计算文章发表的天数是几天后

public class DateUtil {


private static final long ONE_MINUTE = 60000L;
private static final long ONE_HOUR = 3600000L;
private static final long ONE_DAY = 86400000L;
private static final long ONE_WEEK = 604800000L;


private static final String ONE_SECOND_AGO = "秒前";
private static final String ONE_MINUTE_AGO = "分钟前";
private static final String ONE_HOUR_AGO = "小时前";
private static final String ONE_DAY_AGO = "天前";
private static final String ONE_MONTH_AGO = "月前";
private static final String ONE_YEAR_AGO = "年前";


public static String format(Date date) {
long delta = new Date().getTime() - date.getTime();
if (delta < 1L * ONE_MINUTE) {
long seconds = toSeconds(delta);
return (seconds <= 0 ? 1 : seconds) + ONE_SECOND_AGO;
}
if (delta < 45L * ONE_MINUTE) {
long minutes = toMinutes(delta);
return (minutes <= 0 ? 1 : minutes) + ONE_MINUTE_AGO;
}
if (delta < 24L * ONE_HOUR) {
long hours = toHours(delta);
return (hours <= 0 ? 1 : hours) + ONE_HOUR_AGO;
}
if (delta < 48L * ONE_HOUR) {
return "昨天";
}
if (delta < 30L * ONE_DAY) {
long days = toDays(delta);
return (days <= 0 ? 1 : days) + ONE_DAY_AGO;
}
if (delta < 12L * 4L * ONE_WEEK) {
long months = toMonths(delta);
return (months <= 0 ? 1 : months) + ONE_MONTH_AGO;
} else {
long years = toYears(delta);
return (years <= 0 ? 1 : years) + ONE_YEAR_AGO;
}
}


private static long toSeconds(long date) {
return date / 1000L;
}


private static long toMinutes(long date) {
return toSeconds(date) / 60L;
}


private static long toHours(long date) {
return toMinutes(date) / 60L;
}


private static long toDays(long date) {
return toHours(date) / 24L;
}


private static long toMonths(long date) {
return toDays(date) / 30L;
}


private static long toYears(long date) {
return toMonths(date) / 365L;
}


public static void main(String[] args) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:m:s");
Date date = format.parse("2016-12-26 14:03:00");
System.out.println(format(date));
// 当前时间
Calendar time = Calendar.getInstance();
time.setTime(new Date());
System.out.println(time.toString());







// 记录的时间2016-12-26 14:00


}

}

@RequestMapping("getComment")
public SimpleMsg getComment(Page page, Integer objId, Integer type) throws ParseException {
List<Map> comments = null;
try {
DateUtil date=new DateUtil();
comments = commentService.getCommentListByPage(objId, page, type);
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:m:s");  
Date date1 ;
String create_Time;
Map map = null;
if(comments !=null && comments.size() > 0){
for(int i=0;i<comments.size();i++){
date1 = format.parse(comments.get(i).get("createTime").toString());  
create_Time=date.format(date1);
comments.get(i).put("createTime", create_Time );
}
}else{
log.info("获取评论数据:" + Msg.NO_DATA);
return new DataMsg(Code.SUCCESS);

}
} catch (Exception e) {
log.error("获取评论数据失败,comments="+comments);
e.printStackTrace();
}
return new DataMsg(Code.SUCCESS, Msg.OK, comments);
}