541 lines
14 KiB
Java
541 lines
14 KiB
Java
package com.zcloud.util;
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import java.text.DateFormat;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.Date;
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/**
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* 说明：日期处理(临时处理时间) 作者：zhangyue 官网：www.qdkjchina.com
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*/
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public class DateSysUtil {
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private final static SimpleDateFormat sdfYear = new SimpleDateFormat("yyyy");
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private final static SimpleDateFormat sdfMonth = new SimpleDateFormat("MM");
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private final static SimpleDateFormat sdfOnlyDay = new SimpleDateFormat("dd");
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private final static SimpleDateFormat sdfDay = new SimpleDateFormat("yyyy-MM-dd");
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private final static SimpleDateFormat sdfMDay = new SimpleDateFormat("yyyy-M-d");
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private final static SimpleDateFormat sdfDays = new SimpleDateFormat("yyyyMMdd");
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private final static SimpleDateFormat sdfTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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private final static SimpleDateFormat sdfTimes = new SimpleDateFormat("yyyyMMddHHmmss");
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/**
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* 获取YYYY格式
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*
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* @return
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*/
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public static String getSdfTimes() {
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return sdfTimes.format(new Date());
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}
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/**
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* 获取YYYY格式
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*
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* @return
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*/
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public static String getYear(int i) {
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Calendar c = Calendar.getInstance();
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c.add(Calendar.DAY_OF_MONTH, -i);
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return sdfYear.format(c.getTime());
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}
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public static String getMonth(int i) {
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Calendar c = Calendar.getInstance();
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c.add(Calendar.DAY_OF_MONTH, -i);
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return sdfMonth.format(c.getTime());
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}
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/**
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* 获取DD格式
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*
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* @return
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*/
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public static String getOnlyDay(int i) {
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Calendar c = Calendar.getInstance();
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c.add(Calendar.DAY_OF_MONTH, -i);
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return sdfOnlyDay.format(c.getTime());
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}
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/**
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* 获取YYYY-MM-DD格式
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*
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* @return
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*/
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public static String getDay(int i) {
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Calendar c = Calendar.getInstance();
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c.add(Calendar.DAY_OF_MONTH, -i);
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return sdfDay.format(c.getTime());
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}
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public static String MDay() {
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return sdfMDay.format(new Date());
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}
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/**
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* 获取YYYYMMDD格式
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*
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* @return
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*/
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public static String getDays() {
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return sdfDays.format(new Date());
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}
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/**
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* 获取YYYY-MM-DD HH:mm:ss格式
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*
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* @return
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*/
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public static String getTime() {
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return sdfTime.format(new Date());
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}
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/**
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* @Title: compareDate
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* @Description: TODO(日期比较，如果s>=e 返回true 否则返回false)
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* @param s
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* @param e
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* @return boolean
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* @throws @author fh
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*/
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public static boolean compareDate(String s, String e) {
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if (fomatDate(s) == null || fomatDate(e) == null) {
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return false;
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}
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return fomatDate(s).getTime() >= fomatDate(e).getTime();
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}
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/**
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* 格式化日期
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*
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* @return
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*/
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public static Date fomatDate(String date) {
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DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd");
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try {
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return fmt.parse(date);
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} catch (ParseException e) {
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e.printStackTrace();
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return null;
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}
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}
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/**
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* 格式化日期
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*
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* @return
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*/
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public static Date fomatDateTime(String date) {
