如何将currentTimeMillis转换为Java的日期？ [英] How to convert currentTimeMillis to a date in Java?

问题描述

我在服务器中生成的某些日志文件中有毫秒数，我也知道生成日志文件的区域设置，我的问题是以指定的格式将毫秒转换为日期。
该日志的处理正在不同时区的服务器上进行。转换为SimpleDateFormat程序时，正在采用机器的日期，因此格式化日期不代表服务器的正确时间。有没有办法处理这个优雅？

I have milliseconds in certain log file generated in server, I also know the locale from where the log file was generated, my problem is to convert milliseconds to date in specified format. The processing of that log is happening on server located in different time zone. While converting to "SimpleDateFormat" program is taking date of the machine as such formatted date do not represent correct time of the server. Is there any way to handle this elegantly ?

long yourmilliseconds = 1322018752992l;
        //1322018752992-Nov 22, 2011 9:25:52 PM 

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss,SSS",Locale.US);

GregorianCalendar calendar = new GregorianCalendar(TimeZone.getTimeZone("US/Central"));
calendar.setTimeInMillis(yourmilliseconds);

System.out.println("GregorianCalendar -"+sdf.format(calendar.getTime()));

DateTime jodaTime = new DateTime(yourmilliseconds, 
                    DateTimeZone.forTimeZone(TimeZone.getTimeZone("US/Central")));
DateTimeFormatter parser1 = DateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss,SSS");

System.out.println("jodaTime "+parser1.print(jodaTime));

输出：

Gregorian Calendar -2011-11-23 08:55:52,992
jodaTime 2011-11-22 21:25:52,992

推荐答案

Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(timeStamp);

int mYear = calendar.get(Calendar.YEAR);
int mMonth = calendar.get(Calendar.MONTH);
int mDay = calendar.get(Calendar.DAY_OF_MONTH);

这篇关于如何将currentTimeMillis转换为Java的日期？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！