始终使用Apache poi在excel单元格中显示两个小数点

For example,

例如，

XSSFCellStyle style=(XSSFCellStyle) workbook.createCellStyle();
style.setDataFormat(workbook.createDataFormat().getFormat("#.##"));

productCell.setCellValue(12.4);
productCell.setCellType(Cell.CELL_TYPE_NUMERIC);
productCell.setCellStyle(style);

This displays 12.4 in the specified cell. It should be 12.40. The value 12 is displayed as 12. which is quite unnecessary.

这在指定的单元格中显示12.4。它应该是12.40。值12显示为12.这是非常不必要的。

If the value is 0 then, it displays a dot .. It should always display two decimal digits - 0.00, in this case regardless of the value being stored in a cell.

如果该值为0，则显示一个点。它应始终显示两个十进制数字 - 0.00，在这种情况下，无论存储在单元格中的值如何。

How to force excel to always show two decimal digits in a numeric cell?

如何强制excel始终在数字单元格中显示两位小数？

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I use one of the following styles to display numeric cells.

我使用以下样式之一来显示数字单元格。

XSSFColor commonColor = new XSSFColor(new java.awt.Color(240, 240, 240));
XSSFColor cellBorderColour = new XSSFColor(new java.awt.Color(0, 76, 153));

Font font = workbook.createFont();
font.setBoldweight(Font.BOLDWEIGHT_BOLD);
font.setColor(IndexedColors.DARK_BLUE.index);

XSSFCellStyle style = (XSSFCellStyle) workbook.createCellStyle();
style.setFillForegroundColor(commonColor);
style.setFillPattern(CellStyle.SOLID_FOREGROUND);
style.setAlignment(CellStyle.ALIGN_RIGHT);
style.setFont(font);

style.setBorderLeft(BorderStyle.HAIR);
style.setBorderColor(XSSFCellBorder.BorderSide.LEFT, cellBorderColour);
style.setBorderTop(BorderStyle.HAIR);
style.setBorderColor(XSSFCellBorder.BorderSide.TOP, cellBorderColour);
style.setBorderRight(BorderStyle.HAIR);
style.setBorderColor(XSSFCellBorder.BorderSide.RIGHT, cellBorderColour);
style.setBorderBottom(BorderStyle.DOUBLE);
style.setBottomBorderColor(cellBorderColour);

I applied some excel formulae to perform some calculations on numeric cells that are expected to be performed after applying a number format (rounding half up) on numeric cells.

我应用了一些excel公式来对数字单元格执行一些计算，这些数字单元格应该在数字单元格上应用数字格式（向上舍入一半）之后执行。

1 个解决方案

#1

In Excel formatting, a # means "place a digit here only if needed", but a 0 means "always place a digit here, even if it's an unnecessary 0". You can specify the data format in Apache POI exactly as you would in Excel itself. If you want the 0 digits to show up, then you need to use 0s as formatting digits. Try

在Excel格式化中，＃表示“仅在需要时将数字放在此处”，但0表示“始终在此处放置数字，即使它是不必要的0”。您可以在Apache POI中指定数据格式，就像在Excel本身中一样。如果要显示0位数，则需要使用0作为格式化数字。尝试

style.setDataFormat(workbook.createDataFormat().getFormat("0.00"));

This will make the value 0 show up as 0.00 and 12.4 as 12.40.

这将使值0显示为0.00和12.4显示为12.40。