Java將時間處理成xx天前、xx年前的格式

    import java.text.ParseException;

    import java.text.SimpleDateFormat;

    import java.util.Calendar;

    import java.util.Date;


/** 
 *  
 * @author Robot 
 * 
 */  
public class test {  

    public static Date getDateByString(String time) {  
        Date date = null;  
        if(time == null) return date;  
        String date_format = "yyyy-MM-dd HH:mm:ss";  
        SimpleDateFormat format = new SimpleDateFormat(date_format);  
        try {  
            date = format.parse(time);  
        } catch (ParseException e) {  
            e.printStackTrace();  
        }  
        return date;  
    }  

    public static String getShortTime(String time) {  
        String shortstring = null;  
        long now = Calendar.getInstance().getTimeInMillis();  
        Date date = getDateByString(time);  
        if(date == null) return shortstring;  
        long deltime = (now - date.getTime())/1000;  
        if(deltime > 365*24*60*60) {  
            shortstring = (int)(deltime/(365*24*60*60)) + "年前";  
        } else if(deltime > 24*60*60) {  
            shortstring = (int)(deltime/(24*60*60)) + "天前";  
        } else if(deltime > 60*60) {  
            shortstring = (int)(deltime/(60*60)) + "小時前";  
        } else if(deltime > 60) {  
            shortstring = (int)(deltime/(60)) + "分前";  
        } else if(deltime > 1) {  
            shortstring = deltime + "秒前";  
        } else {  
            shortstring = "1秒前";  
        }  
        return shortstring;  
    }  

    public static void main(String[] args) {  
        String time = "2012-02-28 10:40:55";  
        System.out.println(getShortTime(time));  
    }  

}  </pre><br />