要创建显示该单元格当前日期的日期单元格,无涯教程可以使用Apache POI的样式函数根据日期对单元格进行格式化。 setDateformat()方法用于设置日期格式。看一个示例,在该示例中,将创建一个包含当前日期的单元格。
package poiexample; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.util.Date; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.CellStyle; import org.apache.poi.ss.usermodel.CreationHelper; import org.apache.poi.ss.usermodel.Row; import org.apache.poi.ss.usermodel.Sheet; import org.apache.poi.ss.usermodel.Workbook; public class DateCellExample { public static void main(String[] args) throws FileNotFoundException, IOException { Workbook wb = new HSSFWorkbook(); CreationHelper createHelper = wb.getCreationHelper(); try(OutputStream os = new FileOutputStream("Learnfk.xls")){ Sheet sheet = wb.createSheet("New Sheet"); Row row = sheet.createRow(0); Cell cell = row.createCell(0); CellStyle cellStyle = wb.createCellStyle(); cellStyle.setDataFormat( createHelper.createDataFormat().getFormat("d/m/yy h:mm")); cell = row.createCell(1); cell.setCellValue(new Date()); cell.setCellStyle(cellStyle); wb.write(os); }catch(Exception e) { System.out.println(e.getMessage()); } } }
输出:
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