Java import using FastExcel supports multiple time formats

public void testDump() throws ParserException, ReadException {
	Workbook workBook;
	workBook = (new File(""));
	();
	Sheet s;
	s = (0);
	("SHEET:"+s);
	for (int i = (); i <= (); i++) {
	(i+"#");
	for (int j = (); j <=(); j++) {
		(","+(i, j));
	}
	();
	}
	();
}

/**
  * Cooperation start date*
  */
@ExcelProperty(index  = 22,converter = )
private Date cooperationDate;

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import org.;
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/**
  * Date format converter
  */
public class ExcelDateConverter implements Converter<Date> {
    private static final Logger log = ();
    // Define all date formats to try    SimpleDateFormat[] formats = {
            new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"),
            new SimpleDateFormat("yyyy/MM/dd HH:mm:ss"),
            new SimpleDateFormat("yyyy/MM/dd"),
            new SimpleDateFormat("yyyy-MM-dd"),
            new SimpleDateFormat("yyyy/MM"),
            new SimpleDateFormat("yyyy/MM"),
            new SimpleDateFormat("yyyyMMdd")
    };

    @Override
    public Class<Date> supportJavaTypeKey() {
        return ;
    }

    @Override
    public CellDataTypeEnum supportExcelTypeKey() {
        return ;
    }


    @Override
    public Date convertToJavaData(ReadCellData<?> cellData, ExcelContentProperty contentProperty,
                                  GlobalConfiguration globalConfiguration) throws Exception {
        String cellValue = "";
        if (().equals()) {
            long cellIntValue = ().longValue();
            if (cellIntValue > 19900100) {
                try {
                    // 1. The first analysis is passed on to a date in the form of a number, which is like yyyyMMdd                    SimpleDateFormat originalFormat = new SimpleDateFormat("yyyyMMdd");
                    return ((cellIntValue));
                } catch (Exception e) {
                    ("exception when parse numerical time with format yyyyMMdd");
                    cellValue=(cellIntValue);
                }
            }

            // 2. The second analysis, excel starts from 1900, and finally calculates the target date by calculating the number of days between the 1900 years            LocalDate localDate = (1900, 1, 1);

            //Excel has some strange bug, causing a 2-date difference in dates            localDate = (cellIntValue - 2);

            // Convert to ZonedDateTime (if time zone information is required)            ZonedDateTime zonedDateTime = (());
            return (());
        } else if (().equals()) {
            // 3. The third analysis            Date date = null;
            cellValue = ();
            for (SimpleDateFormat format : formats) {
                try {
                    date = (cellValue);
                    if (date != null) {
                        // This step is to format the date into the format that Java expects                        return date;
                    }
                } catch (Exception e) {
                    // If there is an exception, continue to parse after catching the exception                    ((), e);
                }
            }
        }
        // If there is an exception, continue to parse after catching the exception        throw new UnsupportedOperationException("The current operation is not supported by the current converter." + cellValue);
    }
 

    @Override
    public WriteCellData<?> convertToExcelData(Date value, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) throws Exception {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        String dateValue = (value);
        return new WriteCellData<>(dateValue);
    }	
}