com.aspire.nm.component.commonUtil.date.DateUtil Maven / Gradle / Ivy
package com.aspire.nm.component.commonUtil.date;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;
public class DateUtil
{
/**
* 日期长字符串格式符
*/
public static final String DATE_FORMAT_FULL = "yyyy-MM-dd HH:mm:ss";
/**
* 日期短字符串格式符
*/
public static final String DATE_FORMAT_SHORT = "yyyy-MM-dd";
/**
* 日期紧凑串格式符
*/
public static final String DATE_FORMAT_COMPACTSHORT = "yyyyMMdd";
/**
* 紧凑格式的全字符串
*/
public static final String DATE_FORMAT_COMPACTFULL = "yyyyMMddHHmmss";
public static final String DATE_FORMAT_HHMMSS = "HH:mm:ss";
/**
* 得到当前日期
*
* @return 当前日期 yyyy-MM-dd HH:mm:ss格式
*/
public static String getCurDateTime() {
Calendar now = Calendar.getInstance(TimeZone.getDefault());
DateFormat sdf = new SimpleDateFormat(DATE_FORMAT_FULL);
sdf.setTimeZone(TimeZone.getDefault());
return (sdf.format(now.getTime()));
}
/**
* 得到当前日期
* @Format 日期格式, yyyy-MM-dd HH:mm:ss, 等
* @return 当前日期
*/
public static String getCurDateTimeFormat(String Format) {
Calendar now = Calendar.getInstance(TimeZone.getDefault());
DateFormat sdf = new SimpleDateFormat(Format);
sdf.setTimeZone(TimeZone.getDefault());
return (sdf.format(now.getTime()));
}
/**
* 得到一个Date对象
*
* @tdate 时间的字符串表示
* @format 日期格式, yyyy-MM-dd HH:mm:ss, 等
* @return Date对象
* @throws ParseException
*/
public static Date getDate(String date,String format) throws ParseException{
SimpleDateFormat formatter = new SimpleDateFormat(format);
return formatter.parse(date);
}
/**
* 得到Date转换后的String
* @param date 时间的Date格式
* @param format 日期格式, yyyy-MM-dd HH:mm:ss, 等
* @return date 时间的String格式
*/
public static String getDateString(Date date,String format){
SimpleDateFormat sdf = new SimpleDateFormat(format);
return sdf.format(date);
}
/**
* System.currentTimeMillis()时间格式化l
* @return
*/
public static String getTimeFromCurrent(long l){
if(l ==0)return "";
return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date(l));
}
/**
* 得到当前星期几
* @return 当前的星期几,如 "星期一"
*/
public static String getWeekDay() {
Calendar now = Calendar.getInstance(TimeZone.getDefault());
int r = now.get(Calendar.DAY_OF_WEEK);
if(r == Calendar.SUNDAY){
return "星期日";
}
if(r == Calendar.MONDAY){
return "星期一";
}
if(r == Calendar.TUESDAY){
return "星期二";
}
if(r == Calendar.WEDNESDAY){
return "星期三";
}
if(r == Calendar.THURSDAY){
return "星期四";
}
if(r == Calendar.FRIDAY){
return "星期五";
}
if(r == Calendar.SATURDAY){
return "星期六";
}
return null;
}
/**
* 得到星期几
* yyyy_mm_dd 日期格式, yyyy-MM-dd
* @return 参数日期是星期几
* @throws ParseException
*/
public static String getWeekDay(String yyyy_mm_dd) throws ParseException {
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
Date date = dateFormat.parse(yyyy_mm_dd);;
Calendar cd = Calendar.getInstance();
cd.setTime(date);
int r = cd.get(Calendar.DAY_OF_WEEK);
if(r == Calendar.SUNDAY){
return "星期日";
}
if(r == Calendar.MONDAY){
return "星期一";
}
if(r == Calendar.TUESDAY){
return "星期二";
}
if(r == Calendar.WEDNESDAY){
return "星期三";
}
if(r == Calendar.THURSDAY){
return "星期四";
}
if(r == Calendar.FRIDAY){
return "星期五";
}
if(r == Calendar.SATURDAY){
return "星期六";
}
return null;
}
/**
* 是否是今天
*
* @yyyy_mm_dd 所判断的当前日期 yyyy-MM-dd
* @return 是今天则返回true
* @throws ParseException
*/
public static boolean isCurrentDay(String yyyy_mm_dd) throws ParseException {
boolean bRet = false;
