DateUtils.java 9.07 KB
package com.lhcredit.common.utils;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import org.apache.commons.lang3.time.DateFormatUtils;

/**
 * 时间工具类
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";
    public static String CN_YYYY_MM_DD = "yyyy年MM月dd日";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     *
     * @return Date() 当前日期
     */
    public static Date getNowDate() {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     *
     * @return String
     */
    public static String getDate() {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime() {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow() {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format) {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date) {
        return parseDateToStr(YYYY_MM_DD, date);
    }
    public static final String dateChinaTime(final Date date) {
        String dateStr =  parseDateToStr(YYYYMMDDHHMMSS, date);
        String year = dateStr.substring(0,4);
        String month = dateStr.substring(4,6);
        String day = dateStr.substring(6,8);
        return String.format("%s年%s月%s日", year, month, day);
    }

    public static final String parseDateToStr(final String format, final Date date) {
        if (null==date){return null;}
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts) {
        try {
            return new SimpleDateFormat(format).parse(ts);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str) {
        if (str == null) {
            return null;
        }
        try {
            return parseDate(str.toString(), parsePatterns);
        } catch (ParseException e) {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate() {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }
    /**
     * 计算两个时间差几天
     */
    public static long  getDayPoor(Date endDate, Date startDate) {

        if(endDate==null||startDate==null){
            return 0;
        }
        long nd = 1000 * 24 * 60 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - startDate.getTime();
        // 计算差多少天
        long day = diff / nd;

        return day;
    }
    public static long  getDayPoorUp(Date endDate, Date startDate) {

        if(endDate==null||startDate==null){
            return 0;
        }
        long nd = 1000 * 24 * 60 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - startDate.getTime();
        // 计算差多少天
        long re=diff % nd;
        if(re==0){
            long day = diff / nd;
            return day;
        }else {
            long day = diff / nd+1;
            return day;
        }



    }
    /**
     * 计算两个时间差几年
     */
    public static long  getYearPoor(Date endDate, Date startDate) {

        Calendar  from  =  Calendar.getInstance();
        from.setTime(startDate);
        Calendar  to  =  Calendar.getInstance();
        to.setTime(endDate);
        long fromYear = from.get(Calendar.YEAR);
        long toYear = to.get(Calendar.YEAR);
        long year = toYear  -  fromYear;
        return year;
    }
    /**
     * 期限是否10年内
     */
    public static boolean  checkTen(Date endDate,Date startDate) {
        if(endDate==null||startDate==null){
            return true;
        }

        boolean result=true;
        Calendar calendar=Calendar.getInstance();
        calendar.setTime(startDate);
        calendar.add(Calendar.YEAR,10);
        calendar.set(Calendar.MONTH, calendar.getActualMaximum(Calendar.MONTH));
        calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
        //设置每天的最大小时
        calendar.set(Calendar.HOUR_OF_DAY, calendar.getActualMaximum(Calendar.HOUR_OF_DAY));
         //设置每小时最大分钟
        calendar.set(Calendar.MINUTE, calendar.getActualMaximum(Calendar.MINUTE));
         //设置每分钟最大秒
        calendar.set(Calendar.SECOND, calendar.getActualMaximum(Calendar.SECOND));
        long time= calendar.getTime().getTime();
        long endTime=endDate.getTime();
        if(endTime>time){
            result=false;
        }
        return result;
    }
    //获取 某天的后几天的日期
    public static Date getDate(Date date,int days){
        SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Calendar c = Calendar.getInstance();
        c.setTime(date);
         //System.out.println("当前日期:"+sf.format(c.getTime()));
        c.add(Calendar.DAY_OF_MONTH, days);
        //System.out.println("增加一天后日期:"+sf.format(c.getTime()));
        String format = sf.format(c.getTime());
        Date parse = null;
        try {
            parse = sf.parse(format);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return  parse;
    }
    //获取 某天前几天的日期
    public static Date getBeforeDate(Date date,int days){
        SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        //System.out.println("当前日期:"+sf.format(c.getTime()));
        c.add(Calendar.DAY_OF_MONTH, -days);
        //System.out.println("增加一天后日期:"+sf.format(c.getTime()));
        String format = sf.format(c.getTime());
        Date parse = null;
        try {
            parse = sf.parse(format);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return  parse;
    }
    public static Date getAfterMonth(Date date,int months){
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        c.add(Calendar.MONTH, months);
        Date d=c.getTime();
        return d;
    }
    public static Date getLastMouth(){

        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date date = new Date();
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date); // 设置为当前时间
        calendar.set(Calendar.MONTH, calendar.get(Calendar.MONTH) - 1); // 设置为上一个月      +为后一个月  0 为本月
        return date;
    }
    public static Date getYearAfter(Date now,int num){
        Calendar calendar=Calendar.getInstance();
        calendar.setTime(now);
        calendar.add(Calendar.YEAR,num);
        Date time = calendar.getTime();
        return time;
    }
    //验证日期是否在3年内
    public static boolean  valid3Year(Date date){
        if(getYearAfter(new Date(),-3).compareTo(date)>0){
            return false;
        }
        return true;
    }
    public static void main(String[] args) {
        System.err.println(parseDateToStr("yyyy-MM-dd",new Date()));
    }
}