如何在Spring引导分页中返回to而不是实体？

Question

我的DTO不同于实体。如何返回带分页的DTO而不是实体，同时仍显示所有页的信息？

@GetMapping("/{name}")
public Page<Student> getStudent(@PathVariable(value = "name") String name, Pageable pageable){
     Page <Student> page = studentService.getStudent(name, pageable);
     return page;
}

public Page<Student> getStudent(String name, Pageable pageable){
    Page<Student> students = studentRepository.findAllByName(name, pageable);
    return students;
}

@Repository
public interface StudentRepository extends 
    PagingAndSortingRepository<Student, Long> {
    Page<Student> findAllByName(String name, Pageable pageable);
}

@Data
public class StudentDTO extends ResourceSupport {
   Long _id;
   String name;
}

@Entity
@Data
@NoArgsConstructor(force = true, access = AccessLevel.PUBLIC)
public class Student {

    @Id
    @GeneratedValue
    private Long id;
    private String name;
    private Long grade;
}

Answer 1

StudentDTO类可以有一个带有Student参数的构造函数。

public StudentDTO(Student student) {
    this._id = student.getId();
    this.name = student.getName();
}

然后可以在Page对象上调用map。

Page<StudentDTO> dtoPage = page.map(student -> new StudentDTO(student));