TimeUtil.java

import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

public class TimeUtil {
    public static Timestamp getTimestamp(){
        Timestamp timestamp = new Timestamp(System.currentTimeMillis());
        return timestamp;
    }
	
    public static String getTimestamp(String pattern){
        if(pattern.isEmpty()){
            pattern = "yyyy-MM-dd HH:mm:ss";
        }
        
        SimpleDateFormat dateformat = new SimpleDateFormat(pattern, Locale.KOREA);
        Timestamp timestamp = getTimestamp();
        String time = dateformat.format(timestamp);

        return time;
    }
	
	public static long getTimestamp(Timestamp timestamp){
        return timestamp.getTime();
    }
	
	public static String getTimeFormat(long time){		
        Date date = new Date(time);
        SimpleDateFormat dateFormat = 
		    new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.KOREA);
        return dateFormat.format(date);		
    }
}