Android 从服务器获取时间戳转换为年月日

用JAVA相关类转换。代码如下:

Calendar calendar = Calendar.getInstance();
         calendar.setTimeInMillis(NumberUtils.getLong(mss) * 1000);
         //mss即是从服务器获取的时间戳
         SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
         String date = sf.format(calendar.getTime()); 
         //date即是已转换好的时间。
          
           
  /**
     * 时间戳转换成日期格式字符串
     * @param seconds 精确到秒的字符串
     * @param formatStr
     * @return
     */
    public static String timeStamp2Date(String seconds,String format) {
        if(seconds == null || seconds.isEmpty() || seconds.equals("null")){
            return "";
        }
        if(format == null || format.isEmpty()) format = "yyyy-MM-dd HH:mm:ss";
        SimpleDateFormat sdf = new SimpleDateFormat(format);
        return sdf.format(new Date(Long.valueOf(seconds+"000")));
    }
    /**
     * 日期格式字符串转换成时间戳
     * @param date 字符串日期
     * @param format 如:yyyy-MM-dd HH:mm:ss
     * @return
     */
    public static String date2TimeStamp(String date_str,String format){
        try {
            SimpleDateFormat sdf = new SimpleDateFormat(format);
            return String.valueOf(sdf.parse(date_str).getTime()/1000);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "";
    }
     
    /**
     * 取得当前时间戳(精确到秒)
     * @return
     */
    public static String timeStamp(){
        long time = System.currentTimeMillis();
        String t = String.valueOf(time/1000);
        return t;
    }
     
    //  输出结果:
    //  timeStamp=1417792627
    //  date=2014-12-05 23:17:07
    //  1417792627
    public static void main(String[] args) {
        String timeStamp = timeStamp();
        System.out.println("timeStamp="+timeStamp);
         
        String date = timeStamp2Date(timeStamp, "yyyy-MM-dd HH:mm:ss");
        System.out.println("date="+date);
         
        String timeStamp2 = date2TimeStamp(date, "yyyy-MM-dd HH:mm:ss");
        System.out.println(timeStamp2);
    }
     
     
    //将时间戳转换为时分秒   
            String date = "142925";
 
        SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");
        Date currentTime = new Date();
        String dateString = dateFormat.format(currentTime);
        System.out.println(dateString);

 

posted @ 2017-12-04 11:39  星辰之力  阅读(2168)  评论(0编辑  收藏  举报