package com.study.util;

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

public class DateUtil {

    public static void main(String[] args) {
        Date d = new Date();
        long i = d.getTime() - 10000000;
        System.out.println(getBefore(new Date(i)));
    }
    public static String getBefore(Date date){
        long old = date.getTime();
        long now = (new Date()).getTime();
        long re = (now - old) / (1000 * 60);//分钟
        long days = re / (24 * 60);
        StringBuffer sb = new StringBuffer();
        if(days > 1){
            SimpleDateFormat sdf = new SimpleDateFormat("MM月dd日 hh:mm:ss");
            sb.append(sdf.format(date));
        }else if(days == 1){
            SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss");
            sb.append("昨天").append(sdf.format(date));
        }else{
            re = re % (24 * 60);
            long hours = re / 60;
            long mins = re % 60;
            if(hours != 0){
                sb.append(hours).append("小时");
            }
            if(mins != 0){
                sb.append(mins).append("分钟以前");
            }
        }
        return sb.toString();
    }
}

------解决方案--------------------
Java code

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

public class MyDate {

    /**
     * @param args
     * @throws Exception
     */
    public static void main(String[] args) throws Exception {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        System.out.println(new ChsDate(new Date()));
        System.out.println(new ChsDate(sdf.parse("2012-09-27 15:58:30")));
        System.out.println(new ChsDate(sdf.parse("2012-09-27 15:50:00")));
        System.out.println(new ChsDate(sdf.parse("2012-09-27 10:50:00")));
        System.out.println(new ChsDate(sdf.parse("2012-08-27 10:50:00")));
    }
}

class ChsDate {

    private static String NOW = "现在";

    private static String HOURS_AGO = "小时前";

    private static String MINUTES_AGO = "分钟前";

    private static String SECONDS_AGO = "秒前";

    private static long SECOND = 1000L;

    private static long MINUTE = 60 * 1000L;

    private static long HOUR = 60 * 60 * 1000L;

    private static long DAY = 24 * 60 * 60 * 1000L;

    private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");

    private Date date;

    public ChsDate(Date date) {
        this.date = date;
    }

    @Override
    public String toString() {

        long c = new Date().getTime();
        long p = this.date.getTime();

        if (c - p > DAY) {
            return sdf.format(date);
        } else if (c - p > HOUR) {
            return (c - p) / HOUR + HOURS_AGO;
        } else if (c - p > MINUTE) {
            return (c - p) / MINUTE + MINUTES_AGO;
        } else if (c - p > SECOND) {
            return (c - p) / SECOND + SECONDS_AGO;
        }
        return NOW;
    }
}

------解决方案--------------------
Java code

package zl.framework.util.tool;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import zl.framework.entity.Settled;

/**
 * 处理日期的工具类
 * @version 2.0
 */
public class DateUtil {
    
    private static DateUtil bean = new DateUtil();
    
    /**
     * 单例模式获得bean
     * @return DateUtil
     */
    public static Date