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com.github.xiaoyuge5201.date.DateUtils Maven / Gradle / Ivy
package com.github.xiaoyuge5201.date;
import org.apache.commons.lang3.time.DateFormatUtils;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
/**
* @author xiaoyuge
*/
public class DateUtils {
/**
* 格式化时间按照某种格式
*
* @param date 日期
* @param pattern 格式化类型
* @return 格式化后的结果
*/
public static String formatDate(Date date, String pattern) {
if (date == null) {
date = new Date(System.currentTimeMillis());
}
if (pattern == null) {
pattern = "yyyy-MM-dd";
}
return DateFormatUtils.format(date, pattern);
}
/**
* 格式化日期返回YYYY-MM-DD
*
* @param date 时间
* @return 格式化的时间
*/
public static String defaultFormatYMD(Date date) {
return formatDate(date, "yyyy-MM-dd");
}
/**
* 格式化当前时间
*
* @return YYYY-MM-DD
*/
public static Date parseDateFormat() {
SimpleDateFormat fo = new SimpleDateFormat();
Date date = new Date(System.currentTimeMillis());
fo.applyPattern("yyyy-MM-dd");
try {
date = fo.parse(DateFormatUtils.format(date, "yyyy-MM-dd"));
} catch (Exception localException) {
}
return date;
}
/**
* 查看某一天是星期几
*
* @param date 日期
* @return 星期几
*/
public static String getWeekDayToWeekName(Date date) {
String[] dayNames = {"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"};
Calendar calendar = Calendar.getInstance();
if (date == null) {
date = new Date();
}
calendar.setTime(date);
int dayOfWeek = calendar.get(7);
return dayNames[(dayOfWeek - 1)];
}
/**
* 判断某个时间在两个时间之间
*
* @param srcDate 目标时间
* @param startDate 开始时间
* @param endDate 结束时间
* @return 判断结果
*/
public static boolean between(Date srcDate, Date startDate, Date endDate) {
if (startDate.after(srcDate)) {
return false;
}
if (endDate.before(srcDate)) {
return false;
}
return true;
}
/**
* 某个时间到当天时间的天数差
*
* @param overTime 日期
* @return 天数差
*/
public static String marginTimeFormat(Date overTime) {
String marginTimeFormat = "";
Calendar overDate = Calendar.getInstance();
overDate.setTime(overTime);
Calendar nowDate = Calendar.getInstance();
long seconds = (overDate.getTime().getTime() - nowDate.getTime().getTime()) / 1000L;
if (seconds <= 0L) {
return "过期";
}
long dayMargin = seconds / 86400L;
seconds -= dayMargin * 86400L;
long hourMargin = seconds / 3600L;
seconds -= hourMargin * 3600L;
long minuteMargin = seconds / 60L;
seconds -= minuteMargin * 60L;
if (dayMargin > 0L) {
marginTimeFormat = dayMargin + "天";
return marginTimeFormat;
}
if (hourMargin > 0L) {
marginTimeFormat = hourMargin + "小时";
return marginTimeFormat;
}
if (minuteMargin > 0L) {
marginTimeFormat = minuteMargin + "分钟";
return marginTimeFormat;
}
marginTimeFormat = "1分钟";
return marginTimeFormat;
}
/**
* 获取n个小时之后的时间
*
* @param date 日期
* @param h 小时数
* @return n个小时之后的时间
*/
public static Date getDateByHours(Date date, int h) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.HOUR_OF_DAY, h);
calendar.set(Calendar.MINUTE, 0);
return calendar.getTime();
}
/**
* 获得当天零时零分零秒
*
* @param date 时间
* @return 日期的0点0分
*/
public static Date initDateByDay(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);
return calendar.getTime();
}
/**
* 判断两个时间是否是同一个月
*
* @param date1 时间1
* @param date2 时间2
* @return 判断结果true/false
*/
public static boolean isSameMonth(Date date1, Date date2) {
