Set Date format using Apache POI

问题

I want to set date in date format in excel file with Apache POI. The value will set in such a manner so that in Address Bar it will show in mm/dd/YYYY and in cell it will show in dd-mmm (Date in numeric and Month in String like 01-Jan). Will you please help me in this situation?

回答1:

You can apply a HSSFCellStyle to the cell you need to fill. Here some code snippets from my past work, it's not intact but shows the basic idea:

HSSFRow row = sheet.createRow(0);
HSSFCell cell = row.createCell((short) 0);
cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);

SimpleDateFormat datetemp = new SimpleDateFormat("yyyy-MM-dd");
Date cellValue = datetemp.parse("1994-01-01 12:00");
cell.setCellValue(cellValue);

//binds the style you need to the cell.
HSSFCellStyle dateCellStyle = wb.createCellStyle();
short df = wb.createDataFormat().getFormat("dd-mmm");
dateCellStyle.setDataFormat(df);
cell.setCellStyle(dateCellStyle);

More infomation about date format in JDK, you should read this: http://docs.oracle.com/javase/6/docs/api/java/text/SimpleDateFormat.html

来源：https://stackoverflow.com/questions/14314620/set-date-format-using-apache-poi