import java.sql.Timestamp;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
public class DateTimeUtil {
public static Date formatDate(String str) throws ParseException {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return formatter.parse(str);
}
public static Date getDayStartTime(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
return cal.getTime();
}
public static boolean isZero(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
if (cal.get(Calendar.HOUR_OF_DAY) == 0 && cal.get(Calendar.MINUTE) == 0 && cal.get(Calendar.SECOND) == 0) {
return true;
}
return false;
}
public static Date getDayEndTime24(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH), 24, 0, 0);
return cal.getTime();
}
public static Date getDate(Date date, Integer time, Field field) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
switch (field) {
case YEAR:
cal.add(Calendar.YEAR, time);
break;
case MONTH:
cal.add(Calendar.MONTH, time);
break;
case DAY:
cal.add(Calendar.DAY_OF_MONTH, time);
break;
case HOURS:
cal.add(Calendar.HOUR_OF_DAY, time);
break;
case MINUTE:
cal.add(Calendar.MINUTE, time);
break;
case SECOND:
cal.add(Calendar.SECOND, time);
break;
}
return cal.getTime();
}
//17:29:13 09:02:12
public static Long getDifferTime(Date start, Date end, Field field) {
long time = start.getTime() - end.getTime();
switch (field) {
case DAY:
return time / (24 * 60 * 60 * 1000);
case HOURS:
return time / (60 * 60 * 1000);
case MINUTE:
return time / (60 * 1000);
case SECOND:
return time / (1000);
}
return null;
}
public static String getString(Date date, String pattern) {
SimpleDateFormat formatter = new SimpleDateFormat(pattern);
return formatter.format(date);
}
public static String format(Date date, String stly) {
String result = "";
String str = "yyyy-MM-dd HH:mm:ss";
if (stly != null && !stly.equals("")) str = stly;
try {
if (date != null) {
java.text.DateFormat df = new SimpleDateFormat(str);
result = df.format(date);
}
} catch (Exception e) {
}
return result;
}
public static Date parse(String dataStr, String pattern) {
SimpleDateFormat formatter = new SimpleDateFormat(pattern);
Date time = null;
try {
time = formatter.parse(dataStr);
} catch (ParseException e) {
}
return time;
}
public static List<Date> getCurrAgo(Date startTime, Date endTime) {
List<Date> result = new ArrayList<Date>();
Calendar tempStart = Calendar.getInstance();
tempStart.setTime(startTime);
tempStart.add(Calendar.DAY_OF_YEAR, 1);
tempStart.set(Calendar.HOUR_OF_DAY, 0);
tempStart.set(Calendar.SECOND, 0);
tempStart.set(Calendar.MINUTE, 0);
tempStart.set(Calendar.MILLISECOND, 0);
startTime = tempStart.getTime();
while (startTime.getTime() <= endTime.getTime()) {
result.add(tempStart.getTime());
tempStart.add(Calendar.DAY_OF_YEAR, 1);
startTime = tempStart.getTime();
}
return result;
}
/**
* 格式化Timestamp 为 yyyy-MM-dd HH:mm:ss
*/
public static String getDateTimeFromTimeStamp2(Timestamp _timestamp) {
if (null == _timestamp) {
return "";
}
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//定义格式，不显示毫秒
String str = df.format(_timestamp);
return str;
}
/**
* 格式化Timestamp 为 yyyy-MM-dd
*/
public static String getDateTimeFromTimeStamp(Timestamp _timestamp) {
if (null == _timestamp) {
return "";
}
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");//定义格式，不显示毫秒
String str = df.format(_timestamp);
return str;
}
/**
* 获取零点时间
*
* @param flag 0：获取当天0点，1：获取当天23:59:59
*/
public static Date getZeroTime(Date date, int flag) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int hour = cal.get(Calendar.HOUR_OF_DAY);
