时间格式化工具类，非常好用

来源：互联网发布：盛世传奇翅膀进阶数据编辑：程序博客网时间：2024/06/01 19:42
public class TimeUtil {    private static String DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";    public static String timeLogic(String dateStr) {        Calendar calendar = Calendar.getInstance();        calendar.get(Calendar.DAY_OF_MONTH);        long now = calendar.getTimeInMillis();        Date date = strToDate(dateStr);        calendar.setTime(date);        long past = calendar.getTimeInMillis();        // 相差的秒数        long time = (now - past) / 1000;        StringBuffer sb = new StringBuffer();        if (time > 0 && time < 60) { // 1小时内            return sb.append(time + "秒前").toString();        } else if (time > 60 && time < 3600) {            return sb.append(time / 60+"分钟前").toString();        } else if (time >= 3600 && time < 3600 * 24) {            return sb.append(time / 3600 +"小时前").toString();        }else if (time >= 3600 * 24 && time < 3600 * 48) {            return sb.append("昨天").toString();        }else if (time >= 3600 * 48 && time < 3600 * 72) {            return sb.append("前天").toString();        }else if (time >= 3600 * 72) {            return (int)(time/3600/24)+"天前";        }        return "";    }    /**     * 日期字符串转换为Date     * @param dateStr     * @return     */    public static Date strToDate(String dateStr) {        Date date = null;        if (!TextUtils.isEmpty(dateStr)) {            DateFormat df = new SimpleDateFormat(DATE_FORMAT);            try {                date = df.parse(dateStr);            } catch (ParseException e) {                e.printStackTrace();            }        }        return date;    }    /**     * 将10位或者13位时间戳转换为日期格式：2016-07-18     * @param times     * @return     */    public static String dateFormat(String times){        SimpleDateFormat sdf = new SimpleDateFormat("MM-dd");        if(times.length() == 13){            return sdf.format(new Date(Long.parseLong(times)));        }else if(times.length() == 10){            return sdf.format(new Date(Long.parseLong(times)*1000L));        }        return  null;    }    public static String dateFormat7(String times){        SimpleDateFormat sdf = new SimpleDateFormat("yy-MM-dd");        if(times.length() == 13){            return sdf.format(new Date(Long.parseLong(times)));        }else if(times.length() == 10){            return sdf.format(new Date(Long.parseLong(times)*1000L));        }        return  null;    }    /**     * 将10位或者13位时间戳转换为日期格式：2016年07月18日     * @param times     * @return     */    public static String dateFormat2(String times){        SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");        if(times.length() == 13){            return sdf.format(new Date(Long.parseLong(times)));        }else if(times.length() == 10){            return sdf.format(new Date(Long.parseLong(times)*1000L));        }        return  null;    }    /**     * 将10位或者13位时间戳转换为日期格式：2016-07-18 12:44     * @param times     * @return     */    public static String dateFormat3(String times){        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");        if(times.length() == 13){            return sdf.format(new Date(Long.parseLong(times)));        }else if(times.length() == 10){            return sdf.format(new Date(Long.parseLong(times)*1000L));        }        return  null;    }    public static String dateFormat6(String times){        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");        if(times.length() == 13){            return sdf.format(new Date(Long.parseLong(times)));        }else if(times.length() == 10){            return sdf.format(new Date(Long.parseLong(times)*1000L));        }        return  null;    }    /**     * 将yyyy-MM-dd HH:mm转换为时间戳     * @param times     * @return     */    public static Long dateFormat4(String times){        SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");        try {            Date date = sdf.parse(times);            return  date.getTime();        } catch (ParseException e) {            e.printStackTrace();        }        return  null;    }    /**     * 计算两个日期之间相差的天数     * @param currentTime yyyy-MM-dd HH:mm     * @param publishTime yyyy-MM-dd HH:mm     * @return 返回整型的天数     */    public static int betweenDays(String currentTime,String publishTime){        double dayss = -(dateFormat4(currentTime) - dateFormat4(publishTime)) / (1000*3600*24);        String[] ss = (dayss+"").split("\\.");        int days = Integer.valueOf(ss[0]);        return days;    }    /**     * 计算两个日期之间相差的小时     * @param currentTime yyyy-MM-dd HH:mm     * @param publishTime yyyy-MM-dd HH:mm     * @return     */    public static int betweenHours(String currentTime,String publishTime){        double dayss = -(dateFormat4(currentTime) - dateFormat4(publishTime)) / (1000*3600);        String[] ss = (dayss+"").split("\\.");        int hours = Integer.valueOf(ss[0]);        return hours;    }    /**     * 将10位或者13位时间戳转换为日期格式：2016-07-18 12:44:22     * @param times     * @return     */    public static String dateFormat5(String times){        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");        if(times.length() == 13){            return sdf.format(new Date(Long.parseLong(times)));        }else if(times.length() == 10){            return sdf.format(new Date(Long.parseLong(times)*1000L));        }        return  null;    }}
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