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DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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try {
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return fmt.parse(date);
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} catch (ParseException e) {
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e.printStackTrace();
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return null;
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}
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}
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/**
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* 校验日期是否合法
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*
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* @return
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*/
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public static boolean isValidDate(String s) {
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DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd");
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try {
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fmt.parse(s);
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return true;
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} catch (Exception e) {
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return false; // 如果throw java.text.ParseException或者NullPointerException，就说明格式不对
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}
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}
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/**
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* @param startTime
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* @param endTime
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* @return
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*/
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public static int getDiffYear(String startTime, String endTime) {
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DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd");
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try {
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int years = (int) (((fmt.parse(endTime).getTime() - fmt.parse(startTime).getTime()) / (1000 * 60 * 60 * 24))
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/ 365);
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return years;
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} catch (Exception e) {
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return 0; // 如果throw java.text.ParseException或者NullPointerException，就说明格式不对
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}
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}
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/**
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* <li>功能描述：时间相减得到天数
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*
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* @param beginDateStr
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* @param endDateStr
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* @return long
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* @author Administrator
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*/
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public static long getDaySub(String beginDateStr, String endDateStr) {
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long day = 0;
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java.text.SimpleDateFormat format = new java.text.SimpleDateFormat("yyyy-MM-dd");
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java.util.Date beginDate = null;
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java.util.Date endDate = null;
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try {
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beginDate = format.parse(beginDateStr);
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endDate = format.parse(endDateStr);
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} catch (ParseException e) {
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e.printStackTrace();
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}
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day = (endDate.getTime() - beginDate.getTime()) / (24 * 60 * 60 * 1000);
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// System.out.println("相隔的天数="+day);
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return day;
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}
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/**
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* 得到n天之后的日期
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*
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* @param days
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* @return
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*/
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public static String getAfterDayDate(String days) {
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int daysInt = Integer.parseInt(days);
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Calendar canlendar = Calendar.getInstance(); // java.util包
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canlendar.add(Calendar.DATE, daysInt); // 日期减 如果不够减会将月变动
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Date date = canlendar.getTime();
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SimpleDateFormat sdfd = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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String dateStr = sdfd.format(date);
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return dateStr;
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}
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/**
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* 得到n天之后是周几
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*
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* @param days
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* @return
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*/
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public static String getAfterDayWeek(String days) {
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int daysInt = Integer.parseInt(days);
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Calendar canlendar = Calendar.getInstance(); // java.util包
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canlendar.add(Calendar.DATE, daysInt); // 日期减 如果不够减会将月变动
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Date date = canlendar.getTime();
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SimpleDateFormat sdf = new SimpleDateFormat("E");
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String dateStr = sdf.format(date);
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return dateStr;
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}
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/**
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* 按照yyyy-MM-dd HH:mm:ss的格式，日期转字符串
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*
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* @param date
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* @return yyyy-MM-dd HH:mm:ss
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*/
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public static String date2Str(Date date) {
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return date2Str(date, "yyyy-MM-dd HH:mm:ss");
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}
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public static String date3Str(Date date) {
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return date2Str(date, "yyyy-M-d");
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}
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/**
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* 按照yyyy-MM-dd HH:mm:ss的格式，字符串转日期
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*
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* @param date
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* @return
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*/
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public static Date str2Date(String date) {
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if (Tools.notEmpty(date)) {
