813 lines
24 KiB
Java
Executable File
813 lines
24 KiB
Java
Executable File
package util;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.time.LocalDateTime;
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import java.time.format.DateTimeFormatter;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.GregorianCalendar;
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public abstract class DateUtil {
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public static final String DATE_FORMAT_FULL = "yyyy-MM-dd HH:mm:ss.SSS";
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public static final String DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
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/**
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* 根据传入的模式参数返回当天的日期
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* @param pattern 传入的模式
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* @return 按传入的模式返回一个字符串
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*/
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public static String getToday ( String pattern )
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{
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Date date = new Date () ;
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SimpleDateFormat sdf = new SimpleDateFormat ( pattern ) ;
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return sdf.format ( date ) ;
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}
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/**
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* 比较两个日期大小
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* @param date1 日期字符串
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* @param pattern1 日期格式
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* @param date2 日期字符串
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* @param pattern2 日期格式
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* @return boolean 若是date1比date2小则返回true
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* @throws ParseException
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*/
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public static boolean compareMinDate ( String date1 , String pattern1 ,
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String date2 , String pattern2 )
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throws ParseException
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{
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Date d1 = convertToCalendar ( date1 , pattern1 ).getTime () ;
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Date d2 = convertToCalendar ( date2 , pattern2 ).getTime () ;
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return d1.before ( d2 ) ;
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}
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/**
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* 比较两个日期大小
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* @param date1 Date
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* @param date2 Date
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* @return boolean 若是date1比date2小则返回true
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*/
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public static boolean compareMinDate ( Date date1 , Date date2 )
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{
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try
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{
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return DateUtil.compareMinDate ( DateUtil.formatDate ( date1 , "yyyy-MM-dd HH:mm:ss" ) ,
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"yyyy-MM-dd HH:mm:ss" ,
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DateUtil.formatDate ( date2 , "yyyy-MM-dd HH:mm:ss" ) ,
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"yyyy-MM-dd HH:mm:ss" ) ;
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}
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catch ( Exception ex )
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{
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return false ;
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}
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}
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/**
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* 比较两个日期大小
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* @param date1 Date
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* @param date2 Date
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* @return boolean 若是date1比date2小则返回true
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*/
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public static boolean compareMinDateForDay ( Date date1 , Date date2 )
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{
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try
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{
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return DateUtil.compareMinDate ( DateUtil.formatDate ( date1 , "yyyy-MM-dd" ) ,
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"yyyy-MM-dd" ,
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DateUtil.formatDate ( date2 , "yyyy-MM-dd" ) ,
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"yyyy-MM-dd" ) ;
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}
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catch ( Exception ex )
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{
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return false ;
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}
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}
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/**
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* 根据传入的日期字符串以及格式，产生一个Calendar对象
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* @param date 日期字符串
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* @param pattern 日期格式
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* @return Calendar
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* @throws ParseException 当格式与日期字符串不匹配时抛出该异常
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*/
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public static Calendar convertToCalendar ( String date , String pattern )
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throws ParseException
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{
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SimpleDateFormat sdf = new SimpleDateFormat ( pattern ) ;
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Date d = sdf.parse ( date ) ;
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GregorianCalendar calendar = new GregorianCalendar () ;
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calendar.setTime ( d ) ;
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return calendar ;
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}
