package com.tianbo.util.Date;

import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeParseException;
import java.util.Date;

public final class DateUtil {
    private static Date currentDate = new Date();
    private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
    private static SimpleDateFormat timesdf = new SimpleDateFormat("yyyyMMddHHmmss");

    public static  String getToday(){
        return sdf.format(currentDate);
    }
    public static String getDDTM(){
        return timesdf.format(currentDate);
    }

    public static Date formatByyyyyMMddHHmmss(String dateStr) throws DateTimeParseException{
        //毫秒级的去掉
        if(dateStr.length()>14){
            dateStr= dateStr.substring(0,14);
        }
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
        LocalDateTime dateTime = LocalDateTime.parse(dateStr, formatter);
        return convertLDTToDate(dateTime);
    }

    //LocalDateTime转换为Date
    public static Date convertLDTToDate(LocalDateTime time) {
        return Date.from(time.atZone(ZoneId.systemDefault()).toInstant());
    }

}