java.text.SimpleDateFormat df = new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
java.util.Date d1 = df.parse("2004-04-04 00:00:00");
java.util.Date d2 = df.parse("2004-04-05 00:00:00");
long Days = (d2.getTime()-d1.getTime())/(3600*1000);
System.out.println(Days);结果:24
java.util.Date d1 = df.parse("2004-04-04 00:00:00");
java.util.Date d2 = df.parse("2004-04-05 00:00:00");
long Days = (d2.getTime()-d1.getTime())/(3600*1000);
System.out.println(Days);结果:24
我的都是24小时