wms / hhwms · Files

package com.huaheng.common.utils;

import java.text.ParseException;
import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

import java.util.Map;

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

/**
 * 时间工具类
 * 
 * @author huaheng
 */

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 YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

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

    public static String YYYY_MM_DD_HH_MM_SS_S = "yyyy-MM-dd HH:mm:ss.s";

    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 parseDateToStr(final String format, final Date date)
    {
        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;
        }
    }

    /**
     * 计算两个时间差
     * @param date1
     * @param date2
     * @return
     */
    public static long difference(Date date1, Date date2) {
        long from3 = date1.getTime();
        long to3 = date2.getTime();
        int second = (int) ((to3 - from3) / 1000);
        return Math.abs(second);
    }

    public static String getNowDateString(String pattern)
    {
        Date now = new Date();
        return DateFormatUtils.format(now, pattern);
    }

    public static String getNowPreDay(String pattern)
    {
        Date dNow = new Date();   //当前时间
        Date dBefore = new Date();
        Calendar calendar = Calendar.getInstance(); //得到日历
        calendar.setTime(dNow);//把当前时间赋给日历
        calendar.add(Calendar.DAY_OF_MONTH, -1);  //设置为前一天
        dBefore = calendar.getTime();   //得到前一天的时间

        SimpleDateFormat sdf=new SimpleDateFormat(pattern); //设置时间格式
        String defaultStartDate = sdf.format(dBefore);
        return defaultStartDate;
    }

    public static String getNowPreWeek(String pattern)
    {
        Date dNow = new Date();   //当前时间
        Date dBefore = new Date();
        Calendar calendar = Calendar.getInstance(); //得到日历
        calendar.setTime(dNow);//把当前时间赋给日历
        calendar.add(Calendar.DAY_OF_MONTH, -7);  //设置为前一天
        dBefore = calendar.getTime();   //得到前一天的时间

        SimpleDateFormat sdf=new SimpleDateFormat(pattern); //设置时间格式
        String defaultStartDate = sdf.format(dBefore);
        return defaultStartDate;
    }

    public static String getNowPreDays(String pattern,int days)
    {
        Date dNow = new Date();   //当前时间
        Date dBefore = new Date();
        Calendar calendar = Calendar.getInstance(); //得到日历
        calendar.setTime(dNow);//把当前时间赋给日历
        calendar.add(Calendar.DAY_OF_MONTH, -days);  //设置为前一天
        dBefore = calendar.getTime();   //得到前一天的时间

        SimpleDateFormat sdf=new SimpleDateFormat(pattern); //设置时间格式
        String defaultStartDate = sdf.format(dBefore);
        return defaultStartDate;
    }

}