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SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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try {
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return sdf.parse(date);
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return new Date();
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} else {
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return null;
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}
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}
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/**
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* 把时间根据时、分、秒转换为时间段
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*
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* @param StrDate
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*/
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public static String getTimes(String StrDate) {
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String resultTimes = "";
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SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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java.util.Date now;
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try {
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now = new Date();
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java.util.Date date = df.parse(StrDate);
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long times = now.getTime() - date.getTime();
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long day = times / (24 * 60 * 60 * 1000);
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long hour = (times / (60 * 60 * 1000) - day * 24);
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long min = ((times / (60 * 1000)) - day * 24 * 60 - hour * 60);
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long sec = (times / 1000 - day * 24 * 60 * 60 - hour * 60 * 60 - min * 60);
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StringBuffer sb = new StringBuffer();
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// sb.append("发表于：");
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if (hour > 0) {
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sb.append(hour + "小时前");
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} else if (min > 0) {
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sb.append(min + "分钟前");
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} else {
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sb.append(sec + "秒前");
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}
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resultTimes = sb.toString();
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return resultTimes;
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}
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/**
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* 按照参数format的格式，日期转字符串
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*
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* @param date
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* @param format
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* @return
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*/
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public static String date2Str(Date date, String format) {
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if (date != null) {
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SimpleDateFormat sdf = new SimpleDateFormat(format);
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return sdf.format(date);
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} else {
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return "";
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}
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}
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/**
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* 获取当年的第一天
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*
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* @param year
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* @author zhangyue
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* @return
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*/
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public static String getCurrYearFirst(int i) {
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final Calendar cal = Calendar.getInstance();
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cal.add(Calendar.DAY_OF_MONTH, -i);
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final int last = cal.getActualMinimum(Calendar.DAY_OF_YEAR);
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cal.set(Calendar.DAY_OF_YEAR, last);
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return sdfDay.format(cal.getTime());
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}
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/**
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* 获取当年的最后一天
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*
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* @param year
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* @author zhangyue
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* @return
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*/
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public static String getCurrYearLast(int i) {
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final Calendar cal = Calendar.getInstance();
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cal.add(Calendar.DAY_OF_MONTH, -i);
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final int last = cal.getActualMaximum(Calendar.DAY_OF_YEAR);
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cal.set(Calendar.DAY_OF_YEAR, last);
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return sdfDay.format(cal.getTime());
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}
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/**
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* 获取当前季度第一天
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*
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* @author zhangyue
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* @return
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*/
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public static String quarterStart(int i) {
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Date dBegin = new Date();
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Calendar calBegin = Calendar.getInstance();
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calBegin.add(Calendar.DAY_OF_MONTH, -i);
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// calBegin.setTime(dBegin);
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int remainder = calBegin.get(Calendar.MONTH) % 3;
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int month = remainder != 0 ? calBegin.get(Calendar.MONTH) - remainder : calBegin.get(Calendar.MONTH);
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calBegin.set(Calendar.MONTH, month);
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calBegin.set(Calendar.DAY_OF_MONTH, calBegin.getActualMinimum(Calendar.DAY_OF_MONTH));
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calBegin.setTime(calBegin.getTime());
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return sdfDay.format(calBegin.getTime());
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}
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/**
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* 获取当前季度最后一天
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*
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* @author zhangyue
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* @return
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*/
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public static String quarterEnd(int i) {
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Date dEnd = new Date();
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Calendar calendar = Calendar.getInstance();
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calendar.add(Calendar.DAY_OF_MONTH, -i);
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// calendar.setTime(dEnd);
