Java tutorial
//package com.java2s; import java.text.SimpleDateFormat; import java.util.Date; public class Main { public static String formate2String(String mills) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Long l = Long.parseLong(mills); Date date; date = new Date(l); String format = sdf.format(date); return format; } }