小TIP：Java里的时间比较

import java.text.*;

import java.util.*;

public class TimeCompare{

public static void main(String[] args){

boolean flag = isDateBefore("2004-09-09 12:12:12","2005-09-09 16:00:00");

System.out.println(flag);

flag = isDateBefore("2006-09-09 01:01:01","2005-09-09 16:00:00");

System.out.println(flag);

flag = isDateBefore("2005-09-09 01:01:01");

System.out.println(flag);

}

//判断时间date1是否在时间date2之前

//时间格式 2005-4-21 16:16:34

public static boolean isDateBefore(String date1,String date2){

try{

DateFormat df = DateFormat.getDateTimeInstance();

return df.parse(date1).before(df.parse(date2));

}catch(ParseException e){

System.out.print("[SYS] " + e.getMessage());

return false;

}

}

//判断当前时间是否在时间date2之前

//时间格式 2005-4-21 16:16:34

public static boolean isDateBefore(String date2){

try{

Date date1 = new Date();

DateFormat df = DateFormat.getDateTimeInstance();

return date1.before(df.parse(date2));

}catch(ParseException e){

System.out.print("[SYS] " + e.getMessage());

return false;

}

}

}