper @Mapper错误不存在源参数

Question

我一直在把我的项目从spring转移到Spring，并且引入了嵌入式tomcat，我需要做一些调整，我必须做的只是我在我的老项目中所面临的问题，我有Mapper接口。

当我编译项目时，它就会出现错误。

错误：(12，5) java:源参数.中不存在名为"schoolId“的属性。

我有很多关于它的搜索，有人说lombok依赖项放置在pom中，我试着在map-struct依赖项之前和之后放置它，但是错误仍然存在。

以下是我的类

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以下是我面临的错误

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Answer 1

我认为您应该在文件中重新订购、、lombok、和mapstruct依赖项，这样就可以了。

严格的订货应该是这样的

1. lombok
2. mapstruct

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Answer 2

@Shermeen您能分享您配置的代码吗？

所以我们交叉验证一下。我还要加上这个例子，请检查一下。

结构

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EntityMapper.java

public interface EntityMapper<D, E> {
  E toEntity(D dto);
  D toDTO(E entity);
  List<E> toEntity(List<D> dtoList);
  List<D> toDTO(List<E> entityList);
}

UserMapper.java

import com.ecommerce.auth_service.domain.external_db.User;
import com.ecommerce.auth_service.domain.external_db.dto.UserDTO;
import org.mapstruct.Mapper;
import org.mapstruct.Mapping;

import java.util.UUID;

@Mapper(componentModel = "spring", uses = {UserMapper.class})
public interface UserMapper extends EntityMapper<UserDTO, User> {

  @Mapping(source = "user_id", target = "user")

  default User fromId(UUID id) {
    if (id == null)
      return null;
    User user = new User();
    user.setUserId(id);
    return user;
  }
}

UserMapperImpl.java

import com.ecommerce.auth_service.domain.external_db.User;
import com.ecommerce.auth_service.domain.external_db.dto.UserDTO;
import com.ecommerce.auth_service.domain.external_db.mapper.UserMapper;
import org.springframework.stereotype.Component;

import java.util.ArrayList;
import java.util.List;

@Component
public class UserMapperImpl implements UserMapper {
  @Override
  public User toEntity(UserDTO dto) {
    if (dto == null)
      return null;

    User user = new User();
    user.setUserId(dto.getUserId());
    user.setUsername(dto.getUsername());
    user.setEmail(dto.getEmail());
    user.setPassword(dto.getPassword());
    user.setPhoneNo(dto.getPhoneNumber());
    user.setStatus(dto.getStatus());
    user.setStore(dto.getStoreId());
    user.setAuthority(dto.getAuthority());
    user.setPrivileges(dto.getAuthority().getPrivileges());

    return user;
  }

  @Override
  public UserDTO toDTO(User entity) {
    if (entity == null) {
      return null;
    }

    UserDTO userDTO = new UserDTO();

    userDTO.setUserId(entity.getUserId());
    userDTO.setUsername(entity.getUsername());
    userDTO.setEmail(entity.getEmail());
    userDTO.setPassword(entity.getPassword());
    userDTO.setPhoneNumber(entity.getPhoneNo());
    userDTO.setStatus(entity.getStatus());
    userDTO.setStoreId(entity.getStore());

    entity.getAuthority().setPrivileges(entity.getPrivileges());
    userDTO.setAuthority(entity.getAuthority());

    userDTO.setCreatedBy(entity.getCreatedBy());
    userDTO.setCreatedDate(entity.getCreatedDate());
    userDTO.setModifiedBy(entity.getModifiedBy());
    userDTO.setModifiedDate(entity.getModifiedDate());

    return userDTO;
  }

  @Override
  public List<User> toEntity(List<UserDTO> dtoList) {
    if (dtoList == null || dtoList.isEmpty())
      return null;
    List<User> userList = new ArrayList<>(dtoList.size());
    for (UserDTO userDTO : dtoList) {
      userList.add(toEntity(userDTO));
    }
    return userList;
  }

  @Override
  public List<UserDTO> toDTO(List<User> entityList) {
    if (entityList == null)
      return null;
    List<UserDTO> userDTOList = new ArrayList<>(entityList.size());
    for (User user : entityList) {
      userDTOList.add(toDTO(user));
    }
    return userDTOList;
  }
}

Answer 3

我对此有着最深刻的体会。在我的示例中，我没有在pom.xml中声明任何pom.xml，我只是在pom中添加了依赖项，如下所示：

        <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>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

只需重新排序，并将lombok依赖项向上移动，问题就会得到修正：

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <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>
        </dependency>