[JAVA] 利用POI 建立excel的簡單範例

public void createWorkBook() throws IOException {

//建excel活頁簿
XSSFWorkbook workBook = new XSSFWorkbook();

//建第一個sheet，命名為 new sheet
XSSFSheet sheet = workBook.createSheet("first sheet");

// 建一row，在sheet上
Row row = sheet.createRow(0);

// 在row上建一個cell
Cell cell = row.createCell(0);

//設cell裡的值
cell.setCellValue("第一個cell");

// Or do it on one line.
row.createCell(1).setCellValue("第一列的第2個cell");
row.createCell(2).setCellValue(new Date());
row.createCell(3).setCellValue(true);
row.createCell(4).setCellValue(2);

//file命名為myExcekbook.xlsx
FileOutputStream fileOut = new FileOutputStream("d:/myExcekbook.xlsx");

// 把workBook寫進FileOutputStream
workBook.write(fileOut);
//關閉FileOutputStream
fileOut.close(); 


}