109 lines
3.8 KiB
Java
109 lines
3.8 KiB
Java
package io.dataease.commons.utils;
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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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import java.util.HashMap;
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import java.util.Map;
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public class DateUtils {
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public static final String DATE_PATTERM = "yyyy-MM-dd";
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public static final String TIME_PATTERN = "yyyy-MM-dd HH:mm:ss";
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public static Date getDate(String dateString) throws Exception {
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SimpleDateFormat dateFormat = new SimpleDateFormat(DATE_PATTERM);
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return dateFormat.parse(dateString);
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}
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public static Date getTime(String timeString) throws Exception {
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SimpleDateFormat dateFormat = new SimpleDateFormat(TIME_PATTERN);
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return dateFormat.parse(timeString);
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}
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public static String getDateString(Date date) throws Exception {
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SimpleDateFormat dateFormat = new SimpleDateFormat(DATE_PATTERM);
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return dateFormat.format(date);
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}
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public static String getDateString(long timeStamp) throws Exception {
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SimpleDateFormat dateFormat = new SimpleDateFormat(DATE_PATTERM);
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return dateFormat.format(timeStamp);
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}
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public static String getTimeString(Date date) throws Exception {
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SimpleDateFormat dateFormat = new SimpleDateFormat(TIME_PATTERN);
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return dateFormat.format(date);
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}
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public static String getTimeString(long timeStamp) throws Exception {
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SimpleDateFormat dateFormat = new SimpleDateFormat(TIME_PATTERN);
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return dateFormat.format(timeStamp);
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}
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public static String getTimeStr(long timeStamp) {
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SimpleDateFormat dateFormat = new SimpleDateFormat(TIME_PATTERN);
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return dateFormat.format(timeStamp);
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}
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public static Date dateSum (Date date,int countDays){
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Calendar calendar = Calendar.getInstance();
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calendar.setTime(date);
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calendar.add(Calendar.DAY_OF_MONTH,countDays);
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return calendar.getTime();
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}
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/**
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* 获取入参日期所在周的周一周末日期。 日期对应的时间为当日的零点
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*
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* @return Map<String, String>(2); key取值范围：firstTime/lastTime
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*/
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public static Map<String, Date> getWeedFirstTimeAndLastTime(Date date) {
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Map<String, Date> returnMap = new HashMap<>();
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Calendar calendar = Calendar.getInstance();
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//Calendar默认一周的开始是周日。业务需求从周一开始算，所以要"+1"
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int weekDayAdd = 1;
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try {
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calendar.setTime(date);
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calendar.set(Calendar.DAY_OF_WEEK, calendar.getActualMinimum(Calendar.DAY_OF_WEEK));
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calendar.add(Calendar.DAY_OF_MONTH,weekDayAdd);
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//第一天的时分秒是 00:00:00 这里直接取日期，默认就是零点零分
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Date thisWeekFirstTime = getDate(getDateString(calendar.getTime()));
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calendar.clear();
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calendar.setTime(date);
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calendar.set(Calendar.DAY_OF_WEEK, calendar.getActualMaximum(Calendar.DAY_OF_WEEK));
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calendar.add(Calendar.DAY_OF_MONTH,weekDayAdd);
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//最后一天的时分秒应当是23:59:59。 处理方式是增加一天计算日期再-1
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calendar.add(Calendar.DAY_OF_MONTH,1);
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Date nextWeekFirstDay = getDate(getDateString(calendar.getTime()));
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Date thisWeekLastTime = getTime(getTimeString(nextWeekFirstDay.getTime()-1));
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returnMap.put("firstTime", thisWeekFirstTime);
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returnMap.put("lastTime", thisWeekLastTime);
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} catch (Exception e) {
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e.printStackTrace();
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}
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return returnMap;
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}
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/**
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* 获取当天的起始时间Date
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* @param time 指定日期 例： 2020-12-13 06:12:42
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* @return 当天起始时间 例： 2020-12-13 00:00:00
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* @throws Exception
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*/
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public static Date getDayStartTime(Date time) throws Exception {
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return getDate(getDateString(time));
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}
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}
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