스프링 파일 업로드 학습 예제
스프링에서는 MultipartFile을 이용하여 손쉽게 파일 업로드가 가능하다.
실무에서는 오리지널 파일 이름과 고유한 저장 이름을 구분하여 저장해야 한다. => 중복방지
DB에는 파일의 경로만 저장하고, 실제 바이너리 파일은 스토리지(S3 등)에 저장한다.
파일을 다운로드 할 땐, Http Header에 Content Disposition, attachment; filename 포맷이 규약
핸들러에서 Response에 Resource 객체 활용한다.
UriUtils.encode 유틸로 편리하게 인코딩 가능
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