김현민 1주차 과제

src/main/java/doit/jpastudy2/repository/Grades.java

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+package doit.jpastudy2.repository;
+
+import jakarta.persistence.*;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import doit.jpastudy2.repository.Student;
+import java.util.List;
+
+@Entity
+@NoArgsConstructor
+@Getter
+public class Grades {
+    @Id
+    @GeneratedValue
+    private int gradeId;
+
+    private String subject;
+
+    @OneToMany(mappedBy="studentId")
+    private List<Student> students;
+
+    private String grade;
+}

src/main/java/doit/jpastudy2/repository/GradesRepository.java

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+package doit.jpastudy2.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface GradesRepository extends JpaRepository {
+
+    Grades findAllBySubject(String subject);
+}

src/main/java/doit/jpastudy2/repository/Student.java

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+package doit.jpastudy2.repository;
+
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.util.Date;
+
+@Entity
+@NoArgsConstructor
+@Getter
+public class Student {
+    @Id
+    private int studentId;
+    private String studentName;
+    private Date DateOfBirth;
+
+    public Student(int studentId, String studentName, Date dateOfBirth) {
+        this.studentId = studentId;
+        this.studentName = studentName;
+        this.DateOfBirth = dateOfBirth;
+    }
+}

src/main/java/doit/jpastudy2/repository/StudentRepository.java

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+package doit.jpastudy2.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import doit.jpastudy2.repository.Student;
+
+public interface StudentRepository extends JpaRepository<Student, Long> {
+
+    Student findByStudentId(String studentId);
+}