Calendar cal = Calendar.getInstance();
cal.setTime(date1);
int year1 = cal.get(Calendar.YEAR);
int month1 = cal.get(Calendar.MONTH);
cal.setTime(date2);
int year2 = cal.get(Calendar.YEAR);
int month2 = cal.get(Calendar.MONTH);
return (year1 == year2) && (month1 == month2);
}
/**
* 获取两个时间相差的天数
*
* @param date1 时间1
* @param date2 时间2
* @return 相差的天数
*/
public static int getDaysOfDifference(Date date1, Date date2) {
Calendar cal = Calendar.getInstance();
cal.setTime(date1);
int d1 = cal.get(5);
cal.setTime(date2);
int d2 = cal.get(5);
if (d2 > d1) {
return d2 - d1 + 1;
}
return d1 - d2 + 1;
}
/**
* 获取当前是几号
*
* @return 当前是几号
*/
public static int getDayOfMonth() {
Calendar cal = Calendar.getInstance();
return cal.get(Calendar.DAY_OF_MONTH);
}
/**
* 获取某个月的总天数
*
* @param date
* @return
*/
public static int getDaysOfMonth(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.LONG, 1);
cal.set(Calendar.DATE, 1);
cal.add(Calendar.DATE, -1);
return cal.get(Calendar.DATE);
}
/**
* 获取当前月份的1号
*
* @return 当月1号的日期
*/
public static String getFirstDayOfCurrentMonth() {
Calendar cal = Calendar.getInstance();
SimpleDateFormat datef = new SimpleDateFormat("yyyy-MM-dd");
cal.set(5, 1);
Date beginTime = cal.getTime();
return datef.format(beginTime) + " 00:00:00";
}
/**
* 获取下个月的一号
*
* @return 下个月一号的日期
*/
public static String getNextMonthFirst() {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar lastDate = Calendar.getInstance();
lastDate.add(2, 1);
lastDate.set(5, 1);
return sdf.format(lastDate.getTime()) + " 00:00:00";
}
/**
* 获取某些天后的时间
*
* @param step 天数
* @return step天之后的日期
*/
public static Date getNextDateByStep(int step) {
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.DATE, step);
calendar.set(Calendar.HOUR_OF_DAY, calendar.get(Calendar.HOUR_OF_DAY));
calendar.set(Calendar.MINUTE, calendar.get(Calendar.MINUTE));
calendar.set(Calendar.SECOND, calendar.get(Calendar.SECOND));
return calendar.getTime();
}
/**
* 获取n个月后的时间
*
* @param step n个月
* @return 获取n个月后的时间
*/
public static String getYearAndMonthByStep(int step) {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM");
Calendar cal = Calendar.getInstance();
cal.add(Calendar.MONTH, step);
return format.format(cal.getTime());
}
/**
* 判断两个时间的先后顺序
*时间格式为yyyy-MM-dd hh:mm:ss
* @param date1 时间1
* @param date2 时间2
* @return 比较结果 为1： date1 在date2之前， 结果为-1 表示date1在date2之后， 为0表示两个是同一天
*/
public static int compareDateByYMDHMS(String date1, String date2) {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
try {
Date dt1 = df.parse(date1);
Date dt2 = df.parse(date2);
if (dt1.getTime() > dt2.getTime()) {
return 1;
} else if (dt1.getTime() < dt2.getTime()) {
return -1;
} else {
return 0;
}
} catch (Exception exception) {
exception.printStackTrace();
}
return 0;
}
/**
* 判断两个时间的先后顺序
*时间格式为yyyy-MM-dd
* @param date1 时间1
* @param date2 时间2
* @return 比较结果 为1： date1 在date2之前， 结果为-1 表示date1在date2之后， 为0表示两个是同一天
*/
public static int compareDateByYMD(String date1, String date2) {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
try {
Date dt1 = df.parse(date1);
Date dt2 = df.parse(date2);
if (dt1.getTime() > dt2.getTime()) {
return 1;
} else if (dt1.getTime() < dt2.getTime()) {
return -1;
} else {
return 0;
}
} catch (Exception exception) {
exception.printStackTrace();
}
return 0;
}
}
