1、TimeUtils.java

package com.example.classwork;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class TimeUtils {
    //字串轉時間戳
    public static String getTime(String timeString){
        String timeStamp = null;
        SimpleDateFormat sdf = new
 
 SimpleDateFormat("yyyy年MM月dd日 hh:mm");
        Date d;
        try{
            d = sdf.parse(timeString);
            long l = d.getTime();
            timeStamp = String.valueOf(l);
        } catch(ParseException e){
            e.printStackTrace();
        }
        return timeStamp;
    }

    //時間戳轉字串
 

    public static String getStrTime(String timeStamp){
        String timeString = null;
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日 hh:mm");
        long  l = Long.valueOf(timeStamp);
        timeString = sdf.format(new Date(l));//單位秒
        return timeString;
    }
}