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/**
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* 用途：以指定的格式格式化日期字符串
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* @param pattern 字符串的格式
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* @param currentDate 被格式化日期
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* @return String 已格式化的日期字符串
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* @throws NullPointerException 如果参数为空
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*/
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public static String formatDate ( Calendar currentDate , String pattern )
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{
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Date date = currentDate.getTime () ;
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return formatDate ( date , pattern ) ;
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}
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/**
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* 用途：以指定的格式格式化日期字符串
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* @param pattern 字符串的格式
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* @param currentDate 被格式化日期
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* @return String 已格式化的日期字符串
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* @throws NullPointerException 如果参数为空
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*/
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public static String formatDate ( Date currentDate , String pattern ) {
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SimpleDateFormat sdf = new SimpleDateFormat ( pattern ) ;
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return sdf.format ( currentDate ) ;
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}
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/**
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* 用途：以指定的格式格式化日期字符串
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* @param currentDate 被格式化日期字符串 必须为yyyymmdd
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* @param pattern 字符串的格式
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* @return String 已格式化的日期字符串
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* @throws NullPointerException 如果参数为空
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* @throws java.text.ParseException 若被格式化日期字符串不是yyyymmdd形式时抛出
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*/
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public static String formatDate ( String currentDate , String pattern )
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throws java.text.ParseException
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{
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SimpleDateFormat sdf = new SimpleDateFormat ( "yyyyMMdd" ) ;
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Date date = sdf.parse ( currentDate ) ;
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sdf.applyPattern ( pattern ) ;
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return sdf.format ( date ) ;
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}
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/**
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* 用途：以指定的格式格式化日期字符串
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* @param strDate 被格式化日期字符串 必须为yyyymmdd
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* @param formator 格式字符串
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* @return String 已格式化的日期字符串
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* @throws NullPointerException 如果参数为空
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* @throws java.text.ParseException 若被格式化日期字符串不是yyyymmdd形式时抛出
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*/
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public static Calendar strToDate ( String strDate , String formator )
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{
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Calendar date = Calendar.getInstance () ;
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date.setTime ( java.sql.Date.valueOf ( strDate ) ) ;
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return date ;
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}
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/**
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* 判断当前时间是否在参数时间内（当开始时间大于结束时间表示时间段的划分从begin到第二天的end时刻）
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* 例如当前时间在12：00 传入参数为（12,12,0,1）返回true
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* 例如当前时间在12：00 传入参数为（12,12,1,0）返回true
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* @param beginHour int 开始的小时值
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* @param endHour int 结束的小时值
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* @param beginMinu int 开始的分钟值
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* @param endMinu int 结束的分钟值
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* @return boolean
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*/
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public static boolean isInTime ( int beginHour , int endHour ,
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int beginMinu ,
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int endMinu )
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{
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Date date1 = new Date () ;
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Date date2 = new Date () ;
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Date nowDate = new Date () ;
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date1.setHours ( beginHour ) ;
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date2.setHours ( endHour ) ;
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date1.setMinutes ( beginMinu ) ;
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date2.setMinutes ( endMinu ) ;
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if ( date1 == date2 )
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{
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return false ;
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}
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//yyyy-MM-dd HH:mm:ss
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if (
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DateUtil.compare ( date2 , date1 ) )
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{
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if ( !DateUtil.compare ( nowDate , date1 )
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{
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return true ;
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}
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}
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else
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{
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if (
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!DateUtil.compare ( nowDate , date1 ) &&
