I am following the following document for implementing a mapper interface: MapStruct- Baeldung for Employee and EmployeeDTO.

Here is my Employee Class:

public class Employee {
private int id;
private String name;
// getters and setters
}

Here is my EmployeeDTO class:

public class EmployeeDTO {
private int employeeId;
private String employeeName;
// getters and setters
}

Here is my Mapper code:

@Mapper
public interface EmployeeMapper {
@Mapping(target="employeeId", source="entity.id")
@Mapping(target="employeeName", source="entity.name")
EmployeeDTO employeeToEmployeeDTO(Employee entity);

@Mapping(target="id", source="dto.employeeId")
@Mapping(target="name", source="dto.employeeName")
Employee employeeDTOtoEmployee(EmployeeDTO dto);
}

I am getting "Can't find related attribute" by hovering over entity.id. entity.name, dto.employeeId and dto.employeeName.

Why is it so?. It is working fine if I am removing the dot operation on entity and dto and just writing the fields name.

CodePudding user response：

I replicated the same it is working fine for me with dot operator. Maybe try adding the annotationProcessorPaths section to the configuration part of the maven-compiler-plugin plugin present in the baeldung document

This plugin given in the document:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.5.1</version>
    <configuration>
        <source>1.8</source>
        <target>1.8</target>
        <annotationProcessorPaths>
            <path>
                <groupId>org.mapstruct</groupId>
                <artifactId>mapstruct-processor</artifactId>
                <version>1.4.2.Final</version>
            </path>
        </annotationProcessorPaths>
    </configuration>
</plugin>

Try if it helps

CodePudding user response：

put @Entity above Employee and EmployeeDTO class

CodePudding user response：

don't forget to use @Data on the EmployeeDTO class and @Entity on Employee class