package com.zymotor.eutech.web.util;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
/**
* 日期工具类
*
* @author crazyang
*/
@Component
public class DateUtils {
/**
* 获得当前日期 yyyy-MM-dd HH:mm:ss
* 小写的hh取得12小时，大写的HH取的是24小时
* @return 2019-08-27 14:12:40
*/
public static StringgetCurrentTime() {
SimpleDateFormat df =new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date =new Date();
return df.format(date);
}
/**
* 获取系统当前时间戳
*
* @return 1566889186583
*/
public static StringgetSystemTime() {
String current = String.valueOf(System.currentTimeMillis());
return current;
}
/**
* 获取当前日期 yy-MM-dd
*
* @return 2019-08-27
*/
public static StringgetDateByString() {
Date date =new Date();
SimpleDateFormat sdf =new SimpleDateFormat("yyyy-MM-dd");
return sdf.format(date);
}
/**
* 得到两个时间差 格式yyyy-MM-dd HH:mm:ss
*
* @param start 2019-06-27 14:12:40
* @param end 2019-08-27 14:12:40
* @return 5270400000
*/
public static long dateSubtraction(String start, String end) {
SimpleDateFormat df =new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
try {
Date date1 = df.parse(start);
Date date2 = df.parse(end);
return date2.getTime() - date1.getTime();
}catch (ParseException e) {
e.printStackTrace();
return 0;
}
}
/**
* 得到两个时间差
*
* @param start 开始时间
* @param end 结束时间
* @return
*/
public static long dateTogether(Date start, Date end) {
return end.getTime() - start.getTime();
}
/**
* 转化long值的日期为yyyy-MM-dd HH:mm:ss.SSS格式的日期
*
* @param millSec 日期long值 5270400000
* @return 日期，以yyyy-MM-dd HH:mm:ss.SSS格式输出 1970-03-03 08:00:00.000
*/
public static StringtransferLongToDate(String millSec) {
SimpleDateFormat sdf =new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
Date date =new Date(Long.parseLong(millSec));
return sdf.format(date);
}
/**
* 获得当前日期 yyyy-MM-dd HH:mm:ss
*
* @return
*/
public static StringgetOkDate(String date) {
try {
if (StringUtils.isEmpty(date)) {
return null;
}
Date date1 =new SimpleDateFormat("EEE MMM dd HH:mm:ss Z yyyy", Locale.ENGLISH).parse(date);
//格式化
SimpleDateFormat sdf =new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return sdf.format(date1);
}catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* 获取当前日期是一个星期的第几天
*
* @return 2
*/
public static int getDayOfWeek() {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
return cal.get(Calendar.DAY_OF_WEEK) -1;
}
/**
* 判断当前时间是否在[startTime, endTime]区间，注意时间格式要一致
*
* @param nowTime 当前时间
* @param dateSection 时间区间 2018-01-08,2019-09-09
* @return
* @author jqlin
*/
public static boolean isEffectiveDate(Date nowTime, String dateSection) {
try {
String[] times = dateSection.split(",");
String format ="yyyy-MM-dd";
Date startTime =new SimpleDateFormat(format).parse(times[0]);
Date endTime =new SimpleDateFormat(format).parse(times[1]);
if (nowTime.getTime() == startTime.getTime()
|| nowTime.getTime() == endTime.getTime()) {
return true;
}
Calendar date = Calendar.getInstance();
date.setTime(nowTime);
Calendar begin = Calendar.getInstance();
begin.setTime(startTime);
Calendar end = Calendar.getInstance();
end.setTime(endTime);
if (isSameDay(date, begin) ||isSameDay(date, end)) {
return true;
}
if (date.after(begin) && date.before(end)) {
return true;
}else {
return false;
}
}catch (Exception e) {
e.printStackTrace();
return false;
}
}
public static boolean isSameDay(Calendar cal1, Calendar cal2) {
if (cal1 !=null && cal2 !=null) {
return cal1.get(0) == cal2.get(0) && cal1.get(1) == cal2.get(1) && cal1.get(6) == cal2.get(6);