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DateUtil.compare ( nowDate , date2 )
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)
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{
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return true ;
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}
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}
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return false ;
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}
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/**
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* 开始时间小于结束时间返回true，否则返回false
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* @param beginDate Date
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* @param endDate Date
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* @return boolean
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*/
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public static boolean compare ( Date beginDate , Date endDate )
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{
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try
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{
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return DateUtil.compareMinDate ( DateUtil.formatDate ( beginDate ,
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"yyyy-MM-dd HH:mm:ss" ) ,
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"yyyy-MM-dd HH:mm:ss" ,
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DateUtil.formatDate ( endDate ,
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"yyyy-MM-dd HH:mm:ss" ) ,
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"yyyy-MM-dd HH:mm:ss" ) ;
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}
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catch ( Exception ex )
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{
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// log.error ( "时间格式转换错误" + ex ) ;
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return false ;
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}
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}
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/**
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* 将指定格式的时间String转为Date类型
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* @param dateStr String 待转换的时间String
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* @param pattern String 转换的类型
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* @throws ParseException
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* @return Date
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*/
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public static Date convertStringToDate ( String dateStr , String pattern )
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{
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try{
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if ( Strings.isEmpty(dateStr))
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{
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return null ;
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}
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SimpleDateFormat sdf = new SimpleDateFormat ( pattern ) ;
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return sdf.parse ( dateStr ) ;
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} catch (ParseException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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return new Date();
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}
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public static String convertDateToString ( Date date ) throws ParseException {
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if (date == null) {
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return "";
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}
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return formatDate(date, "yyyy-MM-dd HH:mm:ss");
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}
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/**
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* 获取比当前日期早多少天或者晚多少天的日期 例如 前五天 －5 后五天 5
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* @param days
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* @param format 返回日期的格式
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* @return 格式化好的字符串
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*/
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public static String DateBefAft(int days,String format){
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//
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if(format==null || "".equals(format))
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format="yyyy-MM-dd";
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Calendar now = Calendar.getInstance();
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SimpleDateFormat formatter = new SimpleDateFormat(format);
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now.add(Calendar.DAY_OF_YEAR,-days);
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return formatter.format(now.getTime());
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}
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/**
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* 获取比当前日期早多少天或者晚多少天的日期 例如 前五天 －5 后五天 5
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* @param days
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* @param format 返回日期的格式
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* @return 日期
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* @throws ParseException
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*/
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public static Date DateBefAft_returnDate(int days,String format) throws ParseException{
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//
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if(format==null || "".equals(format))
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format="yyyy-MM-dd";
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Calendar now = Calendar.getInstance();
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SimpleDateFormat formatter = new SimpleDateFormat(format);
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now.add(Calendar.DAY_OF_YEAR,-days);
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return convertStringToDate(formatter.format(now.getTime()),"yyyy-MM-dd");
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}
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/**
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* 获取比当前日期早多少小时或者晚多少小时 例如 前五小时 －5 后五小时 5
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* @param days
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* @param format 返回日期的格式
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* @return 日期
