我正在使用Apache POI读取excel文件。无法读取日期。在excel中，日期格式2017-03-15 6:00(单元格format=custom) &使用poi，读数为42809.25

import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.io.FileInputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class ExcelReader {
    public static void main(String[] args) {
        try {
            FileInputStream file = new FileInputStream("path/to/your/excel/file.xlsx");
            Workbook workbook = new XSSFWorkbook(file);
            Sheet sheet = workbook.getSheetAt(0);
            Row row = sheet.getRow(0);
            Cell cell = row.getCell(0);

            if (cell.getCellType() == CellType.NUMERIC) {
                double numericValue = cell.getNumericCellValue();
                Date date = DateUtil.getJavaDate(numericValue);
                SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm");
                String formattedDate = dateFormat.format(date);
                System.out.println("Formatted Date: " + formattedDate);
            }
            
            workbook.close();
            file.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}