Springboot - 파일 업로드(백엔드)

// 
#file.uploadFolder=/root/uploadFiles/
// 
file.uploadFolder=d://uploadFiles/

// 
spring.servlet.multipart.max-file-size=50Mb
spring.servlet.multipart.max-request-size=50Mb

/**
 *
 Controller 
 *
  Controller
 * @Author MengMeng 
 * @Date 2018/10/25 
 * @version: 0.1
 * @since JDK 1.80_144
 */
@Controller
@RequestMapping("/file")
public class FileController {
    @Autowired
    private HttpServletRequest request;
    
    @Autowired
    private FileService fileService;
    
    @Value("${file.uploadFolder}")
    private String uploadFolder;

    // 
    @RequestMapping(value="/upload/{id}", method = RequestMethod.POST)
    @ResponseBody
    public Map uploadImg(@RequestParam("file") MultipartFile file,HttpServletRequest request,@PathVariable String id) {
        Map resultMap = new LinkedHashMap();
    	String contentType = file.getContentType();
    	//  
        String oldName = file.getOriginalFilename();
    	//System.out.println(oldName);
    	//  ， jpeg,png
        String suffixName = oldName.substring(oldName.lastIndexOf("."));
        //System.out.println(" ：" + suffixName);
        //  
    	SimpleDateFormat df = new SimpleDateFormat("yyyyMMdd-HHmmss");
    	String time = df.format(new Date());
    	String[] Name = oldName.split("\\.");
    	String fileName = time + "-" + Name[0] + suffixName;
    	//System.out.println(fileName);
    	
    	// 
    	String filePath = uploadFolder;
    	
    	FileSource filesource = new FileSource();
    	filesource.setFilename(fileName);
    	fileService.save(filesource,filePath,fileName);
    	
    	 try {
             FileUtil.uploadFile(file.getBytes(), filePath, fileName);
             //System.out.println(" ！");
             resultMap.put("status", 200);
             resultMap.put("message", " ！");
         } catch (Exception e) {
        	    // TODO: handle exception
             resultMap.put("status", 500);
             resultMap.put("message", " ！");
         }
         // json
         return resultMap;
    }

}

@Service
public class FileServiceImpl implements FileService {

     @Autowired
     private FileRepository fileRepository;
	
     /**
     *   
     * 
 
     * @author MengMeng 
     * @param filesource	 
     * @param filesource	 
     * @param fileName		 
     * @Date Created date: 2018/10/25
     * @return	void
     */
	@Override
	public void save(FileSource filesource, String filePath, String fileName) {
		// TODO Auto-generated method stub
		String path = filePath + fileName;
		filesource.setPath(path);
		filesource.setId(UUIDUtils.getUUID32());
		filesource.setStatus(1);
		filesource.setUpdatetime(new Date());
		
		fileRepository.save(filesource);
	}
}

/**
 *  spring bean
 * @author MengMeng 
 * Created date: 2018/10/10 
 * @version: 0.1
 * @since JDK 1.80_144
 */
public class FileUtil {

    public static void uploadFile(byte[] file, String filePath, String fileName) throws Exception { 
        File targetFile = new File(filePath);  
        if(!targetFile.exists()){    
            targetFile.mkdirs();    
        }       
        FileOutputStream out = new FileOutputStream(filePath+fileName);
        out.write(file);
        out.flush();
        out.close();
    }

}