POI的使用 [JAVA_Apache]POI套件的使用_產出EXCEL文件_儲存格的樣式使用方法(CellStyle) 使用儲存格 設定為日期格式
public static void training5() throws IOException {
Workbook wb = new HSSFWorkbook();
//or Workbook wb = new XSSFWorkbook();
CreationHelper createHelper = wb.getCreationHelper();
Sheet sheet = wb.createSheet("new sheet");
// Create a row
Row row = sheet.createRow(0);
// as a date.
Cell cell = row.createCell(0);
cell.setCellValue(new Date());
CellStyle cellStyle = wb.createCellStyle();
cellStyle.setDataFormat(
createHelper.createDataFormat().getFormat("m/d/yy h:mm"));
cell = row.createCell(1);
cell.setCellValue(new Date());
cell.setCellStyle(cellStyle);
//you can also set date as java.util.Calendar
cell = row.createCell(2);
cell.setCellValue(Calendar.getInstance());
cell.setCellStyle(cellStyle);
// Write the output to a file
FileOutputStream fileOut = new FileOutputStream("workbook.xls");
wb.write(fileOut);
fileOut.close();
}
public static void training6() throws IOException {
Workbook wb = new HSSFWorkbook();
// or Workbook wb = new XSSFWorkbook();
CreationHelper createHelper = wb.getCreationHelper();
Sheet sheet = wb.createSheet("new sheet");
// Create a row
Row row = sheet.createRow(0);
Cell cell = row.createCell(0);
// 第一種：日期格式
cell.setCellValue(new Date());
CellStyle cellStyle = wb.createCellStyle();
DataFormat format = wb.createDataFormat();//
cellStyle.setDataFormat(format.getFormat("yyyy年m月d日"));
cell.setCellStyle(cellStyle);
// 第二種：保留兩位小數格式
cell = row.createCell(1);
cell.setCellValue(1.2);
CellStyle cellStyle2 = wb.createCellStyle();
cellStyle2.setDataFormat(HSSFDataFormat.getBuiltinFormat("0.00"));
cell.setCellStyle(cellStyle2);
// 第三種：貨幣格式
cell = row.createCell(2);
cell.setCellValue(20000);
CellStyle cellStyle3 = wb.createCellStyle();
DataFormat format3 = wb.createDataFormat();
cellStyle3.setDataFormat(format3.getFormat("$#,##0"));
cell.setCellStyle(cellStyle3);
// 第四種：百分比格式
cell = row.createCell(3);
cell.setCellValue(20);
CellStyle cellStyle4 = wb.createCellStyle();
cellStyle4.setDataFormat(HSSFDataFormat.getBuiltinFormat("0.00%"));
cell.setCellStyle(cellStyle4);
// 第五种：中文大寫格式
cell = row.createCell(4);
cell.setCellValue(20000);
CellStyle cellStyle5 = wb.createCellStyle();
DataFormat format5 = wb.createDataFormat();
cellStyle5.setDataFormat(format5.getFormat("[DbNum2][$-804]0"));
cell.setCellStyle(cellStyle5);
// 第六種：科學格式
cell = row.createCell(5);
cell.setCellValue(20000);
CellStyle cellStyle6 = wb.createCellStyle();
cellStyle6.setDataFormat(HSSFDataFormat.getBuiltinFormat("0.00E+00"));
cell.setCellStyle(cellStyle6);
// 第七種:自訂格式
cell = row.createCell(6);
cell.setCellValue(-20000);
CellStyle cellStyle7 = wb.createCellStyle();
DataFormat format7 = wb.createDataFormat();
cellStyle7.setDataFormat(format7.getFormat("$#,##0.00_ ;[red](-$#,##0.00)"));
cell.setCellStyle(cellStyle7);
// Write the output to a file
FileOutputStream fileOut = new FileOutputStream("workbook.xls");
wb.write(fileOut);
fileOut.close();
}格式可找在excel裡的儲存格樣式->自訂 如圖
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