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計算兩個時間相差幾天,幾分

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* 時間相距
* @author Ben
* @version 1.0
* @date 2009-10-21 16:38:51
*/
public class DateDistance {
    
    /**
     * 兩個時間之間相差距離多少天
     * @param one 時間引數 1:
     * @param two 時間引數 2:
     * @return 相差天數
     */
    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;
    }
    
    /**
     * 兩個時間相差距離多少天多少小時多少分多少秒
     * @param str1 時間引數 1 格式:1990-01-01 12:00:00
     * @param str2 時間引數 2 格式:2009-01-01 12:00:00
     * @return long[] 返回值為:{天, 時, 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;
    }
    /**
     * 兩個時間相差距離多少天多少小時多少分多少秒
     * @param str1 時間引數 1 格式:1990-01-01 12:00:00
     * @param str2 時間引數 2 格式:2009-01-01 12:00:00
     * @return String 返回值為:xx天xx小時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 + "小時" + min + "分" + sec + "秒";
    }

    //判斷超過三分鐘沒
public static String getDistanceTime(String str1, String str2) {
        DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date one;
        Date two;
        long min = 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;
            }
       
           
            min = ((diff / (60 * 1000));
        } catch (ParseException e) {
            e.printStackTrace();
        }
        if(min>3){
        return "超過了";
}

        return "沒有超過";
    }
}