TimeUtil.java

package com.yyquan.jzh.util;

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

/**
 * Created by Administrator on 2016/1/10.
 */
public class TimeUtil {

    public static String getDate() {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        return sdf.format(new Date());
    }

    public static String getTime(long time) {
        SimpleDateFormat format = new SimpleDateFormat("yy-MM-dd HH:mm");
        return format.format(new Date(time));
    }

    public static String getHourAndMin(long time) {
        SimpleDateFormat format = new SimpleDateFormat("HH:mm");
        return format.format(new Date(time));
    }

    public static String getChatTime(long timesamp) {
        String result = "";
        SimpleDateFormat sdf = new SimpleDateFormat("dd");
        Date today = new Date(System.currentTimeMillis());
        Date otherDay = new Date(timesamp);
        int temp = Integer.parseInt(sdf.format(today))
                - Integer.parseInt(sdf.format(otherDay));

        switch (temp) {
            case 0:
                result = "今天 " + getHourAndMin(timesamp);
                break;
            case 1:
                result = "昨天 " + getHourAndMin(timesamp);
                break;
            case 2:
                result = "前天 " + getHourAndMin(timesamp);
                break;

            default:
                // result = temp + "天前 ";
                result = getTime(timesamp);
                break;
        }

        return result;
    }
}