Merge remote-tracking branch 'origin/master'

huanghongfa

2021-12-09 9576bebcacea938771f6f5b51d958e6a4ac59df6

 springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java

@@ -4,8 +4,10 @@
import java.text.SimpleDateFormat;
import java.time.*;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

import lombok.extern.slf4j.Slf4j;

@@ -23,8 +25,11 @@
    public static DateTimeFormatter format_ymd_String = DateTimeFormatter.ofPattern("yyMMdd");
    public static SimpleDateFormat yyyyMM_format = new SimpleDateFormat("yyyy-MM");
    public static SimpleDateFormat format_yyymmdd = new SimpleDateFormat("yyyyMMdd");
    public static SimpleDateFormat format_yyyy = new SimpleDateFormat("yyyy");
    private static DateTimeFormatter format_ymdhmssss = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSS");
    private static DateTimeFormatter format_ymds = DateTimeFormatter.ofPattern("yyyyMMdd");
    private static DateTimeFormatter format_yms = DateTimeFormatter.ofPattern("yyyyMM");
    private static DateTimeFormatter format_y = DateTimeFormatter.ofPattern("yyyy");

    /**
     * 将日期对象格式化成指定的字符串格式
@@ -886,9 +891,92 @@
    }

    public static void main(String[] args) throws Exception {
        // Date date= new Date();
        // Date after = new Date();
        // System.out.println(getFirstDayOfMonthString());
        // System.out.println(getDayOfMonthString());
         Date date= getLastMonthFirst();
         Date after = getLastMonthEnd();
         System.out.println(date);
         System.out.println(after);


    }

    /**
     * 获取当前年月字符串
     * @return  年月字符串
     */
    public static String getCurrentDateString_YYYY_MM() {
        String nowtime = getCurrentDate().format(format_yms);
        return nowtime;
    }

    /**
     * 获取当前年字符串
     * @return
     */
    public static String getCurrentDateString_YYYY() {
        String nowtime = getCurrentDate().format(format_y);
        return nowtime;
    }

    /**
     * 获取当前年第一天
     * @return  当前年第一天时间
     */
    public static Date getFirstDayOfYear() {
        Calendar currCal=Calendar.getInstance();
        int currentYear = currCal.get(Calendar.YEAR);
        return getYearFirst(currentYear);
    }

    /**
     * 获取某年第一天日期
     * @param year 年份
     * @return Date
     */
    public static Date getYearFirst(int year){
        Calendar calendar = Calendar.getInstance();
        calendar.clear();
        calendar.set(Calendar.YEAR, year);
        Date currYearFirst = calendar.getTime();
        return currYearFirst;
    }

    /**
     * 获取上月第一天时间
     * @return  上月第一天时间
     */
    public static Date getLastMonthFirst(){
        // 上月起始
        Calendar lastMonthFirstDateCal = Calendar.getInstance();
        lastMonthFirstDateCal.add(Calendar.MONTH,-1);
        lastMonthFirstDateCal.set(Calendar.DAY_OF_MONTH, 1);
        String lastMonthFirstTime = yyyyMMdd_format.format(lastMonthFirstDateCal.getTime()) + " 00:00:00";
        return stringToDateStandard(lastMonthFirstTime);
    }

    /**
     * 获取上月最后一天时间
     * @return  最后一天时间
     */
    public static Date getLastMonthEnd(){
        // 上月末尾
        Calendar lastMonthEndDateCal = Calendar.getInstance();
        lastMonthEndDateCal.add(Calendar.MONTH,-1);
        lastMonthEndDateCal.set(Calendar.DAY_OF_MONTH, lastMonthEndDateCal.getActualMaximum(Calendar.DAY_OF_MONTH));
        String lastMonthEndTime = yyyyMMdd_format.format(lastMonthEndDateCal.getTime()) + " 23:59:59";
        return stringToDateStandard(lastMonthEndTime);
    }

    /**
     * 获取近20天日期
     * @return  近20天日期
     */
    public static List<Date> getOldDays() {
        List<Date> dates = new ArrayList<>();
        Date date = new Date();
        for (int i = 19; i >= 0; i--) {
            Date date1 = DateUtils.addDay(date, -i);
            dates.add(date1);
        }
        return dates;
    }
}