Java Web Server Framework

TODOS

How To Use

Controller

@RestController
@RequestMapping("/api")
public class BoardController {
 @Autowired
 private BoardService boardService;
 @RequestMapping("/boards")
 public ResponseEntity<List<BoardDto.BoardResponseDto>> findAllBoards() {
 List<BoardDto.BoardResponseDto> dtoList = boardService.findAllBoards();
 return new ResponseEntity<>(dtoList, HttpStatus.OK);
 }
 @RequestMapping(value = "/boards/{id}", method = RequestMethod.GET)
 public ResponseEntity<?> findBoardById(@PathVariable(name = "id") Long id) {
 BoardDto.BoardResponseDto dto = boardService.findBoardById(id);
 return new ResponseEntity<>(dto, HttpStatus.OK);
 }
 @RequestMapping(value = "/boards", method = RequestMethod.POST)
 public ResponseEntity<?> addBoard(@RequestBody BoardDto.BoardRequestDto dto) {
 boardService.addBoard(dto);
 return new ResponseEntity<>(HttpStatus.OK);
 }
 @RequestMapping(value = "/boards/{id}", method = RequestMethod.PATCH)
 public ResponseEntity<?> updateBoardById(@PathVariable(name = "id", required = true) Long id,
 @RequestBody BoardDto.BoardRequestDto dto) {
 boardService.updateBoard(id, dto);
 return new ResponseEntity<>(HttpStatus.OK);
 }
 @RequestMapping(value = "/boards/{id}", method = RequestMethod.DELETE)
 public ResponseEntity<?> deleteBoardById(@PathVariable(name = "id") Long id) {
 boardService.deleteBoard(id);
 return new ResponseEntity<>(HttpStatus.OK);
 }
}

Service

@Service
public class BoardService {
 @Autowired
 private BoardRepository boardRepository;
 public List<BoardDto.BoardResponseDto> findAllBoards() {
 return boardRepository.findAll().stream().map(BoardDto.BoardResponseDto::new).collect(Collectors.toList());
 }
 public BoardDto.BoardResponseDto findBoardById(Long id) {
 Board board = boardRepository.findById(id);
 return new BoardDto.BoardResponseDto(board);
 }
 public void addBoard(BoardDto.BoardRequestDto dto) {
 Board board = Board.builder()
 .title(dto.getTitle())
 .contents(dto.getContents())
 .build();
 boardRepository.save(board);
 }
 public void updateBoard(Long id, BoardDto.BoardRequestDto dto) {
 Board board = boardRepository.findById(id);
 board.setTitle(dto.getTitle());
 board.setContents(dto.getContents());
 boardRepository.save(board);
 }
 public void deleteBoard(Long id) {
 boardRepository.deleteById(id);
 }
}

Entity

@Getter
@Entity
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public class Board {
 @Id
 @GeneratedValue(strategy = GenerationType.IDENTITY)
 private Long id;
 private String title;
 private String contents;
 @CreationTimestamp
 private LocalDateTime createdDateTime;
 @UpdateTimestamp
 private LocalDateTime updatedDateTime;
 @Builder
 public Board(String title, String contents) {
 this.title = title;
 this.contents = contents;
 }
 public void setTitle(String title) {
 this.title = title;
 }
 public void setContents(String contents) {
 this.contents = contents;
 }
}

Repository

public interface BoardRepository extends JpaRepository<Board, Long> {
 @Query("SELECT b FROM Board AS b ORDER BY b.id DESC")
 List<Board> findAllBoardsOrderByIdDesc();
}

DTO

public class BoardDto {
 @Getter
 @Setter
 public static class BoardResponseDto {
 private Long id;
 private String title;
 private String contents;
 private String createdDateTime;
 private String updatedDateTime;
 public BoardResponseDto(Board entity) {
 DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
 this.id = entity.getId();
 this.title = entity.getTitle();
 this.contents = entity.getContents();
 this.createdDateTime = entity.getCreatedDateTime().format(formatter);
 this.updatedDateTime = entity.getUpdatedDateTime().format(formatter);
 }
 }
 @Getter
 @Setter
 public static class BoardRequestDto {
 private String title;
 private String contents;
 }
}

Main Class

public class Application {
 public static void main(String[] args) {
 WasApplication.run(Application.class, args);
 }
}

Configuration Sample

@Configuration
public class WebConfig {
 @Bean
 public ObjectMapper objectMapper() {
 return new ObjectMapper();
 }
}