在java中将字符串转换为FileTime [英] Converting a string to FileTime in java

问题描述

我有这个问题.问题:我正在制作一个程序，其中我通过 JFormatedTextField 接收用户输入，即字符串格式，然后我希望这个值是用户选择的文件的创建时间.

I have this problem. PROBLEM: I am making a program in which i am taking input from user via a JFormatedTextField i.e. in string format and then i want this value to be creation time of a file chosen by user.

所以我需要使用 setTimes() 函数，它只接受 fileTime 格式.所以问题是:::: 如何将字符串转换为符合条件的文件时间，以便它可以被 .nio.attribute 中预定义的函数 setTimes() 使用.

So I need to uses setTimes() function which only accepts fileTime format. So the PROBLEM is:::: how do I convert the string into an eligible fileTime so that it can be used by the function setTimes() which is predefined in .nio.attribute.

http://www.docjar.com/docs/api/java/nio/file/attribute/FileTime.html

推荐答案

取决于输入的格式(我想它类似于 "dd/MM/yy HH:mm:ss")，您可以使用 SimpleDateFormat 将其转换为 Date，从 Date 您可以使用 Date.getTime> 获取毫秒() 并最终使用该值构建带有 java.nio.file.attribute.FileTime.fromMillis(long)

Depending on what the format of the input is (I suppose it is something like "dd/MM/yy HH:mm:ss"), you can convert this to a Date using SimpleDateFormat, from the Date you can get the milliseconds using Date.getTime() and finally use that value to build a FileTime with java.nio.file.attribute.FileTime.fromMillis(long)

应该这样做:

String text = textField.getText();
Date date = new SimpleDateFormat("dd/MM/yy HH:mm:ss").parse(text);
FileTime time = FileTime.fromMillis(date.getTime());

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