DateUtils.java
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package com.huaheng.common.utils;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Map;
import org.apache.commons.lang3.time.DateFormatUtils;
/**
* 时间工具类
*
* @author huaheng
*/
public class DateUtils extends org.apache.commons.lang3.time.DateUtils
{
public static String YYYY = "yyyy";
public static String YYYY_MM = "yyyy-MM";
public static String YYYY_MM_DD = "yyyy-MM-dd";
public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";
public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";
private static String[] parsePatterns = {
"yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
"yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
"yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};
/**
* 获取当前Date型日期
*
* @return Date() 当前日期
*/
public static Date getNowDate()
{
return new Date();
}
/**
* 获取当前日期, 默认格式为yyyy-MM-dd
*
* @return String
*/
public static String getDate()
{
return dateTimeNow(YYYY_MM_DD);
}
public static final String getTime()
{
return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
}
public static final String dateTimeNow()
{
return dateTimeNow(YYYYMMDDHHMMSS);
}
public static final String dateTimeNow(final String format)
{
return parseDateToStr(format, new Date());
}
public static final String dateTime(final Date date)
{
return parseDateToStr(YYYY_MM_DD, date);
}
public static final String parseDateToStr(final String format, final Date date)
{
return new SimpleDateFormat(format).format(date);
}
public static final Date dateTime(final String format, final String ts)
{
try
{
return new SimpleDateFormat(format).parse(ts);
}
catch (ParseException e)
{
throw new RuntimeException(e);
}
}
/**
* 日期路径 即年/月/日 如2018/08/08
*/
public static final String datePath()
{
Date now = new Date();
return DateFormatUtils.format(now, "yyyy/MM/dd");
}
/**
* 日期路径 即年/月/日 如20180808
*/
public static final String dateTime()
{
Date now = new Date();
return DateFormatUtils.format(now, "yyyyMMdd");
}
/**
* 日期型字符串转化为日期 格式
*/
public static Date parseDate(Object str)
{
if (str == null)
{
return null;
}
try
{
return parseDate(str.toString(), parsePatterns);
}
catch (ParseException e)
{
return null;
}
}
/**
* 计算两个时间差
* @param date1
* @param date2
* @return
*/
public static long difference(Date date1, Date date2) {
long from3 = date1.getTime();
long to3 = date2.getTime();
int second = (int) ((to3 - from3) / 1000);
return Math.abs(second);
}
public static Date dateAddNum(Date date,int day,int minute,int sec) {
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
calendar.add(Calendar.DATE,day); //把日期往后增加一天,整数 往后推,负数往前移动
calendar.add(Calendar.MINUTE,minute); //把日期往后增加一天,整数 往后推,负数往前移动
calendar.add(Calendar.SECOND,sec); //把日期往后增加一天,整数 往后推,负数往前移动
date=calendar.getTime(); //这个时间就是日期往后推一天的结果
return date;
}
public static int secondToDays(long second) {
String strTime = null;
int days =(int) second / (60 * 60 * 24);
Long hours = (second % (60 * 60 * 24)) / (60 * 60);
Long minutes = (second % (60 * 60)) / 60;
Long seconds = second % 60;
if (days > 0) {
strTime = days + "天" + hours + "小时" + minutes + "分钟";
} else if (hours > 0) {
strTime = hours + "小时" + minutes + "分钟";
} else if (minutes > 0) {
strTime = minutes + "分钟" + seconds + "秒";
} else {
strTime = second + "秒";
}
return days;
}
}