Long2Time.java long转换为时间串 HH:mm:ss

package org.ckl.nativetimer;import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.Date;public class Long2Time {public static String long2timeBySecond(long secend) {return long2timeByMilliSeconds(secend * 1000);}public static String long2timeByMilliSeconds(long milliseconds) {String timeStr = null;Date date = new Date();date.setTime(mZeroTime + milliseconds);timeStr = mSdf.format(date);System.out.println(timeStr);return timeStr;}private static SimpleDateFormat mSdf = new SimpleDateFormat("HH:mm:ss");private static long mZeroTime = getZeroTime();private static long getZeroTime() {long zeroTime = 0;try {zeroTime = mSdf.parse("00:00:00").getTime();} catch (ParseException e) {e.printStackTrace();}return zeroTime;}}