int minute = cal.get(Calendar.MINUTE);
int second = cal.get(Calendar.SECOND);
//时分秒（毫秒数）
long millisecond = hour * 60 * 60 * 1000 + minute * 60 * 1000 + second * 1000;
//凌晨00:00:00
cal.setTimeInMillis(cal.getTimeInMillis() - millisecond);
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
if (flag == 0) {
return cal.getTime();
} else if (flag == 1) {
//凌晨23:59:59
cal.setTimeInMillis(cal.getTimeInMillis() + 23 * 60 * 60 * 1000 + 59 * 60 * 1000 + 59 * 1000);
}
return cal.getTime();
}
/**
* 获取当前月份第一天0点
*/
public static Date getZeroTimeFirstDayOfMonth() {
Calendar cal = Calendar.getInstance();
cal.add(Calendar.MONTH, 0);
cal.set(Calendar.DAY_OF_MONTH, 1);//设置为1号,当前日期既为本月第一天
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
}
/**
* 获取当前月份最后一天23.59.59
*/
public static Date getZeroTimeLastDayOfMonth() {
//获取当前月最后一天
Calendar cal = Calendar.getInstance();
cal.set(Calendar.DAY_OF_MONTH, cal.getActualMaximum(Calendar.DAY_OF_MONTH));
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.SECOND, 59);
cal.set(Calendar.MILLISECOND, 59);
return cal.getTime();
}
/**
* 获取一天前的时间
*/
public static Date getOneDayAgo(Date date) throws Exception {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DAY_OF_MONTH, -1);
return cal.getTime();
}
public static enum Field {
YEAR,
MONTH,
DAY,
HOURS,
MINUTE,
SECOND
}
/**
*late日期-early日期
**/
public static int daysBetween(Date early, Date late) {
Calendar calst = Calendar.getInstance();
Calendar caled = Calendar.getInstance();
calst.setTime(early);
caled.setTime(late);
calst.set(Calendar.HOUR_OF_DAY, 0);
calst.set(Calendar.MINUTE, 0);
calst.set(Calendar.SECOND, 0);
caled.set(Calendar.HOUR_OF_DAY, 0);
caled.set(Calendar.MINUTE, 0);
caled.set(Calendar.SECOND, 0);
//得到两个日期相差的天数
return ((int) (caled.getTime().getTime() / 1000) - (int) (calst.getTime().getTime() / 1000)) / 3600 / 24;
}
public static Date addDays(Date date, Integer days) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.DAY_OF_MONTH, days);
return calendar.getTime();
}
public static String timeStamp2Date(String timestampString) {
Long timestamp = Long.parseLong(timestampString) * 1000;
return new SimpleDateFormat("yyyy-MM-dd").format(new Date(timestamp));
}
/**
* 得到两个日期之间查几天。
* @param date1
* @param date2
* @return
*/
public static int getOffsetIn2Date(Date date1, Date date2) {
long offsetNum = date1.getTime() - date2.getTime();
return ((Double)Math.ceil(offsetNum / (60 * 60 * 24 * 1000D))).intValue();
}
/**
* @Description //把时间戳转换为date
* @Param [s]
* @return
**/
public static Date stampToDate(long s){
Date date = new Date(s*1000);
return date;
}
/**
*
* @Description //时间date+周期days=得到相加后的日期
* @Param [date, days]
* @return
*
**/
public static Date dayAfter(Date date, int days) {
Calendar calendar = getZero(date);
calendar.add(Calendar.DAY_OF_MONTH, days);
return calendar.getTime();
}
public static Calendar getZero(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar;
}
// public static void main(String[] args) {
// String startProductionDate = DateTimeUtil.timeStamp2Date("1536049980");
// String endProductionDate = DateTimeUtil.timeStamp2Date("1536222780");
// System.out.println(endProductionDate);
// int days = DateTimeUtil.daysBetween(DateTimeUtil.parse(startProductionDate, "yyyy-MM-dd"), DateTimeUtil.parse(endProductionDate, "yyyy-MM-dd"));
// System.out.println(days);
// SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
// Date testDate=DateTimeUtil.dayAfter(new Date(),30);
// System.out.println(sdf.format(testDate));
// }
}