DateUtil.java

package com.kaishengit.util;

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

public class DateUtil {

	public static String getNiceDate(String dateString) {
		String result = dateString;
		SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		try {
			Date date = df.parse(dateString);
			
			long time = System.currentTimeMillis() - date.getTime();
			time = time / 1000;

			if(time < 10) {
				result = "刚刚";
			} else if(time >= 10 && time < 60) {
				result = "一分钟之内";
			} else if(time >= 60 && time < 3600) {
				result = "一小时之内";
			} else if(time >= 3600 && time < 86400) {
				result = "今天";
			}
		} catch (ParseException e) {
			e.printStackTrace();
		}
		
		return result;
	}
	
	public static void main(String[] args) {
		System.out.println(getNiceDate("2012-08-06 18:25:34"));
	}
}