java中如何转换日期

发布于 2024-12-11 07:54:33 字数 328 浏览 0 评论 0原文

我是安卓新手。我必须将以下日期转换为这个时间戳（Wed Oct 12 14:17:42 GMT+05:30 2011）

Thu, 27 May 2010 12:37:27 GMT

这是我通过标头从服务器获取的日期。我已将其转换为 String 对象。现在我必须将其转换为日期格式，例如： Wed Oct 12 14:17:42 GMT+05:30 2011

请您帮我如何将其转换为 (Wed Oct 12 14:17:42 GMT+05:30 2011) 这种格式使用时间戳。

原文

I am new in android .
I have to convert following date into this time stamp (Wed Oct 12 14:17:42 GMT+05:30 2011)

Thu, 27 May 2010 12:37:27 GMT

This is the date that I am getting from the server through the header. I have converted it into the String object. Now I have to convert it into the Date format like: Wed Oct 12 14:17:42 GMT+05:30 2011

Please could you help me how should I convert it into the (Wed Oct 12 14:17:42 GMT+05:30 2011) this format using timestamp.

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嘴硬脾气大 2024-12-18 07:54:33

查看提供 parse() 和 format() 方法的 DateFormat 或 SimpleDateFormat 。 DateFormat 提供了一系列标准格式，而 SimpleDateFormat 允许您提供自己的格式表达式。

输入日期的示例：

//note that you need the locale as well, since the weekdays and months are written in a specific language, English in that case
SimpleDateFormat parseFormat = new SimpleDateFormat( "E, dd MMM yyyy HH:mm:ss z", Locale.ENGLISH );
SimpleDateFormat writeFormat = new SimpleDateFormat( "E MMM dd HH:mm:ss z yyyy", Locale.ENGLISH );
writeFormat.setTimeZone( TimeZone.getTimeZone( "GMT" ) );

Date tDate = parseFormat.parse( "Wed, 12 Oct 2011 14:17:42 GMT" );

System.out.println(writeFormat.format(tDate )); //Wed Oct 12 14:17:42 GMT 2011

编辑：如果您想要更可用的 API，请尝试 JodaTime。

Have a look at DateFormat or SimpleDateFormat which provide parse() and format() methods. DateFormat provides a bunch of standard formats whereas SimpleDateFormat allows you to provide your own format expression.

Example for your input date:

//note that you need the locale as well, since the weekdays and months are written in a specific language, English in that case
SimpleDateFormat parseFormat = new SimpleDateFormat( "E, dd MMM yyyy HH:mm:ss z", Locale.ENGLISH );
SimpleDateFormat writeFormat = new SimpleDateFormat( "E MMM dd HH:mm:ss z yyyy", Locale.ENGLISH );
writeFormat.setTimeZone( TimeZone.getTimeZone( "GMT" ) );

Date tDate = parseFormat.parse( "Wed, 12 Oct 2011 14:17:42 GMT" );

System.out.println(writeFormat.format(tDate )); //Wed Oct 12 14:17:42 GMT 2011

Edit: If you want a more usable API, try JodaTime.

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