Groovy字符串到日期 [英] Groovy String to Date
问题描述
我目前正在尝试转换一个我必须做的日期的字符串,而不用做任何太乏味的事情。
String theDate =28/09/2010 16:02:43;
def newdate = new Date()。parse(d / M / yyyy H:m:s,theDate)
输出:
Tue Aug 10 16:02:43 PST 2010
上面的代码工作得很好,但是当我的字符串更改为如下所示:
String testDate =Tue Aug 10 16:02:43 PST 2010
def newerdate = new Date()。parse(d / M / yyyy H: m:s,testDate)
它告诉我Tue没有这样的价值。我试图在日期的解析中抛出一个'E',但是它表示日期无法被解析。
有人可以解释我应该怎么去解析第二个例子?
parse()的第一个参数是预期的格式。您必须将其更改为 Date.parse(E MMM dd H:m:s z yyyy,testDate)
才能正常工作。 (注意,您不需要创建一个新的Date对象,它是一个静态方法)
如果您不提前知道什么格式,您将必须找到一个特殊的解析库。在Ruby中有一个名为 Chronic 的库,但是我并不知道Groovy的等价物。 编辑:库中有一个名为 jChronic 的Java端口,您可能需要检查出来。
I am coding this with Groovy
I am currently trying to convert a string that I have to a date without having to do anything too tedious.
String theDate = "28/09/2010 16:02:43";
def newdate = new Date().parse("d/M/yyyy H:m:s", theDate)
Output:
Tue Aug 10 16:02:43 PST 2010
The above code works just fine, however when my string changes to something like:
String testDate = "Tue Aug 10 16:02:43 PST 2010"
def newerdate = new Date().parse("d/M/yyyy H:m:s", testDate)
It tells me that "there is no such value for Tue". I tried to throw an 'E' in the parse for the date but it said the date was not able to be parsed.
Can someone explain how I should go about parsing the second example?
The first argument to parse() is the expected format. You have to change that to Date.parse("E MMM dd H:m:s z yyyy", testDate)
for it to work. (Note you don't need to create a new Date object, it's a static method)
If you don't know in advance what format, you'll have to find a special parsing library for that. In Ruby there's a library called Chronic, but I'm not aware of a Groovy equivalent. Edit: There is a Java port of the library called jChronic, you might want to check it out.
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