com.project.framework.util.DateUtils.java Source code

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Here is the source code for com.project.framework.util.DateUtils.java

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/**
 * Copyright 2008 - 2011 Simcore.org.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.project.framework.util;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import org.apache.commons.lang3.StringUtils;

/**
 * ?
 * <p>
 * ?Commons-Lang??.
 * 
 * @author ray
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
    /**
     * ????
     * 
     * @param start
     *            
     * @param end
     *            
     * @return start<end0start=endstart>end
     */
    public static int compare(Date start, Date end) {
        Calendar c1 = Calendar.getInstance();
        c1.setTime(start);
        Calendar c2 = Calendar.getInstance();
        c2.setTime(end);
        int year1 = c1.get(Calendar.YEAR);
        int year2 = c2.get(Calendar.YEAR);
        if (year1 != year2) {
            return year1 - year2;
        }
        int month1 = c1.get(Calendar.MONTH);
        int month2 = c2.get(Calendar.MONTH);
        if (month1 != month2) {
            return month1 - month2;
        }
        int day1 = c1.get(Calendar.DAY_OF_MONTH);
        int day2 = c2.get(Calendar.DAY_OF_MONTH);
        return day1 - day2;
    }

    /**
     * ?
     * @return
     */
    public static Date getSystemTime() {
        return new Date();
    }

    /**
     * , yyyy-MM-dd HH:mm:ss ??
     * @param strDate  
     * @param format   ?
     * @return
     */
    public static String dateStringFormat(Date date, String format) {
        if (date == null)
            return "";
        SimpleDateFormat sdf = null;
        if (StringUtils.isNotBlank(format))
            sdf = new SimpleDateFormat(format);
        else
            sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        return sdf.format(date);
    }

    /**
     * , yyyy-MM-dd HH:mm:ss ??
     * @param strDate  
     * @param format   ?
     * @return
     */
    public static String dateStringFormat(Date strDate) {
        if (strDate == null)
            return "";
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        return sdf.format(strDate);
    }

    /**
     * , yyyyMMddHHmmss ??
     * @param strDate  
     * @param format   ?
     * @return
     */
    public static String dateStringFormatF(Date strDate) {
        if (strDate == null)
            return "";
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
        return sdf.format(strDate);
    }

    /**
     * ,format null, yyyy-MM-dd HH:mm:ss ??
     * @param strDate  
     * @param format   ?
     * @return
     */
    public static Date stringDateFormat(String strDate, String format) {
        if (StringUtil.isNullOrEmpty(strDate)) {
            return null;
        }
        SimpleDateFormat sdf = null;
        if (format == null)
            sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        else
            sdf = new SimpleDateFormat(format);
        try {
            return sdf.parse(strDate);
        } catch (ParseException e) {
            return null;
        }
    }

    /**
     * ??.
     * 
     * @param date ?
     * @return Date ??
     */
    public static Date getYesterday(Date date) {
        return addDays(date, -1);
    }

    /**
     * ??.
     * 
     * @param date ?
     * @return Date ??
     */
    public static Date getTomorrow(Date date) {
        return addDays(date, 1);
    }

    /**
     * ??.
     * 
     * @param date ?
     * @return Date ??
     */
    public static Date getBeforeYesterday(Date date) {
        return addDays(date, -2);
    }

    /**
     * ??.
     * 
     * @param date ?
     * @return Date ??
     */
    public static Date getAfertTomorrow(Date date) {
        return addDays(date, 2);
    }

    /**
     * ??.
     * 
     * @param date ?
     * @return Date ??
     */
    public static Date getMonthFistDay(Date date) {
        return setDays(date, 1);
    }

    /**
     * ?.
     * 
     * @param date ?
     * @return Date ?
     */
    public static Date getMonthLastDay(Date date) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        int actualMaximum = calendar.getActualMaximum(Calendar.DATE);
        return setDays(date, actualMaximum);
    }

    /**
     * ??(?).
     * 
     * @param date ?
     * @return Date ??
     */
    public static Date getBeforeTrad(Date date) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        do {
            calendar.roll(Calendar.DATE, false);
        } while (calendar.get(Calendar.DAY_OF_WEEK) == 1 || calendar.get(Calendar.DAY_OF_WEEK) == 7);

        return calendar.getTime();
    }

    /**
     * ??(?)
     * 
     * @param date ?
     * @return Date ??
     */
    public static Date getAfterTrad(Date date) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        do {
            calendar.roll(Calendar.DATE, true);
        } while (calendar.get(Calendar.DAY_OF_WEEK) == 1 || calendar.get(Calendar.DAY_OF_WEEK) == 7);

        return calendar.getTime();
    }

    /**
     * ??(?)
     * 
     * @param date ?
     * @return Date ??
     */
    public static Date getMonthFirstTrad(Date date) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(getMonthFistDay(date));

        while (calendar.get(Calendar.DAY_OF_WEEK) == 1 || calendar.get(Calendar.DAY_OF_WEEK) == 7) {
            calendar.roll(Calendar.DATE, true);
        }

        return calendar.getTime();
    }

    /**
     * ??(?)
     * 
     * @param date ?
     * @return Date ??
     */
    public static Date getMonthLastTrad(Date date) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(getMonthLastDay(date));

        while (calendar.get(Calendar.DAY_OF_WEEK) == 1 || calendar.get(Calendar.DAY_OF_WEEK) == 7) {
            calendar.roll(Calendar.DATE, false);
        }

        return calendar.getTime();
    }

    /**
     * ?
     * @param start
     * @param end
     * @return
     */
    public static long dateReduction(Date start, Date end) {
        long l = end.getTime() - start.getTime();
        return l / 1000 / 60;
    }

    /**
     * ????
     * @param date
     * @param second
     * @return date
     * @authorJiaYunqi
     */
    public static Date getAddSecond(Date date, int second) {
        Calendar calendar = Calendar.getInstance();
        if (date != null) {
            calendar.setTime(date);
        }
        calendar.add(Calendar.SECOND, second);
        return calendar.getTime();
    }

    /**
     * ???
     * @param time
     * @return
     */
    public static Date getBeforeDate(int time) {
        Calendar c = Calendar.getInstance();
        c.add(Calendar.MINUTE, (-1 * time));
        return c.getTime();
    }
}