判断字符串时间大小

    public static int comparedate(String Date1, String Date2) {        DateFormat df = new SimpleDateFormat("yyyy-MM-dd");        try {            Date data1 = df.parse(Date1);            Date data2 = df.parse(Date2);            if (data1 .getTime()>data2 .getTime()) {                System.out.println("Date1在Date2后");                return 1;            } else if (data1.getTime()<data2.getTime()){                System.out.println("Date1在Date2前");                return -1;            } else {                System.out.println("Date1与Date2相等");                return 0;            }        } catch (Exception exception) {            exception.printStackTrace();        }        return 0;    }