在poi-4.0.1中找不到符号变量Cell.CELL_TYPE_STRING

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

public class ExcelReader {
    public static void main(String[] args) {
        Workbook workbook = WorkbookFactory.create(new File("example.xlsx"));
        Sheet sheet = workbook.getSheetAt(0);
        
        for (Row row : sheet) {
            for (Cell cell : row) {
                if (cell.getCellTypeEnum() == CellType.STRING) {
                    String value = cell.getStringCellValue();
                    System.out.println("String value: " + value);
                } else if (cell.getCellTypeEnum() == CellType.NUMERIC) {
                    double value = cell.getNumericCellValue();
                    System.out.println("Numeric value: " + value);
                } else if (cell.getCellTypeEnum() == CellType.BOOLEAN) {
                    boolean value = cell.getBooleanCellValue();
                    System.out.println("Boolean value: " + value);
                }
            }
        }
        
        workbook.close();
    }
}