importjava.sql.Timestamp； 导入Java.text.date format； 导入Java.text.parse exception； 导入Java.text.simple date format； importjava.util.Calendar； importjava.util.Date； importorg.Apache.com mons.lang3. time.date format utils； /***类名： DateUtil
*班级说明：时间操作工具
*@version
*/
公共类日期实用工具{/* * *生成ISO-8601规范的时间格式
*@paramdate
*@return
*/
publicstaticstringformatiso 8601 datestring {
string pattern=’ yyyy-mm-DD ‘ t ‘ hh : mm : ss.sssz ‘； returndateformatutils.format (date，pattern )；
}/***获取反向时间戳
*@return
*/
publicstaticlonggetcurrentreversetime ((longlong time=system.current time millis ) *1000000calculateutil.getnext ) ) 9000000
}/***获取原始时间戳
*@paramreverseTime
*@return
*/
publicstaticlongrecoverreversetime (longreversetime ) longlong time=long.max _ value-reverse time； 返回长时间/1000000；
(}/***生成页面的普通展示时间
*@paramdate
*@return
*/
publicstaticstringformatnormaldatestring {
string pattern=’ yyyy-mm-ddhh : mm : ss ‘； returndateformatutils.format (date，pattern )；
}/***日期转换为字符串yyyy-MM-dd
*
*@paramdate
*@return
*/
publicstaticstringgetshotdate (datedate ) if ) date==null ) {return ‘ )；
}返回数据(date，’ yyyy-MM-dd ‘；
}/***将日期转换为字符串格式进行自定义
*
*@paramdate
*@paramf
*@return
*/
publicstaticstringdatestr (datedate，String f ) if ) date==null ) {return ‘ )；
}
简单数据格式=newsimpledateformatformat (f；
stringstr=format.format (日期)； 返回str；
}/***获取当前日期
*@return
*/
公共静态数据获取新
calendar cal=calendar.getinstance (；
Date currDate=cal.getTime (； returncurrDate；
}/***准确获取当前日期至毫秒
*@return
*/
publicstatictimestampgetnowinmillis (
timestamptimestamep=new timestamp (get now ().getTime ) )； returntimeStamep；
} publicstaticdategetdatebystrtime (字符串数据，字符串格式) )
simpledateformatsdf=newsimpledateformat； try{returnSDF.parse(datestr )；
}catch(parseexceptione ) {
e .打印堆栈跟踪(；
}返回空值；
(/**
* 计算两个日期之间相差的天数
*@paramdate1
*@paramdate2
*@returndate1>date2时结果<0, date1=date2时结果=0, date2>date1时结果>0*/
public static intdaysBetween(Date date1, Date date2, String format){
DateFormat sdf=newSimpleDateFormat(format);
Calendar cal=Calendar.getInstance();try{
Date d1=sdf.parse(DateUtil.dateStr(date1, format));
Date d2=sdf.parse(DateUtil.dateStr(date2, format));
cal.setTime(d1);long time1 =cal.getTimeInMillis();
cal.setTime(d2);long time2 =cal.getTimeInMillis();return Integer.parseInt(String.valueOf((time2 – time1) / 86400000L));
}catch(ParseException e) {
e.printStackTrace();
}return 0;
}/*** 计算两个日期之间相差的小时数
*@paramdate1
*@paramdate2
*@return
*/
public static inthoursBetween(Date date1, Date date2) {
DateFormat sdf= new SimpleDateFormat(“yyyyMMdd”);
Calendar cal=Calendar.getInstance();try{
Date d1= sdf.parse(DateUtil.dateStr(date1, “yyyyMMdd”));
Date d2= sdf.parse(DateUtil.dateStr(date2, “yyyyMMdd”));
cal.setTime(d1);
cal.setTime(d1);long time1 =cal.getTimeInMillis();
cal.setTime(d2);long time2 =cal.getTimeInMillis();return Integer.parseInt(String.valueOf((time2 – time1) / 3600000L));
}catch(ParseException e) {
e.printStackTrace();
}return 0;
}/*** 计算两个日期相差的时间*/
public static voidgetBetweenDate () {
String dateStart= “2017111520”;
String dateStop= “2017111620”;
SimpleDateFormat format= new SimpleDateFormat(“yyyyMMddHH”);
Date d1= null;
Date d2= null;try{
