public static int compare_date(String DATE1, String DATE2) {

DateFormat df = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
try {
Date dt1 = df.parse(DATE1);
Date dt2 = df.parse(DATE2);
if (dt1.getTime() > dt2.getTime()) {
System.out.println("dt1 在dt2前");
return -1;
} else if (dt1.getTime() < dt2.getTime()) {
System.out.println("dt1在dt2后");
return 1;
} else {
return 0;
}
} catch (Exception exception) {
exception.printStackTrace();
}
return 0;
}