How to print particular student details by searching only firstName in postman using specification class?

Question

Unable to locate Attribute with the the given name [experience] on this ManagedType [com.studentManagement.model.Student]......this is error shown in console.

This is the code I did it in Specifcation class..

@Component
public class StudentSpecification {
    public Specification<Student> getStudents(Student request){

        return (root, query, criteriaBuilder) ->{

        List<Predicate> predicates = new ArrayList<>();
        if (request.getEmail() != null && !request.getEmail().isEmpty()) {
            predicates.add(criteriaBuilder.equal(root.get("email"), request.getEmail()));
        }
        if (request.getFirstName() != null && !request.getFirstName().isEmpty()) {
            predicates.add(criteriaBuilder.like(criteriaBuilder.lower(root.get("firstName")),
                    "%" + request.getFirstName().toLowerCase() + "%"));
        }
}

**Service Class**

public List getStudentList(Student request) {

        List<Student> students=studentRepository.findAll(studentSpecification.getStudents(request));
        return students;    
    }

I am expecting to print student details for particular student I searched

Answer 1

The error seems obvious enough.

Unable to locate Attribute with the the given name [experience] on this ManagedType [com.studentManagement.model.Student].

Your Student object class doesn't have an attribute named with experience.

Please check inside your student class and make sure you configure it correctly.