在Spring JPA中插入多对多单向关系

@Entity
public class Student {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    
    private String name;
    
    // 省略其他属性和方法
}

@Entity
public class Course {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    
    private String name;
    
    // 省略其他属性和方法
}

@Entity
public class Student {
    // 省略其他属性和方法
    
    @ManyToMany
    @JoinTable(name = "student_course",
            joinColumns = @JoinColumn(name = "student_id"),
            inverseJoinColumns = @JoinColumn(name = "course_id"))
    private Set<Course> courses;
    
    // 省略其他属性和方法
}

Student student1 = new Student();
student1.setName("John");

Student student2 = new Student();
student2.setName("Jane");

Course course1 = new Course();
course1.setName("Math");

Course course2 = new Course();
course2.setName("English");

student1.getCourses().add(course1);
student1.getCourses().add(course2);

student2.getCourses().add(course1);

studentRepository.save(student1);
studentRepository.save(student2);