Question

我已经为以下问题苦苦挣扎了几个小时，但我不知道该如何使它起作用：

Spring映射器，以便将数据库响应转换为DTO：

@Mapper(componentModel = "spring")
public interface ITeamResponseToDtoMapper {

    TeamResponseDTO toDto(TeamResponse teamResponse);

}

TeamResponse类：

@Data
@NoArgsConstructor
public class TeamResponse {

    private Map<String, List<NameAndType>> teamList;
}

NameAndType类：

@Data
@NoArgsConstructor
@AllArgsConstructor(access = AccessLevel.PUBLIC)
public class NameAndType{

    private String name;
    private String type;
    private String team;
}

TeamResponseDTO类：

@Data
@NoArgsConstructor
public class TeamResponseDTO {

    private Map<String, List<NameAndTypeDTO >> teamList;
}

NameAndTypeDTO类：

@Data
@NoArgsConstructor
@AllArgsConstructor(access = AccessLevel.PUBLIC)
public class NameAndTypeDTO {

    private String name;
    private String type;
    private String team;
}

基本上，“ NameAndType”和“ NameAndTypeDTO”是相同的，为什么转换失败？

error: Can't map property "java.util.Map<java.lang.String,java.util.List<com.microservices.teamservice.dataobjects.NameAndType>> teamList" to "java.util.Map<java.lang.String,java.util.List<com.microservices.teamservice.api.dataobjects.NameAndTypeDTO>> teamList". Consider to declare/implement a mapping method:

Answer 1

我认为您需要显式添加方法来映射整个类链。在您的示例中，以下应该起作用：


@Mapper(componentModel = "spring")
public interface ITeamResponseToDtoMapper {

    TeamResponseDTO toDto(TeamResponse teamResponse);

    List<NameAndTypeDTO> natListToDTO(List<NameAndType> natList);

    NameAndTypeDTO nameAndTypeToDTO(NameAndType nameAndType);

}

致谢， WiPu

Java Map的Spring映射器

1 个答案: