보드컨트롤러

package org.smart.board.controller;

import org.smart.board.entity.Board;
import org.smart.board.service.BoardService;
import org.smart.board.util.PageNavigator;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.security.core.annotation.AuthenticationPrincipal;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.FileCopyUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.List;
import java.util.UUID;

@Controller
@RequestMapping("/board")
public class BoardController {
@Autowired
private BoardService boardService;

// 설정파일읽어오기 :
@Value("${spring.servlet.multipart.location}")
private String uploadPath; // c:/upload

/**
* 게시글 목록 요청
* @param model
* @return
*/
@GetMapping("/boardList")
public String boardList(@RequestParam(defaultValue="1") int currentPage,
@RequestParam(defaultValue="title") String searchItem,
@RequestParam(defaultValue="") String searchWord,
Model model) {
// DB에서 저장된 전체 글 개수를 얻어옴
int totalRecordCount = boardService.getBoardCount(searchItem, searchWord); //
PageNavigator navi = new PageNavigator(currentPage, totalRecordCount);
int countPerPage = navi.getCountPerPage();

int srow = 1 + (currentPage-1) * countPerPage;
int erow = countPerPage + (currentPage-1) * countPerPage;

List<Board> boardList = boardService.findAll(srow, erow, searchItem, searchWord);

model.addAttribute("boardList", boardList);
model.addAttribute("searchItem", searchItem);
model.addAttribute("searchWord", searchWord);
model.addAttribute("navi", navi);
model.addAttribute("srow", srow);
model.addAttribute("erow", erow);

return "board/boardList";
}

/**
* 게시글 등록 화면 요청
* @return
*/
@GetMapping("/boardWrite")
public String boardWrite() {

return "board/boardWrite";
}

/**
* 파일을 첨부해서 올릴 때 그것까지 처리하는 메소드
* @param board
* @param user
* @return
*/
@PostMapping("/boardWrite")
public String boardWrite(Board board, MultipartFile attachFile, @AuthenticationPrincipal UserDetails user) {
// 파일이 첨부 됐다면
if(!attachFile.isEmpty()) {
// 업로드 폴더가 존재하는지 확인 : 없다면 생성
File path = new File(uploadPath);

if(!path.isDirectory())
path.mkdirs();

String originalfile = attachFile.getOriginalFilename();
// bts.jpg, beautiful.gif, somefile

// savedfile을 만듦
String uuid = UUID.randomUUID().toString();

String filename; // 확장자를 뺀 파일명
String ext; // 확장자
String savedfile;

int index = originalfile.indexOf('.');
filename = originalfile.substring(0, index); // bts

// 확장자가 없는 경우
if(index == -1) {
ext = "";
}
// 확장자가 있는 경우 bts.jpg : 3위치에 .이 있음
else {
ext = originalfile.substring(index+1); // jpg
}

savedfile = filename + "_" + uuid + "." + ext;

// 저 위의 경로에 savedfile을 저장하고, or, sa ==> board에 setting한다.
File serverFile = null; // 경로 + savedfile
serverFile = new File(uploadPath+"/" + savedfile);

// 파일저장하기
try {
attachFile.transferTo(serverFile);
} catch (Exception e) {
e.printStackTrace();
}

board.setOriginalfile(originalfile);
board.setSavedfile(savedfile);
} // 파일이 업로드 됐을 때 할 작업 끝

board.setUsrid(user.getUsername());
boardService.insert(board);

return "redirect:/board/boardList";
}

/**
* 글 자세히 보기 화면 요청
* @param boardseq
* @param model
* @return
*/
@GetMapping("/boardDetail")
public String boardDetail(Long boardseq, Model model) {
// 1) DB에서 boardseq에 해당하는 하나의 글을 질의해옴
// 1-1) 조회수 증가해야함
int hitcount = boardService.hitCount(boardseq); // 조회수 증가
Board board = boardService.findOne(boardseq);

// 2) Model에 저장
model.addAttribute("board", board);

// 3) view로 forward
return "board/boardDetail";
}

/**
* 게시글 수정을 위한 화면 요청
* @return
*/
@GetMapping("/boardUpdate")
public String boardUpdate(Long boardseq, Model model) {
Board board = boardService.findOne(boardseq);

model.addAttribute("board", board);

return "board/boardUpdate";
}

@PostMapping("/boardUpdate")
public String boardUpdate(Board board){
System.out.println(board);// usrid, boardseq, title, content

// DB
board.setUsrid("aaa"); // 완료된 후 걷어낼 코드
boardService.update(board);

return "redirect:/board/boardList";
}
@GetMapping("/boardDelete")
public String boardDelete(Long boardseq) {
boardService.delete(boardseq);

return "redirect:/board/boardList";
}

@GetMapping("/download")
public String download(Long boardseq, HttpServletResponse response) {
Board board = boardService.findOne(boardseq);

// 파일명
String originalfile = board.getOriginalfile();
String savedfile = board.getSavedfile();
// 실제 파일이 저장된 Full Path
String fullPath = uploadPath + "/" + savedfile;

try {
response.setHeader("Content-Disposition", " attchment;filename="
+ URLEncoder.encode(originalfile, "UTF-8"));
} catch(UnsupportedEncodingException e) {
e.printStackTrace();
}

// 다운로드 처리
FileInputStream filein = null;
ServletOutputStream fileout = null;

try {
filein = new FileInputStream(fullPath);
fileout = response.getOutputStream();

FileCopyUtils.copy(filein, fileout);

fileout.close();
filein.close();
} catch(Exception e){
e.printStackTrace();
}
return null;
}
}