JAVA] Excel - POI (XSSFWorkbook Example)
Descrição
POI 아파치 소프트웨어 재단에서 만든 라이브러리로 Microsoft Office 파일을 자바 언어로 읽고 쓰는 기능 제공한다. 주로 Word, Excel, Power Point 파일을 지원한다. POI라이브러리를 사용하여 Excel을 다루어보자. Workbook 종류 HSSF : Excel 2007 하위버전(.xls) 파일 포맷을 사용할 때 사용 XSSF : Excel 2007 (.xlsx) 파일 포맷을 사용할 때 사용 SXSSF : 대용량 엑셀 파일을 출력할 때 사용 XSSF, SXSSF 차이 XSSF - 읽기, 쓰기가 가능하다. - 메모리에 파일데이터를 쌓아두고 사용하기 때문에 용량이 큰 경우 Out Of Memory 에러가 발생한다. SXSSF - 쓰기만 가능하다. - 임시파일을 중간중간 생성하여..
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