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* @throws ParseException
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*/
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public static Date HourBefAft_returnDate(int hours) throws ParseException{
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Calendar now = Calendar.getInstance();
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now.add(Calendar.HOUR_OF_DAY,-hours);
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return now.getTime();
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}
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/**
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* 格式化 Date 类型的日期
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* @param date 传入日期
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* @param format 设定日期的显示格式 默认 2006-12-25
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* @return 格式化后的日期
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*/
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public static String DatetoString(Date date,String format){
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if(format==null || "".equals(format))
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format="yyyy-MM-dd";
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SimpleDateFormat formatter = new SimpleDateFormat(format);
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return formatter.format(date);
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}
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/**
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* 格式化 LocalDateTime 类型的日期
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* @param format 设定日期的显示格式 默认 2006-12-25
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* @param date 传入日期
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* @param s
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* @return 格式化后的日期
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*/
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public static String LocalDateToString(LocalDateTime date){
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DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
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return dateTimeFormatter.format(date);
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}
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public static void shortDateToLongDate(String strDate) {
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}
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/**
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* 获取某时间的中文星期（如：星期一、星期二），每星期的第一天是星期日
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* @param date：日期
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* @return
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*/
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public static String getWeekCS(Date date)
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{
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Calendar calendar = Calendar.getInstance();
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calendar.setTime(date);
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String[] week = {"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"};
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return week[calendar.get(Calendar.DAY_OF_WEEK) - 1];
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}
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/**
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* 获取某时间的星期
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* @param date：日期
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* @return
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*/
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public static int getWeek(Date date)
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{
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Calendar calendar = Calendar.getInstance();
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calendar.setTime(date);
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return calendar.get(Calendar.DAY_OF_WEEK)-1;
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}
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/**
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* 获取当前时间的中文星期（如：星期一、星期二），每星期的第一天是星期日
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* @return
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*/
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public static String getWeekCSToday()
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{
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return getWeekCS(new Date());
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}
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/**
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* 用当前日期作为文件名，一般不会重名取到的值是从当前时间的字符串格式，带有微秒，建议作为记录id
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* @return
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*/
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public static String getTimeStamp(String strFormat)
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{
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Date currentTime = new Date();
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return dateToString(currentTime, strFormat);
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}
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/**
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* 用当前日期作为文件名，一般不会重名取到的值是从1970年1月1日00:00:00开始算起所经过的微秒数
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* @return
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*/
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public static String getFileName()
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{
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Calendar calendar = Calendar.getInstance();
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String filename = String.valueOf(calendar.getTimeInMillis());
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return filename;
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}
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/**
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* 获取两个日期之间所差的天数
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* @param from：开始日期
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* @param to：结束日期
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* @return：所差的天数(非负整数)
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*/
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public static int dateNum(Date from, Date to)
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{
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Calendar calendar = Calendar.getInstance();
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calendar.setTime(from);
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calendar.set(Calendar.HOUR, 0);
