JAVA 时间差距，两个时间相差多少天，时，分，秒

package io;

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

/**
 * 时间相距
 * 
 * @author Ben
 * @version 1.0
 * @date 2009-10-21 16:38:51
 */
public class DateDistance {

    /**
     * 两个时间之间相差距离多少天
     * 
     * @param one
     *            时间参数 1：
     * @param two
     *            时间参数 2：
     * @return 相差天数
     */
    public static long getDistanceDays(String str1, String str2)
            throws Exception {
        DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
        Date one;
        Date two;
        long days = 0;
        try {
            one = df.parse(str1);
            two = df.parse(str2);
            long time1 = one.getTime();
            long time2 = two.getTime();
            long diff;
            if (time1 < time2) {
                diff = time2 - time1;
            } else {
                diff = time1 - time2;
            }
            days = diff / (1000 * 60 * 60 * 24);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return days;
    }

    /**
     * 两个时间相差距离多少天多少小时多少分多少秒
     * 
     * @param str1
     *            时间参数 1 格式：1990-01-01 12:00:00
     * @param str2
     *            时间参数 2 格式：2009-01-01 12:00:00
     * @return long[] 返回值为：{天, 时, 分, 秒}
     */
    public static long[] getDistanceTimes(String str1, String str2) {
        DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date one;
        Date two;
        long day = 0;
        long hour = 0;
        long min = 0;
        long sec = 0;
        try {
            one = df.parse(str1);
            two = df.parse(str2);
            long time1 = one.getTime();
            long time2 = two.getTime();
            long diff;
            if (time1 < time2) {
                diff = time2 - time1;
            } else {
                diff = time1 - time2;
            }
            day = diff / (24 * 60 * 60 * 1000);
            hour = (diff / (60 * 60 * 1000) - day * 24);
            min = ((diff / (60 * 1000)) - day * 24 * 60 - hour * 60);
            sec = (diff / 1000 - day * 24 * 60 * 60 - hour * 60 * 60 - min * 60);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        long[] times = { day, hour, min, sec };
        return times;
    }

    /**
     * 两个时间相差距离多少天多少小时多少分多少秒
     * 
     * @param str1
     *            时间参数 1 格式：1990-01-01 12:00:00
     * @param str2
     *            时间参数 2 格式：2009-01-01 12:00:00
     * @return String 返回值为：xx天xx小时xx分xx秒
     */
    public static String getDistanceTime(String str1, String str2) {
        DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date one;
        Date two;
        long day = 0;
        long hour = 0;
        long min = 0;
        long sec = 0;
        try {
            one = df.parse(str1);
            two = df.parse(str2);
            long time1 = one.getTime();
            long time2 = two.getTime();
            long diff;
            if (time1 < time2) {
                diff = time2 - time1;
            } else {
                diff = time1 - time2;
            }
            day = diff / (24 * 60 * 60 * 1000);
            hour = (diff / (60 * 60 * 1000) - day * 24);
            min = ((diff / (60 * 1000)) - day * 24 * 60 - hour * 60);
            sec = (diff / 1000 - day * 24 * 60 * 60 - hour * 60 * 60 - min * 60);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return day + "天" + hour + "小时" + min + "分" + sec + "秒";
    }

    public static void main(String[] args) {
        String str = getDistanceTime("2014-1-7 12:12:33.0",
                "2014-6-6 12:12:12.0");
        System.out.println(str);
    }
}