ckt-label/src/main/java/com/gaotao/common/utils/GenDate.java

package com.gaotao.common.utils;

import java.time.LocalDate;
import java.time.temporal.ChronoUnit;

public class GenDate {
    public static String dateToJuLian(LocalDate currentDate) {
        LocalDate excelStartDate = LocalDate.of(1904, 1, 1);
        long days = ChronoUnit.DAYS.between(excelStartDate, currentDate);
        int excelDate = (int) days;
        return excelDate+"09";
    }
}