이지정(M) Spring JPA and H2 Datebase #8
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mjj111
approved these changes
Jul 14, 2024
| public void setEnrollments(List<Enrollment> enrollments) { | ||
| this.enrollments = enrollments; | ||
| } | ||
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| @ManyToOne | ||
| @JoinColumn(name="course_id") | ||
| @JsonBackReference |
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@JsonBackReference 를 사용하신 이유가 있을실까요?
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| @Repository | ||
| public interface EnrollmentRepository extends JpaRepository<Enrollment, Integer> { | ||
| List<Enrollment> findByStudentStudentId(@Param("studentId") int studentId); |
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| public Enrollment addEnrollment(int studentId, int courseId){ | ||
| Student student = studentRepository.findById(studentId).orElseThrow(()->new NoSuchElementException()); | ||
| Course course = courseRepository.findById(courseId).orElseThrow(()->new NoSuchElementException()); |
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new NoSuchElementException() 은 에러 발생시 어떤 결과를 어디에 보여줄까요?
| private String email; | ||
| public Student() {} | ||
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| @OneToMany(mappedBy = "student") |
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(FetchType.LAZY FetchType.EAGER )패치 타입에 대해 알아보시면 좋을 것 같아요!
| return studentService.getEnrollments(studentId); | ||
| } | ||
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| @PostMapping("/{studentId}/{courseId}") |
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POST 요청이라면 파라미터 말구 body 값으로 전달하는게 어떨까요?!
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