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RffanLAB Utils For Many Way use
package io.afu.utils.datetime;
import io.afu.common.exception.BaseException;
import io.afu.utils.string.StringUtils;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
public class DateUtils {
/**
* 获取当前日期格式 按照yyyyMMddhhmmss这样子的来进行
* @param format 时间格式
* @return String
*/
public static String getTodayByFormat(String format){
Date now = new Date();
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
return simpleDateFormat.format(now);
}
/**
* 多少天后的某某天
* @param days 多少天
* @return Date类型
*/
public static Date someDaysLaterAfterToday(int days){
days = Math.abs(days);
return someDaysChange(new Date(),days);
}
/**
* 当前时间多少天前的时间
* @param days 多少天
* @return Date类型
*/
public static Date someDaysBeforeToday(int days){
days = -Math.abs(days);
return someDaysChange(new Date(),days);
}
/**
* 某天后
* @param theDate 某天
* @param days 多少天以后
* @return Date类型
*/
public static Date someDaysChange(Date theDate,int days){
Calendar c = Calendar.getInstance();
c.setTime(theDate);
c.add(Calendar.DATE,days);
return c.getTime();
}
/**
* 计算两个日期间相差天数
* @param date1 靠前的时间
* @param date2 靠后的时间
* @return 时间差
*/
public static long getLengthDays(Date date1,Date date2){
long timediff= date2.getTime()-date1.getTime();
return timediff/(24*60*60*1000);
}
/**
* 获取当前的日期，格式为yyyy-MM-dd
* @return String
*/
public static String getToday(){
Date now = new Date();
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
return simpleDateFormat.format(now);
}
/**
* 按照格式来获取日期
* @param format 时间格式
* @return 格式化好的时间
*/
public static String getToday(String format){
Date now = new Date();
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
return simpleDateFormat.format(now);
}
/**
* 通过样式解析日期
* @param sourceDate 原始日期
* @param format 原始日期的格式
* @return Date
* @throws Exception 解析出错后抛出的错误
*/
public static Date parseDateByFormat(String sourceDate,String format) throws Exception{
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
return simpleDateFormat.parse(sourceDate);
}
/**
* 获取多少个月前的第一天的Date对象
* @param monthes 月份数量（uint 正整数）
* @return 返回时间
*/
public static Date getFirstDateOfSeveralMonthAgo(Integer monthes) {
Calendar c = Calendar.getInstance();
c.add(Calendar.MONTH,-monthes);
c.set(Calendar.DAY_OF_MONTH,1);
return c.getTime();
}
/**
* 获取多少个月后的第一天
* @param monthes 月份数量(uint正整数)
* @return 返回时间
*/
public static Date getFirstDateOfNextSeveralMonth(Integer monthes){
Calendar c = Calendar.getInstance();
c.add(Calendar.MONTH,monthes);
c.set(Calendar.DAY_OF_MONTH,1);
return c.getTime();
}
/**
* 获取某些月份的第一天的字符串
* @param monthes 几个月前
* @param format 格式化的格式
* @return 返回值
*/
public static String getFirstDateOfSeveralMonthAgo(Integer monthes,String format){
Date date = getFirstDateOfSeveralMonthAgo(monthes);
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
return simpleDateFormat.format(date);
}
/**
* 获取以后某些月份的第一天的字符串
* @param monthes 几个月后
* @param format 格式化字符串
* @return 返回值
*/
public static String getFirstDateOfNextSeveralMonth(Integer monthes,String format){
Date date = getFirstDateOfNextSeveralMonth(monthes);
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
return simpleDateFormat.format(date);
}
/**
* 获取本月的第一天
* @return Date
*/
public static Date getThisMonthFirstDate(){
Calendar c = Calendar.getInstance();
c.add(Calendar.MONTH,0);
c.set(Calendar.DAY_OF_MONTH,1);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println(sdf.format(c.getTime()));
return c.getTime();
}
/**
* 获取上个个月的最后一天时间
* @return Date
*/
public static Date getThisMonthLastDate(){
Calendar c=Calendar.getInstance();
c.add(Calendar.MONTH, 0);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
int lastMonthMaxDay=c.getActualMaximum(Calendar.DAY_OF_MONTH);
c.set(c.get(Calendar.YEAR), c.get(Calendar.MONTH), lastMonthMaxDay, 23, 59, 59);
System.out.println(sdf.format(c.getTime()));
return c.getTime();
}
/**
* 获取上个月的第一天时间
* @return Date
*/
public static Date getLastMonthFirstDate(){
Calendar c= Calendar.getInstance();
c.add(Calendar.MONTH,-1);
c.set(Calendar.DAY_OF_MONTH,1);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println(sdf.format(c.getTime()));
return c.getTime();
}
/**
* 获取上个个月的最后一天时间
* @return Date
*/
public static Date getLastMonthLastDate(){
Calendar c=Calendar.getInstance();
c.add(Calendar.MONTH, -1);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
int lastMonthMaxDay=c.getActualMaximum(Calendar.DAY_OF_MONTH);
c.set(c.get(Calendar.YEAR), c.get(Calendar.MONTH), lastMonthMaxDay, 23, 59, 59);
System.out.println(sdf.format(c.getTime()));
return c.getTime();
}
/**
* 获取当前日期的几天后的时间
* @param days 天数
* @return 计算好的时间
*/
public static Date getSomeDaysLater(Integer days){
Calendar now = Calendar.getInstance();
now.setTime(new Date());
