meidu2021/daju/src-xcgl/main/java/com/xcgl/weeklyMeeting/util/AcquisitionTime.java

package com.xcgl.weeklyMeeting.util;

import java.sql.Timestamp;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class AcquisitionTime {

    static final SimpleDateFormat F = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    // 获取本周的开始时间
    public static String getBeginDayOfWeek() {
        Date date = new Date();
        if (date == null) {
            return null;
        }
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        int dayofweek = cal.get(Calendar.DAY_OF_WEEK);
        if (dayofweek == 1) {
            dayofweek += 7;
        }
        cal.add(Calendar.DATE, 2 - dayofweek);
        return F.format(getDayStartTime(cal.getTime()));
    }

    // 获取本周的结束时间
    public static String getEndDayOfWeek(){
        Calendar cal = Calendar.getInstance();
        try{
            cal.setTime(F.parse(getBeginDayOfWeek()));
        }catch (ParseException e){

        }
        cal.add(Calendar.DAY_OF_WEEK, 6);
        Date weekEndSta = cal.getTime();
        return F.format(getDayEndTime(weekEndSta));
    }

    // 获取上周的开始时间
    public static String getBeginDayOfLastWeek() {
        Date date = new Date();
        if (date == null) {
            return null;
        }
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        int dayofweek = cal.get(Calendar.DAY_OF_WEEK);
        if (dayofweek == 1) {
            dayofweek += 7;
        }
        cal.add(Calendar.DATE, 2 - dayofweek - 7);
        return F.format(getDayStartTime(cal.getTime()));
    }

    // 获取上周的结束时间
    public static String getEndDayOfLastWeek() {
        Calendar cal = Calendar.getInstance();
        try{
            cal.setTime(F.parse(getBeginDayOfLastWeek()));
        }catch (ParseException e){

        }
        cal.add(Calendar.DAY_OF_WEEK, 6);
        Date weekEndSta = cal.getTime();
        return F.format(getDayEndTime(weekEndSta));
    }

    // 获取某个日期的开始时间
    public static Timestamp getDayStartTime(Date d) {
        Calendar calendar = Calendar.getInstance();
        if (null != d)
            calendar.setTime(d);
        calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH),
                calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
        calendar.set(Calendar.MILLISECOND, 0);
        return new Timestamp(calendar.getTimeInMillis());
    }

    // 获取某个日期的结束时间
    public static Timestamp getDayEndTime(Date d) {
        Calendar calendar = Calendar.getInstance();
        if (null != d)
            calendar.setTime(d);
        calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH),
                calendar.get(Calendar.DAY_OF_MONTH), 23, 59, 59);
        calendar.set(Calendar.MILLISECOND, 999);
        return new Timestamp(calendar.getTimeInMillis());
    }

}