Calendar now = Calendar.getInstance(TimeZone.getDefault());
DateFormat sdf = new SimpleDateFormat(DATE_FORMAT_SHORT);
sdf.setTimeZone(TimeZone.getDefault());
Date date1 = sdf.parse(yyyy_mm_dd);
String strDate1 = sdf.format(date1);
String strDate2 = sdf.format(now.getTime());
bRet = strDate1.equalsIgnoreCase(strDate2);
return bRet;
}
/**
* 得到N分钟后的时间
*
* @theDate 某日期 格式 yyyy-MM-dd HH:mm:ss 等
* @nMinutesNum N分钟
* @format 日期格式, yyyy-MM-dd HH:mm:ss, 等
* @return N分钟后的日期
* @throws ParseException
*/
public static String afterNMinutesDate(String theDate, int nMinutesNum, String format) throws ParseException {
SimpleDateFormat sdf = new SimpleDateFormat(format);
Date dd1 = sdf.parse(theDate);
Calendar cal = Calendar.getInstance();
cal.setTime(dd1);
cal.add(Calendar.MINUTE, nMinutesNum);
sdf.setTimeZone(TimeZone.getDefault());
return (sdf.format(cal.getTime()));
}
/**
* 得到N天后的日期
*
* @theDate 某日期 格式 yyyy-MM-dd HH:mm:ss 等
* @nDayNum N天
* @format 日期格式, yyyy-MM-dd HH:mm:ss, 等
* @return N天后的日期
* @throws ParseException
*/
public static String afterNDaysDate(String theDate, int nDayNum, String format) throws ParseException {
SimpleDateFormat sdf = new SimpleDateFormat(format);
Date dd1 = sdf.parse(theDate);
Calendar cal = Calendar.getInstance();
cal.setTime(dd1);
cal.add(Calendar.DAY_OF_YEAR, nDayNum);
sdf.setTimeZone(TimeZone.getDefault());
return (sdf.format(cal.getTime()));
}
/**
* 得到N天前的日期
*
* @theDate 某日期 格式 yyyy-MM-dd HH:mm:ss, 等
* @nDayNum N天
* @format 日期格式, yyyy-MM-dd HH:mm:ss, 等
* @return N天前的日期
* @throws ParseException
*/
public static String beforeNDaysDate(String theDate, int nDayNum, String format) throws ParseException {
return afterNDaysDate(theDate, 0-nDayNum, format);
}
/**
* 获取两个日期中间的天数
* @param yyyy_mm_dd_1 第一个日期(yyyy-MM-dd)
* @param yyyy_mm_dd_2 第二个日期(yyyy-MM-dd)
* @return daycount 前一个日期减去后一个日期的天数
* @throws ParseException
*/
public static int getDayCount(String yyyy_mm_dd_1, String yyyy_mm_dd_2) throws ParseException {
SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");
java.util.Date date = myFormatter.parse(yyyy_mm_dd_1);
java.util.Date mydate = myFormatter.parse(yyyy_mm_dd_2);
return (int)((date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000));
}
/**
* 获取本周一的日期
* @return 本周一的日期(字符串yyyy-MM-dd格式)
*/
public static String getMondayOFWeek(){
int mondayPlus = getMondayPlus();
GregorianCalendar currentDate = new GregorianCalendar();
currentDate.add(GregorianCalendar.DATE, mondayPlus);
Date monday = currentDate.getTime();
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
String preMonday = sdf.format(monday);
return preMonday;
}
/**
* 获取当月第一天
* @return 当月的第一天(字符串yyyy-MM-dd格式)
*/
public static String getFirstDayOfMonth(){
String str = "";
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
Calendar lastDate = Calendar.getInstance();
lastDate.set(Calendar.DATE,1);//设为当前月的1号
str=sdf.format(lastDate.getTime());
return str;
}
/**
* 获取当月最后一天
* @return 当月的第一天(字符串yyyy-MM-dd格式)
*/
public static String getLastDayOfMonth(){
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
Calendar ca = Calendar.getInstance();
ca.set(Calendar.DAY_OF_MONTH, ca.getActualMaximum(Calendar.DAY_OF_MONTH));
String last = sdf.format(ca.getTime());
return last;
}
/**
* 获得本季度第一天
* @return 获得本季度第一天(字符串yyyy-MM-dd格式)
*/
public static String getFirstDayOfSeason(){