d1=format.parse(dateStart);
d2=format.parse(dateStop);//毫秒ms
long diff = d2.getTime() -d1.getTime();long diffSeconds = diff / 1000 % 60;long diffMinutes = diff / (60 * 1000) % 60;long diffHours = diff / (60 * 60 * 1000) % 24;long diffDays = diff / (24 * 60 * 60 * 1000);
System.out.print(“两个时间相差：”);
System.out.print(diffDays+ ” 天, “);
System.out.print(diffHours+ ” 小时, “);
System.out.print(diffMinutes+ ” 分钟, “);
System.out.print(diffSeconds+ ” 秒.”);
}catch(Exception e) {
e.printStackTrace();
}
}/*** 计算两个日期之间相差的小时数
*@paramdate1
*@paramdate2
*@returndate1>date2时结果<0, date1=date2时结果=0, date2>date1时结果>0*/
public static inthoursBetweenByDateStr(Date date1, Date date2) {
DateFormat sdf=new SimpleDateFormat(“yyyyMMddHH”);
Calendar cal=Calendar.getInstance();try{
Date d1= sdf.parse(DateUtil.dateStr(date1,”yyyyMMddHH”));
Date d2= sdf.parse(DateUtil.dateStr(date2,”yyyyMMddHH”));
cal.setTime(d1);long time1 =cal.getTimeInMillis();
cal.setTime(d2);long time2 =cal.getTimeInMillis();return Integer.parseInt(String.valueOf(((time2 – time1) / 3600000L)));
}catch(ParseException e) {
e.printStackTrace();
}return 0;
}/*** 计算两个日期之间相差的分钟数
*@paramdate1
*@paramdate2
*@returndate1>date2时结果<0, date1=date2时结果=0, date2>date1时结果>0*/
public static intminuteBetweenByDateStr(Date date1, Date date2) {
DateFormat sdf=new SimpleDateFormat(“yyyyMMddHHmm”);
Calendar cal=Calendar.getInstance();try{
Date d1= sdf.parse(DateUtil.dateStr(date1,”yyyyMMddHHmm”));
Date d2= sdf.parse(DateUtil.dateStr(date2,”yyyyMMddHHmm”));
cal.setTime(d1);long time1 =cal.getTimeInMillis();
cal.setTime(d2);long time2 =cal.getTimeInMillis();return Integer.parseInt(String.valueOf(((time2 – time1) / 60000L)));
}catch(ParseException e) {
e.printStackTrace();
}return 0;
}/*** 计算两个日期之间相差的秒数
*@paramdate1
*@paramdate2
*@returndate1>date2时结果<0, date1=date2时结果=0, date2>date1时结果>0*/
public static intsecondBetweenByDateStr(Date date1, Date date2) {
DateFormat sdf=new SimpleDateFormat(“yyyyMMddHHmmss”);
Calendar cal=Calendar.getInstance();try{
Date d1= sdf.parse(DateUtil.dateStr(date1, “yyyyMMddHHmmss”));
Date d2= sdf.parse(DateUtil.dateStr(date2, “yyyyMMddHHmmss”));
cal.setTime(d1);long time1 =cal.getTimeInMillis();
cal.setTime(d2);long time2 =cal.getTimeInMillis();return Integer.parseInt(String.valueOf(((time2 – time1) / 1000L)));
}catch(ParseException e) {
e.printStackTrace();
}return 0;
}public static voidmain(String[] args) {
System.out.println(hoursBetweenByDateStr(getDateByStrTime(“2018010223”, “yyyyMMddHH”), getDateByStrTime(“2018010323”, “yyyyMMddHH”)));
System.out.println(minuteBetweenByDateStr(getDateByStrTime(“201801052359”, “yyyyMMddHHmm”), getDateByStrTime(“201801060000”, “yyyyMMddHHmm”)));//2.活动结束时间>0 ( 默认2018年1月5号 20:30结束)
if( DateUtil.minuteBetweenByDateStr (DateUtil.getDateByStrTime(“201801111348″,”yyyyMMddHHmm”), DateUtil.getNow()) > 0){
System.out.println(DateUtil.minuteBetweenByDateStr (DateUtil.getDateByStrTime(“201801111348″,”yyyyMMddHHmm”), DateUtil.getNow()));
}else{
System.out.println(“时间未结束”);
}
System.out.println(DateUtil.secondBetweenByDateStr(DateUtil.getDateByStrTime(“20180110150200″,”yyyyMMddHHmmss”), DateUtil.getNow()));
}
}