从时间戳到正常日期[重复](From timestamp to normal date [duplicate])

从时间戳到正常日期[重复](From timestamp to normal date [duplicate])

这个问题在这里已有答案：

Java：来自unix时间戳的日期 8个答案

我的TimeStamp时间为String 1374160160 ，相当于1374160160 07/18/2013 。

如果有办法如何将此TimeStamp转换为July 18, 2013格式的日期？

这是我的代码片段：

try{ String timeStamp = "1374160160"; DateFormat sdf = new SimpleDateFormat("MM/dd/yyyy"); Date netDate = (new Date(timeStamp)); return sdf.format(netDate); } catch(Exception ex) { return ""; }

它总是返回01/17/1970为什么？

第二个问题是不推荐使用new Date(String) 。

总结一下：

如何从时间戳创建正常日期（ July 18, 2013 ）并避免使用已弃用的方法？

This question already has an answer here:

Java: Date from unix timestamp 8 answers

I have TimeStamp time as String 1374160160 which is equivalent 07/18/2013.

If there is a way how I can convert this TimeStamp to date with format July 18, 2013 ?

This is my code snippet:

try{ String timeStamp = "1374160160"; DateFormat sdf = new SimpleDateFormat("MM/dd/yyyy"); Date netDate = (new Date(timeStamp)); return sdf.format(netDate); } catch(Exception ex) { return ""; }

It always returns 01/17/1970 why?

The second problem is that new Date(String) is deprecated.

To sum up:

How to create normal date (July 18, 2013) from time-stamp and avoid the deprecated methods ?

最满意答案

您的timeStamp实例保持秒，但Java Date构造函数需要毫秒。 通过文档 ：

分配一个Date对象并对其进行初始化，以表示自标准基准时间称为“epoch”以来的指定毫秒数，即1970年1月1日00:00:00 GMT

所以你应该使用这个：

String timeStamp = "1374160160"; long timeMillis = Long.valueOf(timeStamp) * 1000; Date netDate = new Date(timeMillis);

代替：

String timeStamp = "1374160160"; Date netDate = (new Date(timeStamp));

Your timeStamp instance holds seconds but Java Date constructor expects milliseconds. Via documentation:

Allocates a Date object and initializes it to represent the specified number of milliseconds since the standard base time known as "the epoch", namely January 1, 1970, 00:00:00 GMT

So you should use this:

String timeStamp = "1374160160"; long timeMillis = Long.valueOf(timeStamp) * 1000; Date netDate = new Date(timeMillis);

instead of:

String timeStamp = "1374160160"; Date netDate = (new Date(timeStamp));