计算时间差样例

	/**
	 * 时间字符串转换为与当前的时间差
	 * @author Sigua.Huang
	 * @return 
	 * @throws ParseException 
	 * @date 2018年4月9日
	 */
	public static String WithCurrentTime(String timeStr) throws ParseException {
		System.out.println(timeStr);
		String withCurrentTime = null;
		SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		Date date = dateFormat.parse(timeStr);
		long startTime = dateFormat.parse(dateFormat.format(date)).getTime();
		System.out.println(dateFormat.format(new Date()));
		long endTime = dateFormat.parse(dateFormat.format(new Date())).getTime();
		System.out.println("startTime:"+startTime);
		System.out.println("endTime:"+endTime);
		System.out.println("endTime-startTime:"+(endTime-startTime));
		long years = (endTime-startTime)/(1000l*60l*60l*24l*365l);
		System.out.println("years----------"+years);
		if( years>=1 ){
			withCurrentTime = years + "年前 ";
		}else{
			long months = (endTime-startTime)/(1000l*60l*60l*24l*30l);
			System.out.println("months----------"+months);
			if( months>=1 ){
				withCurrentTime = months + "个月前 ";
			}else{
				long days = (endTime-startTime)/(1000l*60l*60l*24l);
				System.out.println("days----------:"+days);
				if(days>=1){
					withCurrentTime = days + "天前 ";
				}else{
					int hours = (int)((endTime-startTime)/(1000*60*60));
					System.out.println("hours----------"+hours);
					if(hours>=1){
						withCurrentTime = hours + "个小时前 ";
					}else{
						int minutes = (int) ((endTime-startTime)/(1000*60));
						System.out.println("minutes----------"+minutes);
						if(minutes>=1){
							withCurrentTime = minutes + "分钟前 ";
						}else{
							withCurrentTime = "一分钟内";
						}
					}
				}
			}
		}
		return withCurrentTime;
	}
	public static void main(String[] args) throws ParseException {
//		String withCurrentTime = WithCurrentTime("2018-03-19 09:44:00");
//		System.out.println(withCurrentTime);
		String withCurrentTime1 = WithCurrentTime("2018-04-10 08:08:00");
		System.out.println(withCurrentTime1);
	}