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int remainder = (calendar.get(Calendar.MONTH) + 1) % 3;
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int month = remainder != 0 ? calendar.get(Calendar.MONTH) + (3 - remainder) : calendar.get(Calendar.MONTH);
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calendar.set(Calendar.MONTH, month);
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calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
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calendar.setTime(calendar.getTime());
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return sdfDay.format(calendar.getTime());
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}
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/**
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* 获取本月第一天日期
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*
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* @return
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*/
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public static String getMonthFirstDay(int i) {
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/*
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* String date_str = "2019-02-15";
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*/
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Calendar cale = Calendar.getInstance();
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SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
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// cale.setTime(formatter.parse(date_str));
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Calendar c = Calendar.getInstance();
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cale.add(Calendar.DAY_OF_MONTH, -i);
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cale.add(Calendar.MONTH, 0);
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cale.set(Calendar.DAY_OF_MONTH, 1);
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String firstDayOfMonth = formatter.format(cale.getTime()); // 当月第一天 2019-02-01
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/*
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* cale.add(Calendar.MONTH, 1);
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*
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* cale.set(Calendar.DAY_OF_MONTH, 0);
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*
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* String lastDayOfMonth = formatter.format(cale.getTime()); // 当月最后一天
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* 2019-02-28
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*/ return sdfDay.format(cale.getTime());
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}
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/**
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* 获取本月最后一天日期
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*
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* @return
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*/
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public static String getMonthEndDay(int i) {
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/*
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* String date_str = "2019-02-15";
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*/
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Calendar cale = Calendar.getInstance();
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SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
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// cale.setTime(formatter.parse(date_str));
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Calendar c = Calendar.getInstance();
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cale.add(Calendar.DAY_OF_MONTH, -i);
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/*
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* cale.add(Calendar.MONTH, 0);
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*
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* cale.set(Calendar.DAY_OF_MONTH, 1);
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*
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* String firstDayOfMonth = formatter.format(cale.getTime()); // 当月第一天
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* 2019-02-01
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*/
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cale.add(Calendar.MONTH, 1);
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cale.set(Calendar.DAY_OF_MONTH, 0);
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String lastDayOfMonth = formatter.format(cale.getTime()); // 当月最后一天 2019-02-28
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return sdfDay.format(cale.getTime());
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}
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||
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public static boolean timeCalendar(Date nowTime, Date amBeginTime, Date amEndTime) {
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// 设置当前时间
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Calendar date = Calendar.getInstance();
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date.setTime(nowTime);
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// 设置开始时间
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Calendar amBegin = Calendar.getInstance();
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amBegin.setTime(amBeginTime);// 上午开始时间
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// 设置结束时间
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Calendar amEnd = Calendar.getInstance();
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amEnd.setTime(amEndTime);// 上午结束时间
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// 处于开始时间之后，和结束时间之前的判断
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if ((date.after(amBegin) && date.before(amEnd))) {
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||
return true;
|
||
} else {
|
||
return false;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 获取本周的第一天
|
||
*
|
||
* @return String
|
||
**/
|
||
public static String getWeekStart(int i) {
|
||
|
||
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); // 设置时间格式
|
||
Calendar cal = Calendar.getInstance();
|
||
// Calendar c = Calendar.getInstance();
|
||
cal.add(Calendar.DAY_OF_MONTH, -i);
|
||
// cal.setTime(time);
|
||
|
||
// 判断要计算的日期是否是周日，如果是则减一天计算周六的，否则会出问题，计算到下一周去了
|
||
int dayWeek = cal.get(Calendar.DAY_OF_WEEK);// 获得当前日期是一个星期的第几天
|
||
if (1 == dayWeek) {
|
||
cal.add(Calendar.DAY_OF_MONTH, -1);
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||
}
|
||
|
||
cal.setFirstDayOfWeek(Calendar.MONDAY);// 设置一个星期的第一天，按中国的习惯一个星期的第一天是星期一
|
||
|
||
int day = cal.get(Calendar.DAY_OF_WEEK);// 获得当前日期是一个星期的第几天
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||
cal.add(Calendar.DATE, cal.getFirstDayOfWeek() - day);// 根据日历的规则，给当前日期减去星期几与一个星期第一天的差值
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||
/*
|
||
* cal.add(Calendar.DATE, 6);
|
||
* System.out.println("所在周星期日的日期："+sdf.format(cal.getTime()));
|
||
*/
|
||
|
||
return new SimpleDateFormat("yyyy-MM-dd").format(cal.getTime()) + " 00:00:00";
|
||
}
|
||
|
||
/**
|
||
* 获取本周的最后一天
|
||
*
|
||
* @return String
|
||
**/
|
||
public static String getWeekEnd(int i) {
|
||
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); // 设置时间格式
|
||
Calendar cal = Calendar.getInstance();
|
||
// Calendar c = Calendar.getInstance();
|
||
cal.add(Calendar.DAY_OF_MONTH, -i);
|
||
// cal.setTime(time);
|
||
|
||
// 判断要计算的日期是否是周日，如果是则减一天计算周六的，否则会出问题，计算到下一周去了
|
||
int dayWeek = cal.get(Calendar.DAY_OF_WEEK);// 获得当前日期是一个星期的第几天
|
||
if (1 == dayWeek) {
|
||
cal.add(Calendar.DAY_OF_MONTH, -1);
|
||
}
|
||
|
||
cal.setFirstDayOfWeek(Calendar.MONDAY);// 设置一个星期的第一天，按中国的习惯一个星期的第一天是星期一
|
||
|
||
int day = cal.get(Calendar.DAY_OF_WEEK);// 获得当前日期是一个星期的第几天
|
||
cal.add(Calendar.DATE, cal.getFirstDayOfWeek() - day);// 根据日历的规则，给当前日期减去星期几与一个星期第一天的差值
|
||
|
||
cal.add(Calendar.DATE, 6);
|
||
|
||
return new SimpleDateFormat("yyyy-MM-dd").format(cal.getTime()) + " 23:59:59";
|
||
}
|
||
|
||
public static void main(String[] args) throws ParseException {
|
||
System.out.println(getCurrYearLast(10));
|
||
// System.out.println(getMonth(10));
|
||
// System.out.println(getOnlyDay(10));
|
||
}
|
||
|
||
}
|