3장 2) 등록

web / PostsApiController.class

@RequiredArgsConstructor
@RestController
public class PostsApiController {

    private final PostsService postsService;

    @PostMapping("/api/v1/posts")
    public Long save(@RequestBody PostsSaveRequestDto requestDto){
        return postsService.save(requestDto);
    }
}

weblayer 계층에 있는 Controller, 홈페이지에서 등록한 정보를 가져온다.

 

web / dto / PostsSaveRequestDto

package com.sogang.book.springboot.web.dto;


import com.sogang.book.springboot.domain.posts.Posts;
import lombok.Builder;
import lombok.Getter;
import lombok.NoArgsConstructor;

@Getter
@NoArgsConstructor
public class PostsSaveRequestDto {
    private String title;
    private String content;
    private String author;


    @Builder
    public PostsSaveRequestDto(String title, String content, String author) {
        this.title = title;
        this.content = content;
        this.author = author;
    }

    public Posts toEntity(){
        return Posts.builder()
                .title(title)
                .content(content)
                .author(author)
                .build();
    }
}

 

service / posts / PostsService.class

@RequiredArgsConstructor
@Service

public class PostsService {
    private final PostsRepository postsRepository;

    @Transactional
    public Long save(PostsSaveRequestDto requestDto){
        return postsRepository.save(requestDto.toEntity()).getId();
    }
}

ServiceLayer 계층에 있는 service, ApiController를 통해 얻어온 정보를 Repository로 보내준다.