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calendar.set(Calendar.MINUTE, 0);
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calendar.set(Calendar.SECOND, 0);
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Date fromDate = calendar.getTime();
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calendar.setTime(to);
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calendar.set(Calendar.HOUR, 0);
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calendar.set(Calendar.MINUTE, 0);
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calendar.set(Calendar.SECOND, 0);
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Date toDate = calendar.getTime();
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int diff = Math.abs((int) ((fromDate.getTime() - toDate.getTime()) / (24 * 3600 * 1000)));
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return diff;
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}
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/**
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* 获取两个日期之间所差的分钟数
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* @param from：开始日期
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* @param to：结束日期
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* @return：所差的天数(非负整数)
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*/
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public static int minuteNum(Date from, Date to)
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{
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int diff = Math.abs((int) ((from.getTime() - to.getTime()) / (60*1000)));
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return diff;
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}
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/**
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* 获取两个日期之间所差的分钟数
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* @param from：开始日期
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* @param to：结束日期
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* @return：所差的天数(非负整数)
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*/
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public static int secondNum(Date from, Date to)
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{
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int diff = Math.abs((int) ((from.getTime() - to.getTime()) / (1000)));
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return diff;
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}
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/**
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* 获取两个日期之间所差的周数
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* @param from
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* @param to
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* @return
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*/
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public static int weekNum(Date from, Date to)
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{
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return 0;
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}
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/**
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* 获取date前或后nDay天的日期
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* @param date：开始日期
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* @param nDay：天数
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* @param type：正为后nDay天的日期，否则为前nDay天的日期。
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* @return
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*/
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private static Date getDate(Date date, int nDay, int type,String format)
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{
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long millisecond = date.getTime(); //从1970年1月1日00:00:00开始算起所经过的微秒数
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long msel = nDay * 24 * 3600 * 1000l; //获取nDay天总的毫秒数
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millisecond = millisecond + ((type > 0) ? msel : (-msel));
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Calendar calendar = Calendar.getInstance();
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calendar.setTimeInMillis(millisecond);
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return calendar.getTime();
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}
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/**
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* 获取n天后的日期
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* @param date
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* @param nDay
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* @return
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*/
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public static Date dateAfterNDate(Date date, int nDay,String format)
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{
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return getDate(date, nDay, 1,format);
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}
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/**
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* 获取n天后的日期
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* @param strDate
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* @param nDay
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* @return
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*/
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public static Date dateAfterNDate(String strDate, int nDay,String format)
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{
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Date date = stringToDate(strDate, format);
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return dateAfterNDate(date, nDay,format);
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}
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/**
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* 获取n天前的日期
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* @param date
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* @param nDay
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* @return
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*/
|
||
public static Date dateBeforeNDate(Date date, int nDay,String format)
|
||
{
|
||
return getDate(date, nDay, -1,format);
|
||
}
|
||
|
||
/**
|
||
* 获取n天前的日期
|
||
* @param strDate
|
||
* @param nDay
|
||
* @return
|
||
*/
|
||
public static Date dateBeforeNDate(String strDate, int nDay,String format)
|
||
{
|
||
Date date = stringToDate(strDate, format);
|
||
return dateBeforeNDate(date, nDay,format);
|
||
}
|
||
|
||
/**
|
||
* 将日期转化为字符串的形式
|
||
* @param date
|
||
* @param strFormat
|
||
* @return
|
||
*/
|
||
public static String dateToString(Date date, String strFormat)
|
||
{
|
||
if(date==null)
|
||
{
|
||
return null;
|
||
}
|
||
if(strFormat == null)
|
