俩个日期相减获取 02:02:10 格式 天 小时 分钟

  Date d1 = vo.getAllocationtime();

  Date d2 = new Date();

  long diff = d2.getTime() - d1.getTime();//这样得到的差值是微秒级别

  long days = diff / (1000 * 60 * 60 * 24);

  long hours = (diff-days*(1000 * 60 * 60 * 24))/(1000* 60 * 60);

  long minutes = (diff-days*(1000 * 60 * 60 * 24)-hours*(1000* 60 * 60))/(1000* 60);

  if(days>0) {

  vo.setDayHourMinuteDCL(""+days+":"+hours+":"+minutes);

  }else {

  vo.setDayHourMinuteDCL(""+hours+":"+minutes);

  }