Spring Boot File Upload

// File Upload
@PostMapping("/file")
public boolean fileUpload(@RequestBody MultipartFile[] files) {
    return fileService.upload(files);
}

// Upload
public boolean upload(MultipartFile[] files) {
    private String filePath = "C:/tmp/file";
    for (MultipartFile file: files) {
        // Get the file name
        String orginalName = file.getOriginalFilename();
        assert orginalName != null;
        String fileName = orginalName.substring(orginalName.lastIndexOf("\\") + 1);
 
        // Create a folder
        File uploadPathFolder = new File(path);
        if(!uploadPathFolder.exists()) {
           	uploadPathFolder.mkdirs();
        }
 
        // Create a unique ID
        UUID uuid = UUID.randomUUID();
 
        // Specify the file path to be saved
        String saveFileName String.format("%s__%s", uuid.toString(), FileName);
        String orgPathFile = String.format("%s%s%s", filePath, File.separator, saveFileName);
 
        Path savePath = Paths.get(orgPathFile);
 
        try {
            file.transferTo(savePath); // actual save
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return true;
}