||
{
|
||
strFormat = "yyyy-MM-dd";
|
||
}
|
||
SimpleDateFormat format = new SimpleDateFormat(strFormat);
|
||
return format.format(date);
|
||
}
|
||
|
||
/**
|
||
* 将字符串转化为Date类型。如果该字符串无法转化为Date类型的数据，则返回null。
|
||
* @param strDate
|
||
* @param strFormat
|
||
* strDate和strFormat的格式要一样。即如果strDate="20061112"，则strFormat="yyyyMMdd"
|
||
* @return
|
||
*/
|
||
public static Date stringToDate(String strDate, String strFormat)
|
||
{
|
||
Date date = null;
|
||
try
|
||
{
|
||
SimpleDateFormat sdf = new SimpleDateFormat(strFormat);
|
||
date = sdf.parse(strDate);
|
||
if (!sdf.format(date).equals(strDate))
|
||
{
|
||
date = null;
|
||
}
|
||
}
|
||
catch (Exception e)
|
||
{
|
||
date = null;
|
||
}
|
||
return date;
|
||
}
|
||
|
||
/**
|
||
* 获取n月之前或之后的日期
|
||
* @param date
|
||
* @param nMonth
|
||
* @param type(只能为-1或1)
|
||
* @return
|
||
*/
|
||
public static Date getDateMonth(Date date, int nMonth, int type)
|
||
{
|
||
Calendar calendar = Calendar.getInstance();
|
||
calendar.setTime(date);
|
||
int nYear = nMonth / 12;
|
||
int month = nMonth % 12;
|
||
calendar.add(Calendar.YEAR, nYear * type);
|
||
Date desDate = calendar.getTime();
|
||
calendar.add(Calendar.MONTH, month * type);
|
||
if(type < 0)
|
||
{
|
||
while(!calendar.getTime().before(desDate))
|
||
{
|
||
calendar.add(Calendar.YEAR, type);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
while(!calendar.getTime().after(desDate))
|
||
{
|
||
calendar.add(Calendar.YEAR, type);
|
||
}
|
||
}
|
||
return calendar.getTime();
|
||
}
|
||
|
||
/**
|
||
* 获取当前时间所在的周的最后一天（周一为第一天）
|
||
* @param date
|
||
* @return
|
||
*/
|
||
public static Date getLastDateOfWeek(Date date)
|
||
{
|
||
Calendar calendar = Calendar.getInstance();
|
||
calendar.setTime(date);
|
||
int index = calendar.get(Calendar.DAY_OF_WEEK);
|
||
index = (index == 1) ? (index + 7) : index;
|
||
date = DateUtil.dateAfterNDate(date, 8 - index,"yyyy-MM-dd");
|
||
return date;
|
||
}
|
||
/**
|
||
* 获取当前时间所在的周的第一天（周一为第一天）
|
||
* @param date
|
||
* @return
|
||
*/
|
||
public static Date getFirstDateOfWeek(Date date)
|
||
{
|
||
Calendar calendar = Calendar.getInstance();
|
||
calendar.setTime(date);
|
||
int index = calendar.get(Calendar.DAY_OF_WEEK);
|
||
index = (index == 1) ? (index + 7) : index;
|
||
date = DateUtil.dateBeforeNDate(date, index - 2,"yyyy-MM-dd");
|
||
return date;
|
||
}
|
||
|
||
/**
|
||
* 获取date所在的月份的最后一天
|
||
* 方法是获取下个月的第一天，然后获取前一天的日期
|
||
* @param date
|
||
* @return
|
||
*/
|
||
public static Date getLastDateOfMonth(Date date)
|
||
{
|
||
Calendar calendar = Calendar.getInstance();
|
||
calendar.setTime(date);
|
||
calendar.set(Calendar.DATE, 1);
|
||
date = calendar.getTime();
|
||
date = DateUtil.getDateMonth(date, 1, 1);
|
||
date = DateUtil.dateBeforeNDate(date, 1,"yyyy-MM-dd");
|
||
return date;
|
||
}
|
||
|
||
public static Date getFirstDateOfMonth(Date date)
|
||
{
|
||
Calendar calendar = Calendar.getInstance();
|
||
calendar.setTime(date);
|
||
calendar.set(Calendar.DATE, 1);
|
||
return calendar.getTime();
|
||
}
|
||
/**
|
||
* 获取季度的最后一天
|
||
* @param date
|
||
* @return
|
||
*/
|
||
public static Date getLastDateOfSeason(Date date)
|
||
{
|
||
Calendar calendar = Calendar.getInstance();
|
||
calendar.setTime(date);
|
||
int index = calendar.get(Calendar.MONTH);
|
||
index = index / 3;
|
||
Date[] dates = new Date[4];
|
||
calendar.set(calendar.get(Calendar.YEAR), 2, 31);
|
||
dates[0] = calendar.getTime();
|
||
calendar.set(calendar.get(Calendar.YEAR), 5, 30);
|
||
dates[1] = calendar.getTime();
|
||
calendar.set(calendar.get(Calendar.YEAR), 8, 30);
|
||
dates[2] = calendar.getTime();
|
||
calendar.set(calendar.get(Calendar.YEAR), 11, 31);
|
||
dates[3] = calendar.getTime();
|
||
return dates[index];
|
||
}
|
||
/**
|
||
* 创建日期date
|
||
* @param year：年
|
||
* @param month：月
|
||
* @param day：日
|
||
* @return
|
||
*/
|
||
public static Date createDate(int year, int month, int day)
|
||
{
|
||
Calendar calendar = Calendar.getInstance();
|
||
calendar.set(year, month, day);
|
||
return calendar.getTime();
|
||
}
|
||
|
||
/**获取N个月后日期
|
||
* @param date
|
||
* @param n
|
||
* @return
|
||
*/
|
||
public static Date getDateAfterMonths(Date date,int n){
|
||
|
||
GregorianCalendar grc=new GregorianCalendar();
|
||
grc.setTime(date);
|
||
grc.add(GregorianCalendar.MONTH,n);
|
||
return grc.getTime();
|
||
}
|
||
/**
|
||
* 返回excel cell在java中日期值
|
||
* @param DateNumber 日期cell 的值
|
||
* @return
|
||
*/
|
||
public static Date getExcelDateNumberToDate(int DateNumber){
|
||
//发现excel单元格的日期值1900-1-1值为2 java的月份是0-11表示 故初始值设置如下
|
||
Calendar calendar = new GregorianCalendar(1900,0,-1);
|
||
calendar.add(calendar.DATE,DateNumber);
|
||
return calendar.getTime();
|
||
}
|
||
/**
|
||
* 计算个时间的相差数
|
||
* @param diff
|
||
* @return
|
||
*/
|
||
public static String getTimes(Date beginDate,Date endDate){
|
||
Long diff=endDate.getTime()-beginDate.getTime();
|
||
Long day = diff / (24 * 60 * 60 * 1000);
|
||
Long hour = (diff / (60 * 60 * 1000) - day * 24);
|
||
Long min = ((diff / (60 * 1000)) - day * 24 * 60 - hour * 60);
|
||
|
||
return (day>0?day+"天":"")+(hour>0?hour+"小时":"")+min+"分钟";
|
||
}
|
||
|
||
|
||
|
||
|
||
/**
|
||
* 将日期变为当天最小时间，例如2015-08-15 09:32:18改为2015-08-15 00:00:00
|
||
*
|
||
* @param date
|
||
* @return
|
||
*/
|
||
public static Date minDate(Date date) {
|
||
if (null == date) {
|
||
return null;
|
||
} else {
|
||
Calendar calendar = Calendar.getInstance();
|
||
calendar.setTime(date);
|
||
calendar.set(Calendar.HOUR_OF_DAY, 0);
|
||
calendar.set(Calendar.MINUTE, 0);
|
||
calendar.set(Calendar.SECOND, 0);
|
||
calendar.set(Calendar.MILLISECOND, 000);
|
||
|
||
date = calendar.getTime();
|
||
return date;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 将日期变为当天最大时间，例如2015-08-15 09:32:18改为2015-08-15 23:59:59
|
||
*
|
||
* @param date
|
||
* @return
|
||
*/
|
||
public static Date maxDate(Date date) {
|
||
if (null == date) {
|
||
return null;
|
||
} else {
|
||
Calendar calendar = Calendar.getInstance();
|
||
calendar.setTime(date);
|
||
calendar.set(Calendar.HOUR_OF_DAY, 23);
|
||
calendar.set(Calendar.MINUTE, 59);
|
||
calendar.set(Calendar.SECOND, 59);
|
||
calendar.set(Calendar.MILLISECOND, 999);
|
||
|
||
date = calendar.getTime();
|
||
return date;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 获取比当前日期早多少分钟或者晚多少分钟 例如 前五分钟 －5 后五分钟 5
|
||
* @param format 返回日期的格式
|
||
* @return 日期
|
||
* @throws ParseException
|
||
*/
|
||
|
||
public static Date MinuteBefAft_returnDate(int minute) throws ParseException{
|
||
|
||
Calendar now = Calendar.getInstance();
|
||
now.add(Calendar.MINUTE,-minute);
|
||
return now.getTime();
|
||
}
|
||
|
||
public static void main(String[] args){
|
||
Date current=new Date();
|
||
current.setDate(current.getDate()+2);
|
||
//System.out.println(dateNum(new Date(),current));
|
||
|
||
//System.out.println(getFirstDateOfWeek(new Date()));
|
||
//System.out.println(getLastDateOfWeek(new Date()));
|
||
//System.out.println(getWeek(new Date()));
|
||
|
||
System.out.println(DateUtil.DateBefAft(1,"yyyy-MM-dd"));
|
||
|
||
}
|
||
}
|