Java 以 yyyy-MM-dd hh.mm.ss 格式获取当前日期时间
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get current date time in yyyy-MM-dd hh.mm.ss format
提问by CodeMed
I have an application which will ALWAYS be run in only one single time zone, so I do not need to worry about converting between time zones. However, the datetime must always be printed out in the following format:
我有一个应用程序，它总是只在一个时区运行，所以我不需要担心时区之间的转换。但是，必须始终按以下格式打印日期时间：
yyyy-MM-dd hh.mm.ss
The code below fails to print the proper format:
下面的代码无法打印正确的格式：
public void setCreated(){
DateTime now = new org.joda.time.DateTime();
String pattern = "yyyy-MM-dd hh.mm.ss";
created = DateTime.parse(now.toString(), DateTimeFormat.forPattern(pattern));
System.out.println("''''''''''''''''''''''''''' created is: "+created);
}
The setCreated() method results in the following output:
setCreated() 方法产生以下输出：
"2013-12-16T20:06:18.672-08:00"
How can I change the code in setCreated() so that it prints out the following instead:
如何更改 setCreated() 中的代码，以便它打印出以下内容：
"2013-12-16 20:06:18"
采纳答案by Sotirios Delimanolis
You aren't parsing anything, you are formatting it. You need to use DateTimeFormatter#print(ReadableInstant).
你没有解析任何东西，你正在格式化它。您需要使用DateTimeFormatter#print(ReadableInstant).
DateTime now = new org.joda.time.DateTime();
String pattern = "yyyy-MM-dd hh.mm.ss";
DateTimeFormatter formatter = DateTimeFormat.forPattern(pattern);
String formatted = formatter.print(now);
System.out.println(formatted);
which prints
哪个打印
2013-12-16 11.13.24
This doesn't match your format, but I'm basing it on your code, not on your expected output.
这与您的格式不匹配，但我基于您的代码，而不是您的预期输出。
回答by Lijo
public static void main(String args[])
{
SimpleDateFormat sdfDate = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//dd/MM/yyyy
Date now = new Date();
String strDate = sdfDate.format(now);
System.out.println(strDate);
}
out put 2013-12-17 09:48:11
输出 2013-12-17 09:48:11
回答by AmirtharajCVijay
回答by rocks
Try this:
尝试这个：
org.joda.time.DateTime now = new org.joda.time.DateTime();
String pattern = "yyyy-MM-dd hh.mm.ss";
DateTimeFormatter formatter = DateTimeFormat.forPattern(pattern);
String formatted = formatter.print(now);
LocalDateTime date = formatter.parseLocalDateTime(formatted);
System.out.println(date.toDateTime());
回答by totran
And now in Java 9, you can use this:
现在在 Java 9 中，你可以使用这个：
LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd hh.mm.ss"));