now.set(Calendar.DATE,now.get(Calendar.DATE) + days);
return now.getTime();
}
public static Date getSomeDaysLater(Date theNow,Integer days){
Calendar now = Calendar.getInstance();
now.setTime(theNow);
now.set(Calendar.DATE,now.get(Calendar.DATE) + days);
return now.getTime();
}
/**
* 获取当前时间几天前的时间
* @param days 天数
* @return 计算好的时间
*/
public static Date getSomeDaysAgo(Integer days){
return getSomeDaysLater(-Math.abs(days));
}
/**
* 返回某个时间几天前的时间
* @param theNow 某个时间点
* @param days 天数
* @return 计算好的时间点
*/
public static Date getSomeDaysAgo(Date theNow,Integer days){
return getSomeDaysLater(theNow,-Math.abs(days));
}
/**
* 更当前时间对比
* @param toCompare 需要比对的时间
* @return String
*/
public static String compareNowTime(Date toCompare){
String result = "";
Long nd = 1000L * 24L * 60L * 60L;// 一天的毫秒数
Long nh = 1000L * 60L * 60L;// 一小时的毫秒数
Long nm = 1000L * 60L;// 一分钟的毫秒数
Long ns = 1000L;// 一秒钟的毫秒数
Long day = 0L;
Long hour = 0L;
Long min = 0L;
Long sec = 0L;
Date now = new Date();
Long diff = toCompare.getTime() - now.getTime();
String suffix = "前";
if (diff >0){
suffix = "后";
}
diff = Math.abs(diff);
day = diff / nd;
hour = diff / nh;
min = diff / nm;
sec = diff / ns;
if (day > 1){
return day.toString()+"天"+suffix;
}
if (hour >1 ){
return hour.toString()+"小时"+suffix;
}
if (min > 1 ){
return min.toString() + "分钟"+ suffix;
}
return sec.toString() + "秒"+ suffix;
}
/**
* 获取多少年之前的今天
* @param yearDifference (整是往后的几年，负是往前的纪念)
* @param theDate (格式为yyyy-MM-dd)
* @return Date
* @throws Exception 解析时间出错时抛出的错误
*/
public static Date getYearsAgoOfToday(Integer yearDifference,String theDate) throws Exception{
Calendar c = Calendar.getInstance();
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
Date theDateOfsomeday = simpleDateFormat.parse(theDate);
c.setTime(theDateOfsomeday);
c.add(Calendar.YEAR,yearDifference);
return c.getTime();
}
/**
* 检查这个日期格式是正常日历上的日期，格式为yyyyMMdd，该方法是为了防止出现2月31号这种日期的出现。
* @param date 需要检查的时间
* @return Boolean
* @throws Exception 解析时间出错时抛出的错误
*/
public static Boolean checkDateIsTheTrueCalendarDate(String date) throws Exception {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyyMMdd");
Date theDate = simpleDateFormat.parse(date);
if (date.equals(simpleDateFormat.format(theDate))){
return true;
}
return false;
}
public static Boolean checkDateIsTheTrueCalendarDate(String date,String format) throws Exception {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
Date theDate = simpleDateFormat.parse(date);
if (date.equals(simpleDateFormat.format(theDate))){
return true;
}
return false;
}
/**
* 判断该日期是否在日期之间
* @param theDateStr 需要判断的日期
* @param startDateStr 周期开始的日期
* @param endDateStr 周期结束的日期
* @param format 日期格式
* @return Boolean
* @throws Exception 解析时间时出错抛出的错误
*/
public static Boolean theDateIsBetween(String theDateStr,String startDateStr,String endDateStr,String format) throws Exception{
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
Date theDate = simpleDateFormat.parse(theDateStr);
Date startDate = simpleDateFormat.parse(startDateStr);
Date endDate = simpleDateFormat.parse(endDateStr);
if (endDate.getTime()-theDate.getTime()>=0 && theDate.getTime()-startDate.getTime()>=0){
return true;
}
return false;
}
/**
* 判断该日期是否在日期之间
* @param theDate 需要判断的日期
* @param startDate 周期开始的日期
* @param endDate 周期结束的日期
* @param format 日期格式
* @return Boolean
*/
public static Boolean theDateIsBetween(Date theDate,Date startDate,Date endDate,String format) {
if (endDate.getTime()-theDate.getTime()>=0 && theDate.getTime()-startDate.getTime()>=0){
return true;
}
return false;
}
/**
* 获取当前时间的年份
* @return String 返回当前时间的年份
*/
public static String getThisYear(){
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy");
return simpleDateFormat.format(new Date());
}
/**
* 获取当前月份也以前月份比较后的相差月数
* @param theMonth 以前的月份时间
* @return 返回月数
* @throws BaseException 抛错
*/
public static int howManyMonthesCompareNow(String theMonth) throws BaseException {
try {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM");
String str1 = sdf.format(new Date());
Calendar bef = Calendar.getInstance();
Calendar aft = Calendar.getInstance();
bef.setTime(sdf.parse(str1));
aft.setTime(sdf.parse(theMonth));
int result = aft.get(Calendar.MONTH) - bef.get(Calendar.MONTH);
int month = (aft.get(Calendar.YEAR) - bef.get(Calendar.YEAR)) * 12;
return Math.abs(month + result);
}catch (Exception e){
throw new BaseException(e);
}
}
public static void main(String[] args) {
try {
// System.out.println("args = [" + getYearsAgoOfToday(-Integer.valueOf("1"),"2018-10-24") + "]");
Boolean stat = theDateIsBetween("20180930","20181001","20181031","yyyyMMdd");
System.out.println("args = [" + stat + "]");
}catch (Exception e){
e.printStackTrace();
}
System.out.println("args = [" + -Integer.valueOf("1") + "]");
}
}