package org.yeshi.utils;

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


public class DateUtil {
	
	public static String dateDiff(String startTime, String endTime) {
		
		String datatime = 0 + "天" + 0 + "小时" + 0 + "分钟" ;
		SimpleDateFormat sd = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
		
		try {
			long ns = 1000;// 一秒钟的毫秒数
			long nm = 1000 * 60;// 一分钟的毫秒数
			long nh = 1000 * 60 * 60;// 一小时的毫秒数
			long nd = 1000 * 24 * 60 * 60;// 一天的毫秒数
			
			// 获得两个时间的毫秒时间差异
			long diff = sd.parse(endTime).getTime() - sd.parse(startTime).getTime();
		
			long day = diff / nd;// 计算差多少天
			long hour = diff % nd / nh;// 计算差多少小时
			long min = diff % nd % nh / nm;// 计算差多少分钟
			long sec = diff % nd % nh % nm / ns;// 计算差多少秒
			
			//System.out.println("时间相差：" + day + "天" + hour + "小时" + min + "分钟" + sec + "秒");
			
			datatime = day + "天" + hour + "小时" + min + "分钟" ;
			
		} catch (ParseException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		return datatime;
	}
	
	
	public static String dateDiff2(Date startTime, Date endTime) throws Exception{
		
		String datatime = 0 + "天" + 0 + "小时" + 0 + "分钟" ;
		
		long ns = 1000;// 一秒钟的毫秒数
		long nm = 1000 * 60;// 一分钟的毫秒数
		long nh = 1000 * 60 * 60;// 一小时的毫秒数
		long nd = 1000 * 24 * 60 * 60;// 一天的毫秒数
		
		// 获得两个时间的毫秒时间差异
		long diff = endTime.getTime() - startTime.getTime();
	
		long day = diff / nd;// 计算差多少天
		long hour = diff % nd / nh;// 计算差多少小时
		long min = diff % nd % nh / nm;// 计算差多少分钟
		
		
		datatime = day + "天" + hour + "小时" + min + "分钟" ;
			
		
		return datatime;
	}
	
	public String transferLongToDate(String dateFormat, Long millSec) {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date date = new Date(millSec);
        return sdf.format(date);
    }

	 public static void main(String[] args) {  
		 long a= 1529044851008L;
		 Long l = new Long(a);
		 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
	     Date date = new Date(l);
	     System.out.println(sdf.format(date));
		 new DateUtil().dateDiff(new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").format(new Date()), sdf.format(date));  
	 }  
}