比较两个date的大小，精确到分

public static int compareTo(Date date,Date date1) {
		String pattern="yyyy-MM-dd HH:mm:ss";//精确到分
        //String pattern="yyyy-MM-dd HH:mm:ss.ms";//精确到秒
		SimpleDateFormat format = new SimpleDateFormat(pattern);
		String s = format.format(date);
		String s1 = format.format(date1);
		return s.compareTo(s1);
	}

Test

public static void main(String[] args) throws InterruptedException {
		Date date = new Date();
		System.out.println(date);
		Thread.sleep(3000); 
		Date date1 = new Date();
		System.out.println(date1);
		System.out.println(compareTo(date,date1));
	}