比较两个时间的大小

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


public class BiJiao_TwoTimes {
	public static void main(String[] args) {
		Date date=StringToDate("2012-07-27 08:02:06","yyyy-MM-dd HH:mm:ss");
		Date date2=StringToDate("2012-07-27 08:02:05","yyyy-MM-dd HH:mm:ss");
		System.out.println(date);
		System.out.println(date2);
		System.out.println(date.before(date2));//调用函数判断
		

	}
	public static Date StringToDate(String dateStr,String formatStr){
		DateFormat dd=new SimpleDateFormat(formatStr);
		Date date=null;
		try {
			date = dd.parse(dateStr);
		} catch (ParseException e) {
			e.printStackTrace();
		}
		return date;
	} 
}