import java.sql.Timestamp;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import org.apache.commons.lang3.time.DateFormatUtils;
/**
* 类名称：DateUtil
* 类描述： 时间操作工具
* @version
*/
public class DateUtil {
/**
* 生成ISO-8601 规范的时间格式
* @param date
* @return
*/
public static String formatISO8601DateString(Date date){
String pattern = "yyyy-MM-dd'T'HH:mm:ss.SSSZ";
return DateFormatUtils.format(date, pattern);
}
/**
* 获取反时间戳
* @return
*/
public static Long getCurrentReverseTime(){
long longTime = System.currentTimeMillis()*1000000 + CalculateUtil.getNext(999999);
return Long.MAX_VALUE - longTime;
}
/**
* 获取原时间戳
* @param reverseTime
* @return
*/
public static Long recoverReverseTime(Long reverseTime){
long longTime = Long.MAX_VALUE - reverseTime;
return longTime/1000000;
}
/**
* 生成页面普通展示时间
* @param date
* @return
*/
public static String formatNormalDateString(Date date){
String pattern = "yyyy-MM-dd HH:mm:ss";
return DateFormatUtils.format(date, pattern);
}
/**
* 日期转换为字符串 yyyy-MM-dd
*
* @param date
* @return
*/
public static String getShotDate(Date date) {
if (date == null){
return "";
}
return dateStr(date, "yyyy-MM-dd");
}
/**
* 日期转换为字符串 格式自定义
*
* @param date
* @param f
* @return
*/
public static String dateStr(Date date, String f) {
if (date == null){
return "";
}
SimpleDateFormat format = new SimpleDateFormat(f);
String str = format.format(date);
return str;
}
/**
* 获得当前日期
* @return
*/
public static Date getNow() {
Calendar cal = Calendar.getInstance();
Date currDate = cal.getTime();
return currDate;
}
/**
* 获得当前日期，精确到毫秒
* @return
*/
public static Timestamp getNowInMillis() {
Timestamp timeStamep = new Timestamp(getNow().getTime());
return timeStamep;
}
public static Date getDateByStrTime(String dateStr, String format) {
SimpleDateFormat sdf = new SimpleDateFormat(format);
try {
return sdf.parse(dateStr);
} catch (ParseException e) {
e.printStackTrace();
}
return null;
}
/**
* 计算两个日期之间相差的天数
* @param date1
* @param date2
* @return date1>date2时结果<0, date1=date2时结果=0, date2>date1时结果>0
*/
public static int daysBetween(Date date1, Date date2, String format){
DateFormat sdf=new SimpleDateFormat(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
* @param date1
* @param date2
* @return
*/
public static int hoursBetween(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 void getBetweenDate () {
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
* @param date1
* @param date2
* @return date1>date2时结果<0, date1=date2时结果=0, date2>date1时结果>0
*/
public static int hoursBetweenByDateStr(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
* @param date1
* @param date2
* @return date1>date2时结果<0, date1=date2时结果=0, date2>date1时结果>0
*/
public static int minuteBetweenByDateStr(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
* @param date1
* @param date2
* @return date1>date2时结果<0, date1=date2时结果=0, date2>date1时结果>0
*/
public static int secondBetweenByDateStr(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 void main(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()));
}
}
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