com.zqxx.common.utils.DateUtils.java Source code

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Here is the source code for com.zqxx.common.utils.DateUtils.java

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/**
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 */
package com.zqxx.common.utils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

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

/**
 * , org.apache.commons.lang.time.DateUtils
 */
public class DateUtils extends org.apache.commons.lang.time.DateUtils {

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

    /**
     * ? ?yyyy-MM-dd
     */
    public static String getDate() {
        return getDate("yyyy-MM-dd");
    }

    /**
     * ? ?yyyy-MM-dd pattern?"yyyy-MM-dd" "HH:mm:ss" "E"
     */
    public static String getDate(String pattern) {
        return DateFormatUtils.format(new Date(), pattern);
    }

    /**
     *  ?yyyy-MM-dd pattern?"yyyy-MM-dd" "HH:mm:ss" "E"
     */
    public static String formatDate(Date date, Object... pattern) {
        String formatDate = null;
        if (pattern != null && pattern.length > 0) {
            formatDate = DateFormatUtils.format(date, pattern[0].toString());
        } else {
            formatDate = DateFormatUtils.format(date, "yyyy-MM-dd");
        }
        return formatDate;
    }

    /**
     * ??yyyy-MM-dd HH:mm:ss
     */
    public static String formatDateTime(Date date) {
        return formatDate(date, "yyyy-MM-dd HH:mm:ss");
    }

    /**
     * ? ?HH:mm:ss
     */
    public static String getTime() {
        return formatDate(new Date(), "HH:mm:ss");
    }

    /**
     * ? ?yyyy-MM-dd HH:mm:ss
     */
    public static String getDateTime() {
        return formatDate(new Date(), "yyyy-MM-dd HH:mm:ss");
    }

    /**
     * ? ?yyyy
     */
    public static String getYear() {
        return formatDate(new Date(), "yyyy");
    }

    /**
     * ? ?MM
     */
    public static String getMonth() {
        return formatDate(new Date(), "MM");
    }

    /**
     *  ?dd
     */
    public static String getDay() {
        return formatDate(new Date(), "dd");
    }

    /**
     * ? ?E
     */
    public static String getWeek() {
        return formatDate(new Date(), "E");
    }

    /**
     *  ?
     * { "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", 
     *   "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm" }
     */
    public static Date parseDate(Object str) {
        if (str == null) {
            return null;
        }
        try {
            return parseDate(str.toString(), parsePatterns);
        } catch (ParseException e) {
            return null;
        }
    }

    /**
     * ?
     * @param date
     * @return
     */
    public static long pastDays(Date date) {
        long t = new Date().getTime() - date.getTime();
        return t / (24 * 60 * 60 * 1000);
    }

    public static Date getDateStart(Date date) {
        if (date == null) {
            return null;
        }
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        try {
            date = sdf.parse(formatDate(date, "yyyy-MM-dd") + " 00:00:00");
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date;
    }

    public static Date getDateEnd(Date date) {
        if (date == null) {
            return null;
        }
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        try {
            date = sdf.parse(formatDate(date, "yyyy-MM-dd") + " 23:59:59");
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date;
    }

    /**
     * ?,::.
     * @param timeMillis
     * @return
     */
    public static String formatDateTime(long timeMillis) {
        long day = timeMillis / (24 * 60 * 60 * 1000);
        long hour = (timeMillis / (60 * 60 * 1000) - day * 24);
        long min = ((timeMillis / (60 * 1000)) - day * 24 * 60 - hour * 60);
        long s = (timeMillis / 1000 - day * 24 * 60 * 60 - hour * 60 * 60 - min * 60);
        long sss = (timeMillis - day * 24 * 60 * 60 * 1000 - hour * 60 * 60 * 1000 - min * 60 * 1000 - s * 1000);
        return (day > 0 ? day + "," : "") + hour + ":" + min + ":" + s + "." + sss;
    }

    /**
     * @param args
     * @throws ParseException
     */
    public static void main(String[] args) throws ParseException {
        //      System.out.println(formatDate(parseDate("2010/3/6")));
        //      System.out.println(getDate("yyyyMMdd E"));
        //      long time = new Date().getTime()-parseDate("2012-11-19").getTime();
        //      System.out.println(time/(24*60*60*1000));
    }
}