[size=medium;]package[/size] ben.util; 

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(&quot;yyyy-MM-dd HH:mm:ss&quot;); 

        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(&quot;yyyy-MM-dd HH:mm:ss&quot;); 

        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"; 

    } 

}