}else {
throw new IllegalArgumentException("The date must not be null");
}
}
public static long getTimeByDate(String time) {
SimpleDateFormat format =new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
try {
Date date = format.parse(time);
//日期转时间戳（毫秒）
return date.getTime();
}catch (Exception e) {
e.printStackTrace();
return 0;
}
}
/**
* 获取当前小时 ：2019-08-23 17
*
* @return 2019-08-27 17
*/
public static StringgetCurrentHour() {
GregorianCalendar calendar =new GregorianCalendar();
int hour = calendar.get(Calendar.HOUR_OF_DAY);
if (hour <10) {
return DateUtils.getCurrentTime() +" 0" + hour;
}
return DateUtils.getDateByString() +" " + hour;
}
/**
* 获取当前时间一个小时前
* @return 2019-08-27 16
*/
public static StringgetCurrentHourBefore() {
GregorianCalendar calendar =new GregorianCalendar();
int hour = calendar.get(Calendar.HOUR_OF_DAY);
if (hour >0) {
hour = calendar.get(Calendar.HOUR_OF_DAY) -1;
if (hour <10) {
return DateUtils.getDateByString() +" 0" + hour;
}
return DateUtils.getDateByString() +" " + hour;
}
//获取当前日期前一天
return DateUtils.getBeforeDay() +" " +23;
}
/**
* 获取当前日期前一天
*
* @return 2019-08-26
*/
public static StringgetBeforeDay() {
SimpleDateFormat sdf =new SimpleDateFormat("yyyy-MM-dd");
Date date =new Date();
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.add(Calendar.DAY_OF_MONTH, -1);
date = calendar.getTime();
return sdf.format(date);
}
/**
* 获取最近七天
*
* @return 2019-08-20
*/
public static StringgetServen() {
SimpleDateFormat sdf =new SimpleDateFormat("yyyy-MM-dd");
Calendar c = Calendar.getInstance();
c.add(Calendar.DATE, -7);
Date monday = c.getTime();
String preMonday = sdf.format(monday);
return preMonday;
}
/**
* 获取最近一个月
*
* @return 2019-07-27
*/
public static StringgetOneMonth() {
SimpleDateFormat sdf =new SimpleDateFormat("yyyy-MM-dd");
Calendar c = Calendar.getInstance();
c.add(Calendar.MONTH, -1);
Date monday = c.getTime();
String preMonday = sdf.format(monday);
return preMonday;
}
/**
* 获取最近三个月
*
* @return 2019-05-27
*/
public static StringgetThreeMonth() {
SimpleDateFormat sdf =new SimpleDateFormat("yyyy-MM-dd");
Calendar c = Calendar.getInstance();
c.add(Calendar.MONTH, -3);
Date monday = c.getTime();
String preMonday = sdf.format(monday);
return preMonday;
}
/**
* 获取最近一年
*
* @return 2018-08-27
*/
public static StringgetOneYear() {
SimpleDateFormat sdf =new SimpleDateFormat("yyyy-MM-dd");
Calendar c = Calendar.getInstance();
c.add(Calendar.YEAR, -1);
Date start = c.getTime();
String startDay = sdf.format(start);
return startDay;
}
private static int month = Calendar.getInstance().get(Calendar.MONTH) +1;
/**
* 获取今年月份数据
* 说明 有的需求前端需要根据月份查询每月数据，此时后台给前端返回今年共有多少月份
*
* @return [1, 2, 3, 4, 5, 6, 7, 8]
*/
public static ListgetMonthList(){
List list =new ArrayList();
for (int i =1; i <=month; i++) {
list.add(i);
}
return list;
}
/**
* 返回当前年度季度list
* 本年度截止目前共三个季度，然后根据1,2,3分别查询相关起止时间
* @return [1, 2, 3]
*/
public static ListgetQuartList(){
int quart =month /3 +1;
List list =new ArrayList();
for (int i =1; i <= quart; i++) {
list.add(i);
}
return list;
}
/**
* 字符串转时间戳
* @param time
* @return
*/
public static LonggetTimestamp(String time) {
Long timestamp =null;
try {
timestamp =new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(time).getTime();
}catch (ParseException e) {
e.printStackTrace();
}
return timestamp;
}
public static void main(String[] args) {
System.out.println(DateUtils.getQuartList());
}
}