SimpleDateFormat df=new SimpleDateFormat("yyyyMMdd");
String str=df.format(new Date());
//当前月份
int month = Integer.parseInt(str.substring(4, 6));
int array[][] = {{1,2,3},{4,5,6},{7,8,9},{10,11,12}};
int season = 1;
if(month>=1&&month<=3){
season = 1;
}
if(month>=4&&month<=6){
season = 2;
}
if(month>=7&&month<=9){
season = 3;
}
if(month>=10&&month<=12){
season = 4;
}
int start_month = array[season-1][0];
int end_month = array[season-1][2];
Date date = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy");//可以方便地修改日期格式
String years = dateFormat.format(date);
int years_value = Integer.parseInt(years);
int start_days =1;//years+"-"+String.valueOf(start_month)+"-1";//getLastDayOfMonth(years_value,start_month);
@SuppressWarnings("unused")
int end_days = getLastDayOfMonth(years_value,end_month);
// 本季度第一天
String seasonstartDate = years_value+"-"+(start_month<10?"0"+start_month:start_month)+"-"+(start_days<10?"0"+start_days:start_days);
// 本季度最后一天
// String seasonendDate = years_value+"-"+end_month+"-"+end_days;
return seasonstartDate;
}
/**
* 获取本年第一天的日期
* @return 本本年第一天的日期(字符串yyyy-MM-dd格式)
*/
public static String getFirstDayOfYear(){
int yearPlus = getYearPlus();
GregorianCalendar currentDate = new GregorianCalendar();
currentDate.add(GregorianCalendar.DATE,yearPlus);
Date yearDay = currentDate.getTime();
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
String preYearDay = sdf.format(yearDay);
return preYearDay;
}
/**
* 得到时间间隔(秒)
* @date1,时间参数1
* @date2,时间参数2
* @format 时间格式,如yyyy-MM-dd HH:mm:ss
* @return
* @throws ParseException
*/
public static long getInters(String date1,String date2,String format) throws ParseException{
SimpleDateFormat formatter = new SimpleDateFormat(format);
Date d1 = formatter.parse(date1);
Date d2 = formatter.parse(date2);
long result = (d1.getTime() - d2.getTime())/1000;
if(result < 0){
return -result;
}else{
return result;
}
}
public static boolean isStoockTime(){
if(getWeekDay().equals("星期六") || getWeekDay().equals("星期日")){
return false;
}
String hhmmss = getCurDateTimeFormat(DateUtil.DATE_FORMAT_HHMMSS);
if(hhmmss.compareTo("09:15:00") > 0 && hhmmss.compareTo("11:30:00") < 0){
return true;
}
if(hhmmss.compareTo("13:00:00") > 0 && hhmmss.compareTo("15:00:00") < 0){
return true;
}
return false;
}
private static int getMondayPlus() {
Calendar cd = Calendar.getInstance();
// 获得今天是一周的第几天，星期日是第一天，星期二是第二天......
int dayOfWeek = cd.get(Calendar.DAY_OF_WEEK)-1;//因为按中国礼拜一作为第一天所以这里减1
if (dayOfWeek == 1) {
return 0;
} else {
return 1 - dayOfWeek;
}
}
private static int getYearPlus(){
Calendar cd = Calendar.getInstance();
int yearOfNumber = cd.get(Calendar.DAY_OF_YEAR);//获得当天是一年中的第几天
cd.set(Calendar.DAY_OF_YEAR,1);//把日期设为当年第一天
cd.roll(Calendar.DAY_OF_YEAR,-1);//把日期回滚一天。
int MaxYear = cd.get(Calendar.DAY_OF_YEAR);
if(yearOfNumber == 1){
return -MaxYear;
}else{
return 1-yearOfNumber;
}
}
private static boolean isLeapYear(int year) {
return (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);
}
private static int getLastDayOfMonth(int year, int month) {
if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8
|| month == 10 || month == 12) {
return 31;
}
if (month == 4 || month == 6 || month == 9 || month == 11) {
return 30;
}
if (month == 2) {
if (isLeapYear(year)) {
return 29;
} else {
return 28;
}
}
return 0;
}
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